java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem13_label40_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 14:11:34,473 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 14:11:34,476 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 14:11:34,492 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 14:11:34,492 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 14:11:34,493 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 14:11:34,495 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 14:11:34,498 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 14:11:34,500 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 14:11:34,501 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 14:11:34,510 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 14:11:34,510 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 14:11:34,511 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 14:11:34,512 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 14:11:34,516 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 14:11:34,516 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 14:11:34,519 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 14:11:34,522 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 14:11:34,526 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 14:11:34,531 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 14:11:34,532 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 14:11:34,534 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 14:11:34,538 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 14:11:34,538 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 14:11:34,540 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 14:11:34,541 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 14:11:34,542 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 14:11:34,543 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 14:11:34,543 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 14:11:34,546 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 14:11:34,548 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 14:11:34,549 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-24 14:11:34,551 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 14:11:34,565 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 14:11:34,565 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 14:11:34,566 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 14:11:34,566 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-24 14:11:34,567 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-24 14:11:34,567 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-24 14:11:34,567 INFO L133 SettingsManager]: * Use SBE=true [2018-10-24 14:11:34,567 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 14:11:34,568 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 14:11:34,568 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 14:11:34,568 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 14:11:34,568 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 14:11:34,568 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 14:11:34,569 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 14:11:34,569 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 14:11:34,569 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 14:11:34,569 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 14:11:34,569 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 14:11:34,570 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 14:11:34,572 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 14:11:34,572 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 14:11:34,572 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 14:11:34,573 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 14:11:34,573 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-24 14:11:34,573 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 14:11:34,573 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 14:11:34,573 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 14:11:34,574 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 14:11:34,634 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 14:11:34,650 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 14:11:34,654 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 14:11:34,656 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 14:11:34,656 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 14:11:34,657 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label40_false-unreach-call.c [2018-10-24 14:11:34,714 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/0607f6c80/0837bf50460a4af2a4ca14202094a5c2/FLAG5c60e577f [2018-10-24 14:11:35,547 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 14:11:35,548 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label40_false-unreach-call.c [2018-10-24 14:11:35,580 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/0607f6c80/0837bf50460a4af2a4ca14202094a5c2/FLAG5c60e577f [2018-10-24 14:11:35,597 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/0607f6c80/0837bf50460a4af2a4ca14202094a5c2 [2018-10-24 14:11:35,608 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 14:11:35,610 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 14:11:35,611 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 14:11:35,611 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 14:11:35,615 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 14:11:35,616 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:11:35" (1/1) ... [2018-10-24 14:11:35,619 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5aa64f5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:11:35, skipping insertion in model container [2018-10-24 14:11:35,620 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:11:35" (1/1) ... [2018-10-24 14:11:35,631 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 14:11:35,825 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 14:11:37,452 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 14:11:37,459 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 14:11:38,158 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 14:11:38,196 INFO L193 MainTranslator]: Completed translation [2018-10-24 14:11:38,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:11:38 WrapperNode [2018-10-24 14:11:38,197 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 14:11:38,198 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 14:11:38,198 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 14:11:38,198 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 14:11:38,210 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:11:38" (1/1) ... [2018-10-24 14:11:38,301 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:11:38" (1/1) ... [2018-10-24 14:11:39,080 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 14:11:39,081 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 14:11:39,081 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 14:11:39,081 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 14:11:39,094 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:11:38" (1/1) ... [2018-10-24 14:11:39,094 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:11:38" (1/1) ... [2018-10-24 14:11:39,148 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:11:38" (1/1) ... [2018-10-24 14:11:39,148 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:11:38" (1/1) ... [2018-10-24 14:11:39,330 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:11:38" (1/1) ... [2018-10-24 14:11:39,378 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:11:38" (1/1) ... [2018-10-24 14:11:39,456 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:11:38" (1/1) ... [2018-10-24 14:11:39,528 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 14:11:39,528 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 14:11:39,529 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 14:11:39,529 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 14:11:39,530 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:11:38" (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 14:11:39,602 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-24 14:11:39,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 14:11:39,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 14:11:53,160 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 14:11:53,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:11:53 BoogieIcfgContainer [2018-10-24 14:11:53,162 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 14:11:53,163 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 14:11:53,163 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 14:11:53,166 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 14:11:53,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:11:35" (1/3) ... [2018-10-24 14:11:53,168 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fabc076 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:11:53, skipping insertion in model container [2018-10-24 14:11:53,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:11:38" (2/3) ... [2018-10-24 14:11:53,168 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fabc076 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:11:53, skipping insertion in model container [2018-10-24 14:11:53,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:11:53" (3/3) ... [2018-10-24 14:11:53,171 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label40_false-unreach-call.c [2018-10-24 14:11:53,182 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 14:11:53,193 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 14:11:53,212 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 14:11:53,257 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-24 14:11:53,258 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 14:11:53,258 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 14:11:53,259 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 14:11:53,259 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 14:11:53,259 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 14:11:53,259 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 14:11:53,259 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 14:11:53,259 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 14:11:53,307 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states. [2018-10-24 14:11:53,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-10-24 14:11:53,322 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:11:53,323 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] [2018-10-24 14:11:53,328 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:11:53,333 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:11:53,334 INFO L82 PathProgramCache]: Analyzing trace with hash 1827210562, now seen corresponding path program 1 times [2018-10-24 14:11:53,336 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:11:53,337 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:11:53,399 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:11:53,399 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:11:53,399 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:11:53,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:11:53,801 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 14:11:53,804 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:11:53,805 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:11:53,810 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:11:53,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:11:53,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:11:53,830 INFO L87 Difference]: Start difference. First operand 1099 states. Second operand 4 states. [2018-10-24 14:12:09,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:12:09,453 INFO L93 Difference]: Finished difference Result 3973 states and 7416 transitions. [2018-10-24 14:12:09,453 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:12:09,455 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2018-10-24 14:12:09,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:12:09,503 INFO L225 Difference]: With dead ends: 3973 [2018-10-24 14:12:09,503 INFO L226 Difference]: Without dead ends: 2867 [2018-10-24 14:12:09,511 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:12:09,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2867 states. [2018-10-24 14:12:09,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2867 to 1938. [2018-10-24 14:12:09,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1938 states. [2018-10-24 14:12:09,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1938 states to 1938 states and 3240 transitions. [2018-10-24 14:12:09,680 INFO L78 Accepts]: Start accepts. Automaton has 1938 states and 3240 transitions. Word has length 29 [2018-10-24 14:12:09,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:12:09,682 INFO L481 AbstractCegarLoop]: Abstraction has 1938 states and 3240 transitions. [2018-10-24 14:12:09,682 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:12:09,682 INFO L276 IsEmpty]: Start isEmpty. Operand 1938 states and 3240 transitions. [2018-10-24 14:12:09,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2018-10-24 14:12:09,688 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:12:09,690 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:12:09,690 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:12:09,691 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:12:09,691 INFO L82 PathProgramCache]: Analyzing trace with hash -495686712, now seen corresponding path program 1 times [2018-10-24 14:12:09,691 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:12:09,691 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:12:09,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:12:09,693 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:12:09,694 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:12:09,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:12:10,006 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:12:10,006 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:12:10,007 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:12:10,008 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:12:10,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:12:10,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:12:10,009 INFO L87 Difference]: Start difference. First operand 1938 states and 3240 transitions. Second operand 4 states. [2018-10-24 14:12:26,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:12:26,225 INFO L93 Difference]: Finished difference Result 7101 states and 12101 transitions. [2018-10-24 14:12:26,225 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:12:26,226 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 101 [2018-10-24 14:12:26,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:12:26,255 INFO L225 Difference]: With dead ends: 7101 [2018-10-24 14:12:26,256 INFO L226 Difference]: Without dead ends: 5165 [2018-10-24 14:12:26,261 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:12:26,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5165 states. [2018-10-24 14:12:26,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5165 to 3540. [2018-10-24 14:12:26,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3540 states. [2018-10-24 14:12:26,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3540 states to 3540 states and 5445 transitions. [2018-10-24 14:12:26,345 INFO L78 Accepts]: Start accepts. Automaton has 3540 states and 5445 transitions. Word has length 101 [2018-10-24 14:12:26,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:12:26,346 INFO L481 AbstractCegarLoop]: Abstraction has 3540 states and 5445 transitions. [2018-10-24 14:12:26,346 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:12:26,346 INFO L276 IsEmpty]: Start isEmpty. Operand 3540 states and 5445 transitions. [2018-10-24 14:12:26,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2018-10-24 14:12:26,350 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:12:26,351 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:12:26,351 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:12:26,351 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:12:26,351 INFO L82 PathProgramCache]: Analyzing trace with hash -57072693, now seen corresponding path program 1 times [2018-10-24 14:12:26,352 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:12:26,352 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:12:26,353 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:12:26,353 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:12:26,353 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:12:26,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:12:26,668 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:12:26,669 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:12:26,669 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:12:26,669 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:12:26,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:12:26,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:12:26,670 INFO L87 Difference]: Start difference. First operand 3540 states and 5445 transitions. Second operand 4 states. [2018-10-24 14:12:45,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:12:45,771 INFO L93 Difference]: Finished difference Result 13555 states and 21081 transitions. [2018-10-24 14:12:45,772 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:12:45,772 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 115 [2018-10-24 14:12:45,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:12:45,824 INFO L225 Difference]: With dead ends: 13555 [2018-10-24 14:12:45,824 INFO L226 Difference]: Without dead ends: 10017 [2018-10-24 14:12:45,833 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:12:45,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10017 states. [2018-10-24 14:12:45,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10017 to 6718. [2018-10-24 14:12:45,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6718 states. [2018-10-24 14:12:45,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6718 states to 6718 states and 9885 transitions. [2018-10-24 14:12:45,984 INFO L78 Accepts]: Start accepts. Automaton has 6718 states and 9885 transitions. Word has length 115 [2018-10-24 14:12:45,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:12:45,985 INFO L481 AbstractCegarLoop]: Abstraction has 6718 states and 9885 transitions. [2018-10-24 14:12:45,985 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:12:45,985 INFO L276 IsEmpty]: Start isEmpty. Operand 6718 states and 9885 transitions. [2018-10-24 14:12:45,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2018-10-24 14:12:45,988 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:12:45,989 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:12:45,989 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:12:45,989 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:12:45,990 INFO L82 PathProgramCache]: Analyzing trace with hash -429054184, now seen corresponding path program 1 times [2018-10-24 14:12:45,990 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:12:45,990 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:12:45,991 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:12:45,991 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:12:45,991 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:12:46,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:12:46,326 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:12:46,326 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:12:46,326 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:12:46,327 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:12:46,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:12:46,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:12:46,328 INFO L87 Difference]: Start difference. First operand 6718 states and 9885 transitions. Second operand 4 states. [2018-10-24 14:13:02,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:13:02,011 INFO L93 Difference]: Finished difference Result 23855 states and 35012 transitions. [2018-10-24 14:13:02,011 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:13:02,012 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 133 [2018-10-24 14:13:02,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:13:02,072 INFO L225 Difference]: With dead ends: 23855 [2018-10-24 14:13:02,072 INFO L226 Difference]: Without dead ends: 17139 [2018-10-24 14:13:02,087 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:13:02,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17139 states. [2018-10-24 14:13:02,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17139 to 13037. [2018-10-24 14:13:02,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13037 states. [2018-10-24 14:13:02,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13037 states to 13037 states and 18976 transitions. [2018-10-24 14:13:02,379 INFO L78 Accepts]: Start accepts. Automaton has 13037 states and 18976 transitions. Word has length 133 [2018-10-24 14:13:02,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:13:02,380 INFO L481 AbstractCegarLoop]: Abstraction has 13037 states and 18976 transitions. [2018-10-24 14:13:02,380 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:13:02,380 INFO L276 IsEmpty]: Start isEmpty. Operand 13037 states and 18976 transitions. [2018-10-24 14:13:02,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2018-10-24 14:13:02,384 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:13:02,385 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:13:02,385 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:13:02,385 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:13:02,385 INFO L82 PathProgramCache]: Analyzing trace with hash -842540244, now seen corresponding path program 1 times [2018-10-24 14:13:02,386 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:13:02,386 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:13:02,387 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:13:02,387 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:13:02,387 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:13:02,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:13:02,995 WARN L179 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 9 [2018-10-24 14:13:03,362 WARN L179 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 9 [2018-10-24 14:13:03,570 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:13:03,570 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:13:03,570 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 14:13:03,571 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 14:13:03,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 14:13:03,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-10-24 14:13:03,572 INFO L87 Difference]: Start difference. First operand 13037 states and 18976 transitions. Second operand 6 states. [2018-10-24 14:13:21,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:13:21,472 INFO L93 Difference]: Finished difference Result 41152 states and 59128 transitions. [2018-10-24 14:13:21,474 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-24 14:13:21,474 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 141 [2018-10-24 14:13:21,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:13:21,532 INFO L225 Difference]: With dead ends: 41152 [2018-10-24 14:13:21,532 INFO L226 Difference]: Without dead ends: 28117 [2018-10-24 14:13:21,548 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-10-24 14:13:21,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28117 states. [2018-10-24 14:13:21,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28117 to 27247. [2018-10-24 14:13:21,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27247 states. [2018-10-24 14:13:21,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27247 states to 27247 states and 35783 transitions. [2018-10-24 14:13:21,942 INFO L78 Accepts]: Start accepts. Automaton has 27247 states and 35783 transitions. Word has length 141 [2018-10-24 14:13:21,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:13:21,942 INFO L481 AbstractCegarLoop]: Abstraction has 27247 states and 35783 transitions. [2018-10-24 14:13:21,943 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 14:13:21,943 INFO L276 IsEmpty]: Start isEmpty. Operand 27247 states and 35783 transitions. [2018-10-24 14:13:21,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2018-10-24 14:13:21,947 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:13:21,947 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:13:21,948 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:13:21,948 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:13:21,948 INFO L82 PathProgramCache]: Analyzing trace with hash 517549558, now seen corresponding path program 1 times [2018-10-24 14:13:21,948 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:13:21,948 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:13:21,952 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:13:21,952 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:13:21,952 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:13:21,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:13:22,349 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:13:22,349 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:13:22,349 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:13:22,350 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 14:13:22,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 14:13:22,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:13:22,350 INFO L87 Difference]: Start difference. First operand 27247 states and 35783 transitions. Second operand 5 states. [2018-10-24 14:13:41,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:13:41,390 INFO L93 Difference]: Finished difference Result 68927 states and 90707 transitions. [2018-10-24 14:13:41,390 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 14:13:41,390 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 155 [2018-10-24 14:13:41,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:13:41,483 INFO L225 Difference]: With dead ends: 68927 [2018-10-24 14:13:41,484 INFO L226 Difference]: Without dead ends: 41681 [2018-10-24 14:13:41,520 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:13:41,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41681 states. [2018-10-24 14:13:42,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41681 to 39901. [2018-10-24 14:13:42,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39901 states. [2018-10-24 14:13:42,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39901 states to 39901 states and 51942 transitions. [2018-10-24 14:13:42,139 INFO L78 Accepts]: Start accepts. Automaton has 39901 states and 51942 transitions. Word has length 155 [2018-10-24 14:13:42,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:13:42,140 INFO L481 AbstractCegarLoop]: Abstraction has 39901 states and 51942 transitions. [2018-10-24 14:13:42,140 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 14:13:42,140 INFO L276 IsEmpty]: Start isEmpty. Operand 39901 states and 51942 transitions. [2018-10-24 14:13:42,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2018-10-24 14:13:42,145 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:13:42,145 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 14:13:42,145 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:13:42,146 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:13:42,146 INFO L82 PathProgramCache]: Analyzing trace with hash 1153759498, now seen corresponding path program 1 times [2018-10-24 14:13:42,146 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:13:42,146 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:13:42,147 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:13:42,147 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:13:42,147 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:13:42,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:13:42,600 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 138 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:13:42,600 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:13:42,600 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:13:42,601 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 14:13:42,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 14:13:42,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:13:42,602 INFO L87 Difference]: Start difference. First operand 39901 states and 51942 transitions. Second operand 5 states. [2018-10-24 14:14:01,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:14:01,886 INFO L93 Difference]: Finished difference Result 109286 states and 144564 transitions. [2018-10-24 14:14:01,886 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 14:14:01,886 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 212 [2018-10-24 14:14:01,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:14:02,025 INFO L225 Difference]: With dead ends: 109286 [2018-10-24 14:14:02,025 INFO L226 Difference]: Without dead ends: 69387 [2018-10-24 14:14:02,066 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:14:02,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69387 states. [2018-10-24 14:14:02,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69387 to 69181. [2018-10-24 14:14:02,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69181 states. [2018-10-24 14:14:03,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69181 states to 69181 states and 89260 transitions. [2018-10-24 14:14:03,026 INFO L78 Accepts]: Start accepts. Automaton has 69181 states and 89260 transitions. Word has length 212 [2018-10-24 14:14:03,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:14:03,027 INFO L481 AbstractCegarLoop]: Abstraction has 69181 states and 89260 transitions. [2018-10-24 14:14:03,027 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 14:14:03,027 INFO L276 IsEmpty]: Start isEmpty. Operand 69181 states and 89260 transitions. [2018-10-24 14:14:03,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2018-10-24 14:14:03,035 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:14:03,035 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 14:14:03,036 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:14:03,036 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:14:03,036 INFO L82 PathProgramCache]: Analyzing trace with hash -227015565, now seen corresponding path program 1 times [2018-10-24 14:14:03,037 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:14:03,037 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:14:03,038 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:14:03,038 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:14:03,038 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:14:03,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:14:03,432 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 53 proven. 4 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2018-10-24 14:14:03,433 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:14:03,433 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 14:14:03,450 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:14:03,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:14:03,555 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:14:03,652 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 149 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:14:03,687 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 14:14:03,687 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2018-10-24 14:14:03,688 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:14:03,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:14:03,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:14:03,689 INFO L87 Difference]: Start difference. First operand 69181 states and 89260 transitions. Second operand 4 states. [2018-10-24 14:14:14,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:14:14,992 INFO L93 Difference]: Finished difference Result 210129 states and 273009 transitions. [2018-10-24 14:14:14,993 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:14:14,993 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 241 [2018-10-24 14:14:14,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:14:15,245 INFO L225 Difference]: With dead ends: 210129 [2018-10-24 14:14:15,245 INFO L226 Difference]: Without dead ends: 140950 [2018-10-24 14:14:15,325 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 241 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:14:15,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140950 states. [2018-10-24 14:14:16,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140950 to 114094. [2018-10-24 14:14:16,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114094 states. [2018-10-24 14:14:18,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114094 states to 114094 states and 143186 transitions. [2018-10-24 14:14:18,151 INFO L78 Accepts]: Start accepts. Automaton has 114094 states and 143186 transitions. Word has length 241 [2018-10-24 14:14:18,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:14:18,152 INFO L481 AbstractCegarLoop]: Abstraction has 114094 states and 143186 transitions. [2018-10-24 14:14:18,152 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:14:18,152 INFO L276 IsEmpty]: Start isEmpty. Operand 114094 states and 143186 transitions. [2018-10-24 14:14:18,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2018-10-24 14:14:18,158 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:14:18,158 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:14:18,158 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:14:18,159 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:14:18,159 INFO L82 PathProgramCache]: Analyzing trace with hash 355724236, now seen corresponding path program 1 times [2018-10-24 14:14:18,159 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:14:18,159 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:14:18,160 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:14:18,161 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:14:18,161 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:14:18,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:14:18,405 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:14:18,405 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:14:18,406 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:14:18,406 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 14:14:18,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 14:14:18,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:14:18,407 INFO L87 Difference]: Start difference. First operand 114094 states and 143186 transitions. Second operand 3 states. [2018-10-24 14:14:25,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:14:25,988 INFO L93 Difference]: Finished difference Result 226583 states and 284562 transitions. [2018-10-24 14:14:25,989 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 14:14:25,989 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 259 [2018-10-24 14:14:25,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:14:26,131 INFO L225 Difference]: With dead ends: 226583 [2018-10-24 14:14:26,131 INFO L226 Difference]: Without dead ends: 113279 [2018-10-24 14:14:26,205 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 14:14:26,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113279 states. [2018-10-24 14:14:27,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113279 to 112482. [2018-10-24 14:14:27,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112482 states. [2018-10-24 14:14:27,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112482 states to 112482 states and 132065 transitions. [2018-10-24 14:14:27,353 INFO L78 Accepts]: Start accepts. Automaton has 112482 states and 132065 transitions. Word has length 259 [2018-10-24 14:14:27,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:14:27,354 INFO L481 AbstractCegarLoop]: Abstraction has 112482 states and 132065 transitions. [2018-10-24 14:14:27,354 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 14:14:27,354 INFO L276 IsEmpty]: Start isEmpty. Operand 112482 states and 132065 transitions. [2018-10-24 14:14:27,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2018-10-24 14:14:27,359 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:14:27,360 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 14:14:27,360 INFO L424 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:14:27,360 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:14:27,361 INFO L82 PathProgramCache]: Analyzing trace with hash -1643534312, now seen corresponding path program 1 times [2018-10-24 14:14:27,361 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:14:27,361 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:14:27,362 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:14:27,362 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:14:27,362 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:14:27,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:14:28,568 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 149 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:14:28,568 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:14:28,568 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:14:28,569 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:14:28,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:14:28,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:14:28,570 INFO L87 Difference]: Start difference. First operand 112482 states and 132065 transitions. Second operand 4 states. [2018-10-24 14:14:41,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:14:41,758 INFO L93 Difference]: Finished difference Result 314053 states and 368026 transitions. [2018-10-24 14:14:41,758 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:14:41,758 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 269 [2018-10-24 14:14:41,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:14:42,002 INFO L225 Difference]: With dead ends: 314053 [2018-10-24 14:14:42,003 INFO L226 Difference]: Without dead ends: 202359 [2018-10-24 14:14:42,086 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 14:14:42,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202359 states. [2018-10-24 14:14:44,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202359 to 199147. [2018-10-24 14:14:44,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 199147 states. [2018-10-24 14:14:45,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199147 states to 199147 states and 224592 transitions. [2018-10-24 14:14:45,001 INFO L78 Accepts]: Start accepts. Automaton has 199147 states and 224592 transitions. Word has length 269 [2018-10-24 14:14:45,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:14:45,001 INFO L481 AbstractCegarLoop]: Abstraction has 199147 states and 224592 transitions. [2018-10-24 14:14:45,001 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:14:45,002 INFO L276 IsEmpty]: Start isEmpty. Operand 199147 states and 224592 transitions. [2018-10-24 14:14:45,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2018-10-24 14:14:45,011 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:14:45,011 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 14:14:45,012 INFO L424 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:14:45,012 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:14:45,012 INFO L82 PathProgramCache]: Analyzing trace with hash 1285746636, now seen corresponding path program 1 times [2018-10-24 14:14:45,012 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:14:45,012 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:14:45,014 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:14:45,015 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:14:45,015 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:14:45,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:14:45,316 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2018-10-24 14:14:45,316 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:14:45,317 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:14:45,317 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:14:45,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:14:45,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:14:45,318 INFO L87 Difference]: Start difference. First operand 199147 states and 224592 transitions. Second operand 4 states. [2018-10-24 14:14:57,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:14:57,402 INFO L93 Difference]: Finished difference Result 492823 states and 556216 transitions. [2018-10-24 14:14:57,403 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:14:57,403 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 309 [2018-10-24 14:14:57,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:14:57,719 INFO L225 Difference]: With dead ends: 492823 [2018-10-24 14:14:57,719 INFO L226 Difference]: Without dead ends: 281837 [2018-10-24 14:14:57,815 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:14:58,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281837 states. [2018-10-24 14:15:01,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281837 to 260535. [2018-10-24 14:15:01,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 260535 states. [2018-10-24 14:15:01,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260535 states to 260535 states and 284186 transitions. [2018-10-24 14:15:01,599 INFO L78 Accepts]: Start accepts. Automaton has 260535 states and 284186 transitions. Word has length 309 [2018-10-24 14:15:01,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:15:01,599 INFO L481 AbstractCegarLoop]: Abstraction has 260535 states and 284186 transitions. [2018-10-24 14:15:01,599 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:15:01,599 INFO L276 IsEmpty]: Start isEmpty. Operand 260535 states and 284186 transitions. [2018-10-24 14:15:01,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 388 [2018-10-24 14:15:01,606 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:15:01,607 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:15:01,607 INFO L424 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:15:01,607 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:15:01,607 INFO L82 PathProgramCache]: Analyzing trace with hash 1207637578, now seen corresponding path program 1 times [2018-10-24 14:15:01,608 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:15:01,608 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:15:01,608 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:15:01,609 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:15:01,609 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:15:01,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:15:02,053 WARN L179 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 7 [2018-10-24 14:15:03,831 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 392 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-10-24 14:15:03,832 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:15:03,832 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:15:03,833 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:15:03,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:15:03,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:15:03,833 INFO L87 Difference]: Start difference. First operand 260535 states and 284186 transitions. Second operand 4 states. [2018-10-24 14:15:15,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:15:15,011 INFO L93 Difference]: Finished difference Result 532890 states and 580609 transitions. [2018-10-24 14:15:15,011 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:15:15,012 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 387 [2018-10-24 14:15:15,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:15:15,341 INFO L225 Difference]: With dead ends: 532890 [2018-10-24 14:15:15,341 INFO L226 Difference]: Without dead ends: 266027 [2018-10-24 14:15:15,481 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:15:15,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266027 states. Received shutdown request... [2018-10-24 14:15:23,807 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 14:15:23,811 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 14:15:23,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:15:23 BoogieIcfgContainer [2018-10-24 14:15:23,811 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 14:15:23,812 INFO L168 Benchmark]: Toolchain (without parser) took 228203.51 ms. Allocated memory was 1.5 GB in the beginning and 4.6 GB in the end (delta: 3.1 GB). Free memory was 1.4 GB in the beginning and 3.2 GB in the end (delta: -1.8 GB). Peak memory consumption was 3.0 GB. Max. memory is 7.1 GB. [2018-10-24 14:15:23,813 INFO L168 Benchmark]: CDTParser took 0.22 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 14:15:23,814 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2586.37 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 243.1 MB). Peak memory consumption was 243.1 MB. Max. memory is 7.1 GB. [2018-10-24 14:15:23,815 INFO L168 Benchmark]: Boogie Procedure Inliner took 882.94 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 832.0 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 73.1 MB. Max. memory is 7.1 GB. [2018-10-24 14:15:23,816 INFO L168 Benchmark]: Boogie Preprocessor took 447.08 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 67.3 MB). Peak memory consumption was 67.3 MB. Max. memory is 7.1 GB. [2018-10-24 14:15:23,816 INFO L168 Benchmark]: RCFGBuilder took 13633.29 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 241.7 MB). Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 35.7 MB). Peak memory consumption was 583.4 MB. Max. memory is 7.1 GB. [2018-10-24 14:15:23,818 INFO L168 Benchmark]: TraceAbstraction took 210648.81 ms. Allocated memory was 2.6 GB in the beginning and 4.6 GB in the end (delta: 2.0 GB). Free memory was 2.1 GB in the beginning and 3.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2018-10-24 14:15:23,826 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2586.37 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 243.1 MB). Peak memory consumption was 243.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 882.94 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 832.0 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 73.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 447.08 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 67.3 MB). Peak memory consumption was 67.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 13633.29 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 241.7 MB). Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 35.7 MB). Peak memory consumption was 583.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 210648.81 ms. Allocated memory was 2.6 GB in the beginning and 4.6 GB in the end (delta: 2.0 GB). Free memory was 2.1 GB in the beginning and 3.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 96]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 96). Cancelled while executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1099 locations, 1 error locations. TIMEOUT Result, 210.5s OverallTime, 12 OverallIterations, 4 TraceHistogramMax, 180.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 10055 SDtfs, 27776 SDslu, 3396 SDs, 0 SdLazy, 63106 SolverSat, 15059 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 150.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 284 GetRequests, 254 SyntacticMatches, 3 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=260535occurred in iteration=11, 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: 21.6s AutomataMinimizationTime, 12 MinimizatonAttempts, 64978 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 4.3s InterpolantComputationTime, 2592 NumberOfCodeBlocks, 2592 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 2579 ConstructedInterpolants, 0 QuantifiedInterpolants, 1816891 SizeOfPredicates, 1 NumberOfNonLiveVariables, 335 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 13 InterpolantComputations, 12 PerfectInterpolantSequences, 1464/1468 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown