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/Problem18_label24_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 16:57:34,349 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 16:57:34,351 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 16:57:34,363 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 16:57:34,364 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 16:57:34,365 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 16:57:34,366 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 16:57:34,368 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 16:57:34,369 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 16:57:34,370 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 16:57:34,371 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 16:57:34,371 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 16:57:34,372 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 16:57:34,373 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 16:57:34,374 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 16:57:34,375 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 16:57:34,375 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 16:57:34,377 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 16:57:34,379 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 16:57:34,381 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 16:57:34,382 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 16:57:34,383 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 16:57:34,386 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 16:57:34,395 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 16:57:34,415 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 16:57:34,416 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 16:57:34,416 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 16:57:34,417 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-24 16:57:34,417 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-24 16:57:34,417 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-24 16:57:34,418 INFO L133 SettingsManager]: * Use SBE=true [2018-10-24 16:57:34,418 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 16:57:34,418 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 16:57:34,418 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 16:57:34,418 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 16:57:34,419 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 16:57:34,419 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 16:57:34,419 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 16:57:34,419 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 16:57:34,419 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 16:57:34,420 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 16:57:34,420 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 16:57:34,420 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 16:57:34,420 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 16:57:34,420 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 16:57:34,420 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 16:57:34,421 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 16:57:34,421 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-24 16:57:34,421 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 16:57:34,421 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 16:57:34,421 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 16:57:34,422 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 16:57:34,463 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 16:57:34,481 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 16:57:34,485 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 16:57:34,486 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 16:57:34,487 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 16:57:34,488 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label24_true-unreach-call.c [2018-10-24 16:57:34,544 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/04e3696c9/801cb75e1b8b4c2488b032380f3bb8ac/FLAG402e3a464 [2018-10-24 16:57:35,310 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 16:57:35,311 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label24_true-unreach-call.c [2018-10-24 16:57:35,340 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/04e3696c9/801cb75e1b8b4c2488b032380f3bb8ac/FLAG402e3a464 [2018-10-24 16:57:35,357 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/04e3696c9/801cb75e1b8b4c2488b032380f3bb8ac [2018-10-24 16:57:35,369 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 16:57:35,370 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 16:57:35,371 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 16:57:35,371 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 16:57:35,375 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 16:57:35,376 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 04:57:35" (1/1) ... [2018-10-24 16:57:35,379 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5132971b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:57:35, skipping insertion in model container [2018-10-24 16:57:35,379 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 04:57:35" (1/1) ... [2018-10-24 16:57:35,390 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 16:57:35,509 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 16:57:36,484 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 16:57:36,489 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 16:57:36,939 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 16:57:36,965 INFO L193 MainTranslator]: Completed translation [2018-10-24 16:57:36,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:57:36 WrapperNode [2018-10-24 16:57:36,966 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 16:57:36,967 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 16:57:36,967 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 16:57:36,967 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 16:57:36,981 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:57:36" (1/1) ... [2018-10-24 16:57:37,040 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:57:36" (1/1) ... [2018-10-24 16:57:37,482 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 16:57:37,483 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 16:57:37,483 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 16:57:37,484 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 16:57:37,495 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:57:36" (1/1) ... [2018-10-24 16:57:37,495 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:57:36" (1/1) ... [2018-10-24 16:57:37,515 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:57:36" (1/1) ... [2018-10-24 16:57:37,516 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:57:36" (1/1) ... [2018-10-24 16:57:37,626 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:57:36" (1/1) ... [2018-10-24 16:57:37,670 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:57:36" (1/1) ... [2018-10-24 16:57:37,721 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:57:36" (1/1) ... [2018-10-24 16:57:37,775 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 16:57:37,775 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 16:57:37,776 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 16:57:37,776 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 16:57:37,777 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:57:36" (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 16:57:37,844 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-24 16:57:37,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 16:57:37,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 16:57:44,587 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 16:57:44,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 04:57:44 BoogieIcfgContainer [2018-10-24 16:57:44,589 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 16:57:44,595 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 16:57:44,595 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 16:57:44,598 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 16:57:44,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 04:57:35" (1/3) ... [2018-10-24 16:57:44,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@604c1596 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 04:57:44, skipping insertion in model container [2018-10-24 16:57:44,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:57:36" (2/3) ... [2018-10-24 16:57:44,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@604c1596 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 04:57:44, skipping insertion in model container [2018-10-24 16:57:44,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 04:57:44" (3/3) ... [2018-10-24 16:57:44,602 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label24_true-unreach-call.c [2018-10-24 16:57:44,613 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 16:57:44,623 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 16:57:44,639 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 16:57:44,686 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-24 16:57:44,687 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 16:57:44,687 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 16:57:44,687 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 16:57:44,687 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 16:57:44,687 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 16:57:44,688 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 16:57:44,688 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 16:57:44,688 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 16:57:44,723 INFO L276 IsEmpty]: Start isEmpty. Operand 758 states. [2018-10-24 16:57:44,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-10-24 16:57:44,735 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:57:44,739 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] [2018-10-24 16:57:44,741 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:57:44,746 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:57:44,746 INFO L82 PathProgramCache]: Analyzing trace with hash -2139005982, now seen corresponding path program 1 times [2018-10-24 16:57:44,749 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:57:44,749 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:57:44,797 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:57:44,797 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:57:44,798 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:57:44,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:57:45,240 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-10-24 16:57:45,326 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 16:57:45,328 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:57:45,329 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 16:57:45,334 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 16:57:45,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 16:57:45,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:57:45,353 INFO L87 Difference]: Start difference. First operand 758 states. Second operand 4 states. [2018-10-24 16:57:59,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:57:59,397 INFO L93 Difference]: Finished difference Result 3599 states and 7034 transitions. [2018-10-24 16:57:59,397 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 16:57:59,399 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 52 [2018-10-24 16:57:59,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:57:59,447 INFO L225 Difference]: With dead ends: 3599 [2018-10-24 16:57:59,447 INFO L226 Difference]: Without dead ends: 2831 [2018-10-24 16:57:59,454 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-24 16:57:59,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2831 states. [2018-10-24 16:57:59,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2831 to 2831. [2018-10-24 16:57:59,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2831 states. [2018-10-24 16:57:59,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2831 states to 2831 states and 4101 transitions. [2018-10-24 16:57:59,637 INFO L78 Accepts]: Start accepts. Automaton has 2831 states and 4101 transitions. Word has length 52 [2018-10-24 16:57:59,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:57:59,637 INFO L481 AbstractCegarLoop]: Abstraction has 2831 states and 4101 transitions. [2018-10-24 16:57:59,637 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 16:57:59,638 INFO L276 IsEmpty]: Start isEmpty. Operand 2831 states and 4101 transitions. [2018-10-24 16:57:59,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2018-10-24 16:57:59,650 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:57:59,651 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 16:57:59,652 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:57:59,652 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:57:59,652 INFO L82 PathProgramCache]: Analyzing trace with hash -1349773097, now seen corresponding path program 1 times [2018-10-24 16:57:59,652 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:57:59,653 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:57:59,654 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:57:59,654 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:57:59,655 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:57:59,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:58:00,292 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2018-10-24 16:58:00,292 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:58:00,293 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 16:58:00,295 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 16:58:00,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 16:58:00,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-24 16:58:00,295 INFO L87 Difference]: Start difference. First operand 2831 states and 4101 transitions. Second operand 5 states. [2018-10-24 16:58:10,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:58:10,853 INFO L93 Difference]: Finished difference Result 8424 states and 12649 transitions. [2018-10-24 16:58:10,854 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 16:58:10,854 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 214 [2018-10-24 16:58:10,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:58:10,880 INFO L225 Difference]: With dead ends: 8424 [2018-10-24 16:58:10,880 INFO L226 Difference]: Without dead ends: 5595 [2018-10-24 16:58:10,885 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-10-24 16:58:10,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5595 states. [2018-10-24 16:58:10,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5595 to 5595. [2018-10-24 16:58:10,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5595 states. [2018-10-24 16:58:10,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5595 states to 5595 states and 7136 transitions. [2018-10-24 16:58:10,988 INFO L78 Accepts]: Start accepts. Automaton has 5595 states and 7136 transitions. Word has length 214 [2018-10-24 16:58:10,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:58:10,989 INFO L481 AbstractCegarLoop]: Abstraction has 5595 states and 7136 transitions. [2018-10-24 16:58:10,989 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 16:58:10,989 INFO L276 IsEmpty]: Start isEmpty. Operand 5595 states and 7136 transitions. [2018-10-24 16:58:10,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2018-10-24 16:58:10,995 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:58:10,995 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, 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] [2018-10-24 16:58:10,996 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:58:10,996 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:58:10,996 INFO L82 PathProgramCache]: Analyzing trace with hash -1534682539, now seen corresponding path program 1 times [2018-10-24 16:58:10,996 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:58:10,996 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:58:10,998 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:58:10,998 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:58:10,998 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:58:11,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:58:11,472 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 99 proven. 4 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2018-10-24 16:58:11,473 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 16:58:11,473 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 16:58:11,488 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:58:11,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:58:11,612 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 16:58:11,724 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 166 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 16:58:11,752 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 16:58:11,752 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2018-10-24 16:58:11,753 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 16:58:11,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 16:58:11,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:58:11,754 INFO L87 Difference]: Start difference. First operand 5595 states and 7136 transitions. Second operand 4 states. [2018-10-24 16:58:18,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:58:18,893 INFO L93 Difference]: Finished difference Result 16041 states and 21992 transitions. [2018-10-24 16:58:18,893 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 16:58:18,893 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 303 [2018-10-24 16:58:18,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:58:18,943 INFO L225 Difference]: With dead ends: 16041 [2018-10-24 16:58:18,943 INFO L226 Difference]: Without dead ends: 11139 [2018-10-24 16:58:18,953 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 303 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 16:58:18,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11139 states. [2018-10-24 16:58:19,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11139 to 7668. [2018-10-24 16:58:19,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7668 states. [2018-10-24 16:58:19,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7668 states to 7668 states and 9572 transitions. [2018-10-24 16:58:19,118 INFO L78 Accepts]: Start accepts. Automaton has 7668 states and 9572 transitions. Word has length 303 [2018-10-24 16:58:19,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:58:19,119 INFO L481 AbstractCegarLoop]: Abstraction has 7668 states and 9572 transitions. [2018-10-24 16:58:19,119 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 16:58:19,119 INFO L276 IsEmpty]: Start isEmpty. Operand 7668 states and 9572 transitions. [2018-10-24 16:58:19,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2018-10-24 16:58:19,126 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:58:19,127 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 16:58:19,127 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:58:19,127 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:58:19,127 INFO L82 PathProgramCache]: Analyzing trace with hash -1961480248, now seen corresponding path program 1 times [2018-10-24 16:58:19,127 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:58:19,128 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:58:19,129 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:58:19,130 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:58:19,130 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:58:19,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:58:19,635 WARN L179 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 7 [2018-10-24 16:58:19,824 WARN L179 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 14 [2018-10-24 16:58:19,999 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 185 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 16:58:19,999 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 16:58:19,999 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 16:58:20,011 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:58:20,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:58:20,115 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 16:58:20,345 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2018-10-24 16:58:20,365 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 16:58:20,366 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2018-10-24 16:58:20,367 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 16:58:20,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 16:58:20,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-10-24 16:58:20,368 INFO L87 Difference]: Start difference. First operand 7668 states and 9572 transitions. Second operand 6 states. [2018-10-24 16:58:30,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:58:30,513 INFO L93 Difference]: Finished difference Result 23637 states and 30091 transitions. [2018-10-24 16:58:30,521 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 16:58:30,521 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 326 [2018-10-24 16:58:30,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:58:30,569 INFO L225 Difference]: With dead ends: 23637 [2018-10-24 16:58:30,570 INFO L226 Difference]: Without dead ends: 15278 [2018-10-24 16:58:30,580 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 325 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2018-10-24 16:58:30,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15278 states. [2018-10-24 16:58:30,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15278 to 11813. [2018-10-24 16:58:30,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11813 states. [2018-10-24 16:58:30,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11813 states to 11813 states and 13144 transitions. [2018-10-24 16:58:30,772 INFO L78 Accepts]: Start accepts. Automaton has 11813 states and 13144 transitions. Word has length 326 [2018-10-24 16:58:30,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:58:30,773 INFO L481 AbstractCegarLoop]: Abstraction has 11813 states and 13144 transitions. [2018-10-24 16:58:30,773 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 16:58:30,773 INFO L276 IsEmpty]: Start isEmpty. Operand 11813 states and 13144 transitions. [2018-10-24 16:58:30,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1028 [2018-10-24 16:58:30,807 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:58:30,808 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 16:58:30,809 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:58:30,809 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:58:30,809 INFO L82 PathProgramCache]: Analyzing trace with hash 1161902023, now seen corresponding path program 1 times [2018-10-24 16:58:30,810 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:58:30,810 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:58:30,811 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:58:30,811 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:58:30,811 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:58:30,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:58:32,465 INFO L134 CoverageAnalysis]: Checked inductivity of 887 backedges. 443 proven. 0 refuted. 0 times theorem prover too weak. 444 trivial. 0 not checked. [2018-10-24 16:58:32,466 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:58:32,466 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 16:58:32,467 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 16:58:32,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 16:58:32,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:58:32,468 INFO L87 Difference]: Start difference. First operand 11813 states and 13144 transitions. Second operand 4 states. [2018-10-24 16:58:38,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:58:38,403 INFO L93 Difference]: Finished difference Result 28476 states and 33059 transitions. [2018-10-24 16:58:38,404 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 16:58:38,405 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1027 [2018-10-24 16:58:38,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:58:38,441 INFO L225 Difference]: With dead ends: 28476 [2018-10-24 16:58:38,441 INFO L226 Difference]: Without dead ends: 17356 [2018-10-24 16:58:38,455 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 16:58:38,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17356 states. [2018-10-24 16:58:38,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17356 to 14577. [2018-10-24 16:58:38,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14577 states. [2018-10-24 16:58:38,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14577 states to 14577 states and 16291 transitions. [2018-10-24 16:58:38,648 INFO L78 Accepts]: Start accepts. Automaton has 14577 states and 16291 transitions. Word has length 1027 [2018-10-24 16:58:38,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:58:38,650 INFO L481 AbstractCegarLoop]: Abstraction has 14577 states and 16291 transitions. [2018-10-24 16:58:38,650 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 16:58:38,650 INFO L276 IsEmpty]: Start isEmpty. Operand 14577 states and 16291 transitions. [2018-10-24 16:58:38,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1042 [2018-10-24 16:58:38,686 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:58:38,687 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 16:58:38,687 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:58:38,687 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:58:38,688 INFO L82 PathProgramCache]: Analyzing trace with hash -2052979996, now seen corresponding path program 1 times [2018-10-24 16:58:38,688 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:58:38,688 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:58:38,689 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:58:38,689 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:58:38,689 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:58:38,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:58:39,725 WARN L179 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 12 [2018-10-24 16:58:40,313 INFO L134 CoverageAnalysis]: Checked inductivity of 928 backedges. 456 proven. 0 refuted. 0 times theorem prover too weak. 472 trivial. 0 not checked. [2018-10-24 16:58:40,313 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:58:40,313 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 16:58:40,315 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 16:58:40,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 16:58:40,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:58:40,315 INFO L87 Difference]: Start difference. First operand 14577 states and 16291 transitions. Second operand 4 states. [2018-10-24 16:58:48,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:58:48,822 INFO L93 Difference]: Finished difference Result 49882 states and 56668 transitions. [2018-10-24 16:58:48,823 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 16:58:48,823 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1041 [2018-10-24 16:58:48,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:58:48,883 INFO L225 Difference]: With dead ends: 49882 [2018-10-24 16:58:48,883 INFO L226 Difference]: Without dead ends: 35998 [2018-10-24 16:58:48,906 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:58:49,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35998 states. [2018-10-24 16:58:49,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35998 to 35307. [2018-10-24 16:58:49,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35307 states. [2018-10-24 16:58:49,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35307 states to 35307 states and 38772 transitions. [2018-10-24 16:58:49,473 INFO L78 Accepts]: Start accepts. Automaton has 35307 states and 38772 transitions. Word has length 1041 [2018-10-24 16:58:49,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:58:49,475 INFO L481 AbstractCegarLoop]: Abstraction has 35307 states and 38772 transitions. [2018-10-24 16:58:49,475 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 16:58:49,475 INFO L276 IsEmpty]: Start isEmpty. Operand 35307 states and 38772 transitions. [2018-10-24 16:58:49,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1169 [2018-10-24 16:58:49,498 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:58:49,500 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:49,500 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:58:49,500 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:58:49,500 INFO L82 PathProgramCache]: Analyzing trace with hash -257824427, now seen corresponding path program 1 times [2018-10-24 16:58:49,501 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:58:49,501 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:58:49,502 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:58:49,502 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:58:49,502 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:58:49,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:58:50,669 INFO L134 CoverageAnalysis]: Checked inductivity of 1169 backedges. 821 proven. 0 refuted. 0 times theorem prover too weak. 348 trivial. 0 not checked. [2018-10-24 16:58:50,670 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:58:50,670 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 16:58:50,671 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 16:58:50,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 16:58:50,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:58:50,671 INFO L87 Difference]: Start difference. First operand 35307 states and 38772 transitions. Second operand 4 states. [2018-10-24 16:58:55,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:58:55,772 INFO L93 Difference]: Finished difference Result 78904 states and 87225 transitions. [2018-10-24 16:58:55,777 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 16:58:55,777 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1168 [2018-10-24 16:58:55,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:58:55,849 INFO L225 Difference]: With dead ends: 78904 [2018-10-24 16:58:55,849 INFO L226 Difference]: Without dead ends: 44290 [2018-10-24 16:58:55,883 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:58:55,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44290 states. [2018-10-24 16:58:56,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44290 to 43599. [2018-10-24 16:58:56,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43599 states. [2018-10-24 16:58:56,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43599 states to 43599 states and 47211 transitions. [2018-10-24 16:58:56,340 INFO L78 Accepts]: Start accepts. Automaton has 43599 states and 47211 transitions. Word has length 1168 [2018-10-24 16:58:56,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:58:56,342 INFO L481 AbstractCegarLoop]: Abstraction has 43599 states and 47211 transitions. [2018-10-24 16:58:56,342 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 16:58:56,342 INFO L276 IsEmpty]: Start isEmpty. Operand 43599 states and 47211 transitions. [2018-10-24 16:58:56,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1183 [2018-10-24 16:58:56,372 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:58:56,373 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:56,373 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:58:56,373 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:58:56,374 INFO L82 PathProgramCache]: Analyzing trace with hash 1908385112, now seen corresponding path program 1 times [2018-10-24 16:58:56,374 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:58:56,374 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:58:56,375 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:58:56,375 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:58:56,375 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:58:56,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:58:58,356 INFO L134 CoverageAnalysis]: Checked inductivity of 1211 backedges. 199 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2018-10-24 16:58:58,356 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:58:58,356 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 16:58:58,357 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 16:58:58,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 16:58:58,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 16:58:58,358 INFO L87 Difference]: Start difference. First operand 43599 states and 47211 transitions. Second operand 3 states. [2018-10-24 16:59:01,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:59:01,788 INFO L93 Difference]: Finished difference Result 86505 states and 93728 transitions. [2018-10-24 16:59:01,789 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 16:59:01,789 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1182 [2018-10-24 16:59:01,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:59:01,854 INFO L225 Difference]: With dead ends: 86505 [2018-10-24 16:59:01,854 INFO L226 Difference]: Without dead ends: 43599 [2018-10-24 16:59:01,885 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 16:59:01,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43599 states. [2018-10-24 16:59:02,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43599 to 43599. [2018-10-24 16:59:02,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43599 states. [2018-10-24 16:59:02,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43599 states to 43599 states and 46514 transitions. [2018-10-24 16:59:02,381 INFO L78 Accepts]: Start accepts. Automaton has 43599 states and 46514 transitions. Word has length 1182 [2018-10-24 16:59:02,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:59:02,382 INFO L481 AbstractCegarLoop]: Abstraction has 43599 states and 46514 transitions. [2018-10-24 16:59:02,382 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 16:59:02,383 INFO L276 IsEmpty]: Start isEmpty. Operand 43599 states and 46514 transitions. [2018-10-24 16:59:02,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1271 [2018-10-24 16:59:02,416 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:59:02,417 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:59:02,418 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:59:02,418 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:59:02,418 INFO L82 PathProgramCache]: Analyzing trace with hash -50616559, now seen corresponding path program 1 times [2018-10-24 16:59:02,419 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:59:02,419 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:59:02,420 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:59:02,421 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:59:02,421 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:59:02,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:59:03,393 WARN L179 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-24 16:59:06,255 INFO L134 CoverageAnalysis]: Checked inductivity of 1628 backedges. 651 proven. 697 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2018-10-24 16:59:06,255 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 16:59:06,255 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 16:59:06,263 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:59:06,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:59:06,553 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 16:59:07,542 INFO L134 CoverageAnalysis]: Checked inductivity of 1628 backedges. 860 proven. 0 refuted. 0 times theorem prover too weak. 768 trivial. 0 not checked. [2018-10-24 16:59:07,564 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 16:59:07,564 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2018-10-24 16:59:07,566 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-24 16:59:07,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-24 16:59:07,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2018-10-24 16:59:07,568 INFO L87 Difference]: Start difference. First operand 43599 states and 46514 transitions. Second operand 10 states. [2018-10-24 16:59:30,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:59:30,022 INFO L93 Difference]: Finished difference Result 219947 states and 236540 transitions. [2018-10-24 16:59:30,022 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-10-24 16:59:30,022 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 1270 [2018-10-24 16:59:30,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:59:30,194 INFO L225 Difference]: With dead ends: 219947 [2018-10-24 16:59:30,194 INFO L226 Difference]: Without dead ends: 134595 [2018-10-24 16:59:30,247 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 1304 GetRequests, 1282 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=139, Invalid=367, Unknown=0, NotChecked=0, Total=506 [2018-10-24 16:59:30,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134595 states. [2018-10-24 16:59:31,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134595 to 54617. [2018-10-24 16:59:31,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54617 states. [2018-10-24 16:59:31,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54617 states to 54617 states and 56748 transitions. [2018-10-24 16:59:31,133 INFO L78 Accepts]: Start accepts. Automaton has 54617 states and 56748 transitions. Word has length 1270 [2018-10-24 16:59:31,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:59:31,134 INFO L481 AbstractCegarLoop]: Abstraction has 54617 states and 56748 transitions. [2018-10-24 16:59:31,134 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-24 16:59:31,134 INFO L276 IsEmpty]: Start isEmpty. Operand 54617 states and 56748 transitions. [2018-10-24 16:59:31,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1488 [2018-10-24 16:59:31,183 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:59:31,184 INFO L375 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 16:59:31,184 INFO L424 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:59:31,184 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:59:31,185 INFO L82 PathProgramCache]: Analyzing trace with hash 602726678, now seen corresponding path program 1 times [2018-10-24 16:59:31,185 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:59:31,185 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:59:31,186 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:59:31,186 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:59:31,186 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:59:31,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:59:32,784 INFO L134 CoverageAnalysis]: Checked inductivity of 2435 backedges. 1653 proven. 0 refuted. 0 times theorem prover too weak. 782 trivial. 0 not checked. [2018-10-24 16:59:32,784 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:59:32,785 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 16:59:32,785 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 16:59:32,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 16:59:32,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:59:32,786 INFO L87 Difference]: Start difference. First operand 54617 states and 56748 transitions. Second operand 4 states. [2018-10-24 16:59:37,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:59:37,424 INFO L93 Difference]: Finished difference Result 111305 states and 115775 transitions. [2018-10-24 16:59:37,425 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 16:59:37,425 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1487 [2018-10-24 16:59:37,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:59:37,549 INFO L225 Difference]: With dead ends: 111305 [2018-10-24 16:59:37,550 INFO L226 Difference]: Without dead ends: 57381 [2018-10-24 16:59:37,606 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 16:59:37,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57381 states. [2018-10-24 16:59:38,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57381 to 56690. [2018-10-24 16:59:38,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56690 states. [2018-10-24 16:59:38,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56690 states to 56690 states and 58535 transitions. [2018-10-24 16:59:38,209 INFO L78 Accepts]: Start accepts. Automaton has 56690 states and 58535 transitions. Word has length 1487 [2018-10-24 16:59:38,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:59:38,210 INFO L481 AbstractCegarLoop]: Abstraction has 56690 states and 58535 transitions. [2018-10-24 16:59:38,210 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 16:59:38,210 INFO L276 IsEmpty]: Start isEmpty. Operand 56690 states and 58535 transitions. [2018-10-24 16:59:38,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1541 [2018-10-24 16:59:38,250 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:59:38,251 INFO L375 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 16:59:38,252 INFO L424 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:59:38,252 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:59:38,253 INFO L82 PathProgramCache]: Analyzing trace with hash -1787651139, now seen corresponding path program 1 times [2018-10-24 16:59:38,253 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:59:38,253 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:59:38,254 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:59:38,254 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:59:38,254 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:59:38,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:59:39,863 WARN L179 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 20 [2018-10-24 16:59:44,302 INFO L134 CoverageAnalysis]: Checked inductivity of 2647 backedges. 1812 proven. 499 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2018-10-24 16:59:44,303 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 16:59:44,303 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 16:59:44,310 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:59:44,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:59:44,848 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 16:59:47,249 INFO L134 CoverageAnalysis]: Checked inductivity of 2647 backedges. 1091 proven. 0 refuted. 0 times theorem prover too weak. 1556 trivial. 0 not checked. [2018-10-24 16:59:47,270 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 16:59:47,270 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [11] total 12 [2018-10-24 16:59:47,272 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-10-24 16:59:47,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-10-24 16:59:47,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2018-10-24 16:59:47,273 INFO L87 Difference]: Start difference. First operand 56690 states and 58535 transitions. Second operand 13 states. [2018-10-24 17:00:05,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:00:05,324 INFO L93 Difference]: Finished difference Result 116683 states and 120418 transitions. [2018-10-24 17:00:05,324 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-10-24 17:00:05,324 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 1540 [2018-10-24 17:00:05,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:00:05,379 INFO L225 Difference]: With dead ends: 116683 [2018-10-24 17:00:05,380 INFO L226 Difference]: Without dead ends: 56532 [2018-10-24 17:00:05,408 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 1564 GetRequests, 1540 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=198, Invalid=452, Unknown=0, NotChecked=0, Total=650 [2018-10-24 17:00:05,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56532 states. [2018-10-24 17:00:05,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56532 to 52536. [2018-10-24 17:00:05,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52536 states. [2018-10-24 17:00:05,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52536 states to 52536 states and 54138 transitions. [2018-10-24 17:00:05,853 INFO L78 Accepts]: Start accepts. Automaton has 52536 states and 54138 transitions. Word has length 1540 [2018-10-24 17:00:05,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:00:05,854 INFO L481 AbstractCegarLoop]: Abstraction has 52536 states and 54138 transitions. [2018-10-24 17:00:05,854 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-10-24 17:00:05,854 INFO L276 IsEmpty]: Start isEmpty. Operand 52536 states and 54138 transitions. [2018-10-24 17:00:05,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1585 [2018-10-24 17:00:05,883 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:00:05,884 INFO L375 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 17:00:05,884 INFO L424 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:00:05,885 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:00:05,885 INFO L82 PathProgramCache]: Analyzing trace with hash -241003558, now seen corresponding path program 1 times [2018-10-24 17:00:05,885 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 17:00:05,885 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 17:00:05,886 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:00:05,886 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:00:05,886 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:00:06,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:00:08,358 INFO L134 CoverageAnalysis]: Checked inductivity of 2693 backedges. 1122 proven. 0 refuted. 0 times theorem prover too weak. 1571 trivial. 0 not checked. [2018-10-24 17:00:08,359 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 17:00:08,359 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 17:00:08,360 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 17:00:08,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 17:00:08,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 17:00:08,360 INFO L87 Difference]: Start difference. First operand 52536 states and 54138 transitions. Second operand 4 states. [2018-10-24 17:00:13,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:00:13,243 INFO L93 Difference]: Finished difference Result 114744 states and 118471 transitions. [2018-10-24 17:00:13,243 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 17:00:13,243 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1584 [2018-10-24 17:00:13,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:00:13,304 INFO L225 Difference]: With dead ends: 114744 [2018-10-24 17:00:13,304 INFO L226 Difference]: Without dead ends: 61518 [2018-10-24 17:00:13,334 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 17:00:13,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61518 states. [2018-10-24 17:00:13,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61518 to 60827. [2018-10-24 17:00:13,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60827 states. [2018-10-24 17:00:13,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60827 states to 60827 states and 62665 transitions. [2018-10-24 17:00:13,834 INFO L78 Accepts]: Start accepts. Automaton has 60827 states and 62665 transitions. Word has length 1584 [2018-10-24 17:00:13,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:00:13,835 INFO L481 AbstractCegarLoop]: Abstraction has 60827 states and 62665 transitions. [2018-10-24 17:00:13,835 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 17:00:13,835 INFO L276 IsEmpty]: Start isEmpty. Operand 60827 states and 62665 transitions. [2018-10-24 17:00:13,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1608 [2018-10-24 17:00:13,875 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:00:13,875 INFO L375 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:00:13,876 INFO L424 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:00:13,876 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:00:13,876 INFO L82 PathProgramCache]: Analyzing trace with hash 1986984168, now seen corresponding path program 1 times [2018-10-24 17:00:13,876 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 17:00:13,877 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 17:00:13,877 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:00:13,877 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:00:13,878 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:00:13,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:00:15,273 WARN L179 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 10 [2018-10-24 17:00:19,102 INFO L134 CoverageAnalysis]: Checked inductivity of 2516 backedges. 1504 proven. 894 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2018-10-24 17:00:19,103 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 17:00:19,103 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 17:00:19,112 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:00:19,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:00:19,462 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 17:00:20,386 INFO L134 CoverageAnalysis]: Checked inductivity of 2516 backedges. 1791 proven. 0 refuted. 0 times theorem prover too weak. 725 trivial. 0 not checked. [2018-10-24 17:00:20,409 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 17:00:20,409 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [11] total 12 [2018-10-24 17:00:20,411 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-24 17:00:20,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-24 17:00:20,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2018-10-24 17:00:20,412 INFO L87 Difference]: Start difference. First operand 60827 states and 62665 transitions. Second operand 12 states. [2018-10-24 17:00:35,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:00:35,899 INFO L93 Difference]: Finished difference Result 172940 states and 178609 transitions. [2018-10-24 17:00:35,899 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-10-24 17:00:35,899 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 1607 [2018-10-24 17:00:35,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:00:36,020 INFO L225 Difference]: With dead ends: 172940 [2018-10-24 17:00:36,020 INFO L226 Difference]: Without dead ends: 112806 [2018-10-24 17:00:36,059 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 1648 GetRequests, 1619 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=228, Invalid=584, Unknown=0, NotChecked=0, Total=812 [2018-10-24 17:00:36,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112806 states. [2018-10-24 17:00:36,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112806 to 80866. [2018-10-24 17:00:36,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80866 states. [2018-10-24 17:00:36,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80866 states to 80866 states and 83109 transitions. [2018-10-24 17:00:36,785 INFO L78 Accepts]: Start accepts. Automaton has 80866 states and 83109 transitions. Word has length 1607 [2018-10-24 17:00:36,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:00:36,786 INFO L481 AbstractCegarLoop]: Abstraction has 80866 states and 83109 transitions. [2018-10-24 17:00:36,787 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-24 17:00:36,787 INFO L276 IsEmpty]: Start isEmpty. Operand 80866 states and 83109 transitions. [2018-10-24 17:00:36,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1630 [2018-10-24 17:00:36,831 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:00:36,832 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:00:36,833 INFO L424 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:00:36,833 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:00:36,833 INFO L82 PathProgramCache]: Analyzing trace with hash 1719612221, now seen corresponding path program 1 times [2018-10-24 17:00:36,834 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 17:00:36,834 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 17:00:36,834 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:00:36,835 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:00:36,835 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:00:36,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:00:39,136 INFO L134 CoverageAnalysis]: Checked inductivity of 2729 backedges. 2114 proven. 0 refuted. 0 times theorem prover too weak. 615 trivial. 0 not checked. [2018-10-24 17:00:39,136 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 17:00:39,136 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 17:00:39,137 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 17:00:39,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 17:00:39,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 17:00:39,138 INFO L87 Difference]: Start difference. First operand 80866 states and 83109 transitions. Second operand 4 states. [2018-10-24 17:00:43,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:00:43,374 INFO L93 Difference]: Finished difference Result 161730 states and 166217 transitions. [2018-10-24 17:00:43,374 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 17:00:43,374 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1629 [2018-10-24 17:00:43,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:00:43,475 INFO L225 Difference]: With dead ends: 161730 [2018-10-24 17:00:43,475 INFO L226 Difference]: Without dead ends: 80864 [2018-10-24 17:00:43,521 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 17:00:43,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80864 states. [2018-10-24 17:00:44,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80864 to 79482. [2018-10-24 17:00:44,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79482 states. [2018-10-24 17:00:44,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79482 states to 79482 states and 81357 transitions. [2018-10-24 17:00:44,209 INFO L78 Accepts]: Start accepts. Automaton has 79482 states and 81357 transitions. Word has length 1629 [2018-10-24 17:00:44,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:00:44,210 INFO L481 AbstractCegarLoop]: Abstraction has 79482 states and 81357 transitions. [2018-10-24 17:00:44,210 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 17:00:44,210 INFO L276 IsEmpty]: Start isEmpty. Operand 79482 states and 81357 transitions. [2018-10-24 17:00:44,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1665 [2018-10-24 17:00:44,245 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:00:44,246 INFO L375 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 17:00:44,246 INFO L424 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:00:44,246 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:00:44,246 INFO L82 PathProgramCache]: Analyzing trace with hash -92686596, now seen corresponding path program 1 times [2018-10-24 17:00:44,247 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 17:00:44,247 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 17:00:44,247 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:00:44,247 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:00:44,247 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:00:44,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:00:46,617 INFO L134 CoverageAnalysis]: Checked inductivity of 2815 backedges. 2033 proven. 0 refuted. 0 times theorem prover too weak. 782 trivial. 0 not checked. [2018-10-24 17:00:46,618 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 17:00:46,618 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 17:00:46,619 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 17:00:46,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 17:00:46,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 17:00:46,619 INFO L87 Difference]: Start difference. First operand 79482 states and 81357 transitions. Second operand 3 states. [2018-10-24 17:00:49,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:00:49,408 INFO L93 Difference]: Finished difference Result 159653 states and 163416 transitions. [2018-10-24 17:00:49,408 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 17:00:49,409 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1664 [2018-10-24 17:00:49,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:00:49,484 INFO L225 Difference]: With dead ends: 159653 [2018-10-24 17:00:49,484 INFO L226 Difference]: Without dead ends: 80864 [2018-10-24 17:00:49,524 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 17:00:49,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80864 states. [2018-10-24 17:00:50,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80864 to 80173. [2018-10-24 17:00:50,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80173 states. [2018-10-24 17:00:50,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80173 states to 80173 states and 82056 transitions. [2018-10-24 17:00:50,504 INFO L78 Accepts]: Start accepts. Automaton has 80173 states and 82056 transitions. Word has length 1664 [2018-10-24 17:00:50,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:00:50,505 INFO L481 AbstractCegarLoop]: Abstraction has 80173 states and 82056 transitions. [2018-10-24 17:00:50,505 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 17:00:50,505 INFO L276 IsEmpty]: Start isEmpty. Operand 80173 states and 82056 transitions. [2018-10-24 17:00:50,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1684 [2018-10-24 17:00:50,544 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:00:50,545 INFO L375 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 17:00:50,545 INFO L424 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:00:50,546 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:00:50,546 INFO L82 PathProgramCache]: Analyzing trace with hash -296043155, now seen corresponding path program 1 times [2018-10-24 17:00:50,546 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 17:00:50,546 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 17:00:50,547 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:00:50,547 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:00:50,547 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:00:50,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:00:55,247 INFO L134 CoverageAnalysis]: Checked inductivity of 3059 backedges. 1453 proven. 1350 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2018-10-24 17:00:55,247 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 17:00:55,247 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 17:00:55,255 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:00:55,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:00:55,609 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 17:00:57,289 INFO L134 CoverageAnalysis]: Checked inductivity of 3059 backedges. 2057 proven. 0 refuted. 0 times theorem prover too weak. 1002 trivial. 0 not checked. [2018-10-24 17:00:57,311 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 17:00:57,312 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [11] total 12 [2018-10-24 17:00:57,314 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-24 17:00:57,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-24 17:00:57,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-10-24 17:00:57,314 INFO L87 Difference]: Start difference. First operand 80173 states and 82056 transitions. Second operand 12 states. [2018-10-24 17:01:11,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:01:11,441 INFO L93 Difference]: Finished difference Result 190790 states and 195262 transitions. [2018-10-24 17:01:11,441 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-10-24 17:01:11,442 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 1683 [2018-10-24 17:01:11,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:01:11,563 INFO L225 Difference]: With dead ends: 190790 [2018-10-24 17:01:11,563 INFO L226 Difference]: Without dead ends: 111310 [2018-10-24 17:01:11,610 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 1721 GetRequests, 1694 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=187, Invalid=515, Unknown=0, NotChecked=0, Total=702 [2018-10-24 17:01:11,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111310 states. [2018-10-24 17:01:12,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111310 to 78791. [2018-10-24 17:01:12,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78791 states. [2018-10-24 17:01:12,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78791 states to 78791 states and 80144 transitions. [2018-10-24 17:01:12,452 INFO L78 Accepts]: Start accepts. Automaton has 78791 states and 80144 transitions. Word has length 1683 [2018-10-24 17:01:12,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:01:12,453 INFO L481 AbstractCegarLoop]: Abstraction has 78791 states and 80144 transitions. [2018-10-24 17:01:12,453 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-24 17:01:12,453 INFO L276 IsEmpty]: Start isEmpty. Operand 78791 states and 80144 transitions. [2018-10-24 17:01:12,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1763 [2018-10-24 17:01:12,495 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:01:12,495 INFO L375 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:01:12,496 INFO L424 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:01:12,496 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:01:12,496 INFO L82 PathProgramCache]: Analyzing trace with hash -1114176638, now seen corresponding path program 1 times [2018-10-24 17:01:12,496 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 17:01:12,496 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 17:01:12,497 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:01:12,497 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:01:12,497 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:01:12,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:01:15,805 INFO L134 CoverageAnalysis]: Checked inductivity of 3471 backedges. 2334 proven. 559 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2018-10-24 17:01:15,805 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 17:01:15,805 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 17:01:15,813 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:01:16,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:01:16,188 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 17:01:17,439 WARN L179 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-10-24 17:01:18,243 WARN L179 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 615 DAG size of output: 29 Received shutdown request... [2018-10-24 17:01:30,088 INFO L134 CoverageAnalysis]: Checked inductivity of 3471 backedges. 1234 proven. 1659 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2018-10-24 17:01:30,109 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-24 17:01:30,109 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 12 [2018-10-24 17:01:30,111 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-24 17:01:30,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-24 17:01:30,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2018-10-24 17:01:30,112 INFO L87 Difference]: Start difference. First operand 78791 states and 80144 transitions. Second operand 12 states. [2018-10-24 17:01:30,112 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-24 17:01:30,113 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 17:01:30,119 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 17:01:30,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 05:01:30 BoogieIcfgContainer [2018-10-24 17:01:30,119 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 17:01:30,120 INFO L168 Benchmark]: Toolchain (without parser) took 234751.28 ms. Allocated memory was 1.5 GB in the beginning and 4.0 GB in the end (delta: 2.4 GB). Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 50.8 MB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. [2018-10-24 17:01:30,121 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 17:01:30,122 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1595.46 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. [2018-10-24 17:01:30,123 INFO L168 Benchmark]: Boogie Procedure Inliner took 515.71 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 743.4 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -902.7 MB). Peak memory consumption was 45.0 MB. Max. memory is 7.1 GB. [2018-10-24 17:01:30,124 INFO L168 Benchmark]: Boogie Preprocessor took 291.98 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 29.6 MB). Peak memory consumption was 29.6 MB. Max. memory is 7.1 GB. [2018-10-24 17:01:30,124 INFO L168 Benchmark]: RCFGBuilder took 6813.48 ms. Allocated memory is still 2.3 GB. Free memory was 2.1 GB in the beginning and 1.6 GB in the end (delta: 533.6 MB). Peak memory consumption was 533.6 MB. Max. memory is 7.1 GB. [2018-10-24 17:01:30,125 INFO L168 Benchmark]: TraceAbstraction took 225524.83 ms. Allocated memory was 2.3 GB in the beginning and 4.0 GB in the end (delta: 1.7 GB). Free memory was 1.6 GB in the beginning and 1.4 GB in the end (delta: 242.3 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2018-10-24 17:01:30,130 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1595.46 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 515.71 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 743.4 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -902.7 MB). Peak memory consumption was 45.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 291.98 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 29.6 MB). Peak memory consumption was 29.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 6813.48 ms. Allocated memory is still 2.3 GB. Free memory was 2.1 GB in the beginning and 1.6 GB in the end (delta: 533.6 MB). Peak memory consumption was 533.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 225524.83 ms. Allocated memory was 2.3 GB in the beginning and 4.0 GB in the end (delta: 1.7 GB). Free memory was 1.6 GB in the beginning and 1.4 GB in the end (delta: 242.3 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 162]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 162). Cancelled while BasicCegarLoop was constructing difference of abstraction (78791states) and FLOYD_HOARE automaton (currently 2 states, 12 states before enhancement),while ReachableStatesComputation was computing reachable states (1 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 758 locations, 1 error locations. TIMEOUT Result, 225.4s OverallTime, 17 OverallIterations, 8 TraceHistogramMax, 153.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 8924 SDtfs, 60085 SDslu, 2427 SDs, 0 SdLazy, 106368 SolverSat, 15490 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 119.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8690 GetRequests, 8539 SyntacticMatches, 16 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 565 ImplicationChecksByTransitivity, 8.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=80866occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 8.0s AutomataMinimizationTime, 16 MinimizatonAttempts, 162985 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 1.0s SsaConstructionTime, 2.7s SatisfiabilityAnalysisTime, 34.5s InterpolantComputationTime, 28030 NumberOfCodeBlocks, 28030 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 28006 ConstructedInterpolants, 754 QuantifiedInterpolants, 171693808 SizeOfPredicates, 5 NumberOfNonLiveVariables, 9726 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 24 InterpolantComputations, 16 PerfectInterpolantSequences, 36719/42385 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown