java -Xss4m -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem18_label28_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-71425fa [2018-07-22 14:58:44,915 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-22 14:58:44,917 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-22 14:58:44,932 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-22 14:58:44,932 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-22 14:58:44,933 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-22 14:58:44,935 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-22 14:58:44,938 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-22 14:58:44,939 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-22 14:58:44,940 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-22 14:58:44,941 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-22 14:58:44,942 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-22 14:58:44,942 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-22 14:58:44,943 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-22 14:58:44,944 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-22 14:58:44,946 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-22 14:58:44,947 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-22 14:58:44,949 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-22 14:58:44,951 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-22 14:58:44,952 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-22 14:58:44,953 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-22 14:58:44,954 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-22 14:58:44,957 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-22 14:58:44,957 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-22 14:58:44,957 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-22 14:58:44,958 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-22 14:58:44,959 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-22 14:58:44,960 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-22 14:58:44,960 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-22 14:58:44,961 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-22 14:58:44,962 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-22 14:58:44,962 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-07-22 14:58:44,965 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-07-22 14:58:44,980 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-22 14:58:44,980 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-22 14:58:44,981 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-22 14:58:44,981 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-07-22 14:58:44,981 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-07-22 14:58:44,982 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-07-22 14:58:44,982 INFO L133 SettingsManager]: * Use SBE=true [2018-07-22 14:58:44,982 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-22 14:58:44,982 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-22 14:58:44,982 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-22 14:58:44,983 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-22 14:58:44,983 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-22 14:58:44,983 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-22 14:58:44,983 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-22 14:58:44,983 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-22 14:58:44,984 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-22 14:58:44,984 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-22 14:58:44,984 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-22 14:58:44,984 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-22 14:58:44,984 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-22 14:58:44,985 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-22 14:58:44,985 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-07-22 14:58:44,985 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-22 14:58:44,985 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-22 14:58:44,985 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-07-22 14:58:44,985 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-22 14:58:44,986 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-22 14:58:44,986 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-22 14:58:44,986 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-22 14:58:45,025 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-22 14:58:45,044 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-22 14:58:45,052 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-22 14:58:45,053 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-22 14:58:45,053 INFO L276 PluginConnector]: CDTParser initialized [2018-07-22 14:58:45,054 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label28_true-unreach-call.c [2018-07-22 14:58:45,407 INFO L220 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/a8b5b2d4c/0978ea88961e44f89c4d94a26b5ccd00/FLAG1dc658b38 [2018-07-22 14:58:45,873 INFO L276 CDTParser]: Found 1 translation units. [2018-07-22 14:58:45,874 INFO L158 CDTParser]: Scanning /storage/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label28_true-unreach-call.c [2018-07-22 14:58:45,924 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/a8b5b2d4c/0978ea88961e44f89c4d94a26b5ccd00/FLAG1dc658b38 [2018-07-22 14:58:45,946 INFO L332 CDTParser]: Successfully deleted /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/a8b5b2d4c/0978ea88961e44f89c4d94a26b5ccd00 [2018-07-22 14:58:45,957 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-22 14:58:45,964 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-22 14:58:45,968 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-22 14:58:45,968 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-22 14:58:45,975 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-22 14:58:45,976 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 02:58:45" (1/1) ... [2018-07-22 14:58:45,979 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4424207d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:58:45, skipping insertion in model container [2018-07-22 14:58:45,979 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 02:58:45" (1/1) ... [2018-07-22 14:58:46,333 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-22 14:58:47,308 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-22 14:58:47,351 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-22 14:58:47,943 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-22 14:58:48,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:58:48 WrapperNode [2018-07-22 14:58:48,106 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-22 14:58:48,108 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-22 14:58:48,109 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-22 14:58:48,109 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-22 14:58:48,121 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:58:48" (1/1) ... [2018-07-22 14:58:48,205 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:58:48" (1/1) ... [2018-07-22 14:58:48,502 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-22 14:58:48,502 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-22 14:58:48,502 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-22 14:58:48,503 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-22 14:58:48,513 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:58:48" (1/1) ... [2018-07-22 14:58:48,513 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:58:48" (1/1) ... [2018-07-22 14:58:48,545 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:58:48" (1/1) ... [2018-07-22 14:58:48,545 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:58:48" (1/1) ... [2018-07-22 14:58:48,663 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:58:48" (1/1) ... [2018-07-22 14:58:49,319 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:58:48" (1/1) ... [2018-07-22 14:58:49,347 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:58:48" (1/1) ... [2018-07-22 14:58:49,372 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-22 14:58:49,372 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-22 14:58:49,372 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-22 14:58:49,373 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-22 14:58:49,375 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:58:48" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-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 [2018-07-22 14:58:49,443 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-07-22 14:58:49,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-22 14:58:49,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-22 14:58:56,791 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-22 14:58:56,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:58:56 BoogieIcfgContainer [2018-07-22 14:58:56,791 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-22 14:58:56,792 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-22 14:58:56,792 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-22 14:58:56,795 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-22 14:58:56,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 02:58:45" (1/3) ... [2018-07-22 14:58:56,797 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48bd2d0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 02:58:56, skipping insertion in model container [2018-07-22 14:58:56,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:58:48" (2/3) ... [2018-07-22 14:58:56,797 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48bd2d0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 02:58:56, skipping insertion in model container [2018-07-22 14:58:56,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:58:56" (3/3) ... [2018-07-22 14:58:56,800 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label28_true-unreach-call.c [2018-07-22 14:58:56,807 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-22 14:58:56,817 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-22 14:58:56,878 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-22 14:58:56,879 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-22 14:58:56,879 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-22 14:58:56,879 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-22 14:58:56,879 INFO L376 AbstractCegarLoop]: Backedges is TWOTRACK [2018-07-22 14:58:56,879 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-22 14:58:56,880 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-22 14:58:56,880 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-22 14:58:56,880 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-22 14:58:56,925 INFO L276 IsEmpty]: Start isEmpty. Operand 758 states. [2018-07-22 14:58:56,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-07-22 14:58:56,934 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 14:58:56,935 INFO L358 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, 1, 1, 1, 1, 1] [2018-07-22 14:58:56,935 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 14:58:56,940 INFO L82 PathProgramCache]: Analyzing trace with hash -2101344302, now seen corresponding path program 1 times [2018-07-22 14:58:56,941 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 14:58:56,942 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 14:58:56,996 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:58:56,996 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:58:56,996 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:58:57,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:58:57,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-22 14:58:57,469 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 14:58:57,469 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-22 14:58:57,472 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 14:58:57,487 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 14:58:57,488 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 14:58:57,491 INFO L87 Difference]: Start difference. First operand 758 states. Second operand 4 states. [2018-07-22 14:59:05,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 14:59:05,496 INFO L93 Difference]: Finished difference Result 2918 states and 5666 transitions. [2018-07-22 14:59:05,496 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 14:59:05,497 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 65 [2018-07-22 14:59:05,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 14:59:05,536 INFO L225 Difference]: With dead ends: 2918 [2018-07-22 14:59:05,537 INFO L226 Difference]: Without dead ends: 2153 [2018-07-22 14:59:05,545 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 14:59:05,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2153 states. [2018-07-22 14:59:05,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2153 to 1446. [2018-07-22 14:59:05,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1446 states. [2018-07-22 14:59:05,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1446 states to 1446 states and 2350 transitions. [2018-07-22 14:59:05,696 INFO L78 Accepts]: Start accepts. Automaton has 1446 states and 2350 transitions. Word has length 65 [2018-07-22 14:59:05,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 14:59:05,696 INFO L471 AbstractCegarLoop]: Abstraction has 1446 states and 2350 transitions. [2018-07-22 14:59:05,697 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 14:59:05,697 INFO L276 IsEmpty]: Start isEmpty. Operand 1446 states and 2350 transitions. [2018-07-22 14:59:05,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2018-07-22 14:59:05,705 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 14:59:05,706 INFO L358 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 14:59:05,706 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 14:59:05,706 INFO L82 PathProgramCache]: Analyzing trace with hash 184192353, now seen corresponding path program 1 times [2018-07-22 14:59:05,706 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 14:59:05,706 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 14:59:05,712 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:59:05,712 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:59:05,712 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:59:05,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:59:05,938 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-22 14:59:05,939 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 14:59:05,939 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-22 14:59:05,941 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 14:59:05,941 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 14:59:05,941 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 14:59:05,941 INFO L87 Difference]: Start difference. First operand 1446 states and 2350 transitions. Second operand 4 states. [2018-07-22 14:59:12,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 14:59:12,038 INFO L93 Difference]: Finished difference Result 4272 states and 6985 transitions. [2018-07-22 14:59:12,042 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-22 14:59:12,042 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 131 [2018-07-22 14:59:12,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 14:59:12,057 INFO L225 Difference]: With dead ends: 4272 [2018-07-22 14:59:12,057 INFO L226 Difference]: Without dead ends: 2828 [2018-07-22 14:59:12,060 INFO L578 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 [2018-07-22 14:59:12,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2828 states. [2018-07-22 14:59:12,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2828 to 2828. [2018-07-22 14:59:12,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2828 states. [2018-07-22 14:59:12,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2828 states to 2828 states and 3947 transitions. [2018-07-22 14:59:12,138 INFO L78 Accepts]: Start accepts. Automaton has 2828 states and 3947 transitions. Word has length 131 [2018-07-22 14:59:12,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 14:59:12,139 INFO L471 AbstractCegarLoop]: Abstraction has 2828 states and 3947 transitions. [2018-07-22 14:59:12,139 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 14:59:12,139 INFO L276 IsEmpty]: Start isEmpty. Operand 2828 states and 3947 transitions. [2018-07-22 14:59:12,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2018-07-22 14:59:12,153 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 14:59:12,153 INFO L358 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, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 14:59:12,153 INFO L414 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 14:59:12,158 INFO L82 PathProgramCache]: Analyzing trace with hash -998654470, now seen corresponding path program 1 times [2018-07-22 14:59:12,158 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 14:59:12,158 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 14:59:12,159 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:59:12,160 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:59:12,160 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:59:12,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:59:12,873 WARN L169 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 11 [2018-07-22 14:59:13,010 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2018-07-22 14:59:13,010 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 14:59:13,010 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-22 14:59:13,011 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-22 14:59:13,011 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-22 14:59:13,011 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-07-22 14:59:13,012 INFO L87 Difference]: Start difference. First operand 2828 states and 3947 transitions. Second operand 5 states. [2018-07-22 14:59:18,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 14:59:18,184 INFO L93 Difference]: Finished difference Result 9800 states and 13250 transitions. [2018-07-22 14:59:18,214 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-22 14:59:18,215 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 250 [2018-07-22 14:59:18,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 14:59:18,250 INFO L225 Difference]: With dead ends: 9800 [2018-07-22 14:59:18,250 INFO L226 Difference]: Without dead ends: 6974 [2018-07-22 14:59:18,255 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-07-22 14:59:18,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6974 states. [2018-07-22 14:59:18,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6974 to 6283. [2018-07-22 14:59:18,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6283 states. [2018-07-22 14:59:18,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6283 states to 6283 states and 7637 transitions. [2018-07-22 14:59:18,491 INFO L78 Accepts]: Start accepts. Automaton has 6283 states and 7637 transitions. Word has length 250 [2018-07-22 14:59:18,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 14:59:18,492 INFO L471 AbstractCegarLoop]: Abstraction has 6283 states and 7637 transitions. [2018-07-22 14:59:18,492 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-22 14:59:18,492 INFO L276 IsEmpty]: Start isEmpty. Operand 6283 states and 7637 transitions. [2018-07-22 14:59:18,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2018-07-22 14:59:18,503 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 14:59:18,504 INFO L358 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, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 14:59:18,504 INFO L414 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 14:59:18,504 INFO L82 PathProgramCache]: Analyzing trace with hash 2041060513, now seen corresponding path program 1 times [2018-07-22 14:59:18,504 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 14:59:18,505 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 14:59:18,506 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:59:18,506 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:59:18,506 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:59:18,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:59:19,026 WARN L169 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 7 [2018-07-22 14:59:19,210 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 345 proven. 4 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2018-07-22 14:59:19,210 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-22 14:59:19,211 INFO L219 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-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 [2018-07-22 14:59:19,218 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:59:19,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:59:19,371 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-22 14:59:19,684 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 319 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2018-07-22 14:59:19,704 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-22 14:59:19,705 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2018-07-22 14:59:19,706 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-22 14:59:19,706 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-22 14:59:19,706 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-07-22 14:59:19,706 INFO L87 Difference]: Start difference. First operand 6283 states and 7637 transitions. Second operand 6 states. [2018-07-22 14:59:28,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 14:59:28,025 INFO L93 Difference]: Finished difference Result 19490 states and 23480 transitions. [2018-07-22 14:59:28,026 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-22 14:59:28,026 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 433 [2018-07-22 14:59:28,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 14:59:28,082 INFO L225 Difference]: With dead ends: 19490 [2018-07-22 14:59:28,083 INFO L226 Difference]: Without dead ends: 11825 [2018-07-22 14:59:28,094 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 442 GetRequests, 433 SyntacticMatches, 4 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2018-07-22 14:59:28,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11825 states. [2018-07-22 14:59:28,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11825 to 9737. [2018-07-22 14:59:28,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9737 states. [2018-07-22 14:59:28,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9737 states to 9737 states and 10931 transitions. [2018-07-22 14:59:28,354 INFO L78 Accepts]: Start accepts. Automaton has 9737 states and 10931 transitions. Word has length 433 [2018-07-22 14:59:28,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 14:59:28,355 INFO L471 AbstractCegarLoop]: Abstraction has 9737 states and 10931 transitions. [2018-07-22 14:59:28,356 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-22 14:59:28,356 INFO L276 IsEmpty]: Start isEmpty. Operand 9737 states and 10931 transitions. [2018-07-22 14:59:28,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2018-07-22 14:59:28,364 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 14:59:28,364 INFO L358 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, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 14:59:28,365 INFO L414 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 14:59:28,365 INFO L82 PathProgramCache]: Analyzing trace with hash -1391790401, now seen corresponding path program 1 times [2018-07-22 14:59:28,365 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 14:59:28,365 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 14:59:28,367 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:59:28,367 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:59:28,367 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:59:28,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:59:29,299 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2018-07-22 14:59:29,299 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-22 14:59:29,299 INFO L219 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2018-07-22 14:59:29,312 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-22 14:59:29,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:59:29,440 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-22 14:59:29,673 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-07-22 14:59:29,706 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-22 14:59:29,706 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2018-07-22 14:59:29,707 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-22 14:59:29,707 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-22 14:59:29,707 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-07-22 14:59:29,708 INFO L87 Difference]: Start difference. First operand 9737 states and 10931 transitions. Second operand 5 states. [2018-07-22 14:59:29,891 WARN L169 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-07-22 14:59:36,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 14:59:36,579 INFO L93 Difference]: Finished difference Result 36750 states and 42389 transitions. [2018-07-22 14:59:36,581 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-22 14:59:36,581 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 438 [2018-07-22 14:59:36,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 14:59:36,660 INFO L225 Difference]: With dead ends: 36750 [2018-07-22 14:59:36,660 INFO L226 Difference]: Without dead ends: 27015 [2018-07-22 14:59:36,671 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 445 GetRequests, 440 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-07-22 14:59:36,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27015 states. [2018-07-22 14:59:37,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27015 to 26324. [2018-07-22 14:59:37,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26324 states. [2018-07-22 14:59:37,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26324 states to 26324 states and 29838 transitions. [2018-07-22 14:59:37,216 INFO L78 Accepts]: Start accepts. Automaton has 26324 states and 29838 transitions. Word has length 438 [2018-07-22 14:59:37,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 14:59:37,217 INFO L471 AbstractCegarLoop]: Abstraction has 26324 states and 29838 transitions. [2018-07-22 14:59:37,217 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-22 14:59:37,217 INFO L276 IsEmpty]: Start isEmpty. Operand 26324 states and 29838 transitions. [2018-07-22 14:59:37,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1055 [2018-07-22 14:59:37,256 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 14:59:37,257 INFO L358 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, 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, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 14:59:37,258 INFO L414 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 14:59:37,258 INFO L82 PathProgramCache]: Analyzing trace with hash 12754034, now seen corresponding path program 1 times [2018-07-22 14:59:37,258 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 14:59:37,258 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 14:59:37,259 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:59:37,259 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:59:37,260 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:59:37,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:59:38,531 WARN L169 SmtUtils]: Spent 518.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 12 [2018-07-22 14:59:38,963 INFO L134 CoverageAnalysis]: Checked inductivity of 980 backedges. 508 proven. 0 refuted. 0 times theorem prover too weak. 472 trivial. 0 not checked. [2018-07-22 14:59:38,963 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 14:59:38,963 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-22 14:59:38,964 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 14:59:38,964 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 14:59:38,964 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 14:59:38,964 INFO L87 Difference]: Start difference. First operand 26324 states and 29838 transitions. Second operand 4 states. [2018-07-22 14:59:42,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 14:59:42,966 INFO L93 Difference]: Finished difference Result 62320 states and 71218 transitions. [2018-07-22 14:59:42,967 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 14:59:42,967 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1054 [2018-07-22 14:59:42,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 14:59:43,033 INFO L225 Difference]: With dead ends: 62320 [2018-07-22 14:59:43,033 INFO L226 Difference]: Without dead ends: 36689 [2018-07-22 14:59:43,063 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 14:59:43,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36689 states. [2018-07-22 14:59:43,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36689 to 35998. [2018-07-22 14:59:43,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35998 states. [2018-07-22 14:59:43,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35998 states to 35998 states and 39434 transitions. [2018-07-22 14:59:43,764 INFO L78 Accepts]: Start accepts. Automaton has 35998 states and 39434 transitions. Word has length 1054 [2018-07-22 14:59:43,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 14:59:43,766 INFO L471 AbstractCegarLoop]: Abstraction has 35998 states and 39434 transitions. [2018-07-22 14:59:43,766 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 14:59:43,766 INFO L276 IsEmpty]: Start isEmpty. Operand 35998 states and 39434 transitions. [2018-07-22 14:59:43,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1128 [2018-07-22 14:59:43,825 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 14:59:43,827 INFO L358 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 14:59:43,828 INFO L414 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 14:59:43,828 INFO L82 PathProgramCache]: Analyzing trace with hash 1207191578, now seen corresponding path program 1 times [2018-07-22 14:59:43,828 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 14:59:43,828 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 14:59:43,829 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:59:43,830 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:59:43,830 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:59:43,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:59:45,367 INFO L134 CoverageAnalysis]: Checked inductivity of 1334 backedges. 799 proven. 0 refuted. 0 times theorem prover too weak. 535 trivial. 0 not checked. [2018-07-22 14:59:45,368 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 14:59:45,368 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-22 14:59:45,369 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 14:59:45,369 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 14:59:45,369 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 14:59:45,369 INFO L87 Difference]: Start difference. First operand 35998 states and 39434 transitions. Second operand 4 states. [2018-07-22 14:59:49,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 14:59:49,175 INFO L93 Difference]: Finished difference Result 83050 states and 91483 transitions. [2018-07-22 14:59:49,177 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 14:59:49,177 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1127 [2018-07-22 14:59:49,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 14:59:49,258 INFO L225 Difference]: With dead ends: 83050 [2018-07-22 14:59:49,258 INFO L226 Difference]: Without dead ends: 47745 [2018-07-22 14:59:49,291 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 14:59:49,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47745 states. [2018-07-22 14:59:49,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47745 to 46363. [2018-07-22 14:59:49,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46363 states. [2018-07-22 14:59:49,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46363 states to 46363 states and 50317 transitions. [2018-07-22 14:59:49,887 INFO L78 Accepts]: Start accepts. Automaton has 46363 states and 50317 transitions. Word has length 1127 [2018-07-22 14:59:49,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 14:59:49,890 INFO L471 AbstractCegarLoop]: Abstraction has 46363 states and 50317 transitions. [2018-07-22 14:59:49,890 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 14:59:49,890 INFO L276 IsEmpty]: Start isEmpty. Operand 46363 states and 50317 transitions. [2018-07-22 14:59:49,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1149 [2018-07-22 14:59:49,910 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 14:59:49,911 INFO L358 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, 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, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 14:59:49,911 INFO L414 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 14:59:49,913 INFO L82 PathProgramCache]: Analyzing trace with hash -6369721, now seen corresponding path program 1 times [2018-07-22 14:59:49,913 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 14:59:49,913 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 14:59:49,914 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:59:49,914 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:59:49,915 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:59:50,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:59:51,271 INFO L134 CoverageAnalysis]: Checked inductivity of 1403 backedges. 868 proven. 0 refuted. 0 times theorem prover too weak. 535 trivial. 0 not checked. [2018-07-22 14:59:51,272 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 14:59:51,272 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-22 14:59:51,273 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 14:59:51,273 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 14:59:51,273 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 14:59:51,273 INFO L87 Difference]: Start difference. First operand 46363 states and 50317 transitions. Second operand 4 states. [2018-07-22 14:59:54,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 14:59:54,531 INFO L93 Difference]: Finished difference Result 93415 states and 101345 transitions. [2018-07-22 14:59:54,531 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 14:59:54,532 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1148 [2018-07-22 14:59:54,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 14:59:54,608 INFO L225 Difference]: With dead ends: 93415 [2018-07-22 14:59:54,608 INFO L226 Difference]: Without dead ends: 47745 [2018-07-22 14:59:54,641 INFO L578 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 [2018-07-22 14:59:54,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47745 states. [2018-07-22 14:59:55,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47745 to 47745. [2018-07-22 14:59:55,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47745 states. [2018-07-22 14:59:55,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47745 states to 47745 states and 51677 transitions. [2018-07-22 14:59:55,144 INFO L78 Accepts]: Start accepts. Automaton has 47745 states and 51677 transitions. Word has length 1148 [2018-07-22 14:59:55,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 14:59:55,145 INFO L471 AbstractCegarLoop]: Abstraction has 47745 states and 51677 transitions. [2018-07-22 14:59:55,145 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 14:59:55,145 INFO L276 IsEmpty]: Start isEmpty. Operand 47745 states and 51677 transitions. [2018-07-22 14:59:55,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1160 [2018-07-22 14:59:55,160 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 14:59:55,161 INFO L358 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, 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, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 14:59:55,162 INFO L414 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 14:59:55,163 INFO L82 PathProgramCache]: Analyzing trace with hash 794116714, now seen corresponding path program 1 times [2018-07-22 14:59:55,163 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 14:59:55,163 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 14:59:55,164 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:59:55,164 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:59:55,164 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:59:55,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:59:56,299 WARN L169 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 7 [2018-07-22 14:59:57,803 INFO L134 CoverageAnalysis]: Checked inductivity of 1425 backedges. 328 proven. 625 refuted. 0 times theorem prover too weak. 472 trivial. 0 not checked. [2018-07-22 14:59:57,803 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-22 14:59:57,803 INFO L219 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-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 [2018-07-22 14:59:57,810 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:59:58,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:59:58,065 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-22 14:59:59,205 INFO L134 CoverageAnalysis]: Checked inductivity of 1425 backedges. 657 proven. 0 refuted. 0 times theorem prover too weak. 768 trivial. 0 not checked. [2018-07-22 14:59:59,238 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-22 14:59:59,238 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 10 [2018-07-22 14:59:59,240 INFO L450 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-07-22 14:59:59,240 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-07-22 14:59:59,240 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-07-22 14:59:59,241 INFO L87 Difference]: Start difference. First operand 47745 states and 51677 transitions. Second operand 10 states. [2018-07-22 15:00:16,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 15:00:16,568 INFO L93 Difference]: Finished difference Result 96868 states and 104891 transitions. [2018-07-22 15:00:16,569 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-07-22 15:00:16,569 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 1159 [2018-07-22 15:00:16,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 15:00:16,633 INFO L225 Difference]: With dead ends: 96868 [2018-07-22 15:00:16,633 INFO L226 Difference]: Without dead ends: 44265 [2018-07-22 15:00:16,657 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 1191 GetRequests, 1169 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2018-07-22 15:00:16,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44265 states. [2018-07-22 15:00:17,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44265 to 43574. [2018-07-22 15:00:17,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43574 states. [2018-07-22 15:00:17,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43574 states to 43574 states and 45372 transitions. [2018-07-22 15:00:17,052 INFO L78 Accepts]: Start accepts. Automaton has 43574 states and 45372 transitions. Word has length 1159 [2018-07-22 15:00:17,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 15:00:17,053 INFO L471 AbstractCegarLoop]: Abstraction has 43574 states and 45372 transitions. [2018-07-22 15:00:17,053 INFO L472 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-07-22 15:00:17,053 INFO L276 IsEmpty]: Start isEmpty. Operand 43574 states and 45372 transitions. [2018-07-22 15:00:17,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1291 [2018-07-22 15:00:17,069 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 15:00:17,070 INFO L358 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, 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, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 15:00:17,070 INFO L414 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 15:00:17,071 INFO L82 PathProgramCache]: Analyzing trace with hash 2088414323, now seen corresponding path program 1 times [2018-07-22 15:00:17,071 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 15:00:17,071 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 15:00:17,072 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 15:00:17,072 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 15:00:17,072 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 15:00:17,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 15:00:20,033 INFO L134 CoverageAnalysis]: Checked inductivity of 1693 backedges. 673 proven. 0 refuted. 0 times theorem prover too weak. 1020 trivial. 0 not checked. [2018-07-22 15:00:20,033 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 15:00:20,033 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-22 15:00:20,034 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 15:00:20,034 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 15:00:20,034 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 15:00:20,035 INFO L87 Difference]: Start difference. First operand 43574 states and 45372 transitions. Second operand 4 states. [2018-07-22 15:00:23,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 15:00:23,499 INFO L93 Difference]: Finished difference Result 95438 states and 99650 transitions. [2018-07-22 15:00:23,500 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 15:00:23,500 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1290 [2018-07-22 15:00:23,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 15:00:23,557 INFO L225 Difference]: With dead ends: 95438 [2018-07-22 15:00:23,557 INFO L226 Difference]: Without dead ends: 49087 [2018-07-22 15:00:23,588 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 4 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 15:00:23,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49087 states. [2018-07-22 15:00:23,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49087 to 49087. [2018-07-22 15:00:23,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49087 states. [2018-07-22 15:00:24,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49087 states to 49087 states and 50673 transitions. [2018-07-22 15:00:24,015 INFO L78 Accepts]: Start accepts. Automaton has 49087 states and 50673 transitions. Word has length 1290 [2018-07-22 15:00:24,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 15:00:24,015 INFO L471 AbstractCegarLoop]: Abstraction has 49087 states and 50673 transitions. [2018-07-22 15:00:24,015 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 15:00:24,016 INFO L276 IsEmpty]: Start isEmpty. Operand 49087 states and 50673 transitions. [2018-07-22 15:00:24,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1357 [2018-07-22 15:00:24,031 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 15:00:24,032 INFO L358 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 15:00:24,032 INFO L414 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 15:00:24,033 INFO L82 PathProgramCache]: Analyzing trace with hash 1039794156, now seen corresponding path program 1 times [2018-07-22 15:00:24,033 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 15:00:24,033 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 15:00:24,034 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 15:00:24,034 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 15:00:24,034 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 15:00:24,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 15:00:25,025 WARN L169 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2018-07-22 15:00:25,248 WARN L169 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-07-22 15:00:25,614 WARN L169 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-07-22 15:00:25,973 WARN L169 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2018-07-22 15:00:27,389 INFO L134 CoverageAnalysis]: Checked inductivity of 2443 backedges. 1102 proven. 798 refuted. 0 times theorem prover too weak. 543 trivial. 0 not checked. [2018-07-22 15:00:27,389 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-22 15:00:27,389 INFO L219 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-22 15:00:27,395 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 15:00:27,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 15:00:27,655 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-22 15:00:28,663 INFO L134 CoverageAnalysis]: Checked inductivity of 2443 backedges. 1428 proven. 0 refuted. 0 times theorem prover too weak. 1015 trivial. 0 not checked. [2018-07-22 15:00:28,684 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-22 15:00:28,694 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2018-07-22 15:00:28,695 INFO L450 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-07-22 15:00:28,695 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-07-22 15:00:28,696 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-07-22 15:00:28,696 INFO L87 Difference]: Start difference. First operand 49087 states and 50673 transitions. Second operand 11 states. [2018-07-22 15:00:39,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 15:00:39,007 INFO L93 Difference]: Finished difference Result 111992 states and 116081 transitions. [2018-07-22 15:00:39,007 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-07-22 15:00:39,007 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 1356 [2018-07-22 15:00:39,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 15:00:39,060 INFO L225 Difference]: With dead ends: 111992 [2018-07-22 15:00:39,060 INFO L226 Difference]: Without dead ends: 63598 [2018-07-22 15:00:39,082 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 1376 GetRequests, 1362 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2018-07-22 15:00:39,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63598 states. [2018-07-22 15:00:39,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63598 to 62907. [2018-07-22 15:00:39,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62907 states. [2018-07-22 15:00:39,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62907 states to 62907 states and 64983 transitions. [2018-07-22 15:00:39,575 INFO L78 Accepts]: Start accepts. Automaton has 62907 states and 64983 transitions. Word has length 1356 [2018-07-22 15:00:39,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 15:00:39,576 INFO L471 AbstractCegarLoop]: Abstraction has 62907 states and 64983 transitions. [2018-07-22 15:00:39,576 INFO L472 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-07-22 15:00:39,576 INFO L276 IsEmpty]: Start isEmpty. Operand 62907 states and 64983 transitions. [2018-07-22 15:00:39,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1530 [2018-07-22 15:00:39,602 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 15:00:39,603 INFO L358 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 15:00:39,603 INFO L414 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 15:00:39,603 INFO L82 PathProgramCache]: Analyzing trace with hash -1313139184, now seen corresponding path program 1 times [2018-07-22 15:00:39,603 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 15:00:39,603 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 15:00:39,604 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 15:00:39,604 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 15:00:39,604 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 15:00:39,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 15:00:41,046 WARN L169 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 10 [2018-07-22 15:00:41,407 WARN L169 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 13 [2018-07-22 15:00:44,337 INFO L134 CoverageAnalysis]: Checked inductivity of 2745 backedges. 964 proven. 1551 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2018-07-22 15:00:44,338 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-22 15:00:44,338 INFO L219 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-22 15:00:44,344 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 15:00:44,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 15:00:44,615 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-22 15:00:45,491 INFO L134 CoverageAnalysis]: Checked inductivity of 2745 backedges. 1702 proven. 0 refuted. 0 times theorem prover too weak. 1043 trivial. 0 not checked. [2018-07-22 15:00:45,511 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-22 15:00:45,512 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [11] total 12 [2018-07-22 15:00:45,514 INFO L450 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-07-22 15:00:45,514 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-07-22 15:00:45,514 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-07-22 15:00:45,514 INFO L87 Difference]: Start difference. First operand 62907 states and 64983 transitions. Second operand 12 states. [2018-07-22 15:00:57,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 15:00:57,112 INFO L93 Difference]: Finished difference Result 150456 states and 155345 transitions. [2018-07-22 15:00:57,112 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-07-22 15:00:57,112 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 1529 [2018-07-22 15:00:57,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 15:00:57,183 INFO L225 Difference]: With dead ends: 150456 [2018-07-22 15:00:57,183 INFO L226 Difference]: Without dead ends: 88242 [2018-07-22 15:00:57,205 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 1572 GetRequests, 1544 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=224, Invalid=646, Unknown=0, NotChecked=0, Total=870 [2018-07-22 15:00:57,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88242 states. [2018-07-22 15:00:57,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88242 to 61525. [2018-07-22 15:00:57,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61525 states. [2018-07-22 15:00:57,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61525 states to 61525 states and 62990 transitions. [2018-07-22 15:00:57,926 INFO L78 Accepts]: Start accepts. Automaton has 61525 states and 62990 transitions. Word has length 1529 [2018-07-22 15:00:57,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 15:00:57,927 INFO L471 AbstractCegarLoop]: Abstraction has 61525 states and 62990 transitions. [2018-07-22 15:00:57,927 INFO L472 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-07-22 15:00:57,927 INFO L276 IsEmpty]: Start isEmpty. Operand 61525 states and 62990 transitions. [2018-07-22 15:00:57,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1609 [2018-07-22 15:00:57,956 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 15:00:57,957 INFO L358 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 15:00:57,957 INFO L414 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 15:00:57,958 INFO L82 PathProgramCache]: Analyzing trace with hash -952494889, now seen corresponding path program 1 times [2018-07-22 15:00:57,958 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 15:00:57,958 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 15:00:57,959 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 15:00:57,959 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 15:00:57,959 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 15:00:58,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 15:00:59,781 INFO L134 CoverageAnalysis]: Checked inductivity of 2746 backedges. 1469 proven. 0 refuted. 0 times theorem prover too weak. 1277 trivial. 0 not checked. [2018-07-22 15:00:59,781 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 15:00:59,782 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-22 15:00:59,782 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 15:00:59,782 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 15:00:59,783 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 15:00:59,783 INFO L87 Difference]: Start difference. First operand 61525 states and 62990 transitions. Second operand 4 states. [2018-07-22 15:01:03,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 15:01:03,222 INFO L93 Difference]: Finished difference Result 129958 states and 133061 transitions. [2018-07-22 15:01:03,222 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 15:01:03,223 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1608 [2018-07-22 15:01:03,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 15:01:03,279 INFO L225 Difference]: With dead ends: 129958 [2018-07-22 15:01:03,279 INFO L226 Difference]: Without dead ends: 67740 [2018-07-22 15:01:03,306 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 15:01:03,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67740 states. [2018-07-22 15:01:04,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67740 to 64976. [2018-07-22 15:01:04,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64976 states. [2018-07-22 15:01:04,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64976 states to 64976 states and 66443 transitions. [2018-07-22 15:01:04,081 INFO L78 Accepts]: Start accepts. Automaton has 64976 states and 66443 transitions. Word has length 1608 [2018-07-22 15:01:04,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 15:01:04,082 INFO L471 AbstractCegarLoop]: Abstraction has 64976 states and 66443 transitions. [2018-07-22 15:01:04,082 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 15:01:04,082 INFO L276 IsEmpty]: Start isEmpty. Operand 64976 states and 66443 transitions. [2018-07-22 15:01:04,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1614 [2018-07-22 15:01:04,120 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 15:01:04,121 INFO L358 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 15:01:04,121 INFO L414 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 15:01:04,122 INFO L82 PathProgramCache]: Analyzing trace with hash 1016697581, now seen corresponding path program 1 times [2018-07-22 15:01:04,122 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 15:01:04,122 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 15:01:04,123 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 15:01:04,123 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 15:01:04,123 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 15:01:04,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 15:01:06,273 INFO L134 CoverageAnalysis]: Checked inductivity of 3805 backedges. 2395 proven. 0 refuted. 0 times theorem prover too weak. 1410 trivial. 0 not checked. [2018-07-22 15:01:06,273 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 15:01:06,273 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-22 15:01:06,274 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-22 15:01:06,274 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-22 15:01:06,274 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-22 15:01:06,274 INFO L87 Difference]: Start difference. First operand 64976 states and 66443 transitions. Second operand 3 states. [2018-07-22 15:01:09,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 15:01:09,295 INFO L93 Difference]: Finished difference Result 136166 states and 139445 transitions. [2018-07-22 15:01:09,295 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-22 15:01:09,295 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1613 [2018-07-22 15:01:09,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 15:01:09,351 INFO L225 Difference]: With dead ends: 136166 [2018-07-22 15:01:09,352 INFO L226 Difference]: Without dead ends: 71883 [2018-07-22 15:01:09,379 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-22 15:01:09,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71883 states. [2018-07-22 15:01:09,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71883 to 71883. [2018-07-22 15:01:09,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71883 states. [2018-07-22 15:01:09,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71883 states to 71883 states and 73449 transitions. [2018-07-22 15:01:09,953 INFO L78 Accepts]: Start accepts. Automaton has 71883 states and 73449 transitions. Word has length 1613 [2018-07-22 15:01:09,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 15:01:09,954 INFO L471 AbstractCegarLoop]: Abstraction has 71883 states and 73449 transitions. [2018-07-22 15:01:09,954 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-22 15:01:09,954 INFO L276 IsEmpty]: Start isEmpty. Operand 71883 states and 73449 transitions. [2018-07-22 15:01:10,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1713 [2018-07-22 15:01:10,005 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 15:01:10,006 INFO L358 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 15:01:10,006 INFO L414 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 15:01:10,007 INFO L82 PathProgramCache]: Analyzing trace with hash 921368749, now seen corresponding path program 1 times [2018-07-22 15:01:10,007 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 15:01:10,007 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 15:01:10,008 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 15:01:10,008 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 15:01:10,008 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 15:01:10,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 15:01:11,053 WARN L169 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-07-22 15:01:11,482 WARN L169 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 14 [2018-07-22 15:01:11,669 WARN L169 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 17 [2018-07-22 15:01:15,240 INFO L134 CoverageAnalysis]: Checked inductivity of 2617 backedges. 1879 proven. 0 refuted. 0 times theorem prover too weak. 738 trivial. 0 not checked. [2018-07-22 15:01:15,240 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 15:01:15,240 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-07-22 15:01:15,241 INFO L450 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-07-22 15:01:15,241 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-07-22 15:01:15,241 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2018-07-22 15:01:15,241 INFO L87 Difference]: Start difference. First operand 71883 states and 73449 transitions. Second operand 10 states. [2018-07-22 15:01:22,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 15:01:22,079 INFO L93 Difference]: Finished difference Result 144085 states and 147224 transitions. [2018-07-22 15:01:22,079 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-22 15:01:22,079 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 1712 [2018-07-22 15:01:22,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 15:01:22,138 INFO L225 Difference]: With dead ends: 144085 [2018-07-22 15:01:22,138 INFO L226 Difference]: Without dead ends: 72895 [2018-07-22 15:01:22,167 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2018-07-22 15:01:22,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72895 states. [2018-07-22 15:01:22,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72895 to 72360. [2018-07-22 15:01:22,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72360 states. [2018-07-22 15:01:22,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72360 states to 72360 states and 73924 transitions. [2018-07-22 15:01:22,745 INFO L78 Accepts]: Start accepts. Automaton has 72360 states and 73924 transitions. Word has length 1712 [2018-07-22 15:01:22,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 15:01:22,746 INFO L471 AbstractCegarLoop]: Abstraction has 72360 states and 73924 transitions. [2018-07-22 15:01:22,746 INFO L472 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-07-22 15:01:22,746 INFO L276 IsEmpty]: Start isEmpty. Operand 72360 states and 73924 transitions. [2018-07-22 15:01:22,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1715 [2018-07-22 15:01:22,778 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 15:01:22,779 INFO L358 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 15:01:22,779 INFO L414 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 15:01:22,779 INFO L82 PathProgramCache]: Analyzing trace with hash -172293377, now seen corresponding path program 1 times [2018-07-22 15:01:22,780 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 15:01:22,780 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 15:01:22,780 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 15:01:22,780 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 15:01:22,780 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 15:01:23,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 15:01:24,782 INFO L134 CoverageAnalysis]: Checked inductivity of 3279 backedges. 2368 proven. 0 refuted. 0 times theorem prover too weak. 911 trivial. 0 not checked. [2018-07-22 15:01:24,782 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 15:01:24,782 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-22 15:01:24,783 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 15:01:24,783 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 15:01:24,783 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 15:01:24,783 INFO L87 Difference]: Start difference. First operand 72360 states and 73924 transitions. Second operand 4 states. [2018-07-22 15:01:27,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 15:01:27,662 INFO L93 Difference]: Finished difference Result 146100 states and 149260 transitions. [2018-07-22 15:01:27,663 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 15:01:27,663 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1714 [2018-07-22 15:01:27,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 15:01:27,724 INFO L225 Difference]: With dead ends: 146100 [2018-07-22 15:01:27,724 INFO L226 Difference]: Without dead ends: 74433 [2018-07-22 15:01:27,754 INFO L578 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 [2018-07-22 15:01:27,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74433 states. [2018-07-22 15:01:28,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74433 to 73051. [2018-07-22 15:01:28,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73051 states. [2018-07-22 15:01:28,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73051 states to 73051 states and 74497 transitions. [2018-07-22 15:01:28,329 INFO L78 Accepts]: Start accepts. Automaton has 73051 states and 74497 transitions. Word has length 1714 [2018-07-22 15:01:28,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 15:01:28,329 INFO L471 AbstractCegarLoop]: Abstraction has 73051 states and 74497 transitions. [2018-07-22 15:01:28,329 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 15:01:28,329 INFO L276 IsEmpty]: Start isEmpty. Operand 73051 states and 74497 transitions. [2018-07-22 15:01:28,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1732 [2018-07-22 15:01:28,516 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 15:01:28,517 INFO L358 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 15:01:28,517 INFO L414 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 15:01:28,552 INFO L82 PathProgramCache]: Analyzing trace with hash 1316926537, now seen corresponding path program 1 times [2018-07-22 15:01:28,552 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 15:01:28,552 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 15:01:28,553 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 15:01:28,553 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 15:01:28,553 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 15:01:28,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 15:01:29,663 WARN L169 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 8 [2018-07-22 15:01:31,931 INFO L134 CoverageAnalysis]: Checked inductivity of 3301 backedges. 2125 proven. 0 refuted. 0 times theorem prover too weak. 1176 trivial. 0 not checked. [2018-07-22 15:01:31,931 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 15:01:31,932 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-22 15:01:31,932 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 15:01:31,932 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 15:01:31,932 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 15:01:31,933 INFO L87 Difference]: Start difference. First operand 73051 states and 74497 transitions. Second operand 4 states. [2018-07-22 15:01:35,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 15:01:35,250 INFO L93 Difference]: Finished difference Result 146791 states and 149692 transitions. [2018-07-22 15:01:35,250 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 15:01:35,250 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1731 [2018-07-22 15:01:35,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 15:01:35,314 INFO L225 Difference]: With dead ends: 146791 [2018-07-22 15:01:35,314 INFO L226 Difference]: Without dead ends: 74433 [2018-07-22 15:01:35,340 INFO L578 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 [2018-07-22 15:01:35,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74433 states. [2018-07-22 15:01:36,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74433 to 70978. [2018-07-22 15:01:36,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70978 states. [2018-07-22 15:01:36,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70978 states to 70978 states and 72184 transitions. [2018-07-22 15:01:36,130 INFO L78 Accepts]: Start accepts. Automaton has 70978 states and 72184 transitions. Word has length 1731 [2018-07-22 15:01:36,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 15:01:36,131 INFO L471 AbstractCegarLoop]: Abstraction has 70978 states and 72184 transitions. [2018-07-22 15:01:36,131 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 15:01:36,131 INFO L276 IsEmpty]: Start isEmpty. Operand 70978 states and 72184 transitions. [2018-07-22 15:01:36,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1746 [2018-07-22 15:01:36,164 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 15:01:36,165 INFO L358 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 15:01:36,165 INFO L414 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 15:01:36,165 INFO L82 PathProgramCache]: Analyzing trace with hash -645640099, now seen corresponding path program 1 times [2018-07-22 15:01:36,166 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 15:01:36,166 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 15:01:36,166 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 15:01:36,166 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 15:01:36,166 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 15:01:36,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 15:01:38,176 INFO L134 CoverageAnalysis]: Checked inductivity of 4157 backedges. 2785 proven. 0 refuted. 0 times theorem prover too weak. 1372 trivial. 0 not checked. [2018-07-22 15:01:38,176 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 15:01:38,176 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-22 15:01:38,177 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 15:01:38,177 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 15:01:38,177 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 15:01:38,177 INFO L87 Difference]: Start difference. First operand 70978 states and 72184 transitions. Second operand 4 states. [2018-07-22 15:01:41,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 15:01:41,138 INFO L93 Difference]: Finished difference Result 148173 states and 150675 transitions. [2018-07-22 15:01:41,139 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 15:01:41,139 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1745 [2018-07-22 15:01:41,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 15:01:41,200 INFO L225 Difference]: With dead ends: 148173 [2018-07-22 15:01:41,201 INFO L226 Difference]: Without dead ends: 77888 [2018-07-22 15:01:41,230 INFO L578 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 [2018-07-22 15:01:41,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77888 states. [2018-07-22 15:01:41,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77888 to 73956. [2018-07-22 15:01:41,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73956 states. [2018-07-22 15:01:41,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73956 states to 73956 states and 75156 transitions. [2018-07-22 15:01:41,957 INFO L78 Accepts]: Start accepts. Automaton has 73956 states and 75156 transitions. Word has length 1745 [2018-07-22 15:01:41,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 15:01:41,958 INFO L471 AbstractCegarLoop]: Abstraction has 73956 states and 75156 transitions. [2018-07-22 15:01:41,958 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 15:01:41,958 INFO L276 IsEmpty]: Start isEmpty. Operand 73956 states and 75156 transitions. [2018-07-22 15:01:41,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1781 [2018-07-22 15:01:41,990 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 15:01:41,991 INFO L358 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-22 15:01:41,991 INFO L414 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 15:01:41,992 INFO L82 PathProgramCache]: Analyzing trace with hash 1422952320, now seen corresponding path program 1 times [2018-07-22 15:01:41,992 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 15:01:41,992 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 15:01:41,993 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 15:01:41,993 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 15:01:41,993 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 15:01:42,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 15:01:44,391 INFO L134 CoverageAnalysis]: Checked inductivity of 3767 backedges. 2280 proven. 0 refuted. 0 times theorem prover too weak. 1487 trivial. 0 not checked. [2018-07-22 15:01:44,391 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 15:01:44,392 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-22 15:01:44,393 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 15:01:44,393 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 15:01:44,393 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 15:01:44,394 INFO L87 Difference]: Start difference. First operand 73956 states and 75156 transitions. Second operand 4 states. [2018-07-22 15:01:47,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 15:01:47,411 INFO L93 Difference]: Finished difference Result 147910 states and 150320 transitions. [2018-07-22 15:01:47,412 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 15:01:47,412 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1780 [2018-07-22 15:01:47,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 15:01:47,483 INFO L225 Difference]: With dead ends: 147910 [2018-07-22 15:01:47,483 INFO L226 Difference]: Without dead ends: 71873 [2018-07-22 15:01:47,514 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 4 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 15:01:47,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71873 states. [2018-07-22 15:01:48,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71873 to 70491. [2018-07-22 15:01:48,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70491 states. [2018-07-22 15:01:48,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70491 states to 70491 states and 71326 transitions. [2018-07-22 15:01:48,084 INFO L78 Accepts]: Start accepts. Automaton has 70491 states and 71326 transitions. Word has length 1780 [2018-07-22 15:01:48,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 15:01:48,085 INFO L471 AbstractCegarLoop]: Abstraction has 70491 states and 71326 transitions. [2018-07-22 15:01:48,085 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 15:01:48,085 INFO L276 IsEmpty]: Start isEmpty. Operand 70491 states and 71326 transitions. [2018-07-22 15:01:48,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1825 [2018-07-22 15:01:48,123 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 15:01:48,124 INFO L358 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-22 15:01:48,124 INFO L414 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 15:01:48,124 INFO L82 PathProgramCache]: Analyzing trace with hash 1039285446, now seen corresponding path program 1 times [2018-07-22 15:01:48,124 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 15:01:48,124 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 15:01:48,125 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 15:01:48,125 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 15:01:48,125 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 15:01:48,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 15:01:50,060 INFO L134 CoverageAnalysis]: Checked inductivity of 3674 backedges. 440 proven. 0 refuted. 0 times theorem prover too weak. 3234 trivial. 0 not checked. [2018-07-22 15:01:50,061 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 15:01:50,061 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-22 15:01:50,061 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 15:01:50,062 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 15:01:50,062 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 15:01:50,062 INFO L87 Difference]: Start difference. First operand 70491 states and 71326 transitions. Second operand 4 states. [2018-07-22 15:01:52,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 15:01:52,962 INFO L93 Difference]: Finished difference Result 142362 states and 144044 transitions. [2018-07-22 15:01:52,962 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 15:01:52,962 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1824 [2018-07-22 15:01:52,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 15:01:53,021 INFO L225 Difference]: With dead ends: 142362 [2018-07-22 15:01:53,021 INFO L226 Difference]: Without dead ends: 71870 [2018-07-22 15:01:53,052 INFO L578 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 [2018-07-22 15:01:53,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71870 states. [2018-07-22 15:01:53,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71870 to 68415. [2018-07-22 15:01:53,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68415 states. [2018-07-22 15:01:53,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68415 states to 68415 states and 69137 transitions. [2018-07-22 15:01:53,587 INFO L78 Accepts]: Start accepts. Automaton has 68415 states and 69137 transitions. Word has length 1824 [2018-07-22 15:01:53,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 15:01:53,588 INFO L471 AbstractCegarLoop]: Abstraction has 68415 states and 69137 transitions. [2018-07-22 15:01:53,588 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 15:01:53,588 INFO L276 IsEmpty]: Start isEmpty. Operand 68415 states and 69137 transitions. [2018-07-22 15:01:53,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1838 [2018-07-22 15:01:53,622 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 15:01:53,623 INFO L358 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 15:01:53,623 INFO L414 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 15:01:53,623 INFO L82 PathProgramCache]: Analyzing trace with hash 490956024, now seen corresponding path program 1 times [2018-07-22 15:01:53,623 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 15:01:53,623 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 15:01:53,624 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 15:01:53,624 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 15:01:53,624 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 15:01:53,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 15:01:57,000 INFO L134 CoverageAnalysis]: Checked inductivity of 4267 backedges. 1348 proven. 0 refuted. 0 times theorem prover too weak. 2919 trivial. 0 not checked. [2018-07-22 15:01:57,000 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 15:01:57,001 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-22 15:01:57,001 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 15:01:57,001 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 15:01:57,002 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 15:01:57,002 INFO L87 Difference]: Start difference. First operand 68415 states and 69137 transitions. Second operand 4 states. [2018-07-22 15:01:59,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 15:01:59,938 INFO L93 Difference]: Finished difference Result 153412 states and 155093 transitions. [2018-07-22 15:01:59,939 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 15:01:59,939 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1837 [2018-07-22 15:01:59,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 15:02:00,010 INFO L225 Difference]: With dead ends: 153412 [2018-07-22 15:02:00,010 INFO L226 Difference]: Without dead ends: 85690 [2018-07-22 15:02:00,041 INFO L578 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 [2018-07-22 15:02:00,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85690 states. [2018-07-22 15:02:00,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85690 to 80162. [2018-07-22 15:02:00,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80162 states. [2018-07-22 15:02:00,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80162 states to 80162 states and 80994 transitions. [2018-07-22 15:02:00,715 INFO L78 Accepts]: Start accepts. Automaton has 80162 states and 80994 transitions. Word has length 1837 [2018-07-22 15:02:00,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 15:02:00,716 INFO L471 AbstractCegarLoop]: Abstraction has 80162 states and 80994 transitions. [2018-07-22 15:02:00,716 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 15:02:00,717 INFO L276 IsEmpty]: Start isEmpty. Operand 80162 states and 80994 transitions. [2018-07-22 15:02:00,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1978 [2018-07-22 15:02:00,760 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 15:02:00,761 INFO L358 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2018-07-22 15:02:00,761 INFO L414 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 15:02:00,761 INFO L82 PathProgramCache]: Analyzing trace with hash 1585926992, now seen corresponding path program 1 times [2018-07-22 15:02:00,761 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 15:02:00,761 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 15:02:00,762 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 15:02:00,762 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 15:02:00,762 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 15:02:01,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 15:02:03,181 INFO L134 CoverageAnalysis]: Checked inductivity of 4314 backedges. 1215 proven. 63 refuted. 0 times theorem prover too weak. 3036 trivial. 0 not checked. [2018-07-22 15:02:03,182 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-22 15:02:03,182 INFO L219 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-22 15:02:03,188 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 15:02:03,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 15:02:03,656 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-22 15:02:04,972 INFO L134 CoverageAnalysis]: Checked inductivity of 4314 backedges. 1215 proven. 63 refuted. 0 times theorem prover too weak. 3036 trivial. 0 not checked. [2018-07-22 15:02:04,993 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-22 15:02:05,008 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 5 [2018-07-22 15:02:05,009 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-22 15:02:05,010 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-22 15:02:05,010 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-07-22 15:02:05,010 INFO L87 Difference]: Start difference. First operand 80162 states and 80994 transitions. Second operand 5 states. [2018-07-22 15:02:11,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 15:02:11,378 INFO L93 Difference]: Finished difference Result 187961 states and 189972 transitions. [2018-07-22 15:02:11,379 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-22 15:02:11,379 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1977 [2018-07-22 15:02:11,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 15:02:11,381 INFO L225 Difference]: With dead ends: 187961 [2018-07-22 15:02:11,381 INFO L226 Difference]: Without dead ends: 0 [2018-07-22 15:02:11,423 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 1985 GetRequests, 1979 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-07-22 15:02:11,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-07-22 15:02:11,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-07-22 15:02:11,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-07-22 15:02:11,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-07-22 15:02:11,424 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1977 [2018-07-22 15:02:11,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 15:02:11,424 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-07-22 15:02:11,424 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-22 15:02:11,424 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-07-22 15:02:11,425 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-07-22 15:02:11,428 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-07-22 15:02:11,548 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:11,630 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:11,680 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:11,744 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:11,946 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:12,015 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:12,020 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:12,049 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:12,054 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:12,056 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:12,072 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:12,076 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:12,092 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:12,111 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:12,137 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:12,145 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:12,170 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:12,201 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:12,228 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:12,237 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:12,351 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:12,366 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:12,377 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:12,383 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:12,428 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:12,429 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:12,471 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:12,504 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:12,546 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:12,613 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:12,632 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:12,678 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:12,740 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:12,783 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:12,791 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:12,795 WARN L169 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 528 DAG size of output: 343 [2018-07-22 15:02:12,973 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:13,055 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:13,134 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:13,279 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:13,390 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:13,395 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:13,402 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:13,404 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:13,418 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:13,468 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:13,471 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:13,508 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:13,539 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:13,546 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:13,573 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:13,580 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:13,587 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:13,598 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:13,613 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:13,622 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:13,647 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:13,651 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:13,656 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:13,676 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:13,695 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:13,737 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:13,790 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:13,828 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:13,839 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:13,875 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:13,912 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:13,917 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:13,921 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:13,930 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:13,952 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:13,974 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:13,996 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:14,001 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:14,019 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:14,062 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:14,067 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:14,072 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:14,085 WARN L169 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 694 DAG size of output: 399 [2018-07-22 15:02:14,106 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:14,201 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:14,232 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:14,236 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:14,238 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:14,240 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:14,284 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:14,356 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:14,419 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:14,455 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:14,536 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:14,537 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:14,596 WARN L169 SmtUtils]: Spent 509.00 ms on a formula simplification. DAG size of input: 381 DAG size of output: 281 [2018-07-22 15:02:14,747 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:14,824 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:14,900 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:15,040 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:15,145 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:15,154 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:15,164 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:15,166 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:15,179 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:15,216 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:15,217 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:15,238 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:15,255 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:15,259 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:15,275 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:15,280 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:15,291 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:15,298 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:15,307 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:15,313 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:15,329 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:15,332 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:15,334 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:15,347 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:15,360 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:15,388 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:15,422 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:15,446 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:15,453 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:15,488 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:15,523 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:15,528 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:15,533 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:15,540 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:15,560 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:15,580 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:15,599 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:15,603 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:15,619 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:15,657 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:15,662 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:15,666 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-22 15:02:15,677 WARN L169 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 694 DAG size of output: 399 [2018-07-22 15:02:19,533 WARN L169 SmtUtils]: Spent 3.85 s on a formula simplification. DAG size of input: 294 DAG size of output: 142 Received shutdown request... [2018-07-22 15:02:20,930 WARN L177 SmtUtils]: Removed 103 from assertion stack [2018-07-22 15:02:20,930 INFO L256 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2018-07-22 15:02:20,931 INFO L168 Benchmark]: Toolchain (without parser) took 214973.55 ms. Allocated memory was 307.2 MB in the beginning and 2.7 GB in the end (delta: 2.4 GB). Free memory was 242.2 MB in the beginning and 1.7 GB in the end (delta: -1.5 GB). Peak memory consumption was 2.0 GB. Max. memory is 5.3 GB. [2018-07-22 15:02:20,932 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 307.2 MB. Free memory is still 272.9 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-07-22 15:02:20,932 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2139.66 ms. Allocated memory was 307.2 MB in the beginning and 336.6 MB in the end (delta: 29.4 MB). Free memory was 242.2 MB in the beginning and 181.5 MB in the end (delta: 60.7 MB). Peak memory consumption was 90.1 MB. Max. memory is 5.3 GB. [2018-07-22 15:02:20,933 INFO L168 Benchmark]: Boogie Procedure Inliner took 393.73 ms. Allocated memory was 336.6 MB in the beginning and 395.8 MB in the end (delta: 59.2 MB). Free memory was 181.5 MB in the beginning and 302.3 MB in the end (delta: -120.8 MB). Peak memory consumption was 30.0 MB. Max. memory is 5.3 GB. [2018-07-22 15:02:20,933 INFO L168 Benchmark]: Boogie Preprocessor took 869.54 ms. Allocated memory was 395.8 MB in the beginning and 565.7 MB in the end (delta: 169.9 MB). Free memory was 302.3 MB in the beginning and 483.9 MB in the end (delta: -181.6 MB). Peak memory consumption was 55.0 MB. Max. memory is 5.3 GB. [2018-07-22 15:02:20,934 INFO L168 Benchmark]: RCFGBuilder took 7419.31 ms. Allocated memory was 565.7 MB in the beginning and 679.5 MB in the end (delta: 113.8 MB). Free memory was 483.9 MB in the beginning and 416.7 MB in the end (delta: 67.2 MB). Peak memory consumption was 204.6 MB. Max. memory is 5.3 GB. [2018-07-22 15:02:20,934 INFO L168 Benchmark]: TraceAbstraction took 204138.15 ms. Allocated memory was 679.5 MB in the beginning and 2.7 GB in the end (delta: 2.0 GB). Free memory was 416.7 MB in the beginning and 1.7 GB in the end (delta: -1.3 GB). Peak memory consumption was 1.8 GB. Max. memory is 5.3 GB. [2018-07-22 15:02:20,938 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 307.2 MB. Free memory is still 272.9 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 2139.66 ms. Allocated memory was 307.2 MB in the beginning and 336.6 MB in the end (delta: 29.4 MB). Free memory was 242.2 MB in the beginning and 181.5 MB in the end (delta: 60.7 MB). Peak memory consumption was 90.1 MB. Max. memory is 5.3 GB. * Boogie Procedure Inliner took 393.73 ms. Allocated memory was 336.6 MB in the beginning and 395.8 MB in the end (delta: 59.2 MB). Free memory was 181.5 MB in the beginning and 302.3 MB in the end (delta: -120.8 MB). Peak memory consumption was 30.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 869.54 ms. Allocated memory was 395.8 MB in the beginning and 565.7 MB in the end (delta: 169.9 MB). Free memory was 302.3 MB in the beginning and 483.9 MB in the end (delta: -181.6 MB). Peak memory consumption was 55.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 7419.31 ms. Allocated memory was 565.7 MB in the beginning and 679.5 MB in the end (delta: 113.8 MB). Free memory was 483.9 MB in the beginning and 416.7 MB in the end (delta: 67.2 MB). Peak memory consumption was 204.6 MB. Max. memory is 5.3 GB. * TraceAbstraction took 204138.15 ms. Allocated memory was 679.5 MB in the beginning and 2.7 GB in the end (delta: 2.0 GB). Free memory was 416.7 MB in the beginning and 1.7 GB in the end (delta: -1.3 GB). Peak memory consumption was 1.8 GB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 201]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - TimeoutResult: Timeout (de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction) Toolchain cancelled while SimplifyDDAWithTimeout was simplifying term of DAG size 333. RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem18_label28_true-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-22_15-02-20-952.csv Completed graceful shutdown