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_label47_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-26 21:29:23,838 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 21:29:23,845 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 21:29:23,862 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 21:29:23,863 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 21:29:23,864 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 21:29:23,865 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 21:29:23,867 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 21:29:23,870 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 21:29:23,871 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 21:29:23,873 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 21:29:23,873 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 21:29:23,874 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 21:29:23,876 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 21:29:23,886 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 21:29:23,887 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 21:29:23,887 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 21:29:23,892 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 21:29:23,895 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 21:29:23,899 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 21:29:23,900 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 21:29:23,901 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 21:29:23,906 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-26 21:29:23,920 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-10-26 21:29:23,949 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 21:29:23,950 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 21:29:23,951 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 21:29:23,951 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-26 21:29:23,952 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-26 21:29:23,952 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-26 21:29:23,952 INFO L133 SettingsManager]: * Use SBE=true [2018-10-26 21:29:23,952 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 21:29:23,952 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 21:29:23,953 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 21:29:23,953 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 21:29:23,953 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 21:29:23,953 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 21:29:23,953 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 21:29:23,954 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 21:29:23,955 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 21:29:23,955 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 21:29:23,955 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 21:29:23,955 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 21:29:23,956 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 21:29:23,957 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 21:29:23,957 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 21:29:23,957 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 21:29:23,957 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-26 21:29:23,958 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 21:29:23,958 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 21:29:23,958 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-26 21:29:23,958 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-26 21:29:24,019 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 21:29:24,032 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 21:29:24,036 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 21:29:24,038 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 21:29:24,038 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 21:29:24,039 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label47_true-unreach-call.c [2018-10-26 21:29:24,104 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/62c103979/9f2b3b02acc34ae7b796bcb50b92f63e/FLAGdedad859b [2018-10-26 21:29:24,998 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 21:29:24,999 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label47_true-unreach-call.c [2018-10-26 21:29:25,034 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/62c103979/9f2b3b02acc34ae7b796bcb50b92f63e/FLAGdedad859b [2018-10-26 21:29:25,057 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/62c103979/9f2b3b02acc34ae7b796bcb50b92f63e [2018-10-26 21:29:25,072 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 21:29:25,074 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-26 21:29:25,075 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 21:29:25,075 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 21:29:25,079 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 21:29:25,081 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 09:29:25" (1/1) ... [2018-10-26 21:29:25,084 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@379aca2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:29:25, skipping insertion in model container [2018-10-26 21:29:25,084 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 09:29:25" (1/1) ... [2018-10-26 21:29:25,095 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 21:29:25,299 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 21:29:26,860 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 21:29:26,869 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 21:29:27,643 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 21:29:27,690 INFO L193 MainTranslator]: Completed translation [2018-10-26 21:29:27,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:29:27 WrapperNode [2018-10-26 21:29:27,691 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 21:29:27,692 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 21:29:27,692 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 21:29:27,692 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 21:29:27,704 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:29:27" (1/1) ... [2018-10-26 21:29:27,802 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:29:27" (1/1) ... [2018-10-26 21:29:28,556 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 21:29:28,556 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 21:29:28,556 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 21:29:28,556 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 21:29:28,569 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:29:27" (1/1) ... [2018-10-26 21:29:28,569 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:29:27" (1/1) ... [2018-10-26 21:29:28,660 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:29:27" (1/1) ... [2018-10-26 21:29:28,661 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:29:27" (1/1) ... [2018-10-26 21:29:28,812 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:29:27" (1/1) ... [2018-10-26 21:29:28,866 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:29:27" (1/1) ... [2018-10-26 21:29:29,000 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:29:27" (1/1) ... [2018-10-26 21:29:29,145 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 21:29:29,146 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 21:29:29,146 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 21:29:29,146 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 21:29:29,147 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:29:27" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 21:29:29,220 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-26 21:29:29,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 21:29:29,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 21:29:44,442 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 21:29:44,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 09:29:44 BoogieIcfgContainer [2018-10-26 21:29:44,443 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 21:29:44,444 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 21:29:44,445 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 21:29:44,448 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 21:29:44,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 09:29:25" (1/3) ... [2018-10-26 21:29:44,449 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bfb4c9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 09:29:44, skipping insertion in model container [2018-10-26 21:29:44,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:29:27" (2/3) ... [2018-10-26 21:29:44,450 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bfb4c9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 09:29:44, skipping insertion in model container [2018-10-26 21:29:44,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 09:29:44" (3/3) ... [2018-10-26 21:29:44,452 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label47_true-unreach-call.c [2018-10-26 21:29:44,462 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 21:29:44,472 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 21:29:44,490 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 21:29:44,535 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-26 21:29:44,536 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 21:29:44,536 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 21:29:44,536 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 21:29:44,536 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 21:29:44,537 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 21:29:44,537 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 21:29:44,537 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 21:29:44,537 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 21:29:44,580 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states. [2018-10-26 21:29:44,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-10-26 21:29:44,595 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:29:44,597 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] [2018-10-26 21:29:44,602 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:29:44,608 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:29:44,609 INFO L82 PathProgramCache]: Analyzing trace with hash -1934902334, now seen corresponding path program 1 times [2018-10-26 21:29:44,611 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:29:44,612 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:29:44,669 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:29:44,669 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:29:44,669 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:29:44,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:29:45,263 WARN L179 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-10-26 21:29:45,624 WARN L179 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 27 [2018-10-26 21:29:45,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 21:29:45,846 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:29:45,846 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-26 21:29:45,851 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-26 21:29:45,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-26 21:29:45,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-26 21:29:45,870 INFO L87 Difference]: Start difference. First operand 1099 states. Second operand 5 states. [2018-10-26 21:30:05,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:30:05,987 INFO L93 Difference]: Finished difference Result 4624 states and 8784 transitions. [2018-10-26 21:30:05,987 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-26 21:30:05,989 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 44 [2018-10-26 21:30:05,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:30:06,051 INFO L225 Difference]: With dead ends: 4624 [2018-10-26 21:30:06,051 INFO L226 Difference]: Without dead ends: 3515 [2018-10-26 21:30:06,061 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-10-26 21:30:06,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3515 states. [2018-10-26 21:30:06,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3515 to 3514. [2018-10-26 21:30:06,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3514 states. [2018-10-26 21:30:06,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3514 states to 3514 states and 5233 transitions. [2018-10-26 21:30:06,272 INFO L78 Accepts]: Start accepts. Automaton has 3514 states and 5233 transitions. Word has length 44 [2018-10-26 21:30:06,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:30:06,273 INFO L481 AbstractCegarLoop]: Abstraction has 3514 states and 5233 transitions. [2018-10-26 21:30:06,273 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-26 21:30:06,273 INFO L276 IsEmpty]: Start isEmpty. Operand 3514 states and 5233 transitions. [2018-10-26 21:30:06,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2018-10-26 21:30:06,286 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:30:06,287 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:30:06,287 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:30:06,287 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:30:06,288 INFO L82 PathProgramCache]: Analyzing trace with hash -1885445779, now seen corresponding path program 1 times [2018-10-26 21:30:06,288 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:30:06,288 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:30:06,289 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:30:06,290 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:30:06,290 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:30:06,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:30:06,681 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2018-10-26 21:30:06,682 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 21:30:06,682 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-26 21:30:06,693 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:30:06,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:30:06,771 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 21:30:06,914 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2018-10-26 21:30:06,947 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-26 21:30:06,947 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2018-10-26 21:30:06,949 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-26 21:30:06,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-26 21:30:06,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-26 21:30:06,952 INFO L87 Difference]: Start difference. First operand 3514 states and 5233 transitions. Second operand 5 states. [2018-10-26 21:30:20,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:30:20,931 INFO L93 Difference]: Finished difference Result 9454 states and 15300 transitions. [2018-10-26 21:30:20,933 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 21:30:20,933 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 170 [2018-10-26 21:30:20,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:30:20,967 INFO L225 Difference]: With dead ends: 9454 [2018-10-26 21:30:20,968 INFO L226 Difference]: Without dead ends: 6730 [2018-10-26 21:30:20,973 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 169 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-26 21:30:20,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6730 states. [2018-10-26 21:30:21,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6730 to 6699. [2018-10-26 21:30:21,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6699 states. [2018-10-26 21:30:21,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6699 states to 6699 states and 9386 transitions. [2018-10-26 21:30:21,103 INFO L78 Accepts]: Start accepts. Automaton has 6699 states and 9386 transitions. Word has length 170 [2018-10-26 21:30:21,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:30:21,104 INFO L481 AbstractCegarLoop]: Abstraction has 6699 states and 9386 transitions. [2018-10-26 21:30:21,105 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-26 21:30:21,105 INFO L276 IsEmpty]: Start isEmpty. Operand 6699 states and 9386 transitions. [2018-10-26 21:30:21,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2018-10-26 21:30:21,111 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:30:21,112 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:30:21,112 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:30:21,112 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:30:21,112 INFO L82 PathProgramCache]: Analyzing trace with hash -811056578, now seen corresponding path program 1 times [2018-10-26 21:30:21,113 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:30:21,113 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:30:21,114 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:30:21,114 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:30:21,114 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:30:21,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:30:21,404 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 21:30:21,404 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:30:21,405 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-26 21:30:21,405 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 21:30:21,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 21:30:21,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 21:30:21,406 INFO L87 Difference]: Start difference. First operand 6699 states and 9386 transitions. Second operand 4 states. [2018-10-26 21:30:34,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:30:34,385 INFO L93 Difference]: Finished difference Result 16584 states and 24141 transitions. [2018-10-26 21:30:34,395 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 21:30:34,395 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 220 [2018-10-26 21:30:34,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:30:34,453 INFO L225 Difference]: With dead ends: 16584 [2018-10-26 21:30:34,454 INFO L226 Difference]: Without dead ends: 10675 [2018-10-26 21:30:34,464 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 21:30:34,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10675 states. [2018-10-26 21:30:34,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10675 to 9861. [2018-10-26 21:30:34,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9861 states. [2018-10-26 21:30:34,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9861 states to 9861 states and 13467 transitions. [2018-10-26 21:30:34,656 INFO L78 Accepts]: Start accepts. Automaton has 9861 states and 13467 transitions. Word has length 220 [2018-10-26 21:30:34,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:30:34,657 INFO L481 AbstractCegarLoop]: Abstraction has 9861 states and 13467 transitions. [2018-10-26 21:30:34,657 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 21:30:34,658 INFO L276 IsEmpty]: Start isEmpty. Operand 9861 states and 13467 transitions. [2018-10-26 21:30:34,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2018-10-26 21:30:34,665 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:30:34,665 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-26 21:30:34,665 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:30:34,666 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:30:34,666 INFO L82 PathProgramCache]: Analyzing trace with hash 136812175, now seen corresponding path program 1 times [2018-10-26 21:30:34,666 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:30:34,666 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:30:34,667 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:30:34,667 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:30:34,667 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:30:34,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:30:35,034 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2018-10-26 21:30:35,034 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:30:35,034 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-26 21:30:35,035 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 21:30:35,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 21:30:35,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 21:30:35,037 INFO L87 Difference]: Start difference. First operand 9861 states and 13467 transitions. Second operand 4 states. [2018-10-26 21:30:45,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:30:45,315 INFO L93 Difference]: Finished difference Result 33111 states and 46110 transitions. [2018-10-26 21:30:45,316 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 21:30:45,316 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 271 [2018-10-26 21:30:45,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:30:45,400 INFO L225 Difference]: With dead ends: 33111 [2018-10-26 21:30:45,401 INFO L226 Difference]: Without dead ends: 24040 [2018-10-26 21:30:45,417 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 21:30:45,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24040 states. [2018-10-26 21:30:45,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24040 to 24039. [2018-10-26 21:30:45,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24039 states. [2018-10-26 21:30:45,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24039 states to 24039 states and 30779 transitions. [2018-10-26 21:30:45,815 INFO L78 Accepts]: Start accepts. Automaton has 24039 states and 30779 transitions. Word has length 271 [2018-10-26 21:30:45,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:30:45,816 INFO L481 AbstractCegarLoop]: Abstraction has 24039 states and 30779 transitions. [2018-10-26 21:30:45,816 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 21:30:45,816 INFO L276 IsEmpty]: Start isEmpty. Operand 24039 states and 30779 transitions. [2018-10-26 21:30:45,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2018-10-26 21:30:45,826 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:30:45,826 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-26 21:30:45,827 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:30:45,827 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:30:45,827 INFO L82 PathProgramCache]: Analyzing trace with hash 1185450294, now seen corresponding path program 1 times [2018-10-26 21:30:45,827 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:30:45,827 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:30:45,828 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:30:45,828 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:30:45,829 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:30:45,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:30:46,378 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2018-10-26 21:30:46,379 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:30:46,379 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 21:30:46,379 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 21:30:46,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 21:30:46,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 21:30:46,381 INFO L87 Difference]: Start difference. First operand 24039 states and 30779 transitions. Second operand 4 states. [2018-10-26 21:30:55,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:30:55,878 INFO L93 Difference]: Finished difference Result 46480 states and 59892 transitions. [2018-10-26 21:30:55,878 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 21:30:55,879 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 317 [2018-10-26 21:30:55,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:30:55,925 INFO L225 Difference]: With dead ends: 46480 [2018-10-26 21:30:55,925 INFO L226 Difference]: Without dead ends: 23231 [2018-10-26 21:30:55,951 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 21:30:55,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23231 states. [2018-10-26 21:30:56,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23231 to 23230. [2018-10-26 21:30:56,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23230 states. [2018-10-26 21:30:56,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23230 states to 23230 states and 26714 transitions. [2018-10-26 21:30:56,239 INFO L78 Accepts]: Start accepts. Automaton has 23230 states and 26714 transitions. Word has length 317 [2018-10-26 21:30:56,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:30:56,240 INFO L481 AbstractCegarLoop]: Abstraction has 23230 states and 26714 transitions. [2018-10-26 21:30:56,240 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 21:30:56,241 INFO L276 IsEmpty]: Start isEmpty. Operand 23230 states and 26714 transitions. [2018-10-26 21:30:56,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2018-10-26 21:30:56,251 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:30:56,251 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:30:56,251 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:30:56,252 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:30:56,252 INFO L82 PathProgramCache]: Analyzing trace with hash -957584690, now seen corresponding path program 1 times [2018-10-26 21:30:56,252 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:30:56,252 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:30:56,253 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:30:56,253 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:30:56,253 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:30:56,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:30:56,539 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 292 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2018-10-26 21:30:56,539 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:30:56,540 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 21:30:56,540 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-26 21:30:56,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-26 21:30:56,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 21:30:56,541 INFO L87 Difference]: Start difference. First operand 23230 states and 26714 transitions. Second operand 3 states. [2018-10-26 21:31:03,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:31:03,972 INFO L93 Difference]: Finished difference Result 45657 states and 52641 transitions. [2018-10-26 21:31:03,972 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-26 21:31:03,973 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 341 [2018-10-26 21:31:03,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:31:04,003 INFO L225 Difference]: With dead ends: 45657 [2018-10-26 21:31:04,003 INFO L226 Difference]: Without dead ends: 23217 [2018-10-26 21:31:04,025 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 21:31:04,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23217 states. [2018-10-26 21:31:04,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23217 to 23216. [2018-10-26 21:31:04,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23216 states. [2018-10-26 21:31:04,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23216 states to 23216 states and 25558 transitions. [2018-10-26 21:31:04,245 INFO L78 Accepts]: Start accepts. Automaton has 23216 states and 25558 transitions. Word has length 341 [2018-10-26 21:31:04,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:31:04,246 INFO L481 AbstractCegarLoop]: Abstraction has 23216 states and 25558 transitions. [2018-10-26 21:31:04,246 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-26 21:31:04,246 INFO L276 IsEmpty]: Start isEmpty. Operand 23216 states and 25558 transitions. [2018-10-26 21:31:04,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2018-10-26 21:31:04,260 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:31:04,260 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:31:04,260 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:31:04,260 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:31:04,261 INFO L82 PathProgramCache]: Analyzing trace with hash -195832860, now seen corresponding path program 1 times [2018-10-26 21:31:04,261 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:31:04,261 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:31:04,262 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:31:04,262 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:31:04,262 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:31:04,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:31:04,761 INFO L134 CoverageAnalysis]: Checked inductivity of 665 backedges. 409 proven. 4 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2018-10-26 21:31:04,761 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 21:31:04,762 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-26 21:31:04,784 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:31:04,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:31:04,927 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 21:31:05,065 INFO L134 CoverageAnalysis]: Checked inductivity of 665 backedges. 504 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2018-10-26 21:31:05,099 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-26 21:31:05,100 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2018-10-26 21:31:05,101 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 21:31:05,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 21:31:05,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 21:31:05,105 INFO L87 Difference]: Start difference. First operand 23216 states and 25558 transitions. Second operand 4 states. [2018-10-26 21:31:15,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:31:15,176 INFO L93 Difference]: Finished difference Result 81140 states and 90096 transitions. [2018-10-26 21:31:15,176 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 21:31:15,176 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 403 [2018-10-26 21:31:15,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:31:15,246 INFO L225 Difference]: With dead ends: 81140 [2018-10-26 21:31:15,246 INFO L226 Difference]: Without dead ends: 57119 [2018-10-26 21:31:15,266 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 403 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 21:31:15,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57119 states. [2018-10-26 21:31:15,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57119 to 38171. [2018-10-26 21:31:15,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38171 states. [2018-10-26 21:31:15,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38171 states to 38171 states and 41317 transitions. [2018-10-26 21:31:15,737 INFO L78 Accepts]: Start accepts. Automaton has 38171 states and 41317 transitions. Word has length 403 [2018-10-26 21:31:15,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:31:15,738 INFO L481 AbstractCegarLoop]: Abstraction has 38171 states and 41317 transitions. [2018-10-26 21:31:15,738 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 21:31:15,738 INFO L276 IsEmpty]: Start isEmpty. Operand 38171 states and 41317 transitions. [2018-10-26 21:31:15,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 451 [2018-10-26 21:31:15,758 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:31:15,759 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-26 21:31:15,759 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:31:15,760 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:31:15,760 INFO L82 PathProgramCache]: Analyzing trace with hash 265828620, now seen corresponding path program 1 times [2018-10-26 21:31:15,760 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:31:15,760 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:31:15,761 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:31:15,761 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:31:15,761 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:31:15,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:31:16,307 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2018-10-26 21:31:16,307 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:31:16,307 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-26 21:31:16,308 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-26 21:31:16,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-26 21:31:16,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-26 21:31:16,309 INFO L87 Difference]: Start difference. First operand 38171 states and 41317 transitions. Second operand 5 states. [2018-10-26 21:31:28,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:31:28,574 INFO L93 Difference]: Finished difference Result 124467 states and 135963 transitions. [2018-10-26 21:31:28,574 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-26 21:31:28,574 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 450 [2018-10-26 21:31:28,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:31:28,661 INFO L225 Difference]: With dead ends: 124467 [2018-10-26 21:31:28,662 INFO L226 Difference]: Without dead ends: 87086 [2018-10-26 21:31:28,690 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-26 21:31:28,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87086 states. [2018-10-26 21:31:29,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87086 to 84709. [2018-10-26 21:31:29,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84709 states. [2018-10-26 21:31:29,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84709 states to 84709 states and 91030 transitions. [2018-10-26 21:31:29,603 INFO L78 Accepts]: Start accepts. Automaton has 84709 states and 91030 transitions. Word has length 450 [2018-10-26 21:31:29,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:31:29,604 INFO L481 AbstractCegarLoop]: Abstraction has 84709 states and 91030 transitions. [2018-10-26 21:31:29,604 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-26 21:31:29,604 INFO L276 IsEmpty]: Start isEmpty. Operand 84709 states and 91030 transitions. [2018-10-26 21:31:29,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 507 [2018-10-26 21:31:29,625 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:31:29,626 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2018-10-26 21:31:29,626 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:31:29,626 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:31:29,627 INFO L82 PathProgramCache]: Analyzing trace with hash 2087992935, now seen corresponding path program 1 times [2018-10-26 21:31:29,627 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:31:29,627 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:31:29,628 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:31:29,628 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:31:29,628 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:31:29,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:31:30,120 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 546 proven. 0 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2018-10-26 21:31:30,121 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:31:30,121 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-26 21:31:30,122 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-26 21:31:30,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-26 21:31:30,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-26 21:31:30,122 INFO L87 Difference]: Start difference. First operand 84709 states and 91030 transitions. Second operand 5 states. [2018-10-26 21:31:51,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:31:51,165 INFO L93 Difference]: Finished difference Result 294973 states and 316445 transitions. [2018-10-26 21:31:51,166 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-26 21:31:51,166 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 506 [2018-10-26 21:31:51,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:31:51,392 INFO L225 Difference]: With dead ends: 294973 [2018-10-26 21:31:51,393 INFO L226 Difference]: Without dead ends: 211054 [2018-10-26 21:31:51,462 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-26 21:31:51,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211054 states. [2018-10-26 21:31:53,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211054 to 195902. [2018-10-26 21:31:53,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195902 states. [2018-10-26 21:31:53,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195902 states to 195902 states and 208258 transitions. [2018-10-26 21:31:53,869 INFO L78 Accepts]: Start accepts. Automaton has 195902 states and 208258 transitions. Word has length 506 [2018-10-26 21:31:53,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:31:53,870 INFO L481 AbstractCegarLoop]: Abstraction has 195902 states and 208258 transitions. [2018-10-26 21:31:53,870 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-26 21:31:53,870 INFO L276 IsEmpty]: Start isEmpty. Operand 195902 states and 208258 transitions. [2018-10-26 21:31:53,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 636 [2018-10-26 21:31:53,910 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:31:53,911 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 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, 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] [2018-10-26 21:31:53,911 INFO L424 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:31:53,911 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:31:53,911 INFO L82 PathProgramCache]: Analyzing trace with hash -795647631, now seen corresponding path program 1 times [2018-10-26 21:31:53,912 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:31:53,912 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:31:53,912 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:31:53,913 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:31:53,913 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:31:53,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:31:54,710 INFO L134 CoverageAnalysis]: Checked inductivity of 976 backedges. 276 proven. 464 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2018-10-26 21:31:54,711 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 21:31:54,711 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-26 21:31:54,718 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:31:54,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:31:54,879 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 21:31:55,653 INFO L134 CoverageAnalysis]: Checked inductivity of 976 backedges. 640 proven. 0 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2018-10-26 21:31:56,690 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-26 21:31:56,691 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2018-10-26 21:31:56,692 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-26 21:31:56,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-26 21:31:56,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-10-26 21:31:56,693 INFO L87 Difference]: Start difference. First operand 195902 states and 208258 transitions. Second operand 8 states. [2018-10-26 21:32:40,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:32:40,708 INFO L93 Difference]: Finished difference Result 575661 states and 611654 transitions. [2018-10-26 21:32:40,709 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-10-26 21:32:40,709 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 635 [2018-10-26 21:32:40,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:32:41,143 INFO L225 Difference]: With dead ends: 575661 [2018-10-26 21:32:41,143 INFO L226 Difference]: Without dead ends: 358424 [2018-10-26 21:32:41,265 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 650 GetRequests, 633 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2018-10-26 21:32:41,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358424 states. [2018-10-26 21:32:45,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358424 to 315706. [2018-10-26 21:32:45,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 315706 states. [2018-10-26 21:32:45,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315706 states to 315706 states and 332454 transitions. [2018-10-26 21:32:45,625 INFO L78 Accepts]: Start accepts. Automaton has 315706 states and 332454 transitions. Word has length 635 [2018-10-26 21:32:45,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:32:45,626 INFO L481 AbstractCegarLoop]: Abstraction has 315706 states and 332454 transitions. [2018-10-26 21:32:45,626 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-26 21:32:45,626 INFO L276 IsEmpty]: Start isEmpty. Operand 315706 states and 332454 transitions. [2018-10-26 21:32:45,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 811 [2018-10-26 21:32:45,675 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:32:45,677 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-26 21:32:45,677 INFO L424 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:32:45,677 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:32:45,678 INFO L82 PathProgramCache]: Analyzing trace with hash -781821835, now seen corresponding path program 1 times [2018-10-26 21:32:45,678 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:32:45,678 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:32:45,678 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:32:45,679 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:32:45,679 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:32:45,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:32:48,168 INFO L134 CoverageAnalysis]: Checked inductivity of 1437 backedges. 1040 proven. 0 refuted. 0 times theorem prover too weak. 397 trivial. 0 not checked. [2018-10-26 21:32:48,168 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:32:48,168 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-26 21:32:48,169 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 21:32:48,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 21:32:48,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 21:32:48,169 INFO L87 Difference]: Start difference. First operand 315706 states and 332454 transitions. Second operand 4 states. [2018-10-26 21:33:00,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:33:00,244 INFO L93 Difference]: Finished difference Result 598291 states and 629970 transitions. [2018-10-26 21:33:00,245 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 21:33:00,245 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 810 [2018-10-26 21:33:00,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:33:00,570 INFO L225 Difference]: With dead ends: 598291 [2018-10-26 21:33:00,570 INFO L226 Difference]: Without dead ends: 283375 [2018-10-26 21:33:00,696 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 21:33:00,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283375 states. Received shutdown request... [2018-10-26 21:33:14,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283375 to 262864. [2018-10-26 21:33:14,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262864 states. [2018-10-26 21:33:14,083 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-26 21:33:14,090 WARN L205 ceAbstractionStarter]: Timeout [2018-10-26 21:33:14,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 09:33:14 BoogieIcfgContainer [2018-10-26 21:33:14,090 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 21:33:14,091 INFO L168 Benchmark]: Toolchain (without parser) took 229018.83 ms. Allocated memory was 1.5 GB in the beginning and 4.8 GB in the end (delta: 3.3 GB). Free memory was 1.4 GB in the beginning and 3.5 GB in the end (delta: -2.0 GB). Peak memory consumption was 2.9 GB. Max. memory is 7.1 GB. [2018-10-26 21:33:14,093 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. [2018-10-26 21:33:14,093 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2616.03 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: 232.5 MB). Peak memory consumption was 232.5 MB. Max. memory is 7.1 GB. [2018-10-26 21:33:14,094 INFO L168 Benchmark]: Boogie Procedure Inliner took 864.17 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 829.9 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 83.7 MB. Max. memory is 7.1 GB. [2018-10-26 21:33:14,095 INFO L168 Benchmark]: Boogie Preprocessor took 589.23 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: 69.4 MB). Peak memory consumption was 69.4 MB. Max. memory is 7.1 GB. [2018-10-26 21:33:14,096 INFO L168 Benchmark]: RCFGBuilder took 15297.80 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 237.0 MB). Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 37.1 MB). Peak memory consumption was 605.0 MB. Max. memory is 7.1 GB. [2018-10-26 21:33:14,097 INFO L168 Benchmark]: TraceAbstraction took 209645.93 ms. Allocated memory was 2.6 GB in the beginning and 4.8 GB in the end (delta: 2.2 GB). Free memory was 2.1 GB in the beginning and 3.5 GB in the end (delta: -1.4 GB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. [2018-10-26 21:33:14,102 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 2616.03 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: 232.5 MB). Peak memory consumption was 232.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 864.17 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 829.9 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 83.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 589.23 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: 69.4 MB). Peak memory consumption was 69.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 15297.80 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 237.0 MB). Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 37.1 MB). Peak memory consumption was 605.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 209645.93 ms. Allocated memory was 2.6 GB in the beginning and 4.8 GB in the end (delta: 2.2 GB). Free memory was 2.1 GB in the beginning and 3.5 GB in the end (delta: -1.4 GB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 141]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 141). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructedinput type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1099 locations, 1 error locations. TIMEOUT Result, 209.5s OverallTime, 11 OverallIterations, 6 TraceHistogramMax, 175.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 9231 SDtfs, 39518 SDslu, 3586 SDs, 0 SdLazy, 68556 SolverSat, 20294 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 145.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1264 GetRequests, 1217 SyntacticMatches, 6 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=315706occurred 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: 22.9s AutomataMinimizationTime, 11 MinimizatonAttempts, 80044 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 5.3s InterpolantComputationTime, 5375 NumberOfCodeBlocks, 5375 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 5361 ConstructedInterpolants, 90 QuantifiedInterpolants, 6020668 SizeOfPredicates, 2 NumberOfNonLiveVariables, 1613 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 14 InterpolantComputations, 11 PerfectInterpolantSequences, 6113/6585 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown