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_label09_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 14:36:38,461 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 14:36:38,463 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 14:36:38,482 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 14:36:38,483 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 14:36:38,484 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 14:36:38,486 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 14:36:38,489 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 14:36:38,491 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 14:36:38,492 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 14:36:38,494 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 14:36:38,494 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 14:36:38,497 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 14:36:38,500 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 14:36:38,508 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 14:36:38,509 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 14:36:38,510 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 14:36:38,515 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 14:36:38,518 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 14:36:38,520 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 14:36:38,521 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 14:36:38,524 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 14:36:38,530 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 14:36:38,542 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-10-24 14:36:38,565 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 14:36:38,566 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 14:36:38,567 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 14:36:38,567 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-24 14:36:38,568 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-24 14:36:38,568 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-24 14:36:38,568 INFO L133 SettingsManager]: * Use SBE=true [2018-10-24 14:36:38,568 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 14:36:38,569 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 14:36:38,570 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 14:36:38,570 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 14:36:38,570 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 14:36:38,570 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 14:36:38,570 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 14:36:38,570 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 14:36:38,571 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 14:36:38,571 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 14:36:38,571 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 14:36:38,571 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 14:36:38,571 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 14:36:38,573 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 14:36:38,573 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 14:36:38,573 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 14:36:38,573 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-24 14:36:38,573 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 14:36:38,574 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 14:36:38,574 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 14:36:38,574 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 14:36:38,631 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 14:36:38,644 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 14:36:38,648 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 14:36:38,650 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 14:36:38,650 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 14:36:38,651 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label09_false-unreach-call.c [2018-10-24 14:36:38,712 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/e0c0fafd6/f6354aee125e4dd0bb93b4172b55f38f/FLAG050e42bb5 [2018-10-24 14:36:39,523 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 14:36:39,524 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label09_false-unreach-call.c [2018-10-24 14:36:39,548 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/e0c0fafd6/f6354aee125e4dd0bb93b4172b55f38f/FLAG050e42bb5 [2018-10-24 14:36:39,568 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/e0c0fafd6/f6354aee125e4dd0bb93b4172b55f38f [2018-10-24 14:36:39,581 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 14:36:39,583 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 14:36:39,584 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 14:36:39,585 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 14:36:39,590 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 14:36:39,592 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:36:39" (1/1) ... [2018-10-24 14:36:39,595 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 24.10 02:36:39, skipping insertion in model container [2018-10-24 14:36:39,595 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:36:39" (1/1) ... [2018-10-24 14:36:39,607 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 14:36:39,774 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 14:36:40,967 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 14:36:40,972 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 14:36:41,387 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 14:36:41,422 INFO L193 MainTranslator]: Completed translation [2018-10-24 14:36:41,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:36:41 WrapperNode [2018-10-24 14:36:41,423 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 14:36:41,424 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 14:36:41,427 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 14:36:41,427 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 14:36:41,438 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:36:41" (1/1) ... [2018-10-24 14:36:41,515 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:36:41" (1/1) ... [2018-10-24 14:36:41,934 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 14:36:41,934 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 14:36:41,935 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 14:36:41,935 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 14:36:41,947 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:36:41" (1/1) ... [2018-10-24 14:36:41,947 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:36:41" (1/1) ... [2018-10-24 14:36:41,973 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:36:41" (1/1) ... [2018-10-24 14:36:41,974 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:36:41" (1/1) ... [2018-10-24 14:36:42,064 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:36:41" (1/1) ... [2018-10-24 14:36:42,102 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:36:41" (1/1) ... [2018-10-24 14:36:42,135 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:36:41" (1/1) ... [2018-10-24 14:36:42,167 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 14:36:42,168 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 14:36:42,168 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 14:36:42,168 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 14:36:42,169 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:36:41" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 14:36:42,240 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-24 14:36:42,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 14:36:42,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 14:36:49,927 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 14:36:49,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:36:49 BoogieIcfgContainer [2018-10-24 14:36:49,928 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 14:36:49,929 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 14:36:49,930 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 14:36:49,933 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 14:36:49,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:36:39" (1/3) ... [2018-10-24 14:36:49,934 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 24.10 02:36:49, skipping insertion in model container [2018-10-24 14:36:49,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:36:41" (2/3) ... [2018-10-24 14:36:49,935 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 24.10 02:36:49, skipping insertion in model container [2018-10-24 14:36:49,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:36:49" (3/3) ... [2018-10-24 14:36:49,937 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label09_false-unreach-call.c [2018-10-24 14:36:49,947 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 14:36:49,956 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 14:36:49,974 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 14:36:50,019 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-24 14:36:50,020 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 14:36:50,020 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 14:36:50,021 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 14:36:50,021 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 14:36:50,021 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 14:36:50,021 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 14:36:50,021 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 14:36:50,021 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 14:36:50,059 INFO L276 IsEmpty]: Start isEmpty. Operand 758 states. [2018-10-24 14:36:50,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-24 14:36:50,071 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:36:50,072 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:36:50,075 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:36:50,082 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:36:50,082 INFO L82 PathProgramCache]: Analyzing trace with hash -159296518, now seen corresponding path program 1 times [2018-10-24 14:36:50,084 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:36:50,085 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:36:50,136 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:36:50,136 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:36:50,136 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:36:50,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:36:50,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:36:50,287 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:36:50,287 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-24 14:36:50,292 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 14:36:50,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 14:36:50,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:36:50,312 INFO L87 Difference]: Start difference. First operand 758 states. Second operand 3 states. [2018-10-24 14:36:57,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:36:57,933 INFO L93 Difference]: Finished difference Result 2208 states and 4269 transitions. [2018-10-24 14:36:57,933 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 14:36:57,935 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-10-24 14:36:57,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:36:57,968 INFO L225 Difference]: With dead ends: 2208 [2018-10-24 14:36:57,968 INFO L226 Difference]: Without dead ends: 1446 [2018-10-24 14:36:57,977 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:36:57,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1446 states. [2018-10-24 14:36:58,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1446 to 1446. [2018-10-24 14:36:58,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1446 states. [2018-10-24 14:36:58,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1446 states to 1446 states and 2407 transitions. [2018-10-24 14:36:58,115 INFO L78 Accepts]: Start accepts. Automaton has 1446 states and 2407 transitions. Word has length 11 [2018-10-24 14:36:58,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:36:58,115 INFO L481 AbstractCegarLoop]: Abstraction has 1446 states and 2407 transitions. [2018-10-24 14:36:58,116 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 14:36:58,116 INFO L276 IsEmpty]: Start isEmpty. Operand 1446 states and 2407 transitions. [2018-10-24 14:36:58,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-10-24 14:36:58,120 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:36:58,121 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 14:36:58,121 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:36:58,121 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:36:58,122 INFO L82 PathProgramCache]: Analyzing trace with hash -1306375183, now seen corresponding path program 1 times [2018-10-24 14:36:58,122 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:36:58,122 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:36:58,124 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:36:58,124 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:36:58,124 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:36:58,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:36:58,338 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:36:58,338 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:36:58,339 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:36:58,340 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:36:58,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:36:58,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:36:58,341 INFO L87 Difference]: Start difference. First operand 1446 states and 2407 transitions. Second operand 4 states. [2018-10-24 14:37:06,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:37:06,644 INFO L93 Difference]: Finished difference Result 4272 states and 7156 transitions. [2018-10-24 14:37:06,644 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 14:37:06,644 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 78 [2018-10-24 14:37:06,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:37:06,661 INFO L225 Difference]: With dead ends: 4272 [2018-10-24 14:37:06,661 INFO L226 Difference]: Without dead ends: 2828 [2018-10-24 14:37:06,668 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:37:06,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2828 states. [2018-10-24 14:37:06,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2828 to 2828. [2018-10-24 14:37:06,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2828 states. [2018-10-24 14:37:06,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2828 states to 2828 states and 4067 transitions. [2018-10-24 14:37:06,729 INFO L78 Accepts]: Start accepts. Automaton has 2828 states and 4067 transitions. Word has length 78 [2018-10-24 14:37:06,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:37:06,730 INFO L481 AbstractCegarLoop]: Abstraction has 2828 states and 4067 transitions. [2018-10-24 14:37:06,730 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:37:06,730 INFO L276 IsEmpty]: Start isEmpty. Operand 2828 states and 4067 transitions. [2018-10-24 14:37:06,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-10-24 14:37:06,733 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:37:06,733 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:37:06,734 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:37:06,734 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:37:06,734 INFO L82 PathProgramCache]: Analyzing trace with hash 660456686, now seen corresponding path program 1 times [2018-10-24 14:37:06,734 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:37:06,734 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:37:06,735 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:37:06,735 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:37:06,736 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:37:06,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:37:06,915 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:37:06,915 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:37:06,915 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:37:06,916 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:37:06,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:37:06,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:37:06,917 INFO L87 Difference]: Start difference. First operand 2828 states and 4067 transitions. Second operand 4 states. [2018-10-24 14:37:16,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:37:16,319 INFO L93 Difference]: Finished difference Result 11198 states and 16156 transitions. [2018-10-24 14:37:16,320 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:37:16,320 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 79 [2018-10-24 14:37:16,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:37:16,359 INFO L225 Difference]: With dead ends: 11198 [2018-10-24 14:37:16,360 INFO L226 Difference]: Without dead ends: 8372 [2018-10-24 14:37:16,365 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:37:16,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8372 states. [2018-10-24 14:37:16,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8372 to 5592. [2018-10-24 14:37:16,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5592 states. [2018-10-24 14:37:16,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5592 states to 5592 states and 7213 transitions. [2018-10-24 14:37:16,485 INFO L78 Accepts]: Start accepts. Automaton has 5592 states and 7213 transitions. Word has length 79 [2018-10-24 14:37:16,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:37:16,485 INFO L481 AbstractCegarLoop]: Abstraction has 5592 states and 7213 transitions. [2018-10-24 14:37:16,486 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:37:16,486 INFO L276 IsEmpty]: Start isEmpty. Operand 5592 states and 7213 transitions. [2018-10-24 14:37:16,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2018-10-24 14:37:16,492 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:37:16,493 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:37:16,493 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:37:16,493 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:37:16,493 INFO L82 PathProgramCache]: Analyzing trace with hash 2127104300, now seen corresponding path program 1 times [2018-10-24 14:37:16,494 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:37:16,494 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:37:16,495 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:37:16,495 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:37:16,495 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:37:16,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:37:16,909 WARN L179 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-10-24 14:37:17,245 WARN L179 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 18 [2018-10-24 14:37:17,585 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-10-24 14:37:17,586 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:37:17,586 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:37:17,587 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 14:37:17,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 14:37:17,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:37:17,588 INFO L87 Difference]: Start difference. First operand 5592 states and 7213 transitions. Second operand 5 states. [2018-10-24 14:37:25,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:37:25,758 INFO L93 Difference]: Finished difference Result 15328 states and 19134 transitions. [2018-10-24 14:37:25,759 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 14:37:25,759 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 200 [2018-10-24 14:37:25,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:37:25,796 INFO L225 Difference]: With dead ends: 15328 [2018-10-24 14:37:25,797 INFO L226 Difference]: Without dead ends: 9738 [2018-10-24 14:37:25,806 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-10-24 14:37:25,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9738 states. [2018-10-24 14:37:25,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9738 to 9047. [2018-10-24 14:37:25,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9047 states. [2018-10-24 14:37:25,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9047 states to 9047 states and 10903 transitions. [2018-10-24 14:37:25,949 INFO L78 Accepts]: Start accepts. Automaton has 9047 states and 10903 transitions. Word has length 200 [2018-10-24 14:37:25,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:37:25,949 INFO L481 AbstractCegarLoop]: Abstraction has 9047 states and 10903 transitions. [2018-10-24 14:37:25,949 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 14:37:25,950 INFO L276 IsEmpty]: Start isEmpty. Operand 9047 states and 10903 transitions. [2018-10-24 14:37:25,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2018-10-24 14:37:25,962 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:37:25,962 INFO L375 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:37:25,962 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:37:25,963 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:37:25,963 INFO L82 PathProgramCache]: Analyzing trace with hash -238322957, now seen corresponding path program 1 times [2018-10-24 14:37:25,963 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:37:25,963 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:37:25,964 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:37:25,964 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:37:25,964 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:37:26,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:37:26,501 WARN L179 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 7 [2018-10-24 14:37:26,748 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 252 proven. 4 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-10-24 14:37:26,748 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:37:26,749 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 14:37:26,761 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:37:26,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:37:26,888 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:37:27,159 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 165 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2018-10-24 14:37:27,180 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 14:37:27,181 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2018-10-24 14:37:27,182 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 14:37:27,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 14:37:27,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 14:37:27,183 INFO L87 Difference]: Start difference. First operand 9047 states and 10903 transitions. Second operand 6 states. [2018-10-24 14:37:41,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:37:41,201 INFO L93 Difference]: Finished difference Result 26400 states and 31518 transitions. [2018-10-24 14:37:41,203 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-24 14:37:41,203 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 383 [2018-10-24 14:37:41,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:37:41,274 INFO L225 Difference]: With dead ends: 26400 [2018-10-24 14:37:41,274 INFO L226 Difference]: Without dead ends: 13890 [2018-10-24 14:37:41,287 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 394 GetRequests, 385 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2018-10-24 14:37:41,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13890 states. [2018-10-24 14:37:41,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13890 to 11115. [2018-10-24 14:37:41,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11115 states. [2018-10-24 14:37:41,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11115 states to 11115 states and 12233 transitions. [2018-10-24 14:37:41,499 INFO L78 Accepts]: Start accepts. Automaton has 11115 states and 12233 transitions. Word has length 383 [2018-10-24 14:37:41,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:37:41,500 INFO L481 AbstractCegarLoop]: Abstraction has 11115 states and 12233 transitions. [2018-10-24 14:37:41,500 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 14:37:41,500 INFO L276 IsEmpty]: Start isEmpty. Operand 11115 states and 12233 transitions. [2018-10-24 14:37:41,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 471 [2018-10-24 14:37:41,510 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:37:41,510 INFO L375 BasicCegarLoop]: trace histogram [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, 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] [2018-10-24 14:37:41,510 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:37:41,511 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:37:41,511 INFO L82 PathProgramCache]: Analyzing trace with hash 1171501576, now seen corresponding path program 1 times [2018-10-24 14:37:41,511 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:37:41,511 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:37:41,512 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:37:41,512 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:37:41,512 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:37:41,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:37:42,102 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 184 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-10-24 14:37:42,102 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:37:42,103 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:37:42,104 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:37:42,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:37:42,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:37:42,105 INFO L87 Difference]: Start difference. First operand 11115 states and 12233 transitions. Second operand 4 states. [2018-10-24 14:37:52,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:37:52,049 INFO L93 Difference]: Finished difference Result 30535 states and 34435 transitions. [2018-10-24 14:37:52,049 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:37:52,049 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 470 [2018-10-24 14:37:52,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:37:52,083 INFO L225 Difference]: With dead ends: 30535 [2018-10-24 14:37:52,083 INFO L226 Difference]: Without dead ends: 18030 [2018-10-24 14:37:52,096 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:37:52,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18030 states. [2018-10-24 14:37:52,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18030 to 14565. [2018-10-24 14:37:52,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14565 states. [2018-10-24 14:37:52,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14565 states to 14565 states and 15989 transitions. [2018-10-24 14:37:52,294 INFO L78 Accepts]: Start accepts. Automaton has 14565 states and 15989 transitions. Word has length 470 [2018-10-24 14:37:52,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:37:52,295 INFO L481 AbstractCegarLoop]: Abstraction has 14565 states and 15989 transitions. [2018-10-24 14:37:52,295 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:37:52,295 INFO L276 IsEmpty]: Start isEmpty. Operand 14565 states and 15989 transitions. [2018-10-24 14:37:52,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 479 [2018-10-24 14:37:52,304 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:37:52,304 INFO L375 BasicCegarLoop]: trace histogram [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, 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] [2018-10-24 14:37:52,305 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:37:52,305 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:37:52,305 INFO L82 PathProgramCache]: Analyzing trace with hash 556148764, now seen corresponding path program 1 times [2018-10-24 14:37:52,305 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:37:52,306 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:37:52,306 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:37:52,307 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:37:52,307 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:37:52,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:37:52,963 WARN L179 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 8 [2018-10-24 14:37:53,059 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 255 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-10-24 14:37:53,060 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:37:53,060 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:37:53,060 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:37:53,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:37:53,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:37:53,061 INFO L87 Difference]: Start difference. First operand 14565 states and 15989 transitions. Second operand 4 states. [2018-10-24 14:37:58,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:37:58,762 INFO L93 Difference]: Finished difference Result 56077 states and 61754 transitions. [2018-10-24 14:37:58,770 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:37:58,770 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 478 [2018-10-24 14:37:58,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:37:58,850 INFO L225 Difference]: With dead ends: 56077 [2018-10-24 14:37:58,851 INFO L226 Difference]: Without dead ends: 40821 [2018-10-24 14:37:58,866 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 [2018-10-24 14:37:58,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40821 states. [2018-10-24 14:37:59,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40821 to 38748. [2018-10-24 14:37:59,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38748 states. [2018-10-24 14:37:59,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38748 states to 38748 states and 41749 transitions. [2018-10-24 14:37:59,300 INFO L78 Accepts]: Start accepts. Automaton has 38748 states and 41749 transitions. Word has length 478 [2018-10-24 14:37:59,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:37:59,301 INFO L481 AbstractCegarLoop]: Abstraction has 38748 states and 41749 transitions. [2018-10-24 14:37:59,301 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:37:59,301 INFO L276 IsEmpty]: Start isEmpty. Operand 38748 states and 41749 transitions. [2018-10-24 14:37:59,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2018-10-24 14:37:59,314 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:37:59,315 INFO L375 BasicCegarLoop]: trace histogram [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, 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] [2018-10-24 14:37:59,315 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:37:59,315 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:37:59,315 INFO L82 PathProgramCache]: Analyzing trace with hash -809065653, now seen corresponding path program 1 times [2018-10-24 14:37:59,316 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:37:59,316 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:37:59,317 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:37:59,317 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:37:59,318 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:37:59,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:37:59,798 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 257 trivial. 0 not checked. [2018-10-24 14:37:59,799 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:37:59,799 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:37:59,800 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 14:37:59,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 14:37:59,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:37:59,800 INFO L87 Difference]: Start difference. First operand 38748 states and 41749 transitions. Second operand 3 states. [2018-10-24 14:38:02,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:38:02,972 INFO L93 Difference]: Finished difference Result 77494 states and 83496 transitions. [2018-10-24 14:38:02,975 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 14:38:02,975 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 484 [2018-10-24 14:38:02,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:38:03,023 INFO L225 Difference]: With dead ends: 77494 [2018-10-24 14:38:03,023 INFO L226 Difference]: Without dead ends: 38748 [2018-10-24 14:38:03,058 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:38:03,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38748 states. [2018-10-24 14:38:03,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38748 to 38748. [2018-10-24 14:38:03,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38748 states. [2018-10-24 14:38:03,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38748 states to 38748 states and 41166 transitions. [2018-10-24 14:38:03,472 INFO L78 Accepts]: Start accepts. Automaton has 38748 states and 41166 transitions. Word has length 484 [2018-10-24 14:38:03,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:38:03,473 INFO L481 AbstractCegarLoop]: Abstraction has 38748 states and 41166 transitions. [2018-10-24 14:38:03,473 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 14:38:03,474 INFO L276 IsEmpty]: Start isEmpty. Operand 38748 states and 41166 transitions. [2018-10-24 14:38:03,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 493 [2018-10-24 14:38:03,486 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:38:03,487 INFO L375 BasicCegarLoop]: trace histogram [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, 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] [2018-10-24 14:38:03,487 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:38:03,488 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:38:03,488 INFO L82 PathProgramCache]: Analyzing trace with hash -746510753, now seen corresponding path program 1 times [2018-10-24 14:38:03,488 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:38:03,488 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:38:03,489 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:38:03,489 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:38:03,489 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:38:03,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:38:04,426 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 206 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2018-10-24 14:38:04,427 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:38:04,427 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:38:04,428 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 14:38:04,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 14:38:04,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:38:04,428 INFO L87 Difference]: Start difference. First operand 38748 states and 41166 transitions. Second operand 3 states. [2018-10-24 14:38:07,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:38:07,795 INFO L93 Difference]: Finished difference Result 78876 states and 83778 transitions. [2018-10-24 14:38:07,796 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 14:38:07,796 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 492 [2018-10-24 14:38:07,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:38:07,840 INFO L225 Difference]: With dead ends: 78876 [2018-10-24 14:38:07,840 INFO L226 Difference]: Without dead ends: 40130 [2018-10-24 14:38:07,870 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:38:07,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40130 states. [2018-10-24 14:38:08,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40130 to 40130. [2018-10-24 14:38:08,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40130 states. [2018-10-24 14:38:08,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40130 states to 40130 states and 42550 transitions. [2018-10-24 14:38:08,280 INFO L78 Accepts]: Start accepts. Automaton has 40130 states and 42550 transitions. Word has length 492 [2018-10-24 14:38:08,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:38:08,281 INFO L481 AbstractCegarLoop]: Abstraction has 40130 states and 42550 transitions. [2018-10-24 14:38:08,281 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 14:38:08,281 INFO L276 IsEmpty]: Start isEmpty. Operand 40130 states and 42550 transitions. [2018-10-24 14:38:08,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 521 [2018-10-24 14:38:08,293 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:38:08,294 INFO L375 BasicCegarLoop]: trace histogram [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, 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] [2018-10-24 14:38:08,294 INFO L424 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:38:08,294 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:38:08,294 INFO L82 PathProgramCache]: Analyzing trace with hash -578733036, now seen corresponding path program 1 times [2018-10-24 14:38:08,295 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:38:08,295 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:38:08,295 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:38:08,296 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:38:08,296 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:38:08,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:38:08,764 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 311 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-10-24 14:38:08,764 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:38:08,765 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:38:08,765 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:38:08,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:38:08,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:38:08,766 INFO L87 Difference]: Start difference. First operand 40130 states and 42550 transitions. Second operand 4 states. [2018-10-24 14:38:14,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:38:14,083 INFO L93 Difference]: Finished difference Result 89932 states and 95582 transitions. [2018-10-24 14:38:14,083 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:38:14,083 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 520 [2018-10-24 14:38:14,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:38:14,132 INFO L225 Difference]: With dead ends: 89932 [2018-10-24 14:38:14,132 INFO L226 Difference]: Without dead ends: 49111 [2018-10-24 14:38:14,152 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:38:14,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49111 states. [2018-10-24 14:38:14,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49111 to 49111. [2018-10-24 14:38:14,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49111 states. [2018-10-24 14:38:14,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49111 states to 49111 states and 51892 transitions. [2018-10-24 14:38:14,642 INFO L78 Accepts]: Start accepts. Automaton has 49111 states and 51892 transitions. Word has length 520 [2018-10-24 14:38:14,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:38:14,643 INFO L481 AbstractCegarLoop]: Abstraction has 49111 states and 51892 transitions. [2018-10-24 14:38:14,643 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:38:14,644 INFO L276 IsEmpty]: Start isEmpty. Operand 49111 states and 51892 transitions. [2018-10-24 14:38:14,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1087 [2018-10-24 14:38:14,661 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:38:14,662 INFO L375 BasicCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:38:14,662 INFO L424 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:38:14,663 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:38:14,663 INFO L82 PathProgramCache]: Analyzing trace with hash 2001695866, now seen corresponding path program 1 times [2018-10-24 14:38:14,663 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:38:14,663 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:38:14,666 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:38:14,666 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:38:14,668 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:38:14,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:38:16,489 INFO L134 CoverageAnalysis]: Checked inductivity of 1079 backedges. 311 proven. 0 refuted. 0 times theorem prover too weak. 768 trivial. 0 not checked. [2018-10-24 14:38:16,490 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:38:16,490 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:38:16,491 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:38:16,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:38:16,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:38:16,491 INFO L87 Difference]: Start difference. First operand 49111 states and 51892 transitions. Second operand 4 states. [2018-10-24 14:38:22,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:38:22,333 INFO L93 Difference]: Finished difference Result 115495 states and 122863 transitions. [2018-10-24 14:38:22,334 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:38:22,334 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1086 [2018-10-24 14:38:22,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:38:22,406 INFO L225 Difference]: With dead ends: 115495 [2018-10-24 14:38:22,407 INFO L226 Difference]: Without dead ends: 58765 [2018-10-24 14:38:22,442 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:38:22,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58765 states. [2018-10-24 14:38:22,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58765 to 58765. [2018-10-24 14:38:22,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58765 states. [2018-10-24 14:38:22,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58765 states to 58765 states and 61377 transitions. [2018-10-24 14:38:22,948 INFO L78 Accepts]: Start accepts. Automaton has 58765 states and 61377 transitions. Word has length 1086 [2018-10-24 14:38:22,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:38:22,949 INFO L481 AbstractCegarLoop]: Abstraction has 58765 states and 61377 transitions. [2018-10-24 14:38:22,949 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:38:22,949 INFO L276 IsEmpty]: Start isEmpty. Operand 58765 states and 61377 transitions. [2018-10-24 14:38:22,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1103 [2018-10-24 14:38:22,962 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:38:22,963 INFO L375 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:38:22,963 INFO L424 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:38:22,963 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:38:22,964 INFO L82 PathProgramCache]: Analyzing trace with hash 1127306201, now seen corresponding path program 1 times [2018-10-24 14:38:22,964 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:38:22,964 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:38:22,965 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:38:22,965 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:38:22,965 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:38:23,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:38:24,404 INFO L134 CoverageAnalysis]: Checked inductivity of 969 backedges. 497 proven. 0 refuted. 0 times theorem prover too weak. 472 trivial. 0 not checked. [2018-10-24 14:38:24,405 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:38:24,405 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:38:24,406 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:38:24,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:38:24,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:38:24,406 INFO L87 Difference]: Start difference. First operand 58765 states and 61377 transitions. Second operand 4 states. [2018-10-24 14:38:29,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:38:29,622 INFO L93 Difference]: Finished difference Result 136879 states and 144101 transitions. [2018-10-24 14:38:29,622 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:38:29,622 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1102 [2018-10-24 14:38:29,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:38:29,695 INFO L225 Difference]: With dead ends: 136879 [2018-10-24 14:38:29,696 INFO L226 Difference]: Without dead ends: 77422 [2018-10-24 14:38:29,728 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:38:29,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77422 states. [2018-10-24 14:38:30,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77422 to 76731. [2018-10-24 14:38:30,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76731 states. [2018-10-24 14:38:30,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76731 states to 76731 states and 80314 transitions. [2018-10-24 14:38:30,281 INFO L78 Accepts]: Start accepts. Automaton has 76731 states and 80314 transitions. Word has length 1102 [2018-10-24 14:38:30,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:38:30,282 INFO L481 AbstractCegarLoop]: Abstraction has 76731 states and 80314 transitions. [2018-10-24 14:38:30,282 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:38:30,282 INFO L276 IsEmpty]: Start isEmpty. Operand 76731 states and 80314 transitions. [2018-10-24 14:38:30,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1140 [2018-10-24 14:38:30,294 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:38:30,295 INFO L375 BasicCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:38:30,295 INFO L424 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:38:30,295 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:38:30,296 INFO L82 PathProgramCache]: Analyzing trace with hash 1550174317, now seen corresponding path program 1 times [2018-10-24 14:38:30,296 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:38:30,296 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:38:30,297 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:38:30,297 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:38:30,297 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:38:30,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:38:31,747 WARN L179 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 11 [2018-10-24 14:38:34,816 INFO L134 CoverageAnalysis]: Checked inductivity of 1209 backedges. 465 proven. 499 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2018-10-24 14:38:34,816 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:38:34,816 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 14:38:34,825 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:38:35,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:38:35,094 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:38:36,343 INFO L134 CoverageAnalysis]: Checked inductivity of 1209 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 1165 trivial. 0 not checked. [2018-10-24 14:38:36,364 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 14:38:36,365 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [11] total 12 [2018-10-24 14:38:36,366 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-10-24 14:38:36,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-10-24 14:38:36,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2018-10-24 14:38:36,367 INFO L87 Difference]: Start difference. First operand 76731 states and 80314 transitions. Second operand 13 states. [2018-10-24 14:38:53,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:38:53,114 INFO L93 Difference]: Finished difference Result 156940 states and 164176 transitions. [2018-10-24 14:38:53,115 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-10-24 14:38:53,115 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 1139 [2018-10-24 14:38:53,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:38:53,205 INFO L225 Difference]: With dead ends: 156940 [2018-10-24 14:38:53,205 INFO L226 Difference]: Without dead ends: 76748 [2018-10-24 14:38:53,247 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 1163 GetRequests, 1139 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=198, Invalid=452, Unknown=0, NotChecked=0, Total=650 [2018-10-24 14:38:53,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76748 states. [2018-10-24 14:38:53,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76748 to 71886. [2018-10-24 14:38:53,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71886 states. [2018-10-24 14:38:53,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71886 states to 71886 states and 75038 transitions. [2018-10-24 14:38:53,916 INFO L78 Accepts]: Start accepts. Automaton has 71886 states and 75038 transitions. Word has length 1139 [2018-10-24 14:38:53,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:38:53,916 INFO L481 AbstractCegarLoop]: Abstraction has 71886 states and 75038 transitions. [2018-10-24 14:38:53,917 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-10-24 14:38:53,917 INFO L276 IsEmpty]: Start isEmpty. Operand 71886 states and 75038 transitions. [2018-10-24 14:38:53,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1156 [2018-10-24 14:38:53,932 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:38:53,932 INFO L375 BasicCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:38:53,933 INFO L424 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:38:53,933 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:38:53,933 INFO L82 PathProgramCache]: Analyzing trace with hash -823284843, now seen corresponding path program 1 times [2018-10-24 14:38:53,933 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:38:53,934 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:38:53,934 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:38:53,934 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:38:53,935 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:38:54,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:38:55,398 INFO L134 CoverageAnalysis]: Checked inductivity of 1257 backedges. 670 proven. 0 refuted. 0 times theorem prover too weak. 587 trivial. 0 not checked. [2018-10-24 14:38:55,399 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:38:55,399 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:38:55,400 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:38:55,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:38:55,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:38:55,401 INFO L87 Difference]: Start difference. First operand 71886 states and 75038 transitions. Second operand 4 states. [2018-10-24 14:39:00,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:39:00,586 INFO L93 Difference]: Finished difference Result 167954 states and 175380 transitions. [2018-10-24 14:39:00,586 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:39:00,586 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1155 [2018-10-24 14:39:00,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:39:00,699 INFO L225 Difference]: With dead ends: 167954 [2018-10-24 14:39:00,699 INFO L226 Difference]: Without dead ends: 96761 [2018-10-24 14:39:00,742 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:39:00,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96761 states. [2018-10-24 14:39:01,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96761 to 84319. [2018-10-24 14:39:01,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84319 states. [2018-10-24 14:39:01,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84319 states to 84319 states and 87593 transitions. [2018-10-24 14:39:01,807 INFO L78 Accepts]: Start accepts. Automaton has 84319 states and 87593 transitions. Word has length 1155 [2018-10-24 14:39:01,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:39:01,807 INFO L481 AbstractCegarLoop]: Abstraction has 84319 states and 87593 transitions. [2018-10-24 14:39:01,807 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:39:01,807 INFO L276 IsEmpty]: Start isEmpty. Operand 84319 states and 87593 transitions. [2018-10-24 14:39:01,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1162 [2018-10-24 14:39:01,818 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:39:01,818 INFO L375 BasicCegarLoop]: trace histogram [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, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:39:01,819 INFO L424 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:39:01,819 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:39:01,819 INFO L82 PathProgramCache]: Analyzing trace with hash 1391858788, now seen corresponding path program 1 times [2018-10-24 14:39:01,819 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:39:01,819 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:39:01,820 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:39:01,820 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:39:01,820 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:39:01,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:39:02,944 WARN L179 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 10 [2018-10-24 14:39:03,125 WARN L179 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 13 [2018-10-24 14:39:03,308 WARN L179 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 18 [2018-10-24 14:39:05,753 INFO L134 CoverageAnalysis]: Checked inductivity of 1457 backedges. 628 proven. 752 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2018-10-24 14:39:05,753 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:39:05,753 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 14:39:05,765 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:39:05,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:39:06,006 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:39:06,886 INFO L134 CoverageAnalysis]: Checked inductivity of 1457 backedges. 773 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2018-10-24 14:39:06,907 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 14:39:06,908 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [11] total 12 [2018-10-24 14:39:06,909 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-24 14:39:06,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-24 14:39:06,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2018-10-24 14:39:06,910 INFO L87 Difference]: Start difference. First operand 84319 states and 87593 transitions. Second operand 12 states. [2018-10-24 14:39:25,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:39:25,378 INFO L93 Difference]: Finished difference Result 227522 states and 236586 transitions. [2018-10-24 14:39:25,378 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-10-24 14:39:25,378 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 1161 [2018-10-24 14:39:25,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:39:25,552 INFO L225 Difference]: With dead ends: 227522 [2018-10-24 14:39:25,552 INFO L226 Difference]: Without dead ends: 143896 [2018-10-24 14:39:25,617 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 1202 GetRequests, 1173 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=228, Invalid=584, Unknown=0, NotChecked=0, Total=812 [2018-10-24 14:39:25,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143896 states. [2018-10-24 14:39:26,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143896 to 103667. [2018-10-24 14:39:26,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103667 states. [2018-10-24 14:39:26,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103667 states to 103667 states and 107121 transitions. [2018-10-24 14:39:26,995 INFO L78 Accepts]: Start accepts. Automaton has 103667 states and 107121 transitions. Word has length 1161 [2018-10-24 14:39:26,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:39:26,996 INFO L481 AbstractCegarLoop]: Abstraction has 103667 states and 107121 transitions. [2018-10-24 14:39:26,996 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-24 14:39:26,996 INFO L276 IsEmpty]: Start isEmpty. Operand 103667 states and 107121 transitions. [2018-10-24 14:39:27,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1170 [2018-10-24 14:39:27,007 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:39:27,008 INFO L375 BasicCegarLoop]: trace histogram [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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:39:27,008 INFO L424 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:39:27,009 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:39:27,009 INFO L82 PathProgramCache]: Analyzing trace with hash 1927184345, now seen corresponding path program 1 times [2018-10-24 14:39:27,009 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:39:27,009 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:39:27,010 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:39:27,010 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:39:27,011 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:39:27,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:39:27,985 WARN L179 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 11 [2018-10-24 14:39:29,043 INFO L134 CoverageAnalysis]: Checked inductivity of 1320 backedges. 419 proven. 0 refuted. 0 times theorem prover too weak. 901 trivial. 0 not checked. [2018-10-24 14:39:29,043 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:39:29,044 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:39:29,044 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:39:29,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:39:29,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:39:29,045 INFO L87 Difference]: Start difference. First operand 103667 states and 107121 transitions. Second operand 4 states. [2018-10-24 14:39:33,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:39:33,958 INFO L93 Difference]: Finished difference Result 222530 states and 230092 transitions. [2018-10-24 14:39:33,958 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:39:33,958 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1169 [2018-10-24 14:39:33,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:39:34,086 INFO L225 Difference]: With dead ends: 222530 [2018-10-24 14:39:34,086 INFO L226 Difference]: Without dead ends: 117480 [2018-10-24 14:39:34,143 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 [2018-10-24 14:39:34,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117480 states. [2018-10-24 14:39:35,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117480 to 113334. [2018-10-24 14:39:35,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113334 states. [2018-10-24 14:39:35,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113334 states to 113334 states and 116836 transitions. [2018-10-24 14:39:35,120 INFO L78 Accepts]: Start accepts. Automaton has 113334 states and 116836 transitions. Word has length 1169 [2018-10-24 14:39:35,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:39:35,121 INFO L481 AbstractCegarLoop]: Abstraction has 113334 states and 116836 transitions. [2018-10-24 14:39:35,121 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:39:35,121 INFO L276 IsEmpty]: Start isEmpty. Operand 113334 states and 116836 transitions. [2018-10-24 14:39:35,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1206 [2018-10-24 14:39:35,133 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:39:35,134 INFO L375 BasicCegarLoop]: trace histogram [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, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:39:35,134 INFO L424 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:39:35,134 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:39:35,135 INFO L82 PathProgramCache]: Analyzing trace with hash -2028653076, now seen corresponding path program 1 times [2018-10-24 14:39:35,135 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:39:35,135 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:39:35,135 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:39:35,136 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:39:35,136 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:39:35,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:39:36,089 WARN L179 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 10 [2018-10-24 14:39:39,087 INFO L134 CoverageAnalysis]: Checked inductivity of 1822 backedges. 553 proven. 1055 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2018-10-24 14:39:39,088 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:39:39,088 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 14:39:39,097 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:39:39,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:39:39,364 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:39:40,005 INFO L134 CoverageAnalysis]: Checked inductivity of 1822 backedges. 795 proven. 0 refuted. 0 times theorem prover too weak. 1027 trivial. 0 not checked. [2018-10-24 14:39:40,027 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 14:39:40,028 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [11] total 12 [2018-10-24 14:39:40,029 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-24 14:39:40,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-24 14:39:40,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-10-24 14:39:40,030 INFO L87 Difference]: Start difference. First operand 113334 states and 116836 transitions. Second operand 12 states. [2018-10-24 14:39:57,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:39:57,247 INFO L93 Difference]: Finished difference Result 264900 states and 273022 transitions. [2018-10-24 14:39:57,247 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-10-24 14:39:57,248 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 1205 [2018-10-24 14:39:57,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:39:57,454 INFO L225 Difference]: With dead ends: 264900 [2018-10-24 14:39:57,455 INFO L226 Difference]: Without dead ends: 152259 [2018-10-24 14:39:57,550 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 1243 GetRequests, 1216 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=187, Invalid=515, Unknown=0, NotChecked=0, Total=702 [2018-10-24 14:39:57,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152259 states. [2018-10-24 14:39:59,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152259 to 111952. [2018-10-24 14:39:59,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111952 states. [2018-10-24 14:39:59,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111952 states to 111952 states and 114254 transitions. [2018-10-24 14:39:59,329 INFO L78 Accepts]: Start accepts. Automaton has 111952 states and 114254 transitions. Word has length 1205 [2018-10-24 14:39:59,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:39:59,330 INFO L481 AbstractCegarLoop]: Abstraction has 111952 states and 114254 transitions. [2018-10-24 14:39:59,330 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-24 14:39:59,330 INFO L276 IsEmpty]: Start isEmpty. Operand 111952 states and 114254 transitions. [2018-10-24 14:39:59,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1264 [2018-10-24 14:39:59,346 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:39:59,347 INFO L375 BasicCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:39:59,347 INFO L424 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:39:59,348 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:39:59,348 INFO L82 PathProgramCache]: Analyzing trace with hash -1340611452, now seen corresponding path program 1 times [2018-10-24 14:39:59,348 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:39:59,348 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:39:59,349 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:39:59,349 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:39:59,349 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:39:59,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:40:01,173 INFO L134 CoverageAnalysis]: Checked inductivity of 1568 backedges. 873 proven. 117 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2018-10-24 14:40:01,174 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:40:01,174 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 14:40:01,182 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:40:01,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:40:01,457 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:40:02,817 INFO L134 CoverageAnalysis]: Checked inductivity of 1568 backedges. 873 proven. 117 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2018-10-24 14:40:02,840 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-24 14:40:02,841 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2018-10-24 14:40:02,843 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 14:40:02,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 14:40:02,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-24 14:40:02,844 INFO L87 Difference]: Start difference. First operand 111952 states and 114254 transitions. Second operand 6 states. [2018-10-24 14:40:15,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:40:15,558 INFO L93 Difference]: Finished difference Result 252924 states and 258518 transitions. [2018-10-24 14:40:15,559 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 14:40:15,559 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 1263 [2018-10-24 14:40:15,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:40:15,690 INFO L225 Difference]: With dead ends: 252924 [2018-10-24 14:40:15,690 INFO L226 Difference]: Without dead ends: 140974 [2018-10-24 14:40:15,720 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 1271 GetRequests, 1264 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2018-10-24 14:40:15,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140974 states. [2018-10-24 14:40:16,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140974 to 127845. [2018-10-24 14:40:16,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127845 states. [2018-10-24 14:40:17,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127845 states to 127845 states and 130352 transitions. [2018-10-24 14:40:17,005 INFO L78 Accepts]: Start accepts. Automaton has 127845 states and 130352 transitions. Word has length 1263 [2018-10-24 14:40:17,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:40:17,006 INFO L481 AbstractCegarLoop]: Abstraction has 127845 states and 130352 transitions. [2018-10-24 14:40:17,006 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 14:40:17,006 INFO L276 IsEmpty]: Start isEmpty. Operand 127845 states and 130352 transitions. [2018-10-24 14:40:17,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1379 [2018-10-24 14:40:17,028 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:40:17,029 INFO L375 BasicCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:40:17,029 INFO L424 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:40:17,029 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:40:17,030 INFO L82 PathProgramCache]: Analyzing trace with hash -817422425, now seen corresponding path program 1 times [2018-10-24 14:40:17,030 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:40:17,030 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:40:17,030 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:40:17,031 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:40:17,031 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:40:17,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:40:19,061 INFO L134 CoverageAnalysis]: Checked inductivity of 1795 backedges. 1109 proven. 108 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2018-10-24 14:40:19,062 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:40:19,062 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 14:40:19,070 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:40:19,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:40:19,363 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:40:20,692 INFO L134 CoverageAnalysis]: Checked inductivity of 1795 backedges. 885 proven. 9 refuted. 0 times theorem prover too weak. 901 trivial. 0 not checked. [2018-10-24 14:40:20,715 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-24 14:40:20,715 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 7 [2018-10-24 14:40:20,717 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 14:40:20,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 14:40:20,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-10-24 14:40:20,717 INFO L87 Difference]: Start difference. First operand 127845 states and 130352 transitions. Second operand 7 states. Received shutdown request... [2018-10-24 14:40:27,919 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-24 14:40:27,920 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 14:40:27,927 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 14:40:27,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:40:27 BoogieIcfgContainer [2018-10-24 14:40:27,927 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 14:40:27,928 INFO L168 Benchmark]: Toolchain (without parser) took 228346.00 ms. Allocated memory was 1.5 GB in the beginning and 3.9 GB in the end (delta: 2.4 GB). Free memory was 1.4 GB in the beginning and 1.6 GB in the end (delta: -152.4 MB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. [2018-10-24 14:40:27,929 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 14:40:27,929 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1839.59 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. [2018-10-24 14:40:27,930 INFO L168 Benchmark]: Boogie Procedure Inliner took 509.62 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 744.5 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -908.8 MB). Peak memory consumption was 45.0 MB. Max. memory is 7.1 GB. [2018-10-24 14:40:27,931 INFO L168 Benchmark]: Boogie Preprocessor took 232.98 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 7.1 GB. [2018-10-24 14:40:27,932 INFO L168 Benchmark]: RCFGBuilder took 7760.77 ms. Allocated memory is still 2.3 GB. Free memory was 2.1 GB in the beginning and 1.6 GB in the end (delta: 525.7 MB). Peak memory consumption was 525.7 MB. Max. memory is 7.1 GB. [2018-10-24 14:40:27,933 INFO L168 Benchmark]: TraceAbstraction took 217997.89 ms. Allocated memory was 2.3 GB in the beginning and 3.9 GB in the end (delta: 1.6 GB). Free memory was 1.6 GB in the beginning and 1.6 GB in the end (delta: 55.0 MB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. [2018-10-24 14:40:27,938 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 1839.59 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 509.62 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 744.5 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -908.8 MB). Peak memory consumption was 45.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 232.98 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 7760.77 ms. Allocated memory is still 2.3 GB. Free memory was 2.1 GB in the beginning and 1.6 GB in the end (delta: 525.7 MB). Peak memory consumption was 525.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 217997.89 ms. Allocated memory was 2.3 GB in the beginning and 3.9 GB in the end (delta: 1.6 GB). Free memory was 1.6 GB in the beginning and 1.6 GB in the end (delta: 55.0 MB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 39]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 39). Cancelled while BasicCegarLoop was constructing difference of abstraction (127845states) and FLOYD_HOARE automaton (currently 6 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (2865 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 758 locations, 1 error locations. TIMEOUT Result, 217.9s OverallTime, 19 OverallIterations, 8 TraceHistogramMax, 170.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 11142 SDtfs, 52891 SDslu, 2085 SDs, 0 SdLazy, 118303 SolverSat, 12469 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 133.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6712 GetRequests, 6578 SyntacticMatches, 15 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 454 ImplicationChecksByTransitivity, 7.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=127845occurred in iteration=18, 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: 10.8s AutomataMinimizationTime, 18 MinimizatonAttempts, 127590 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.5s SsaConstructionTime, 2.2s SatisfiabilityAnalysisTime, 17.5s InterpolantComputationTime, 20382 NumberOfCodeBlocks, 20382 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 20357 ConstructedInterpolants, 10 QuantifiedInterpolants, 65887451 SizeOfPredicates, 3 NumberOfNonLiveVariables, 7609 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 25 InterpolantComputations, 17 PerfectInterpolantSequences, 19749/22410 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown