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_label33_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-26 19:42:35,340 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 19:42:35,342 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 19:42:35,354 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 19:42:35,354 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 19:42:35,355 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 19:42:35,357 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 19:42:35,359 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 19:42:35,360 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 19:42:35,361 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 19:42:35,362 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 19:42:35,362 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 19:42:35,363 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 19:42:35,364 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 19:42:35,365 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 19:42:35,366 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 19:42:35,367 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 19:42:35,369 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 19:42:35,371 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 19:42:35,373 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 19:42:35,374 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 19:42:35,375 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 19:42:35,378 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 19:42:35,378 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 19:42:35,378 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 19:42:35,379 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 19:42:35,380 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 19:42:35,381 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 19:42:35,382 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 19:42:35,383 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 19:42:35,383 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 19:42:35,384 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-26 19:42:35,387 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 [2018-10-26 19:42:35,403 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 19:42:35,403 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 19:42:35,404 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 19:42:35,404 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-26 19:42:35,406 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-26 19:42:35,407 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-26 19:42:35,407 INFO L133 SettingsManager]: * Use SBE=true [2018-10-26 19:42:35,408 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 19:42:35,408 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 19:42:35,408 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 19:42:35,408 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 19:42:35,408 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 19:42:35,408 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 19:42:35,409 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 19:42:35,409 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 19:42:35,409 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 19:42:35,409 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 19:42:35,409 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 19:42:35,410 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 19:42:35,410 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 19:42:35,411 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 19:42:35,411 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 19:42:35,411 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 19:42:35,411 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-26 19:42:35,411 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 19:42:35,412 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 19:42:35,412 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-26 19:42:35,412 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-26 19:42:35,482 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 19:42:35,499 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 19:42:35,503 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 19:42:35,505 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 19:42:35,505 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 19:42:35,506 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label33_false-unreach-call.c [2018-10-26 19:42:35,566 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/16acbb637/88c5567e15c1413599869fbb3bc745ff/FLAG606114237 [2018-10-26 19:42:36,307 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 19:42:36,308 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label33_false-unreach-call.c [2018-10-26 19:42:36,335 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/16acbb637/88c5567e15c1413599869fbb3bc745ff/FLAG606114237 [2018-10-26 19:42:36,356 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/16acbb637/88c5567e15c1413599869fbb3bc745ff [2018-10-26 19:42:36,369 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 19:42:36,371 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-26 19:42:36,372 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 19:42:36,372 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 19:42:36,379 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 19:42:36,381 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 07:42:36" (1/1) ... [2018-10-26 19:42:36,384 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8de4687 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:42:36, skipping insertion in model container [2018-10-26 19:42:36,384 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 07:42:36" (1/1) ... [2018-10-26 19:42:36,395 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 19:42:36,526 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 19:42:37,702 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 19:42:37,708 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 19:42:38,233 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 19:42:38,260 INFO L193 MainTranslator]: Completed translation [2018-10-26 19:42:38,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:42:38 WrapperNode [2018-10-26 19:42:38,261 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 19:42:38,262 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 19:42:38,263 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 19:42:38,263 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 19:42:38,274 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:42:38" (1/1) ... [2018-10-26 19:42:38,333 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:42:38" (1/1) ... [2018-10-26 19:42:38,749 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 19:42:38,750 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 19:42:38,750 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 19:42:38,750 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 19:42:38,761 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:42:38" (1/1) ... [2018-10-26 19:42:38,761 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:42:38" (1/1) ... [2018-10-26 19:42:38,792 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:42:38" (1/1) ... [2018-10-26 19:42:38,792 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:42:38" (1/1) ... [2018-10-26 19:42:38,875 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:42:38" (1/1) ... [2018-10-26 19:42:38,917 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:42:38" (1/1) ... [2018-10-26 19:42:38,948 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:42:38" (1/1) ... [2018-10-26 19:42:38,989 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 19:42:38,989 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 19:42:38,989 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 19:42:38,990 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 19:42:38,991 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:42:38" (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 [2018-10-26 19:42:39,065 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-26 19:42:39,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 19:42:39,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 19:42:48,314 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 19:42:48,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:42:48 BoogieIcfgContainer [2018-10-26 19:42:48,315 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 19:42:48,316 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 19:42:48,316 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 19:42:48,320 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 19:42:48,320 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 07:42:36" (1/3) ... [2018-10-26 19:42:48,321 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14fc34ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 07:42:48, skipping insertion in model container [2018-10-26 19:42:48,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:42:38" (2/3) ... [2018-10-26 19:42:48,322 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14fc34ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 07:42:48, skipping insertion in model container [2018-10-26 19:42:48,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:42:48" (3/3) ... [2018-10-26 19:42:48,324 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label33_false-unreach-call.c [2018-10-26 19:42:48,334 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 19:42:48,346 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 19:42:48,365 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 19:42:48,420 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-26 19:42:48,421 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 19:42:48,421 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 19:42:48,421 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 19:42:48,421 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 19:42:48,422 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 19:42:48,422 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 19:42:48,422 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 19:42:48,422 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 19:42:48,462 INFO L276 IsEmpty]: Start isEmpty. Operand 758 states. [2018-10-26 19:42:48,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-10-26 19:42:48,478 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:42:48,479 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] [2018-10-26 19:42:48,482 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:42:48,486 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:42:48,487 INFO L82 PathProgramCache]: Analyzing trace with hash -1155896462, now seen corresponding path program 1 times [2018-10-26 19:42:48,489 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 19:42:48,489 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 19:42:48,543 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:42:48,544 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:42:48,544 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:42:48,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:42:48,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 19:42:48,875 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:42:48,875 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 19:42:48,880 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 19:42:48,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 19:42:48,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 19:42:48,897 INFO L87 Difference]: Start difference. First operand 758 states. Second operand 4 states. [2018-10-26 19:42:59,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:42:59,946 INFO L93 Difference]: Finished difference Result 2918 states and 5666 transitions. [2018-10-26 19:42:59,947 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 19:42:59,948 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2018-10-26 19:42:59,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:42:59,986 INFO L225 Difference]: With dead ends: 2918 [2018-10-26 19:42:59,987 INFO L226 Difference]: Without dead ends: 2153 [2018-10-26 19:42:59,999 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 [2018-10-26 19:43:00,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2153 states. [2018-10-26 19:43:00,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2153 to 2153. [2018-10-26 19:43:00,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2153 states. [2018-10-26 19:43:00,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2153 states to 2153 states and 3448 transitions. [2018-10-26 19:43:00,175 INFO L78 Accepts]: Start accepts. Automaton has 2153 states and 3448 transitions. Word has length 24 [2018-10-26 19:43:00,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:43:00,176 INFO L481 AbstractCegarLoop]: Abstraction has 2153 states and 3448 transitions. [2018-10-26 19:43:00,176 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 19:43:00,176 INFO L276 IsEmpty]: Start isEmpty. Operand 2153 states and 3448 transitions. [2018-10-26 19:43:00,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2018-10-26 19:43:00,180 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:43:00,180 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 19:43:00,181 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:43:00,181 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:43:00,181 INFO L82 PathProgramCache]: Analyzing trace with hash -480020766, now seen corresponding path program 1 times [2018-10-26 19:43:00,181 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 19:43:00,181 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 19:43:00,183 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:43:00,183 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:43:00,183 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:43:00,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:43:00,476 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 19:43:00,477 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:43:00,477 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 19:43:00,480 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 19:43:00,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 19:43:00,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 19:43:00,481 INFO L87 Difference]: Start difference. First operand 2153 states and 3448 transitions. Second operand 4 states. [2018-10-26 19:43:11,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:43:11,250 INFO L93 Difference]: Finished difference Result 6377 states and 10263 transitions. [2018-10-26 19:43:11,256 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-26 19:43:11,256 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 90 [2018-10-26 19:43:11,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:43:11,279 INFO L225 Difference]: With dead ends: 6377 [2018-10-26 19:43:11,279 INFO L226 Difference]: Without dead ends: 4226 [2018-10-26 19:43:11,284 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 [2018-10-26 19:43:11,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4226 states. [2018-10-26 19:43:11,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4226 to 4226. [2018-10-26 19:43:11,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4226 states. [2018-10-26 19:43:11,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4226 states to 4226 states and 5833 transitions. [2018-10-26 19:43:11,369 INFO L78 Accepts]: Start accepts. Automaton has 4226 states and 5833 transitions. Word has length 90 [2018-10-26 19:43:11,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:43:11,370 INFO L481 AbstractCegarLoop]: Abstraction has 4226 states and 5833 transitions. [2018-10-26 19:43:11,370 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 19:43:11,371 INFO L276 IsEmpty]: Start isEmpty. Operand 4226 states and 5833 transitions. [2018-10-26 19:43:11,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2018-10-26 19:43:11,381 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:43:11,384 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-26 19:43:11,384 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:43:11,384 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:43:11,384 INFO L82 PathProgramCache]: Analyzing trace with hash -129199766, now seen corresponding path program 1 times [2018-10-26 19:43:11,385 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 19:43:11,385 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 19:43:11,386 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:43:11,386 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:43:11,386 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:43:11,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:43:12,120 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2018-10-26 19:43:12,120 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:43:12,120 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-26 19:43:12,121 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-26 19:43:12,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-26 19:43:12,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-26 19:43:12,122 INFO L87 Difference]: Start difference. First operand 4226 states and 5833 transitions. Second operand 5 states. [2018-10-26 19:43:21,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:43:21,033 INFO L93 Difference]: Finished difference Result 15360 states and 20468 transitions. [2018-10-26 19:43:21,034 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-26 19:43:21,034 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 209 [2018-10-26 19:43:21,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:43:21,083 INFO L225 Difference]: With dead ends: 15360 [2018-10-26 19:43:21,083 INFO L226 Difference]: Without dead ends: 11136 [2018-10-26 19:43:21,089 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-10-26 19:43:21,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11136 states. [2018-10-26 19:43:21,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11136 to 10445. [2018-10-26 19:43:21,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10445 states. [2018-10-26 19:43:21,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10445 states to 10445 states and 12444 transitions. [2018-10-26 19:43:21,258 INFO L78 Accepts]: Start accepts. Automaton has 10445 states and 12444 transitions. Word has length 209 [2018-10-26 19:43:21,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:43:21,258 INFO L481 AbstractCegarLoop]: Abstraction has 10445 states and 12444 transitions. [2018-10-26 19:43:21,259 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-26 19:43:21,259 INFO L276 IsEmpty]: Start isEmpty. Operand 10445 states and 12444 transitions. [2018-10-26 19:43:21,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2018-10-26 19:43:21,269 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:43:21,269 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 19:43:21,270 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:43:21,270 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:43:21,270 INFO L82 PathProgramCache]: Analyzing trace with hash -862455166, now seen corresponding path program 1 times [2018-10-26 19:43:21,270 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 19:43:21,271 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 19:43:21,272 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:43:21,272 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:43:21,272 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:43:21,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:43:21,948 WARN L179 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 14 [2018-10-26 19:43:22,140 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 274 proven. 4 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2018-10-26 19:43:22,140 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 19:43:22,140 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 [2018-10-26 19:43:22,152 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:43:22,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:43:22,277 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 19:43:22,550 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 196 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2018-10-26 19:43:22,574 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-26 19:43:22,575 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2018-10-26 19:43:22,576 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-26 19:43:22,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-26 19:43:22,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-10-26 19:43:22,576 INFO L87 Difference]: Start difference. First operand 10445 states and 12444 transitions. Second operand 6 states. [2018-10-26 19:43:36,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:43:36,597 INFO L93 Difference]: Finished difference Result 31269 states and 37248 transitions. [2018-10-26 19:43:36,597 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-26 19:43:36,597 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 392 [2018-10-26 19:43:36,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:43:36,672 INFO L225 Difference]: With dead ends: 31269 [2018-10-26 19:43:36,673 INFO L226 Difference]: Without dead ends: 18750 [2018-10-26 19:43:36,691 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 399 GetRequests, 392 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2018-10-26 19:43:36,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18750 states. [2018-10-26 19:43:36,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18750 to 13883. [2018-10-26 19:43:36,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13883 states. [2018-10-26 19:43:36,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13883 states to 13883 states and 15539 transitions. [2018-10-26 19:43:36,998 INFO L78 Accepts]: Start accepts. Automaton has 13883 states and 15539 transitions. Word has length 392 [2018-10-26 19:43:36,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:43:36,999 INFO L481 AbstractCegarLoop]: Abstraction has 13883 states and 15539 transitions. [2018-10-26 19:43:36,999 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-26 19:43:36,999 INFO L276 IsEmpty]: Start isEmpty. Operand 13883 states and 15539 transitions. [2018-10-26 19:43:37,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2018-10-26 19:43:37,008 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:43:37,009 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 19:43:37,009 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:43:37,010 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:43:37,010 INFO L82 PathProgramCache]: Analyzing trace with hash -1216932121, now seen corresponding path program 1 times [2018-10-26 19:43:37,010 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 19:43:37,011 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 19:43:37,011 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:43:37,012 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:43:37,012 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:43:37,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:43:37,639 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-10-26 19:43:37,639 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:43:37,639 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-26 19:43:37,640 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 19:43:37,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 19:43:37,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 19:43:37,641 INFO L87 Difference]: Start difference. First operand 13883 states and 15539 transitions. Second operand 4 states. [2018-10-26 19:43:44,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:43:44,619 INFO L93 Difference]: Finished difference Result 31925 states and 36879 transitions. [2018-10-26 19:43:44,620 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 19:43:44,620 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 397 [2018-10-26 19:43:44,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:43:44,653 INFO L225 Difference]: With dead ends: 31925 [2018-10-26 19:43:44,653 INFO L226 Difference]: Without dead ends: 18044 [2018-10-26 19:43:44,672 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 [2018-10-26 19:43:44,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18044 states. [2018-10-26 19:43:44,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18044 to 15956. [2018-10-26 19:43:44,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15956 states. [2018-10-26 19:43:44,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15956 states to 15956 states and 17936 transitions. [2018-10-26 19:43:44,926 INFO L78 Accepts]: Start accepts. Automaton has 15956 states and 17936 transitions. Word has length 397 [2018-10-26 19:43:44,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:43:44,927 INFO L481 AbstractCegarLoop]: Abstraction has 15956 states and 17936 transitions. [2018-10-26 19:43:44,928 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 19:43:44,928 INFO L276 IsEmpty]: Start isEmpty. Operand 15956 states and 17936 transitions. [2018-10-26 19:43:44,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 492 [2018-10-26 19:43:44,938 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:43:44,938 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 19:43:44,939 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:43:44,939 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:43:44,939 INFO L82 PathProgramCache]: Analyzing trace with hash -2066230767, now seen corresponding path program 1 times [2018-10-26 19:43:44,939 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 19:43:44,939 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 19:43:44,940 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:43:44,940 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:43:44,941 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:43:45,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:43:45,576 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2018-10-26 19:43:45,576 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:43:45,576 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-26 19:43:45,577 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 19:43:45,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 19:43:45,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 19:43:45,578 INFO L87 Difference]: Start difference. First operand 15956 states and 17936 transitions. Second operand 4 states. [2018-10-26 19:43:51,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:43:51,778 INFO L93 Difference]: Finished difference Result 48494 states and 55980 transitions. [2018-10-26 19:43:51,778 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 19:43:51,778 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 491 [2018-10-26 19:43:51,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:43:51,835 INFO L225 Difference]: With dead ends: 48494 [2018-10-26 19:43:51,835 INFO L226 Difference]: Without dead ends: 29066 [2018-10-26 19:43:51,862 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 [2018-10-26 19:43:51,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29066 states. [2018-10-26 19:43:52,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29066 to 29066. [2018-10-26 19:43:52,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29066 states. [2018-10-26 19:43:52,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29066 states to 29066 states and 31982 transitions. [2018-10-26 19:43:52,340 INFO L78 Accepts]: Start accepts. Automaton has 29066 states and 31982 transitions. Word has length 491 [2018-10-26 19:43:52,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:43:52,341 INFO L481 AbstractCegarLoop]: Abstraction has 29066 states and 31982 transitions. [2018-10-26 19:43:52,341 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 19:43:52,342 INFO L276 IsEmpty]: Start isEmpty. Operand 29066 states and 31982 transitions. [2018-10-26 19:43:52,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 625 [2018-10-26 19:43:52,358 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:43:52,360 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-26 19:43:52,360 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:43:52,360 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:43:52,361 INFO L82 PathProgramCache]: Analyzing trace with hash 278256215, now seen corresponding path program 1 times [2018-10-26 19:43:52,361 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 19:43:52,361 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 19:43:52,362 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:43:52,362 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:43:52,362 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:43:52,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:43:53,007 WARN L179 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 8 [2018-10-26 19:43:53,365 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 414 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2018-10-26 19:43:53,366 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:43:53,366 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-26 19:43:53,367 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 19:43:53,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 19:43:53,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 19:43:53,367 INFO L87 Difference]: Start difference. First operand 29066 states and 31982 transitions. Second operand 4 states. [2018-10-26 19:43:59,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:43:59,172 INFO L93 Difference]: Finished difference Result 101663 states and 112527 transitions. [2018-10-26 19:43:59,178 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 19:43:59,178 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 624 [2018-10-26 19:43:59,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:43:59,294 INFO L225 Difference]: With dead ends: 101663 [2018-10-26 19:43:59,294 INFO L226 Difference]: Without dead ends: 72599 [2018-10-26 19:43:59,326 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 19:43:59,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72599 states. [2018-10-26 19:44:00,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72599 to 70526. [2018-10-26 19:44:00,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70526 states. [2018-10-26 19:44:00,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70526 states to 70526 states and 76349 transitions. [2018-10-26 19:44:00,130 INFO L78 Accepts]: Start accepts. Automaton has 70526 states and 76349 transitions. Word has length 624 [2018-10-26 19:44:00,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:44:00,131 INFO L481 AbstractCegarLoop]: Abstraction has 70526 states and 76349 transitions. [2018-10-26 19:44:00,131 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 19:44:00,131 INFO L276 IsEmpty]: Start isEmpty. Operand 70526 states and 76349 transitions. [2018-10-26 19:44:00,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 840 [2018-10-26 19:44:00,182 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:44:00,182 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-26 19:44:00,183 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:44:00,183 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:44:00,183 INFO L82 PathProgramCache]: Analyzing trace with hash -184987481, now seen corresponding path program 1 times [2018-10-26 19:44:00,183 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 19:44:00,184 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 19:44:00,185 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:44:00,185 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:44:00,185 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:44:00,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:44:01,320 INFO L134 CoverageAnalysis]: Checked inductivity of 1138 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 1029 trivial. 0 not checked. [2018-10-26 19:44:01,320 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:44:01,320 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 19:44:01,321 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-26 19:44:01,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-26 19:44:01,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 19:44:01,322 INFO L87 Difference]: Start difference. First operand 70526 states and 76349 transitions. Second operand 3 states. [2018-10-26 19:44:04,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:44:04,743 INFO L93 Difference]: Finished difference Result 141050 states and 152696 transitions. [2018-10-26 19:44:04,743 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-26 19:44:04,744 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 839 [2018-10-26 19:44:04,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:44:04,814 INFO L225 Difference]: With dead ends: 141050 [2018-10-26 19:44:04,814 INFO L226 Difference]: Without dead ends: 70526 [2018-10-26 19:44:04,853 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 [2018-10-26 19:44:04,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70526 states. [2018-10-26 19:44:05,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70526 to 70526. [2018-10-26 19:44:05,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70526 states. [2018-10-26 19:44:05,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70526 states to 70526 states and 75156 transitions. [2018-10-26 19:44:05,591 INFO L78 Accepts]: Start accepts. Automaton has 70526 states and 75156 transitions. Word has length 839 [2018-10-26 19:44:05,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:44:05,593 INFO L481 AbstractCegarLoop]: Abstraction has 70526 states and 75156 transitions. [2018-10-26 19:44:05,593 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-26 19:44:05,593 INFO L276 IsEmpty]: Start isEmpty. Operand 70526 states and 75156 transitions. [2018-10-26 19:44:05,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1226 [2018-10-26 19:44:05,733 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:44:05,734 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-26 19:44:05,735 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:44:05,735 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:44:05,735 INFO L82 PathProgramCache]: Analyzing trace with hash -922708106, now seen corresponding path program 1 times [2018-10-26 19:44:05,736 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 19:44:05,736 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 19:44:05,736 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:44:05,737 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:44:05,737 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:44:05,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:44:07,498 INFO L134 CoverageAnalysis]: Checked inductivity of 1805 backedges. 1115 proven. 0 refuted. 0 times theorem prover too weak. 690 trivial. 0 not checked. [2018-10-26 19:44:07,498 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:44:07,499 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-26 19:44:07,499 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 19:44:07,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 19:44:07,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 19:44:07,500 INFO L87 Difference]: Start difference. First operand 70526 states and 75156 transitions. Second operand 4 states. [2018-10-26 19:44:12,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:44:12,524 INFO L93 Difference]: Finished difference Result 155561 states and 165849 transitions. [2018-10-26 19:44:12,525 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 19:44:12,525 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1225 [2018-10-26 19:44:12,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:44:12,597 INFO L225 Difference]: With dead ends: 155561 [2018-10-26 19:44:12,597 INFO L226 Difference]: Without dead ends: 85037 [2018-10-26 19:44:12,636 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 [2018-10-26 19:44:12,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85037 states. [2018-10-26 19:44:13,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85037 to 85037. [2018-10-26 19:44:13,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85037 states. [2018-10-26 19:44:13,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85037 states to 85037 states and 89716 transitions. [2018-10-26 19:44:13,369 INFO L78 Accepts]: Start accepts. Automaton has 85037 states and 89716 transitions. Word has length 1225 [2018-10-26 19:44:13,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:44:13,369 INFO L481 AbstractCegarLoop]: Abstraction has 85037 states and 89716 transitions. [2018-10-26 19:44:13,369 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 19:44:13,369 INFO L276 IsEmpty]: Start isEmpty. Operand 85037 states and 89716 transitions. [2018-10-26 19:44:13,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1778 [2018-10-26 19:44:13,450 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:44:13,451 INFO L375 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-26 19:44:13,452 INFO L424 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:44:13,452 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:44:13,453 INFO L82 PathProgramCache]: Analyzing trace with hash -422778624, now seen corresponding path program 1 times [2018-10-26 19:44:13,453 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 19:44:13,453 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 19:44:13,454 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:44:13,454 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:44:13,454 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:44:13,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:44:16,245 INFO L134 CoverageAnalysis]: Checked inductivity of 3381 backedges. 1812 proven. 0 refuted. 0 times theorem prover too weak. 1569 trivial. 0 not checked. [2018-10-26 19:44:16,246 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:44:16,246 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-26 19:44:16,248 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 19:44:16,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 19:44:16,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 19:44:16,248 INFO L87 Difference]: Start difference. First operand 85037 states and 89716 transitions. Second operand 4 states. [2018-10-26 19:44:21,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:44:21,377 INFO L93 Difference]: Finished difference Result 191493 states and 202166 transitions. [2018-10-26 19:44:21,378 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 19:44:21,378 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1777 [2018-10-26 19:44:21,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:44:21,484 INFO L225 Difference]: With dead ends: 191493 [2018-10-26 19:44:21,484 INFO L226 Difference]: Without dead ends: 107149 [2018-10-26 19:44:21,529 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 3 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 19:44:21,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107149 states. [2018-10-26 19:44:22,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107149 to 106458. [2018-10-26 19:44:22,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106458 states. [2018-10-26 19:44:22,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106458 states to 106458 states and 111319 transitions. [2018-10-26 19:44:22,823 INFO L78 Accepts]: Start accepts. Automaton has 106458 states and 111319 transitions. Word has length 1777 [2018-10-26 19:44:22,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:44:22,824 INFO L481 AbstractCegarLoop]: Abstraction has 106458 states and 111319 transitions. [2018-10-26 19:44:22,824 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 19:44:22,824 INFO L276 IsEmpty]: Start isEmpty. Operand 106458 states and 111319 transitions. [2018-10-26 19:44:22,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1816 [2018-10-26 19:44:22,906 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:44:22,907 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, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-26 19:44:22,907 INFO L424 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:44:22,907 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:44:22,908 INFO L82 PathProgramCache]: Analyzing trace with hash -2068213903, now seen corresponding path program 1 times [2018-10-26 19:44:22,908 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 19:44:22,908 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 19:44:22,909 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:44:22,909 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:44:22,909 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:44:23,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:44:25,838 INFO L134 CoverageAnalysis]: Checked inductivity of 3236 backedges. 1427 proven. 0 refuted. 0 times theorem prover too weak. 1809 trivial. 0 not checked. [2018-10-26 19:44:25,839 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:44:25,839 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-26 19:44:25,840 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 19:44:25,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 19:44:25,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 19:44:25,841 INFO L87 Difference]: Start difference. First operand 106458 states and 111319 transitions. Second operand 4 states. [2018-10-26 19:44:30,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:44:30,962 INFO L93 Difference]: Finished difference Result 235026 states and 246148 transitions. [2018-10-26 19:44:30,962 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 19:44:30,963 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1815 [2018-10-26 19:44:30,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:44:31,087 INFO L225 Difference]: With dead ends: 235026 [2018-10-26 19:44:31,087 INFO L226 Difference]: Without dead ends: 129261 [2018-10-26 19:44:31,144 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 [2018-10-26 19:44:31,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129261 states. [2018-10-26 19:44:32,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129261 to 125806. [2018-10-26 19:44:32,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125806 states. [2018-10-26 19:44:32,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125806 states to 125806 states and 131152 transitions. [2018-10-26 19:44:32,972 INFO L78 Accepts]: Start accepts. Automaton has 125806 states and 131152 transitions. Word has length 1815 [2018-10-26 19:44:32,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:44:32,973 INFO L481 AbstractCegarLoop]: Abstraction has 125806 states and 131152 transitions. [2018-10-26 19:44:32,973 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 19:44:32,973 INFO L276 IsEmpty]: Start isEmpty. Operand 125806 states and 131152 transitions. [2018-10-26 19:44:33,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1948 [2018-10-26 19:44:33,040 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:44:33,041 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, 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, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-26 19:44:33,042 INFO L424 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:44:33,042 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:44:33,043 INFO L82 PathProgramCache]: Analyzing trace with hash -1939597431, now seen corresponding path program 1 times [2018-10-26 19:44:33,043 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 19:44:33,043 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 19:44:33,045 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:44:33,045 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:44:33,046 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:44:33,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:44:36,471 INFO L134 CoverageAnalysis]: Checked inductivity of 3873 backedges. 2116 proven. 0 refuted. 0 times theorem prover too weak. 1757 trivial. 0 not checked. [2018-10-26 19:44:36,471 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:44:36,471 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-26 19:44:36,472 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 19:44:36,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 19:44:36,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 19:44:36,473 INFO L87 Difference]: Start difference. First operand 125806 states and 131152 transitions. Second operand 4 states. [2018-10-26 19:44:41,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:44:41,364 INFO L93 Difference]: Finished difference Result 248843 states and 259514 transitions. [2018-10-26 19:44:41,364 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 19:44:41,364 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1947 [2018-10-26 19:44:41,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:44:41,737 INFO L225 Difference]: With dead ends: 248843 [2018-10-26 19:44:41,737 INFO L226 Difference]: Without dead ends: 111274 [2018-10-26 19:44:41,775 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 19:44:41,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111274 states. [2018-10-26 19:44:42,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111274 to 109892. [2018-10-26 19:44:42,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109892 states. [2018-10-26 19:44:42,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109892 states to 109892 states and 112879 transitions. [2018-10-26 19:44:42,697 INFO L78 Accepts]: Start accepts. Automaton has 109892 states and 112879 transitions. Word has length 1947 [2018-10-26 19:44:42,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:44:42,699 INFO L481 AbstractCegarLoop]: Abstraction has 109892 states and 112879 transitions. [2018-10-26 19:44:42,699 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 19:44:42,699 INFO L276 IsEmpty]: Start isEmpty. Operand 109892 states and 112879 transitions. [2018-10-26 19:44:42,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1958 [2018-10-26 19:44:42,758 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:44:42,759 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, 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, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-26 19:44:42,759 INFO L424 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:44:42,759 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:44:42,759 INFO L82 PathProgramCache]: Analyzing trace with hash 2079655620, now seen corresponding path program 1 times [2018-10-26 19:44:42,760 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 19:44:42,760 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 19:44:42,760 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:44:42,761 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:44:42,761 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:44:42,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:44:49,389 INFO L134 CoverageAnalysis]: Checked inductivity of 3821 backedges. 2814 proven. 499 refuted. 0 times theorem prover too weak. 508 trivial. 0 not checked. [2018-10-26 19:44:49,389 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 19:44:49,389 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 [2018-10-26 19:44:49,397 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:44:49,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:44:49,825 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 19:44:51,535 INFO L134 CoverageAnalysis]: Checked inductivity of 3821 backedges. 1569 proven. 0 refuted. 0 times theorem prover too weak. 2252 trivial. 0 not checked. [2018-10-26 19:44:51,556 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-26 19:44:51,557 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [11] total 13 [2018-10-26 19:44:51,561 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-10-26 19:44:51,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-10-26 19:44:51,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2018-10-26 19:44:51,562 INFO L87 Difference]: Start difference. First operand 109892 states and 112879 transitions. Second operand 13 states. [2018-10-26 19:45:13,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:45:13,237 INFO L93 Difference]: Finished difference Result 225327 states and 231546 transitions. [2018-10-26 19:45:13,238 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-10-26 19:45:13,238 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 1957 [2018-10-26 19:45:13,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:45:13,344 INFO L225 Difference]: With dead ends: 225327 [2018-10-26 19:45:13,345 INFO L226 Difference]: Without dead ends: 114052 [2018-10-26 19:45:13,405 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2000 GetRequests, 1971 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=228, Invalid=702, Unknown=0, NotChecked=0, Total=930 [2018-10-26 19:45:13,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114052 states. [2018-10-26 19:45:14,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114052 to 108503. [2018-10-26 19:45:14,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108503 states. [2018-10-26 19:45:14,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108503 states to 108503 states and 110722 transitions. [2018-10-26 19:45:14,893 INFO L78 Accepts]: Start accepts. Automaton has 108503 states and 110722 transitions. Word has length 1957 [2018-10-26 19:45:14,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:45:14,894 INFO L481 AbstractCegarLoop]: Abstraction has 108503 states and 110722 transitions. [2018-10-26 19:45:14,894 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-10-26 19:45:14,894 INFO L276 IsEmpty]: Start isEmpty. Operand 108503 states and 110722 transitions. [2018-10-26 19:45:14,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2224 [2018-10-26 19:45:14,978 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:45:14,979 INFO L375 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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, 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-26 19:45:14,979 INFO L424 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:45:14,980 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:45:14,980 INFO L82 PathProgramCache]: Analyzing trace with hash -749648741, now seen corresponding path program 1 times [2018-10-26 19:45:14,980 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 19:45:14,980 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 19:45:14,981 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:45:14,981 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:45:14,982 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:45:15,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:45:19,194 INFO L134 CoverageAnalysis]: Checked inductivity of 4732 backedges. 1750 proven. 0 refuted. 0 times theorem prover too weak. 2982 trivial. 0 not checked. [2018-10-26 19:45:19,194 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:45:19,195 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-26 19:45:19,196 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-26 19:45:19,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-26 19:45:19,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-10-26 19:45:19,197 INFO L87 Difference]: Start difference. First operand 108503 states and 110722 transitions. Second operand 7 states. [2018-10-26 19:45:26,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:45:26,947 INFO L93 Difference]: Finished difference Result 360860 states and 368426 transitions. [2018-10-26 19:45:26,947 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-10-26 19:45:26,947 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 2223 [2018-10-26 19:45:26,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:45:27,175 INFO L225 Difference]: With dead ends: 360860 [2018-10-26 19:45:27,176 INFO L226 Difference]: Without dead ends: 253050 [2018-10-26 19:45:27,254 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=211, Unknown=0, NotChecked=0, Total=306 [2018-10-26 19:45:27,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253050 states. [2018-10-26 19:45:28,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253050 to 108503. [2018-10-26 19:45:28,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108503 states. [2018-10-26 19:45:29,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108503 states to 108503 states and 110695 transitions. [2018-10-26 19:45:29,463 INFO L78 Accepts]: Start accepts. Automaton has 108503 states and 110695 transitions. Word has length 2223 [2018-10-26 19:45:29,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:45:29,464 INFO L481 AbstractCegarLoop]: Abstraction has 108503 states and 110695 transitions. [2018-10-26 19:45:29,464 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-26 19:45:29,465 INFO L276 IsEmpty]: Start isEmpty. Operand 108503 states and 110695 transitions. [2018-10-26 19:45:29,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2241 [2018-10-26 19:45:29,545 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:45:29,547 INFO L375 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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, 8, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-26 19:45:29,547 INFO L424 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:45:29,547 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:45:29,548 INFO L82 PathProgramCache]: Analyzing trace with hash 970703154, now seen corresponding path program 1 times [2018-10-26 19:45:29,548 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 19:45:29,548 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 19:45:29,549 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:45:29,549 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:45:29,550 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:45:29,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:45:30,750 WARN L179 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 8 [2018-10-26 19:45:32,750 INFO L134 CoverageAnalysis]: Checked inductivity of 4726 backedges. 2848 proven. 0 refuted. 0 times theorem prover too weak. 1878 trivial. 0 not checked. [2018-10-26 19:45:32,751 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:45:32,751 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-26 19:45:32,753 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 19:45:32,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 19:45:32,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 19:45:32,753 INFO L87 Difference]: Start difference. First operand 108503 states and 110695 transitions. Second operand 4 states. [2018-10-26 19:45:38,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:45:38,083 INFO L93 Difference]: Finished difference Result 218385 states and 222847 transitions. [2018-10-26 19:45:38,085 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 19:45:38,086 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 2240 [2018-10-26 19:45:38,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:45:38,199 INFO L225 Difference]: With dead ends: 218385 [2018-10-26 19:45:38,199 INFO L226 Difference]: Without dead ends: 109192 [2018-10-26 19:45:38,257 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 19:45:38,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109192 states. [2018-10-26 19:45:39,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109192 to 106428. [2018-10-26 19:45:39,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106428 states. [2018-10-26 19:45:39,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106428 states to 106428 states and 108294 transitions. [2018-10-26 19:45:39,484 INFO L78 Accepts]: Start accepts. Automaton has 106428 states and 108294 transitions. Word has length 2240 [2018-10-26 19:45:39,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:45:39,485 INFO L481 AbstractCegarLoop]: Abstraction has 106428 states and 108294 transitions. [2018-10-26 19:45:39,485 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 19:45:39,485 INFO L276 IsEmpty]: Start isEmpty. Operand 106428 states and 108294 transitions. [2018-10-26 19:45:39,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2245 [2018-10-26 19:45:39,554 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:45:39,555 INFO L375 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-26 19:45:39,555 INFO L424 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:45:39,555 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:45:39,556 INFO L82 PathProgramCache]: Analyzing trace with hash 1888473982, now seen corresponding path program 1 times [2018-10-26 19:45:39,556 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 19:45:39,556 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 19:45:39,557 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:45:39,557 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:45:39,557 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:45:39,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:45:44,515 INFO L134 CoverageAnalysis]: Checked inductivity of 4498 backedges. 179 proven. 0 refuted. 0 times theorem prover too weak. 4319 trivial. 0 not checked. [2018-10-26 19:45:44,516 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:45:44,516 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-26 19:45:44,517 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 19:45:44,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 19:45:44,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 19:45:44,518 INFO L87 Difference]: Start difference. First operand 106428 states and 108294 transitions. Second operand 4 states. [2018-10-26 19:45:49,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:45:49,292 INFO L93 Difference]: Finished difference Result 214234 states and 218015 transitions. [2018-10-26 19:45:49,293 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 19:45:49,293 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 2244 [2018-10-26 19:45:49,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:45:49,413 INFO L225 Difference]: With dead ends: 214234 [2018-10-26 19:45:49,413 INFO L226 Difference]: Without dead ends: 106423 [2018-10-26 19:45:49,463 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 19:45:49,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106423 states. [2018-10-26 19:45:50,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106423 to 100895. [2018-10-26 19:45:50,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100895 states. [2018-10-26 19:45:50,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100895 states to 100895 states and 102441 transitions. [2018-10-26 19:45:50,868 INFO L78 Accepts]: Start accepts. Automaton has 100895 states and 102441 transitions. Word has length 2244 [2018-10-26 19:45:50,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:45:50,869 INFO L481 AbstractCegarLoop]: Abstraction has 100895 states and 102441 transitions. [2018-10-26 19:45:50,869 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 19:45:50,870 INFO L276 IsEmpty]: Start isEmpty. Operand 100895 states and 102441 transitions. [2018-10-26 19:45:50,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2605 [2018-10-26 19:45:50,967 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:45:50,969 INFO L375 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 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, 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, 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, 2, 2, 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] [2018-10-26 19:45:50,969 INFO L424 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:45:50,969 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:45:50,970 INFO L82 PathProgramCache]: Analyzing trace with hash -1954767418, now seen corresponding path program 1 times [2018-10-26 19:45:50,970 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 19:45:50,970 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 19:45:50,971 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:45:50,971 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:45:50,971 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:45:51,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:45:54,504 INFO L134 CoverageAnalysis]: Checked inductivity of 7053 backedges. 2285 proven. 0 refuted. 0 times theorem prover too weak. 4768 trivial. 0 not checked. [2018-10-26 19:45:54,505 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:45:54,505 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 19:45:54,506 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-26 19:45:54,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-26 19:45:54,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 19:45:54,507 INFO L87 Difference]: Start difference. First operand 100895 states and 102441 transitions. Second operand 3 states. [2018-10-26 19:45:57,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:45:57,564 INFO L93 Difference]: Finished difference Result 207316 states and 210563 transitions. [2018-10-26 19:45:57,565 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-26 19:45:57,565 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2604 [2018-10-26 19:45:57,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:45:57,664 INFO L225 Difference]: With dead ends: 207316 [2018-10-26 19:45:57,664 INFO L226 Difference]: Without dead ends: 107114 [2018-10-26 19:45:57,714 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 [2018-10-26 19:45:57,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107114 states. [2018-10-26 19:45:58,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107114 to 100204. [2018-10-26 19:45:58,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100204 states. [2018-10-26 19:45:58,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100204 states to 100204 states and 101730 transitions. [2018-10-26 19:45:58,943 INFO L78 Accepts]: Start accepts. Automaton has 100204 states and 101730 transitions. Word has length 2604 [2018-10-26 19:45:58,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:45:58,944 INFO L481 AbstractCegarLoop]: Abstraction has 100204 states and 101730 transitions. [2018-10-26 19:45:58,944 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-26 19:45:58,944 INFO L276 IsEmpty]: Start isEmpty. Operand 100204 states and 101730 transitions. [2018-10-26 19:45:59,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2738 [2018-10-26 19:45:59,042 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:45:59,043 INFO L375 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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, 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, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 19:45:59,043 INFO L424 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:45:59,043 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:45:59,044 INFO L82 PathProgramCache]: Analyzing trace with hash 1593888318, now seen corresponding path program 1 times [2018-10-26 19:45:59,044 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 19:45:59,044 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 19:45:59,045 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:45:59,045 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:45:59,045 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:45:59,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:46:07,107 INFO L134 CoverageAnalysis]: Checked inductivity of 6706 backedges. 3190 proven. 2651 refuted. 0 times theorem prover too weak. 865 trivial. 0 not checked. [2018-10-26 19:46:07,107 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 19:46:07,107 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 [2018-10-26 19:46:07,117 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:46:07,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:46:07,728 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 19:46:11,037 INFO L134 CoverageAnalysis]: Checked inductivity of 6706 backedges. 3930 proven. 0 refuted. 0 times theorem prover too weak. 2776 trivial. 0 not checked. [2018-10-26 19:46:11,068 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-26 19:46:11,069 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [11] total 12 [2018-10-26 19:46:11,071 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-26 19:46:11,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-26 19:46:11,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-10-26 19:46:11,071 INFO L87 Difference]: Start difference. First operand 100204 states and 101730 transitions. Second operand 12 states. Received shutdown request... [2018-10-26 19:46:19,913 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-10-26 19:46:19,913 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-26 19:46:19,919 WARN L205 ceAbstractionStarter]: Timeout [2018-10-26 19:46:19,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 07:46:19 BoogieIcfgContainer [2018-10-26 19:46:19,920 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 19:46:19,921 INFO L168 Benchmark]: Toolchain (without parser) took 223551.45 ms. Allocated memory was 1.5 GB in the beginning and 4.7 GB in the end (delta: 3.2 GB). Free memory was 1.4 GB in the beginning and 2.6 GB in the end (delta: -1.2 GB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-10-26 19:46:19,922 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-26 19:46:19,923 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1890.06 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. [2018-10-26 19:46:19,923 INFO L168 Benchmark]: Boogie Procedure Inliner took 486.75 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 782.8 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -947.7 MB). Peak memory consumption was 44.9 MB. Max. memory is 7.1 GB. [2018-10-26 19:46:19,924 INFO L168 Benchmark]: Boogie Preprocessor took 239.35 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 27.4 MB). Peak memory consumption was 27.4 MB. Max. memory is 7.1 GB. [2018-10-26 19:46:19,925 INFO L168 Benchmark]: RCFGBuilder took 9325.68 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 534.5 MB). Peak memory consumption was 534.5 MB. Max. memory is 7.1 GB. [2018-10-26 19:46:19,926 INFO L168 Benchmark]: TraceAbstraction took 211603.80 ms. Allocated memory was 2.3 GB in the beginning and 4.7 GB in the end (delta: 2.4 GB). Free memory was 1.7 GB in the beginning and 2.6 GB in the end (delta: -981.2 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2018-10-26 19:46:19,931 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1890.06 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 486.75 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 782.8 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -947.7 MB). Peak memory consumption was 44.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 239.35 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 27.4 MB). Peak memory consumption was 27.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 9325.68 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 534.5 MB). Peak memory consumption was 534.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 211603.80 ms. Allocated memory was 2.3 GB in the beginning and 4.7 GB in the end (delta: 2.4 GB). Free memory was 1.7 GB in the beginning and 2.6 GB in the end (delta: -981.2 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 78]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 78). Cancelled while BasicCegarLoop was constructing difference of abstraction (100204states) and FLOYD_HOARE automaton (currently 16 states, 12 states before enhancement),while ReachableStatesComputation was computing reachable states (10022 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 758 locations, 1 error locations. TIMEOUT Result, 211.5s OverallTime, 18 OverallIterations, 11 TraceHistogramMax, 141.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 8762 SDtfs, 42290 SDslu, 4485 SDs, 0 SdLazy, 90127 SolverSat, 12448 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 109.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5265 GetRequests, 5145 SyntacticMatches, 22 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 354 ImplicationChecksByTransitivity, 5.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=125806occurred 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: 15.3s AutomataMinimizationTime, 17 MinimizatonAttempts, 180545 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.7s SsaConstructionTime, 2.4s SatisfiabilityAnalysisTime, 19.4s InterpolantComputationTime, 28921 NumberOfCodeBlocks, 28921 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 28900 ConstructedInterpolants, 0 QuantifiedInterpolants, 131829770 SizeOfPredicates, 0 NumberOfNonLiveVariables, 5718 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 21 InterpolantComputations, 18 PerfectInterpolantSequences, 53953/57107 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown