java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem13_label38_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-23 20:19:49,582 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-23 20:19:49,584 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-23 20:19:49,600 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-23 20:19:49,601 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-23 20:19:49,602 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-23 20:19:49,603 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-23 20:19:49,605 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-23 20:19:49,606 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-23 20:19:49,607 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-23 20:19:49,608 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-23 20:19:49,608 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-23 20:19:49,609 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-23 20:19:49,610 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-23 20:19:49,611 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-23 20:19:49,612 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-23 20:19:49,613 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-23 20:19:49,615 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-23 20:19:49,617 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-23 20:19:49,618 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-23 20:19:49,619 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-23 20:19:49,620 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-23 20:19:49,623 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-23 20:19:49,623 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-23 20:19:49,623 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-23 20:19:49,627 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-23 20:19:49,628 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-23 20:19:49,631 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-23 20:19:49,632 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-23 20:19:49,633 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-23 20:19:49,633 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-23 20:19:49,634 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-23 20:19:49,639 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 [2018-10-23 20:19:49,668 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-23 20:19:49,669 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-23 20:19:49,670 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-23 20:19:49,671 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-23 20:19:49,671 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-23 20:19:49,671 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-23 20:19:49,672 INFO L133 SettingsManager]: * Use SBE=true [2018-10-23 20:19:49,672 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-23 20:19:49,672 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-23 20:19:49,672 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-23 20:19:49,672 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-23 20:19:49,673 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-23 20:19:49,674 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-23 20:19:49,674 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-23 20:19:49,674 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-23 20:19:49,674 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-23 20:19:49,675 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-23 20:19:49,675 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-23 20:19:49,675 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-23 20:19:49,675 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 20:19:49,675 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-23 20:19:49,675 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-23 20:19:49,677 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-23 20:19:49,677 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-23 20:19:49,677 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-23 20:19:49,678 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-23 20:19:49,678 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-23 20:19:49,678 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-23 20:19:49,730 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-23 20:19:49,747 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-23 20:19:49,752 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-23 20:19:49,753 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-23 20:19:49,754 INFO L276 PluginConnector]: CDTParser initialized [2018-10-23 20:19:49,755 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label38_true-unreach-call.c [2018-10-23 20:19:49,817 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/53c2f7e55/d29f2626327a4b4ca482546ac8af0cf5/FLAG0cfa7a513 [2018-10-23 20:19:50,644 INFO L298 CDTParser]: Found 1 translation units. [2018-10-23 20:19:50,645 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label38_true-unreach-call.c [2018-10-23 20:19:50,683 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/53c2f7e55/d29f2626327a4b4ca482546ac8af0cf5/FLAG0cfa7a513 [2018-10-23 20:19:50,705 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/53c2f7e55/d29f2626327a4b4ca482546ac8af0cf5 [2018-10-23 20:19:50,717 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-23 20:19:50,718 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-23 20:19:50,720 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-23 20:19:50,720 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-23 20:19:50,724 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-23 20:19:50,725 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:19:50" (1/1) ... [2018-10-23 20:19:50,728 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31151419 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:50, skipping insertion in model container [2018-10-23 20:19:50,728 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:19:50" (1/1) ... [2018-10-23 20:19:50,739 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-23 20:19:50,917 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-23 20:19:52,266 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 20:19:52,270 INFO L189 MainTranslator]: Completed pre-run [2018-10-23 20:19:52,998 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 20:19:53,037 INFO L193 MainTranslator]: Completed translation [2018-10-23 20:19:53,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:53 WrapperNode [2018-10-23 20:19:53,037 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-23 20:19:53,038 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-23 20:19:53,041 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-23 20:19:53,041 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-23 20:19:53,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:53" (1/1) ... [2018-10-23 20:19:53,126 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:53" (1/1) ... [2018-10-23 20:19:53,900 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-23 20:19:53,901 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-23 20:19:53,901 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-23 20:19:53,901 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-23 20:19:53,913 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:53" (1/1) ... [2018-10-23 20:19:53,913 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:53" (1/1) ... [2018-10-23 20:19:53,977 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:53" (1/1) ... [2018-10-23 20:19:53,979 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:53" (1/1) ... [2018-10-23 20:19:54,211 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:53" (1/1) ... [2018-10-23 20:19:54,264 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:53" (1/1) ... [2018-10-23 20:19:54,321 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:53" (1/1) ... [2018-10-23 20:19:54,383 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-23 20:19:54,383 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-23 20:19:54,383 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-23 20:19:54,384 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-23 20:19:54,385 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:53" (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 [2018-10-23 20:19:54,455 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-23 20:19:54,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-23 20:19:54,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-23 20:20:07,697 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-23 20:20:07,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:20:07 BoogieIcfgContainer [2018-10-23 20:20:07,698 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-23 20:20:07,699 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-23 20:20:07,699 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-23 20:20:07,702 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-23 20:20:07,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 08:19:50" (1/3) ... [2018-10-23 20:20:07,704 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b2fb46f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:20:07, skipping insertion in model container [2018-10-23 20:20:07,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:53" (2/3) ... [2018-10-23 20:20:07,704 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b2fb46f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:20:07, skipping insertion in model container [2018-10-23 20:20:07,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:20:07" (3/3) ... [2018-10-23 20:20:07,708 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label38_true-unreach-call.c [2018-10-23 20:20:07,718 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-23 20:20:07,730 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-23 20:20:07,748 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-23 20:20:07,798 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-23 20:20:07,799 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-23 20:20:07,799 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-23 20:20:07,799 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-23 20:20:07,800 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-23 20:20:07,800 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-23 20:20:07,800 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-23 20:20:07,800 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-23 20:20:07,800 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-23 20:20:07,843 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states. [2018-10-23 20:20:07,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-10-23 20:20:07,853 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:20:07,854 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 20:20:07,856 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:20:07,861 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:20:07,862 INFO L82 PathProgramCache]: Analyzing trace with hash -1074201598, now seen corresponding path program 1 times [2018-10-23 20:20:07,864 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:20:07,864 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:20:07,917 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:20:07,917 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:20:07,917 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:20:07,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:20:08,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 20:20:08,265 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 20:20:08,265 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 20:20:08,270 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 20:20:08,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 20:20:08,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 20:20:08,289 INFO L87 Difference]: Start difference. First operand 1099 states. Second operand 4 states. [2018-10-23 20:20:25,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:20:25,322 INFO L93 Difference]: Finished difference Result 3866 states and 7262 transitions. [2018-10-23 20:20:25,323 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 20:20:25,324 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 60 [2018-10-23 20:20:25,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:20:25,372 INFO L225 Difference]: With dead ends: 3866 [2018-10-23 20:20:25,372 INFO L226 Difference]: Without dead ends: 2760 [2018-10-23 20:20:25,383 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 [2018-10-23 20:20:25,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2760 states. [2018-10-23 20:20:25,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2760 to 2741. [2018-10-23 20:20:25,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2741 states. [2018-10-23 20:20:25,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2741 states to 2741 states and 4467 transitions. [2018-10-23 20:20:25,549 INFO L78 Accepts]: Start accepts. Automaton has 2741 states and 4467 transitions. Word has length 60 [2018-10-23 20:20:25,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 20:20:25,550 INFO L481 AbstractCegarLoop]: Abstraction has 2741 states and 4467 transitions. [2018-10-23 20:20:25,550 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 20:20:25,550 INFO L276 IsEmpty]: Start isEmpty. Operand 2741 states and 4467 transitions. [2018-10-23 20:20:25,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2018-10-23 20:20:25,563 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:20:25,564 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 20:20:25,564 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:20:25,564 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:20:25,564 INFO L82 PathProgramCache]: Analyzing trace with hash 1464782830, now seen corresponding path program 1 times [2018-10-23 20:20:25,564 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:20:25,565 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:20:25,566 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:20:25,566 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:20:25,566 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:20:25,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:20:26,955 WARN L179 SmtUtils]: Spent 939.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 27 [2018-10-23 20:20:27,305 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 20:20:27,306 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 20:20:27,306 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 20:20:27,308 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-23 20:20:27,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-23 20:20:27,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-23 20:20:27,309 INFO L87 Difference]: Start difference. First operand 2741 states and 4467 transitions. Second operand 5 states. [2018-10-23 20:20:41,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:20:41,367 INFO L93 Difference]: Finished difference Result 9437 states and 14864 transitions. [2018-10-23 20:20:41,367 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-23 20:20:41,368 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 133 [2018-10-23 20:20:41,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:20:41,402 INFO L225 Difference]: With dead ends: 9437 [2018-10-23 20:20:41,402 INFO L226 Difference]: Without dead ends: 6698 [2018-10-23 20:20:41,407 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-10-23 20:20:41,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6698 states. [2018-10-23 20:20:41,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6698 to 6697. [2018-10-23 20:20:41,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6697 states. [2018-10-23 20:20:41,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6697 states to 6697 states and 9386 transitions. [2018-10-23 20:20:41,542 INFO L78 Accepts]: Start accepts. Automaton has 6697 states and 9386 transitions. Word has length 133 [2018-10-23 20:20:41,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 20:20:41,543 INFO L481 AbstractCegarLoop]: Abstraction has 6697 states and 9386 transitions. [2018-10-23 20:20:41,543 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-23 20:20:41,543 INFO L276 IsEmpty]: Start isEmpty. Operand 6697 states and 9386 transitions. [2018-10-23 20:20:41,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2018-10-23 20:20:41,561 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:20:41,561 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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] [2018-10-23 20:20:41,562 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:20:41,562 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:20:41,562 INFO L82 PathProgramCache]: Analyzing trace with hash -491007045, now seen corresponding path program 1 times [2018-10-23 20:20:41,562 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:20:41,563 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:20:41,564 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:20:41,564 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:20:41,564 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:20:41,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:20:41,893 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2018-10-23 20:20:41,893 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 20:20:41,894 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-23 20:20:41,895 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 20:20:41,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 20:20:41,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 20:20:41,896 INFO L87 Difference]: Start difference. First operand 6697 states and 9386 transitions. Second operand 3 states. [2018-10-23 20:20:48,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:20:48,137 INFO L93 Difference]: Finished difference Result 17338 states and 25183 transitions. [2018-10-23 20:20:48,138 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 20:20:48,138 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 244 [2018-10-23 20:20:48,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:20:48,194 INFO L225 Difference]: With dead ends: 17338 [2018-10-23 20:20:48,194 INFO L226 Difference]: Without dead ends: 11431 [2018-10-23 20:20:48,205 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 20:20:48,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11431 states. [2018-10-23 20:20:48,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11431 to 11430. [2018-10-23 20:20:48,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11430 states. [2018-10-23 20:20:48,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11430 states to 11430 states and 15069 transitions. [2018-10-23 20:20:48,399 INFO L78 Accepts]: Start accepts. Automaton has 11430 states and 15069 transitions. Word has length 244 [2018-10-23 20:20:48,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 20:20:48,399 INFO L481 AbstractCegarLoop]: Abstraction has 11430 states and 15069 transitions. [2018-10-23 20:20:48,399 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 20:20:48,400 INFO L276 IsEmpty]: Start isEmpty. Operand 11430 states and 15069 transitions. [2018-10-23 20:20:48,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2018-10-23 20:20:48,407 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:20:48,407 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 20:20:48,407 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:20:48,408 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:20:48,409 INFO L82 PathProgramCache]: Analyzing trace with hash -294067219, now seen corresponding path program 1 times [2018-10-23 20:20:48,409 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:20:48,409 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:20:48,410 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:20:48,410 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:20:48,410 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:20:48,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:20:48,904 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 119 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 20:20:48,904 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 20:20:48,905 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 [2018-10-23 20:20:48,923 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:20:49,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:20:49,049 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 20:20:49,409 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 211 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 20:20:49,441 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 20:20:49,442 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2018-10-23 20:20:49,443 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-23 20:20:49,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-23 20:20:49,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-23 20:20:49,443 INFO L87 Difference]: Start difference. First operand 11430 states and 15069 transitions. Second operand 6 states. [2018-10-23 20:21:27,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:21:27,169 INFO L93 Difference]: Finished difference Result 64102 states and 87604 transitions. [2018-10-23 20:21:27,170 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-23 20:21:27,170 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 261 [2018-10-23 20:21:27,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:21:27,296 INFO L225 Difference]: With dead ends: 64102 [2018-10-23 20:21:27,296 INFO L226 Difference]: Without dead ends: 53462 [2018-10-23 20:21:27,315 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2018-10-23 20:21:27,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53462 states. [2018-10-23 20:21:28,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53462 to 53290. [2018-10-23 20:21:28,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53290 states. [2018-10-23 20:21:28,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53290 states to 53290 states and 67389 transitions. [2018-10-23 20:21:28,308 INFO L78 Accepts]: Start accepts. Automaton has 53290 states and 67389 transitions. Word has length 261 [2018-10-23 20:21:28,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 20:21:28,308 INFO L481 AbstractCegarLoop]: Abstraction has 53290 states and 67389 transitions. [2018-10-23 20:21:28,309 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-23 20:21:28,309 INFO L276 IsEmpty]: Start isEmpty. Operand 53290 states and 67389 transitions. [2018-10-23 20:21:28,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2018-10-23 20:21:28,317 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:21:28,318 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-23 20:21:28,318 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:21:28,318 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:21:28,318 INFO L82 PathProgramCache]: Analyzing trace with hash 806633940, now seen corresponding path program 1 times [2018-10-23 20:21:28,319 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:21:28,319 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:21:28,320 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:21:28,320 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:21:28,320 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:21:28,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:21:28,638 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2018-10-23 20:21:28,639 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 20:21:28,639 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 20:21:28,640 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 20:21:28,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 20:21:28,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 20:21:28,640 INFO L87 Difference]: Start difference. First operand 53290 states and 67389 transitions. Second operand 4 states. [2018-10-23 20:21:40,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:21:40,245 INFO L93 Difference]: Finished difference Result 112854 states and 144390 transitions. [2018-10-23 20:21:40,246 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 20:21:40,246 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 278 [2018-10-23 20:21:40,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:21:40,408 INFO L225 Difference]: With dead ends: 112854 [2018-10-23 20:21:40,408 INFO L226 Difference]: Without dead ends: 60354 [2018-10-23 20:21:40,458 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 20:21:40,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60354 states. [2018-10-23 20:21:41,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60354 to 60352. [2018-10-23 20:21:41,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60352 states. [2018-10-23 20:21:41,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60352 states to 60352 states and 71537 transitions. [2018-10-23 20:21:41,220 INFO L78 Accepts]: Start accepts. Automaton has 60352 states and 71537 transitions. Word has length 278 [2018-10-23 20:21:41,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 20:21:41,220 INFO L481 AbstractCegarLoop]: Abstraction has 60352 states and 71537 transitions. [2018-10-23 20:21:41,221 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 20:21:41,221 INFO L276 IsEmpty]: Start isEmpty. Operand 60352 states and 71537 transitions. [2018-10-23 20:21:41,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2018-10-23 20:21:41,240 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:21:41,241 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-23 20:21:41,241 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:21:41,241 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:21:41,242 INFO L82 PathProgramCache]: Analyzing trace with hash -1451551655, now seen corresponding path program 1 times [2018-10-23 20:21:41,242 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:21:41,242 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:21:41,243 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:21:41,243 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:21:41,243 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:21:41,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:21:41,728 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 240 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 20:21:41,729 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 20:21:41,729 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 20:21:41,729 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 20:21:41,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 20:21:41,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 20:21:41,730 INFO L87 Difference]: Start difference. First operand 60352 states and 71537 transitions. Second operand 4 states. [2018-10-23 20:21:53,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:21:53,021 INFO L93 Difference]: Finished difference Result 128581 states and 152727 transitions. [2018-10-23 20:21:53,026 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 20:21:53,026 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 353 [2018-10-23 20:21:53,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:21:53,139 INFO L225 Difference]: With dead ends: 128581 [2018-10-23 20:21:53,139 INFO L226 Difference]: Without dead ends: 69019 [2018-10-23 20:21:53,184 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 20:21:53,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69019 states. [2018-10-23 20:21:53,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69019 to 65859. [2018-10-23 20:21:53,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65859 states. [2018-10-23 20:21:53,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65859 states to 65859 states and 77238 transitions. [2018-10-23 20:21:53,923 INFO L78 Accepts]: Start accepts. Automaton has 65859 states and 77238 transitions. Word has length 353 [2018-10-23 20:21:53,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 20:21:53,924 INFO L481 AbstractCegarLoop]: Abstraction has 65859 states and 77238 transitions. [2018-10-23 20:21:53,924 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 20:21:53,924 INFO L276 IsEmpty]: Start isEmpty. Operand 65859 states and 77238 transitions. [2018-10-23 20:21:53,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2018-10-23 20:21:53,946 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:21:53,947 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-23 20:21:53,947 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:21:53,947 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:21:53,948 INFO L82 PathProgramCache]: Analyzing trace with hash -1381951338, now seen corresponding path program 1 times [2018-10-23 20:21:53,948 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:21:53,948 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:21:53,949 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:21:53,949 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:21:53,949 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:21:54,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:21:54,564 WARN L179 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-10-23 20:21:54,975 WARN L179 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 27 [2018-10-23 20:21:55,266 INFO L134 CoverageAnalysis]: Checked inductivity of 448 backedges. 377 proven. 8 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2018-10-23 20:21:55,267 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 20:21:55,267 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 [2018-10-23 20:21:55,278 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:21:55,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:21:55,391 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 20:21:55,680 INFO L134 CoverageAnalysis]: Checked inductivity of 448 backedges. 358 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2018-10-23 20:21:55,713 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 20:21:55,713 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2018-10-23 20:21:55,714 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-23 20:21:55,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-23 20:21:55,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-10-23 20:21:55,715 INFO L87 Difference]: Start difference. First operand 65859 states and 77238 transitions. Second operand 8 states. [2018-10-23 20:22:23,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:22:23,973 INFO L93 Difference]: Finished difference Result 187680 states and 220020 transitions. [2018-10-23 20:22:23,973 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-23 20:22:23,974 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 414 [2018-10-23 20:22:23,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:22:24,095 INFO L225 Difference]: With dead ends: 187680 [2018-10-23 20:22:24,095 INFO L226 Difference]: Without dead ends: 109970 [2018-10-23 20:22:24,138 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 433 GetRequests, 418 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=60, Invalid=96, Unknown=0, NotChecked=0, Total=156 [2018-10-23 20:22:24,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109970 states. [2018-10-23 20:22:25,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109970 to 102068. [2018-10-23 20:22:25,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102068 states. [2018-10-23 20:22:25,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102068 states to 102068 states and 114444 transitions. [2018-10-23 20:22:25,153 INFO L78 Accepts]: Start accepts. Automaton has 102068 states and 114444 transitions. Word has length 414 [2018-10-23 20:22:25,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 20:22:25,154 INFO L481 AbstractCegarLoop]: Abstraction has 102068 states and 114444 transitions. [2018-10-23 20:22:25,154 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-23 20:22:25,154 INFO L276 IsEmpty]: Start isEmpty. Operand 102068 states and 114444 transitions. [2018-10-23 20:22:25,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 528 [2018-10-23 20:22:25,187 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:22:25,188 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 20:22:25,188 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:22:25,188 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:22:25,188 INFO L82 PathProgramCache]: Analyzing trace with hash -469366303, now seen corresponding path program 1 times [2018-10-23 20:22:25,189 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:22:25,189 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:22:25,190 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:22:25,190 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:22:25,190 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:22:25,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:22:25,504 INFO L134 CoverageAnalysis]: Checked inductivity of 467 backedges. 325 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2018-10-23 20:22:25,504 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 20:22:25,505 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-23 20:22:25,505 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 20:22:25,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 20:22:25,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 20:22:25,506 INFO L87 Difference]: Start difference. First operand 102068 states and 114444 transitions. Second operand 3 states. [2018-10-23 20:22:35,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:22:35,933 INFO L93 Difference]: Finished difference Result 204120 states and 229166 transitions. [2018-10-23 20:22:35,933 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 20:22:35,933 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 527 [2018-10-23 20:22:35,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:22:36,028 INFO L225 Difference]: With dead ends: 204120 [2018-10-23 20:22:36,029 INFO L226 Difference]: Without dead ends: 102840 [2018-10-23 20:22:36,075 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 [2018-10-23 20:22:36,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102840 states. [2018-10-23 20:22:36,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102840 to 101264. [2018-10-23 20:22:36,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101264 states. [2018-10-23 20:22:36,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101264 states to 101264 states and 113471 transitions. [2018-10-23 20:22:36,927 INFO L78 Accepts]: Start accepts. Automaton has 101264 states and 113471 transitions. Word has length 527 [2018-10-23 20:22:36,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 20:22:36,927 INFO L481 AbstractCegarLoop]: Abstraction has 101264 states and 113471 transitions. [2018-10-23 20:22:36,927 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 20:22:36,928 INFO L276 IsEmpty]: Start isEmpty. Operand 101264 states and 113471 transitions. [2018-10-23 20:22:36,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 533 [2018-10-23 20:22:36,945 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:22:36,946 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 20:22:36,946 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:22:36,946 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:22:36,946 INFO L82 PathProgramCache]: Analyzing trace with hash -259507655, now seen corresponding path program 1 times [2018-10-23 20:22:36,947 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:22:36,947 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:22:36,947 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:22:36,947 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:22:36,948 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:22:37,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:22:37,584 WARN L179 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 8 [2018-10-23 20:22:37,813 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 390 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2018-10-23 20:22:37,813 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 20:22:37,813 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 20:22:37,814 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 20:22:37,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 20:22:37,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 20:22:37,815 INFO L87 Difference]: Start difference. First operand 101264 states and 113471 transitions. Second operand 4 states. [2018-10-23 20:22:48,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:22:48,188 INFO L93 Difference]: Finished difference Result 209654 states and 235920 transitions. [2018-10-23 20:22:48,188 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 20:22:48,188 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 532 [2018-10-23 20:22:48,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:22:48,309 INFO L225 Difference]: With dead ends: 209654 [2018-10-23 20:22:48,310 INFO L226 Difference]: Without dead ends: 109180 [2018-10-23 20:22:48,365 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 20:22:48,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109180 states. [2018-10-23 20:22:49,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109180 to 104410. [2018-10-23 20:22:49,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104410 states. [2018-10-23 20:22:50,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104410 states to 104410 states and 113654 transitions. [2018-10-23 20:22:50,691 INFO L78 Accepts]: Start accepts. Automaton has 104410 states and 113654 transitions. Word has length 532 [2018-10-23 20:22:50,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 20:22:50,692 INFO L481 AbstractCegarLoop]: Abstraction has 104410 states and 113654 transitions. [2018-10-23 20:22:50,692 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 20:22:50,692 INFO L276 IsEmpty]: Start isEmpty. Operand 104410 states and 113654 transitions. [2018-10-23 20:22:50,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 542 [2018-10-23 20:22:50,710 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:22:50,710 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 20:22:50,711 INFO L424 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:22:50,711 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:22:50,711 INFO L82 PathProgramCache]: Analyzing trace with hash -34342412, now seen corresponding path program 1 times [2018-10-23 20:22:50,711 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:22:50,711 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:22:50,712 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:22:50,712 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:22:50,712 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:22:50,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:22:51,276 INFO L134 CoverageAnalysis]: Checked inductivity of 499 backedges. 341 proven. 100 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2018-10-23 20:22:51,276 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 20:22:51,276 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 [2018-10-23 20:22:51,284 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:22:51,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:22:51,422 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 20:22:51,651 INFO L134 CoverageAnalysis]: Checked inductivity of 499 backedges. 441 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2018-10-23 20:22:51,672 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 20:22:51,673 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2018-10-23 20:22:51,674 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-23 20:22:51,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-23 20:22:51,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-10-23 20:22:51,674 INFO L87 Difference]: Start difference. First operand 104410 states and 113654 transitions. Second operand 7 states. [2018-10-23 20:23:39,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:23:39,348 INFO L93 Difference]: Finished difference Result 418658 states and 454307 transitions. [2018-10-23 20:23:39,348 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-10-23 20:23:39,348 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 541 [2018-10-23 20:23:39,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:23:39,669 INFO L225 Difference]: With dead ends: 418658 [2018-10-23 20:23:39,669 INFO L226 Difference]: Without dead ends: 294514 [2018-10-23 20:23:39,735 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 553 GetRequests, 539 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2018-10-23 20:23:39,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294514 states. [2018-10-23 20:23:42,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294514 to 272339. [2018-10-23 20:23:42,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272339 states. [2018-10-23 20:23:42,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272339 states to 272339 states and 286665 transitions. [2018-10-23 20:23:42,889 INFO L78 Accepts]: Start accepts. Automaton has 272339 states and 286665 transitions. Word has length 541 [2018-10-23 20:23:42,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 20:23:42,889 INFO L481 AbstractCegarLoop]: Abstraction has 272339 states and 286665 transitions. [2018-10-23 20:23:42,889 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-23 20:23:42,889 INFO L276 IsEmpty]: Start isEmpty. Operand 272339 states and 286665 transitions. [2018-10-23 20:23:43,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 788 [2018-10-23 20:23:43,566 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:23:43,567 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-23 20:23:43,567 INFO L424 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:23:43,567 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:23:43,568 INFO L82 PathProgramCache]: Analyzing trace with hash -686563998, now seen corresponding path program 1 times [2018-10-23 20:23:43,568 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:23:43,568 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:23:43,569 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:23:43,569 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:23:43,569 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:23:43,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:23:44,234 INFO L134 CoverageAnalysis]: Checked inductivity of 844 backedges. 715 proven. 0 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2018-10-23 20:23:44,234 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 20:23:44,234 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 20:23:44,235 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 20:23:44,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 20:23:44,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 20:23:44,236 INFO L87 Difference]: Start difference. First operand 272339 states and 286665 transitions. Second operand 3 states. Received shutdown request... [2018-10-23 20:23:44,691 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 20:23:44,691 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-23 20:23:44,696 WARN L205 ceAbstractionStarter]: Timeout [2018-10-23 20:23:44,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 08:23:44 BoogieIcfgContainer [2018-10-23 20:23:44,697 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-23 20:23:44,698 INFO L168 Benchmark]: Toolchain (without parser) took 233980.29 ms. Allocated memory was 1.5 GB in the beginning and 3.6 GB in the end (delta: 2.1 GB). Free memory was 1.4 GB in the beginning and 996.9 MB in the end (delta: 417.3 MB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. [2018-10-23 20:23:44,699 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-23 20:23:44,699 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2318.35 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. [2018-10-23 20:23:44,700 INFO L168 Benchmark]: Boogie Procedure Inliner took 862.12 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 833.1 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 73.0 MB. Max. memory is 7.1 GB. [2018-10-23 20:23:44,701 INFO L168 Benchmark]: Boogie Preprocessor took 482.09 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 81.1 MB). Peak memory consumption was 81.1 MB. Max. memory is 7.1 GB. [2018-10-23 20:23:44,702 INFO L168 Benchmark]: RCFGBuilder took 13314.80 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 233.3 MB). Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 26.9 MB). Peak memory consumption was 589.2 MB. Max. memory is 7.1 GB. [2018-10-23 20:23:44,703 INFO L168 Benchmark]: TraceAbstraction took 216997.79 ms. Allocated memory was 2.6 GB in the beginning and 3.6 GB in the end (delta: 1.0 GB). Free memory was 2.1 GB in the beginning and 996.9 MB in the end (delta: 1.1 GB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2018-10-23 20:23:44,708 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2318.35 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 862.12 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 833.1 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 73.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 482.09 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 81.1 MB). Peak memory consumption was 81.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 13314.80 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 233.3 MB). Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 26.9 MB). Peak memory consumption was 589.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 216997.79 ms. Allocated memory was 2.6 GB in the beginning and 3.6 GB in the end (delta: 1.0 GB). Free memory was 2.1 GB in the beginning and 996.9 MB in the end (delta: 1.1 GB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 189]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 189). Cancelled while BasicCegarLoop was constructing difference of abstraction (272339states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (488 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1099 locations, 1 error locations. TIMEOUT Result, 216.9s OverallTime, 11 OverallIterations, 5 TraceHistogramMax, 196.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 8389 SDtfs, 47189 SDslu, 3654 SDs, 0 SdLazy, 75061 SolverSat, 18742 SolverUnsat, 9 SolverUnknown, 0 SolverNotchecked, 165.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1285 GetRequests, 1231 SyntacticMatches, 7 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 4.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=272339occurred in iteration=10, 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: 10.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 39778 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 6.2s InterpolantComputationTime, 5346 NumberOfCodeBlocks, 5346 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 5332 ConstructedInterpolants, 0 QuantifiedInterpolants, 6463713 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1558 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 14 InterpolantComputations, 11 PerfectInterpolantSequences, 4612/4812 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown