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_label14_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-71425fa [2018-07-22 14:50:27,265 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-22 14:50:27,266 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-22 14:50:27,278 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-22 14:50:27,278 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-22 14:50:27,279 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-22 14:50:27,283 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-22 14:50:27,290 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-22 14:50:27,292 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-22 14:50:27,294 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-22 14:50:27,295 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-22 14:50:27,295 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-22 14:50:27,296 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-22 14:50:27,299 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-22 14:50:27,300 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-22 14:50:27,301 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-22 14:50:27,302 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-22 14:50:27,303 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-22 14:50:27,305 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-22 14:50:27,307 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-22 14:50:27,308 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-22 14:50:27,309 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-22 14:50:27,311 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-22 14:50:27,311 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-22 14:50:27,312 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-22 14:50:27,313 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-22 14:50:27,313 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-22 14:50:27,314 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-22 14:50:27,315 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-22 14:50:27,316 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-22 14:50:27,316 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-22 14:50:27,317 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-07-22 14:50:27,319 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 14:50:27,335 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-22 14:50:27,335 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-22 14:50:27,336 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-22 14:50:27,336 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-07-22 14:50:27,337 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-07-22 14:50:27,337 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-07-22 14:50:27,337 INFO L133 SettingsManager]: * Use SBE=true [2018-07-22 14:50:27,338 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-22 14:50:27,338 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-22 14:50:27,338 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-22 14:50:27,338 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-22 14:50:27,338 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-22 14:50:27,339 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-22 14:50:27,339 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-22 14:50:27,339 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-22 14:50:27,339 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-22 14:50:27,339 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-22 14:50:27,340 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-22 14:50:27,340 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-22 14:50:27,340 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-22 14:50:27,340 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-22 14:50:27,340 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-07-22 14:50:27,340 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-22 14:50:27,341 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-22 14:50:27,341 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-07-22 14:50:27,341 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-22 14:50:27,341 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-22 14:50:27,341 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-22 14:50:27,342 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-22 14:50:27,395 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-22 14:50:27,416 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-22 14:50:27,422 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-22 14:50:27,424 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-22 14:50:27,424 INFO L276 PluginConnector]: CDTParser initialized [2018-07-22 14:50:27,425 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label14_true-unreach-call.c [2018-07-22 14:50:27,807 INFO L220 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/5a6b42f2a/2e66efcbfaaf468bb45413b75f489fa5/FLAGe0bf0165b [2018-07-22 14:50:28,279 INFO L276 CDTParser]: Found 1 translation units. [2018-07-22 14:50:28,280 INFO L158 CDTParser]: Scanning /storage/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label14_true-unreach-call.c [2018-07-22 14:50:28,322 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/5a6b42f2a/2e66efcbfaaf468bb45413b75f489fa5/FLAGe0bf0165b [2018-07-22 14:50:28,341 INFO L332 CDTParser]: Successfully deleted /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/5a6b42f2a/2e66efcbfaaf468bb45413b75f489fa5 [2018-07-22 14:50:28,353 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-22 14:50:28,360 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-22 14:50:28,362 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-22 14:50:28,362 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-22 14:50:28,369 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-22 14:50:28,370 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 02:50:28" (1/1) ... [2018-07-22 14:50:28,373 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e40129b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:50:28, skipping insertion in model container [2018-07-22 14:50:28,374 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 02:50:28" (1/1) ... [2018-07-22 14:50:28,696 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-22 14:50:29,605 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-22 14:50:29,625 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-22 14:50:30,396 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-22 14:50:30,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:50:30 WrapperNode [2018-07-22 14:50:30,544 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-22 14:50:30,545 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-22 14:50:30,546 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-22 14:50:30,546 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-22 14:50:30,558 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:50:30" (1/1) ... [2018-07-22 14:50:30,619 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:50:30" (1/1) ... [2018-07-22 14:50:30,976 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-22 14:50:30,977 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-22 14:50:30,977 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-22 14:50:30,977 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-22 14:50:31,509 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:50:30" (1/1) ... [2018-07-22 14:50:31,509 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:50:30" (1/1) ... [2018-07-22 14:50:31,533 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:50:30" (1/1) ... [2018-07-22 14:50:31,533 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:50:30" (1/1) ... [2018-07-22 14:50:31,647 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:50:30" (1/1) ... [2018-07-22 14:50:31,695 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:50:30" (1/1) ... [2018-07-22 14:50:31,722 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:50:30" (1/1) ... [2018-07-22 14:50:31,745 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-22 14:50:31,746 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-22 14:50:31,747 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-22 14:50:31,747 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-22 14:50:31,748 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:50:30" (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 14:50:31,818 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-07-22 14:50:31,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-22 14:50:31,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-22 14:50:39,837 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-22 14:50:39,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:50:39 BoogieIcfgContainer [2018-07-22 14:50:39,838 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-22 14:50:39,839 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-22 14:50:39,839 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-22 14:50:39,842 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-22 14:50:39,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 02:50:28" (1/3) ... [2018-07-22 14:50:39,843 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a50fdea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 02:50:39, skipping insertion in model container [2018-07-22 14:50:39,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:50:30" (2/3) ... [2018-07-22 14:50:39,844 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a50fdea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 02:50:39, skipping insertion in model container [2018-07-22 14:50:39,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:50:39" (3/3) ... [2018-07-22 14:50:39,847 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label14_true-unreach-call.c [2018-07-22 14:50:39,858 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-22 14:50:39,867 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-22 14:50:39,928 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-22 14:50:39,929 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-22 14:50:39,929 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-22 14:50:39,929 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-22 14:50:39,930 INFO L376 AbstractCegarLoop]: Backedges is TWOTRACK [2018-07-22 14:50:39,930 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-22 14:50:39,930 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-22 14:50:39,930 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-22 14:50:39,930 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-22 14:50:39,966 INFO L276 IsEmpty]: Start isEmpty. Operand 758 states. [2018-07-22 14:50:39,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-07-22 14:50:39,977 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 14:50:39,980 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] [2018-07-22 14:50:39,980 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 14:50:39,986 INFO L82 PathProgramCache]: Analyzing trace with hash 1316472986, now seen corresponding path program 1 times [2018-07-22 14:50:39,988 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 14:50:39,989 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 14:50:40,041 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:50:40,041 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:50:40,041 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:50:40,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:50:40,406 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 14:50:40,409 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 14:50:40,409 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-22 14:50:40,412 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 14:50:40,426 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 14:50:40,427 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 14:50:40,430 INFO L87 Difference]: Start difference. First operand 758 states. Second operand 4 states. [2018-07-22 14:50:50,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 14:50:50,447 INFO L93 Difference]: Finished difference Result 2902 states and 5650 transitions. [2018-07-22 14:50:50,447 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 14:50:50,448 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2018-07-22 14:50:50,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 14:50:50,494 INFO L225 Difference]: With dead ends: 2902 [2018-07-22 14:50:50,494 INFO L226 Difference]: Without dead ends: 2137 [2018-07-22 14:50:50,502 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 14:50:50,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2137 states. [2018-07-22 14:50:50,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2137 to 2137. [2018-07-22 14:50:50,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2137 states. [2018-07-22 14:50:50,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2137 states to 2137 states and 3733 transitions. [2018-07-22 14:50:50,669 INFO L78 Accepts]: Start accepts. Automaton has 2137 states and 3733 transitions. Word has length 51 [2018-07-22 14:50:50,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 14:50:50,669 INFO L471 AbstractCegarLoop]: Abstraction has 2137 states and 3733 transitions. [2018-07-22 14:50:50,669 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 14:50:50,669 INFO L276 IsEmpty]: Start isEmpty. Operand 2137 states and 3733 transitions. [2018-07-22 14:50:50,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2018-07-22 14:50:50,676 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 14:50:50,676 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, 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 14:50:50,677 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 14:50:50,677 INFO L82 PathProgramCache]: Analyzing trace with hash 543888713, now seen corresponding path program 1 times [2018-07-22 14:50:50,677 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 14:50:50,677 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 14:50:50,679 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:50:50,679 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:50:50,679 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:50:50,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:50:51,004 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-22 14:50:51,005 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 14:50:51,006 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-22 14:50:51,008 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 14:50:51,008 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 14:50:51,008 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 14:50:51,009 INFO L87 Difference]: Start difference. First operand 2137 states and 3733 transitions. Second operand 4 states. [2018-07-22 14:50:58,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 14:50:58,357 INFO L93 Difference]: Finished difference Result 6345 states and 11134 transitions. [2018-07-22 14:50:58,358 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-22 14:50:58,358 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 117 [2018-07-22 14:50:58,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 14:50:58,379 INFO L225 Difference]: With dead ends: 6345 [2018-07-22 14:50:58,379 INFO L226 Difference]: Without dead ends: 4210 [2018-07-22 14:50:58,382 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 14:50:58,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4210 states. [2018-07-22 14:50:58,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4210 to 4210. [2018-07-22 14:50:58,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4210 states. [2018-07-22 14:50:58,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4210 states to 4210 states and 6185 transitions. [2018-07-22 14:50:58,504 INFO L78 Accepts]: Start accepts. Automaton has 4210 states and 6185 transitions. Word has length 117 [2018-07-22 14:50:58,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 14:50:58,505 INFO L471 AbstractCegarLoop]: Abstraction has 4210 states and 6185 transitions. [2018-07-22 14:50:58,505 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 14:50:58,505 INFO L276 IsEmpty]: Start isEmpty. Operand 4210 states and 6185 transitions. [2018-07-22 14:50:58,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2018-07-22 14:50:58,519 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 14:50:58,520 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, 1, 1, 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 14:50:58,520 INFO L414 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 14:50:58,520 INFO L82 PathProgramCache]: Analyzing trace with hash -60509066, now seen corresponding path program 1 times [2018-07-22 14:50:58,520 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 14:50:58,521 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 14:50:58,521 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:50:58,522 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:50:58,522 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:50:58,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:50:58,751 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-22 14:50:58,752 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 14:50:58,753 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-22 14:50:58,753 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-22 14:50:58,753 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-22 14:50:58,754 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-22 14:50:58,754 INFO L87 Difference]: Start difference. First operand 4210 states and 6185 transitions. Second operand 5 states. [2018-07-22 14:51:05,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 14:51:05,412 INFO L93 Difference]: Finished difference Result 16019 states and 23645 transitions. [2018-07-22 14:51:05,413 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 14:51:05,413 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 120 [2018-07-22 14:51:05,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 14:51:05,466 INFO L225 Difference]: With dead ends: 16019 [2018-07-22 14:51:05,467 INFO L226 Difference]: Without dead ends: 11811 [2018-07-22 14:51:05,475 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-22 14:51:05,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11811 states. [2018-07-22 14:51:05,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11811 to 11811. [2018-07-22 14:51:05,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11811 states. [2018-07-22 14:51:05,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11811 states to 11811 states and 15710 transitions. [2018-07-22 14:51:05,759 INFO L78 Accepts]: Start accepts. Automaton has 11811 states and 15710 transitions. Word has length 120 [2018-07-22 14:51:05,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 14:51:05,761 INFO L471 AbstractCegarLoop]: Abstraction has 11811 states and 15710 transitions. [2018-07-22 14:51:05,761 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-22 14:51:05,762 INFO L276 IsEmpty]: Start isEmpty. Operand 11811 states and 15710 transitions. [2018-07-22 14:51:05,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-07-22 14:51:05,764 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 14:51:05,768 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:51:05,768 INFO L414 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 14:51:05,768 INFO L82 PathProgramCache]: Analyzing trace with hash 191853071, now seen corresponding path program 1 times [2018-07-22 14:51:05,769 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 14:51:05,769 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 14:51:05,770 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:51:05,770 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:51:05,770 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:51:05,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:51:06,360 WARN L169 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 11 [2018-07-22 14:51:06,416 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-22 14:51:06,416 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 14:51:06,417 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-22 14:51:06,418 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-22 14:51:06,418 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-22 14:51:06,418 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-07-22 14:51:06,419 INFO L87 Difference]: Start difference. First operand 11811 states and 15710 transitions. Second operand 5 states. [2018-07-22 14:51:11,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 14:51:11,621 INFO L93 Difference]: Finished difference Result 28457 states and 36755 transitions. [2018-07-22 14:51:11,621 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-22 14:51:11,621 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 145 [2018-07-22 14:51:11,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 14:51:11,675 INFO L225 Difference]: With dead ends: 28457 [2018-07-22 14:51:11,675 INFO L226 Difference]: Without dead ends: 16648 [2018-07-22 14:51:11,691 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-07-22 14:51:11,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16648 states. [2018-07-22 14:51:12,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16648 to 15957. [2018-07-22 14:51:12,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15957 states. [2018-07-22 14:51:12,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15957 states to 15957 states and 20133 transitions. [2018-07-22 14:51:12,067 INFO L78 Accepts]: Start accepts. Automaton has 15957 states and 20133 transitions. Word has length 145 [2018-07-22 14:51:12,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 14:51:12,067 INFO L471 AbstractCegarLoop]: Abstraction has 15957 states and 20133 transitions. [2018-07-22 14:51:12,067 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-22 14:51:12,068 INFO L276 IsEmpty]: Start isEmpty. Operand 15957 states and 20133 transitions. [2018-07-22 14:51:12,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2018-07-22 14:51:12,073 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 14:51:12,073 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:51:12,073 INFO L414 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 14:51:12,073 INFO L82 PathProgramCache]: Analyzing trace with hash -1030898957, now seen corresponding path program 1 times [2018-07-22 14:51:12,074 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 14:51:12,074 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 14:51:12,075 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:51:12,075 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:51:12,075 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:51:12,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:51:12,497 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2018-07-22 14:51:12,497 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-22 14:51:12,497 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 14:51:12,505 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:51:12,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:51:12,609 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-22 14:51:12,682 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-22 14:51:12,717 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-22 14:51:12,717 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2018-07-22 14:51:12,718 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-22 14:51:12,718 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-22 14:51:12,718 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-22 14:51:12,718 INFO L87 Difference]: Start difference. First operand 15957 states and 20133 transitions. Second operand 5 states. [2018-07-22 14:51:20,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 14:51:20,807 INFO L93 Difference]: Finished difference Result 55422 states and 71749 transitions. [2018-07-22 14:51:20,808 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-22 14:51:20,808 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 234 [2018-07-22 14:51:20,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 14:51:20,886 INFO L225 Difference]: With dead ends: 55422 [2018-07-22 14:51:20,886 INFO L226 Difference]: Without dead ends: 40158 [2018-07-22 14:51:20,906 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-22 14:51:20,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40158 states. [2018-07-22 14:51:21,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40158 to 31850. [2018-07-22 14:51:21,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31850 states. [2018-07-22 14:51:21,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31850 states to 31850 states and 39137 transitions. [2018-07-22 14:51:21,621 INFO L78 Accepts]: Start accepts. Automaton has 31850 states and 39137 transitions. Word has length 234 [2018-07-22 14:51:21,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 14:51:21,623 INFO L471 AbstractCegarLoop]: Abstraction has 31850 states and 39137 transitions. [2018-07-22 14:51:21,624 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-22 14:51:21,624 INFO L276 IsEmpty]: Start isEmpty. Operand 31850 states and 39137 transitions. [2018-07-22 14:51:21,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2018-07-22 14:51:21,636 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 14:51:21,637 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-07-22 14:51:21,638 INFO L414 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 14:51:21,639 INFO L82 PathProgramCache]: Analyzing trace with hash 1592468008, now seen corresponding path program 1 times [2018-07-22 14:51:21,639 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 14:51:21,639 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 14:51:21,640 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:51:21,640 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:51:21,640 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:51:21,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:51:22,501 INFO L134 CoverageAnalysis]: Checked inductivity of 471 backedges. 366 proven. 4 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2018-07-22 14:51:22,501 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-22 14:51:22,501 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) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-22 14:51:22,507 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:51:22,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:51:22,645 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-22 14:51:22,787 INFO L134 CoverageAnalysis]: Checked inductivity of 471 backedges. 353 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2018-07-22 14:51:22,807 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-22 14:51:22,808 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2018-07-22 14:51:22,808 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-22 14:51:22,809 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-22 14:51:22,809 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-07-22 14:51:22,809 INFO L87 Difference]: Start difference. First operand 31850 states and 39137 transitions. Second operand 6 states. [2018-07-22 14:51:29,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 14:51:29,711 INFO L93 Difference]: Finished difference Result 78916 states and 97171 transitions. [2018-07-22 14:51:29,711 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-22 14:51:29,711 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 457 [2018-07-22 14:51:29,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 14:51:29,795 INFO L225 Difference]: With dead ends: 78916 [2018-07-22 14:51:29,796 INFO L226 Difference]: Without dead ends: 46375 [2018-07-22 14:51:29,825 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 466 GetRequests, 457 SyntacticMatches, 4 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2018-07-22 14:51:29,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46375 states. [2018-07-22 14:51:30,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46375 to 42214. [2018-07-22 14:51:30,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42214 states. [2018-07-22 14:51:30,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42214 states to 42214 states and 47085 transitions. [2018-07-22 14:51:30,373 INFO L78 Accepts]: Start accepts. Automaton has 42214 states and 47085 transitions. Word has length 457 [2018-07-22 14:51:30,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 14:51:30,374 INFO L471 AbstractCegarLoop]: Abstraction has 42214 states and 47085 transitions. [2018-07-22 14:51:30,374 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-22 14:51:30,375 INFO L276 IsEmpty]: Start isEmpty. Operand 42214 states and 47085 transitions. [2018-07-22 14:51:30,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1035 [2018-07-22 14:51:30,413 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 14:51:30,447 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, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 14:51:30,448 INFO L414 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 14:51:30,448 INFO L82 PathProgramCache]: Analyzing trace with hash 841803403, now seen corresponding path program 1 times [2018-07-22 14:51:30,448 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 14:51:30,448 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 14:51:30,449 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:51:30,449 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:51:30,450 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:51:30,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:51:31,650 INFO L134 CoverageAnalysis]: Checked inductivity of 899 backedges. 552 proven. 0 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2018-07-22 14:51:31,650 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 14:51:31,650 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-22 14:51:31,654 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 14:51:31,654 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 14:51:31,654 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 14:51:31,654 INFO L87 Difference]: Start difference. First operand 42214 states and 47085 transitions. Second operand 4 states. [2018-07-22 14:51:35,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 14:51:35,323 INFO L93 Difference]: Finished difference Result 97555 states and 109097 transitions. [2018-07-22 14:51:35,323 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 14:51:35,323 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1034 [2018-07-22 14:51:35,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 14:51:35,431 INFO L225 Difference]: With dead ends: 97555 [2018-07-22 14:51:35,432 INFO L226 Difference]: Without dead ends: 56034 [2018-07-22 14:51:35,497 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 14:51:35,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56034 states. [2018-07-22 14:51:36,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56034 to 55343. [2018-07-22 14:51:36,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55343 states. [2018-07-22 14:51:36,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55343 states to 55343 states and 60214 transitions. [2018-07-22 14:51:36,183 INFO L78 Accepts]: Start accepts. Automaton has 55343 states and 60214 transitions. Word has length 1034 [2018-07-22 14:51:36,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 14:51:36,185 INFO L471 AbstractCegarLoop]: Abstraction has 55343 states and 60214 transitions. [2018-07-22 14:51:36,185 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 14:51:36,185 INFO L276 IsEmpty]: Start isEmpty. Operand 55343 states and 60214 transitions. [2018-07-22 14:51:36,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1127 [2018-07-22 14:51:36,243 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 14:51:36,245 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 14:51:36,245 INFO L414 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 14:51:36,245 INFO L82 PathProgramCache]: Analyzing trace with hash 145227930, now seen corresponding path program 1 times [2018-07-22 14:51:36,245 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 14:51:36,246 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 14:51:36,246 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:51:36,247 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:51:36,247 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:51:36,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:51:37,847 INFO L134 CoverageAnalysis]: Checked inductivity of 1279 backedges. 511 proven. 0 refuted. 0 times theorem prover too weak. 768 trivial. 0 not checked. [2018-07-22 14:51:37,847 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 14:51:37,847 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-22 14:51:37,848 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 14:51:37,848 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 14:51:37,848 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 14:51:37,848 INFO L87 Difference]: Start difference. First operand 55343 states and 60214 transitions. Second operand 4 states. [2018-07-22 14:51:42,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 14:51:42,067 INFO L93 Difference]: Finished difference Result 129341 states and 141691 transitions. [2018-07-22 14:51:42,068 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 14:51:42,068 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1126 [2018-07-22 14:51:42,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 14:51:42,180 INFO L225 Difference]: With dead ends: 129341 [2018-07-22 14:51:42,181 INFO L226 Difference]: Without dead ends: 64298 [2018-07-22 14:51:42,218 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 14:51:42,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64298 states. [2018-07-22 14:51:43,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64298 to 63607. [2018-07-22 14:51:43,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63607 states. [2018-07-22 14:51:43,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63607 states to 63607 states and 67347 transitions. [2018-07-22 14:51:43,209 INFO L78 Accepts]: Start accepts. Automaton has 63607 states and 67347 transitions. Word has length 1126 [2018-07-22 14:51:43,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 14:51:43,211 INFO L471 AbstractCegarLoop]: Abstraction has 63607 states and 67347 transitions. [2018-07-22 14:51:43,211 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 14:51:43,211 INFO L276 IsEmpty]: Start isEmpty. Operand 63607 states and 67347 transitions. [2018-07-22 14:51:43,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1192 [2018-07-22 14:51:43,242 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 14:51:43,244 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:51:43,244 INFO L414 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 14:51:43,245 INFO L82 PathProgramCache]: Analyzing trace with hash 1735673482, now seen corresponding path program 1 times [2018-07-22 14:51:43,245 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 14:51:43,245 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 14:51:43,246 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:51:43,246 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:51:43,246 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:51:43,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:51:44,264 WARN L169 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 8 [2018-07-22 14:51:44,954 INFO L134 CoverageAnalysis]: Checked inductivity of 1680 backedges. 1035 proven. 0 refuted. 0 times theorem prover too weak. 645 trivial. 0 not checked. [2018-07-22 14:51:44,955 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 14:51:44,955 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-22 14:51:44,956 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 14:51:44,956 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 14:51:44,956 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 14:51:44,956 INFO L87 Difference]: Start difference. First operand 63607 states and 67347 transitions. Second operand 4 states. [2018-07-22 14:51:48,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 14:51:48,707 INFO L93 Difference]: Finished difference Result 140341 states and 148927 transitions. [2018-07-22 14:51:48,708 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 14:51:48,708 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1191 [2018-07-22 14:51:48,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 14:51:48,777 INFO L225 Difference]: With dead ends: 140341 [2018-07-22 14:51:48,777 INFO L226 Difference]: Without dead ends: 77427 [2018-07-22 14:51:48,808 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 14:51:48,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77427 states. [2018-07-22 14:51:52,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77427 to 76045. [2018-07-22 14:51:52,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76045 states. [2018-07-22 14:51:52,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76045 states to 76045 states and 79591 transitions. [2018-07-22 14:51:52,139 INFO L78 Accepts]: Start accepts. Automaton has 76045 states and 79591 transitions. Word has length 1191 [2018-07-22 14:51:52,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 14:51:52,140 INFO L471 AbstractCegarLoop]: Abstraction has 76045 states and 79591 transitions. [2018-07-22 14:51:52,140 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 14:51:52,140 INFO L276 IsEmpty]: Start isEmpty. Operand 76045 states and 79591 transitions. [2018-07-22 14:51:52,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1196 [2018-07-22 14:51:52,160 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 14:51:52,161 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 14:51:52,161 INFO L414 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 14:51:52,163 INFO L82 PathProgramCache]: Analyzing trace with hash 1937957301, now seen corresponding path program 1 times [2018-07-22 14:51:52,163 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 14:51:52,164 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 14:51:52,164 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:51:52,165 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:51:52,165 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:51:52,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:51:53,693 INFO L134 CoverageAnalysis]: Checked inductivity of 1457 backedges. 830 proven. 0 refuted. 0 times theorem prover too weak. 627 trivial. 0 not checked. [2018-07-22 14:51:53,694 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 14:51:53,694 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-22 14:51:53,695 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 14:51:53,695 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 14:51:53,695 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 14:51:53,695 INFO L87 Difference]: Start difference. First operand 76045 states and 79591 transitions. Second operand 4 states. [2018-07-22 14:51:58,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 14:51:58,236 INFO L93 Difference]: Finished difference Result 194938 states and 204485 transitions. [2018-07-22 14:51:58,236 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 14:51:58,236 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1195 [2018-07-22 14:51:58,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 14:51:58,350 INFO L225 Difference]: With dead ends: 194938 [2018-07-22 14:51:58,350 INFO L226 Difference]: Without dead ends: 119586 [2018-07-22 14:51:58,390 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 14:51:58,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119586 states. [2018-07-22 14:51:59,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119586 to 102994. [2018-07-22 14:51:59,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102994 states. [2018-07-22 14:51:59,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102994 states to 102994 states and 107141 transitions. [2018-07-22 14:51:59,535 INFO L78 Accepts]: Start accepts. Automaton has 102994 states and 107141 transitions. Word has length 1195 [2018-07-22 14:51:59,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 14:51:59,536 INFO L471 AbstractCegarLoop]: Abstraction has 102994 states and 107141 transitions. [2018-07-22 14:51:59,536 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 14:51:59,536 INFO L276 IsEmpty]: Start isEmpty. Operand 102994 states and 107141 transitions. [2018-07-22 14:51:59,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1210 [2018-07-22 14:51:59,554 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 14:51:59,555 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 14:51:59,555 INFO L414 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 14:51:59,555 INFO L82 PathProgramCache]: Analyzing trace with hash -65336071, now seen corresponding path program 1 times [2018-07-22 14:51:59,556 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 14:51:59,556 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 14:51:59,557 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:51:59,557 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:51:59,557 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:51:59,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:52:01,067 INFO L134 CoverageAnalysis]: Checked inductivity of 1520 backedges. 619 proven. 0 refuted. 0 times theorem prover too weak. 901 trivial. 0 not checked. [2018-07-22 14:52:01,067 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 14:52:01,068 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-22 14:52:01,069 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 14:52:01,069 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 14:52:01,069 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 14:52:01,069 INFO L87 Difference]: Start difference. First operand 102994 states and 107141 transitions. Second operand 4 states. [2018-07-22 14:52:04,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 14:52:04,334 INFO L93 Difference]: Finished difference Result 208059 states and 216372 transitions. [2018-07-22 14:52:04,334 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 14:52:04,334 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1209 [2018-07-22 14:52:04,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 14:52:04,442 INFO L225 Difference]: With dead ends: 208059 [2018-07-22 14:52:04,443 INFO L226 Difference]: Without dead ends: 102986 [2018-07-22 14:52:04,908 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 14:52:04,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102986 states. [2018-07-22 14:52:05,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102986 to 98840. [2018-07-22 14:52:05,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98840 states. [2018-07-22 14:52:05,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98840 states to 98840 states and 102386 transitions. [2018-07-22 14:52:05,693 INFO L78 Accepts]: Start accepts. Automaton has 98840 states and 102386 transitions. Word has length 1209 [2018-07-22 14:52:05,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 14:52:05,694 INFO L471 AbstractCegarLoop]: Abstraction has 98840 states and 102386 transitions. [2018-07-22 14:52:05,694 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 14:52:05,694 INFO L276 IsEmpty]: Start isEmpty. Operand 98840 states and 102386 transitions. [2018-07-22 14:52:05,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1246 [2018-07-22 14:52:05,709 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 14:52:05,710 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, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 14:52:05,710 INFO L414 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 14:52:05,710 INFO L82 PathProgramCache]: Analyzing trace with hash 485557004, now seen corresponding path program 1 times [2018-07-22 14:52:05,710 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 14:52:05,711 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 14:52:05,711 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:52:05,711 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:52:05,712 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:52:05,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:52:09,832 INFO L134 CoverageAnalysis]: Checked inductivity of 2102 backedges. 833 proven. 1055 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2018-07-22 14:52:09,833 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-22 14:52:09,833 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 14:52:09,839 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:52:10,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:52:10,076 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-22 14:52:12,862 INFO L134 CoverageAnalysis]: Checked inductivity of 2102 backedges. 1075 proven. 0 refuted. 0 times theorem prover too weak. 1027 trivial. 0 not checked. [2018-07-22 14:52:12,895 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-22 14:52:12,902 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [11] total 12 [2018-07-22 14:52:12,904 INFO L450 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-07-22 14:52:12,904 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-07-22 14:52:12,904 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-07-22 14:52:12,904 INFO L87 Difference]: Start difference. First operand 98840 states and 102386 transitions. Second operand 12 states. [2018-07-22 14:52:24,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 14:52:24,793 INFO L93 Difference]: Finished difference Result 234224 states and 242629 transitions. [2018-07-22 14:52:24,793 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-07-22 14:52:24,794 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 1245 [2018-07-22 14:52:24,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 14:52:24,916 INFO L225 Difference]: With dead ends: 234224 [2018-07-22 14:52:24,916 INFO L226 Difference]: Without dead ends: 136077 [2018-07-22 14:52:24,961 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 1283 GetRequests, 1258 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=187, Invalid=515, Unknown=0, NotChecked=0, Total=702 [2018-07-22 14:52:25,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136077 states. [2018-07-22 14:52:26,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136077 to 96767. [2018-07-22 14:52:26,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96767 states. [2018-07-22 14:52:26,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96767 states to 96767 states and 99273 transitions. [2018-07-22 14:52:26,153 INFO L78 Accepts]: Start accepts. Automaton has 96767 states and 99273 transitions. Word has length 1245 [2018-07-22 14:52:26,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 14:52:26,154 INFO L471 AbstractCegarLoop]: Abstraction has 96767 states and 99273 transitions. [2018-07-22 14:52:26,154 INFO L472 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-07-22 14:52:26,154 INFO L276 IsEmpty]: Start isEmpty. Operand 96767 states and 99273 transitions. [2018-07-22 14:52:26,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1259 [2018-07-22 14:52:26,167 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 14:52:26,168 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, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:52:26,168 INFO L414 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 14:52:26,168 INFO L82 PathProgramCache]: Analyzing trace with hash 553529017, now seen corresponding path program 1 times [2018-07-22 14:52:26,168 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 14:52:26,169 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 14:52:26,169 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:52:26,169 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:52:26,170 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:52:26,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:52:27,873 INFO L134 CoverageAnalysis]: Checked inductivity of 2143 backedges. 1113 proven. 0 refuted. 0 times theorem prover too weak. 1030 trivial. 0 not checked. [2018-07-22 14:52:27,873 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 14:52:27,873 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-22 14:52:27,874 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 14:52:27,874 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 14:52:27,874 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 14:52:27,874 INFO L87 Difference]: Start difference. First operand 96767 states and 99273 transitions. Second operand 4 states. [2018-07-22 14:52:31,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 14:52:31,234 INFO L93 Difference]: Finished difference Result 212187 states and 217894 transitions. [2018-07-22 14:52:31,234 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 14:52:31,235 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1258 [2018-07-22 14:52:31,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 14:52:31,349 INFO L225 Difference]: With dead ends: 212187 [2018-07-22 14:52:31,349 INFO L226 Difference]: Without dead ends: 107120 [2018-07-22 14:52:31,398 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 5 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 14:52:31,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107120 states. [2018-07-22 14:52:32,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107120 to 105047. [2018-07-22 14:52:32,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105047 states. [2018-07-22 14:52:32,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105047 states to 105047 states and 107224 transitions. [2018-07-22 14:52:32,522 INFO L78 Accepts]: Start accepts. Automaton has 105047 states and 107224 transitions. Word has length 1258 [2018-07-22 14:52:32,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 14:52:32,523 INFO L471 AbstractCegarLoop]: Abstraction has 105047 states and 107224 transitions. [2018-07-22 14:52:32,523 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 14:52:32,523 INFO L276 IsEmpty]: Start isEmpty. Operand 105047 states and 107224 transitions. [2018-07-22 14:52:32,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1268 [2018-07-22 14:52:32,534 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 14:52:32,535 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:52:32,535 INFO L414 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 14:52:32,536 INFO L82 PathProgramCache]: Analyzing trace with hash 2033787139, now seen corresponding path program 1 times [2018-07-22 14:52:32,537 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 14:52:32,537 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 14:52:32,537 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:52:32,537 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:52:32,538 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:52:32,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:52:33,855 INFO L134 CoverageAnalysis]: Checked inductivity of 1619 backedges. 1098 proven. 0 refuted. 0 times theorem prover too weak. 521 trivial. 0 not checked. [2018-07-22 14:52:33,856 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 14:52:33,856 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-22 14:52:33,857 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 14:52:33,857 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 14:52:33,857 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 14:52:33,857 INFO L87 Difference]: Start difference. First operand 105047 states and 107224 transitions. Second operand 4 states. [2018-07-22 14:52:38,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 14:52:38,644 INFO L93 Difference]: Finished difference Result 214238 states and 218664 transitions. [2018-07-22 14:52:38,644 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 14:52:38,644 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1267 [2018-07-22 14:52:38,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 14:52:38,740 INFO L225 Difference]: With dead ends: 214238 [2018-07-22 14:52:38,740 INFO L226 Difference]: Without dead ends: 109192 [2018-07-22 14:52:38,784 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 14:52:38,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109192 states. [2018-07-22 14:52:39,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109192 to 105046. [2018-07-22 14:52:39,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105046 states. [2018-07-22 14:52:39,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105046 states to 105046 states and 107130 transitions. [2018-07-22 14:52:39,655 INFO L78 Accepts]: Start accepts. Automaton has 105046 states and 107130 transitions. Word has length 1267 [2018-07-22 14:52:39,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 14:52:39,656 INFO L471 AbstractCegarLoop]: Abstraction has 105046 states and 107130 transitions. [2018-07-22 14:52:39,656 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 14:52:39,656 INFO L276 IsEmpty]: Start isEmpty. Operand 105046 states and 107130 transitions. [2018-07-22 14:52:40,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1304 [2018-07-22 14:52:40,095 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 14:52:40,096 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 14:52:40,096 INFO L414 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 14:52:40,097 INFO L82 PathProgramCache]: Analyzing trace with hash -874116444, now seen corresponding path program 1 times [2018-07-22 14:52:40,097 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 14:52:40,097 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 14:52:40,098 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:52:40,098 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:52:40,098 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:52:40,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:52:41,598 INFO L134 CoverageAnalysis]: Checked inductivity of 1768 backedges. 1033 proven. 157 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2018-07-22 14:52:41,599 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-22 14:52:41,599 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 14:52:41,605 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:52:41,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:52:41,838 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-22 14:52:43,017 INFO L134 CoverageAnalysis]: Checked inductivity of 1768 backedges. 1033 proven. 157 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2018-07-22 14:52:43,038 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-22 14:52:43,038 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 7 [2018-07-22 14:52:43,039 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-22 14:52:43,040 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-22 14:52:43,040 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-07-22 14:52:43,040 INFO L87 Difference]: Start difference. First operand 105046 states and 107130 transitions. Second operand 7 states. [2018-07-22 14:52:51,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 14:52:51,487 INFO L93 Difference]: Finished difference Result 230131 states and 234842 transitions. [2018-07-22 14:52:51,487 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-22 14:52:51,487 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1303 [2018-07-22 14:52:51,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 14:52:51,626 INFO L225 Difference]: With dead ends: 230131 [2018-07-22 14:52:51,626 INFO L226 Difference]: Without dead ends: 123704 [2018-07-22 14:52:51,677 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 1312 GetRequests, 1304 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2018-07-22 14:52:51,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123704 states. [2018-07-22 14:52:52,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123704 to 110573. [2018-07-22 14:52:52,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110573 states. [2018-07-22 14:52:52,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110573 states to 110573 states and 112698 transitions. [2018-07-22 14:52:52,965 INFO L78 Accepts]: Start accepts. Automaton has 110573 states and 112698 transitions. Word has length 1303 [2018-07-22 14:52:52,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 14:52:52,965 INFO L471 AbstractCegarLoop]: Abstraction has 110573 states and 112698 transitions. [2018-07-22 14:52:52,965 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-22 14:52:52,965 INFO L276 IsEmpty]: Start isEmpty. Operand 110573 states and 112698 transitions. [2018-07-22 14:52:52,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1422 [2018-07-22 14:52:52,982 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 14:52:52,983 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 14:52:52,983 INFO L414 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 14:52:52,983 INFO L82 PathProgramCache]: Analyzing trace with hash 92821725, now seen corresponding path program 1 times [2018-07-22 14:52:52,984 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 14:52:52,984 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 14:52:52,984 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:52:52,985 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:52:52,985 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:52:53,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:52:53,901 WARN L169 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 6 [2018-07-22 14:52:56,872 INFO L134 CoverageAnalysis]: Checked inductivity of 2308 backedges. 1283 proven. 5 refuted. 0 times theorem prover too weak. 1020 trivial. 0 not checked. [2018-07-22 14:52:56,872 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-22 14:52:56,872 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 14:52:56,878 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:52:57,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:52:57,141 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-22 14:52:57,825 INFO L134 CoverageAnalysis]: Checked inductivity of 2308 backedges. 1173 proven. 0 refuted. 0 times theorem prover too weak. 1135 trivial. 0 not checked. [2018-07-22 14:52:57,846 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-22 14:52:57,846 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2018-07-22 14:52:57,847 INFO L450 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-22 14:52:57,847 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-22 14:52:57,847 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-07-22 14:52:57,847 INFO L87 Difference]: Start difference. First operand 110573 states and 112698 transitions. Second operand 8 states. [2018-07-22 14:53:02,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 14:53:02,191 INFO L93 Difference]: Finished difference Result 219285 states and 223527 transitions. [2018-07-22 14:53:02,191 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-22 14:53:02,191 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1421 [2018-07-22 14:53:02,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 14:53:02,291 INFO L225 Difference]: With dead ends: 219285 [2018-07-22 14:53:02,291 INFO L226 Difference]: Without dead ends: 109405 [2018-07-22 14:53:02,335 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 1434 GetRequests, 1424 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2018-07-22 14:53:02,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109405 states. [2018-07-22 14:53:03,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109405 to 109189. [2018-07-22 14:53:03,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109189 states. [2018-07-22 14:53:03,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109189 states to 109189 states and 111167 transitions. [2018-07-22 14:53:03,585 INFO L78 Accepts]: Start accepts. Automaton has 109189 states and 111167 transitions. Word has length 1421 [2018-07-22 14:53:03,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 14:53:03,586 INFO L471 AbstractCegarLoop]: Abstraction has 109189 states and 111167 transitions. [2018-07-22 14:53:03,586 INFO L472 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-22 14:53:03,586 INFO L276 IsEmpty]: Start isEmpty. Operand 109189 states and 111167 transitions. [2018-07-22 14:53:03,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1429 [2018-07-22 14:53:03,600 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 14:53:03,601 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 14:53:03,601 INFO L414 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 14:53:03,601 INFO L82 PathProgramCache]: Analyzing trace with hash -1980628808, now seen corresponding path program 1 times [2018-07-22 14:53:03,601 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 14:53:03,601 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 14:53:03,602 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:53:03,602 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:53:03,602 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:53:03,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:53:04,553 WARN L169 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 7 [2018-07-22 14:53:04,819 WARN L169 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 7 [2018-07-22 14:53:05,713 INFO L134 CoverageAnalysis]: Checked inductivity of 2381 backedges. 1649 proven. 105 refuted. 0 times theorem prover too weak. 627 trivial. 0 not checked. [2018-07-22 14:53:05,713 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-22 14:53:05,713 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 14:53:05,899 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:53:06,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:53:06,217 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-22 14:53:08,133 WARN L169 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 69 DAG size of output: 29 [2018-07-22 14:53:10,321 INFO L134 CoverageAnalysis]: Checked inductivity of 2381 backedges. 1326 proven. 154 refuted. 0 times theorem prover too weak. 901 trivial. 0 not checked. [2018-07-22 14:53:10,342 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-22 14:53:10,342 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2018-07-22 14:53:10,343 INFO L450 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-22 14:53:10,343 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-22 14:53:10,343 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-07-22 14:53:10,344 INFO L87 Difference]: Start difference. First operand 109189 states and 111167 transitions. Second operand 8 states. [2018-07-22 14:53:55,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 14:53:55,385 INFO L93 Difference]: Finished difference Result 233580 states and 237792 transitions. [2018-07-22 14:53:55,385 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-07-22 14:53:55,385 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1428 [2018-07-22 14:53:55,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 14:53:55,495 INFO L225 Difference]: With dead ends: 233580 [2018-07-22 14:53:55,495 INFO L226 Difference]: Without dead ends: 125084 [2018-07-22 14:53:55,530 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 1442 GetRequests, 1431 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2018-07-22 14:53:55,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125084 states. [2018-07-22 14:53:56,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125084 to 108498. [2018-07-22 14:53:56,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108498 states. [2018-07-22 14:53:56,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108498 states to 108498 states and 110423 transitions. [2018-07-22 14:53:56,943 INFO L78 Accepts]: Start accepts. Automaton has 108498 states and 110423 transitions. Word has length 1428 [2018-07-22 14:53:56,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 14:53:56,944 INFO L471 AbstractCegarLoop]: Abstraction has 108498 states and 110423 transitions. [2018-07-22 14:53:56,944 INFO L472 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-22 14:53:56,944 INFO L276 IsEmpty]: Start isEmpty. Operand 108498 states and 110423 transitions. [2018-07-22 14:53:56,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1455 [2018-07-22 14:53:56,959 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 14:53:56,959 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:53:56,960 INFO L414 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 14:53:56,960 INFO L82 PathProgramCache]: Analyzing trace with hash -655601417, now seen corresponding path program 1 times [2018-07-22 14:53:56,960 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 14:53:56,960 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 14:53:56,961 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:53:56,961 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:53:56,961 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:53:57,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:53:58,337 WARN L169 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 20 Received shutdown request... [2018-07-22 14:54:04,389 INFO L134 CoverageAnalysis]: Checked inductivity of 1989 backedges. 1032 proven. 379 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2018-07-22 14:54:04,389 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-22 14:54:04,389 INFO L219 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-22 14:54:04,395 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:54:04,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:54:04,658 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-22 14:54:04,725 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-07-22 14:54:04,926 WARN L512 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-22 14:54:04,926 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-22 14:54:04,930 WARN L202 ceAbstractionStarter]: Timeout [2018-07-22 14:54:04,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.07 02:54:04 BoogieIcfgContainer [2018-07-22 14:54:04,931 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-22 14:54:04,932 INFO L168 Benchmark]: Toolchain (without parser) took 216577.43 ms. Allocated memory was 302.0 MB in the beginning and 2.6 GB in the end (delta: 2.3 GB). Free memory was 238.2 MB in the beginning and 1.6 GB in the end (delta: -1.4 GB). Peak memory consumption was 952.0 MB. Max. memory is 5.3 GB. [2018-07-22 14:54:04,933 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 302.0 MB. Free memory is still 267.6 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-07-22 14:54:04,933 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2183.29 ms. Allocated memory was 302.0 MB in the beginning and 333.4 MB in the end (delta: 31.5 MB). Free memory was 237.2 MB in the beginning and 176.3 MB in the end (delta: 60.9 MB). Peak memory consumption was 92.4 MB. Max. memory is 5.3 GB. [2018-07-22 14:54:04,934 INFO L168 Benchmark]: Boogie Procedure Inliner took 430.97 ms. Allocated memory was 333.4 MB in the beginning and 391.6 MB in the end (delta: 58.2 MB). Free memory was 176.3 MB in the beginning and 300.1 MB in the end (delta: -123.8 MB). Peak memory consumption was 30.4 MB. Max. memory is 5.3 GB. [2018-07-22 14:54:04,934 INFO L168 Benchmark]: Boogie Preprocessor took 768.14 ms. Allocated memory was 391.6 MB in the beginning and 532.2 MB in the end (delta: 140.5 MB). Free memory was 300.1 MB in the beginning and 441.2 MB in the end (delta: -141.1 MB). Peak memory consumption was 30.8 MB. Max. memory is 5.3 GB. [2018-07-22 14:54:04,935 INFO L168 Benchmark]: RCFGBuilder took 8092.44 ms. Allocated memory was 532.2 MB in the beginning and 648.0 MB in the end (delta: 115.9 MB). Free memory was 441.2 MB in the beginning and 364.7 MB in the end (delta: 76.5 MB). Peak memory consumption was 196.4 MB. Max. memory is 5.3 GB. [2018-07-22 14:54:04,936 INFO L168 Benchmark]: TraceAbstraction took 205092.15 ms. Allocated memory was 648.0 MB in the beginning and 2.6 GB in the end (delta: 2.0 GB). Free memory was 364.7 MB in the beginning and 1.6 GB in the end (delta: -1.2 GB). Peak memory consumption was 732.4 MB. Max. memory is 5.3 GB. [2018-07-22 14:54:04,940 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 302.0 MB. Free memory is still 267.6 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 2183.29 ms. Allocated memory was 302.0 MB in the beginning and 333.4 MB in the end (delta: 31.5 MB). Free memory was 237.2 MB in the beginning and 176.3 MB in the end (delta: 60.9 MB). Peak memory consumption was 92.4 MB. Max. memory is 5.3 GB. * Boogie Procedure Inliner took 430.97 ms. Allocated memory was 333.4 MB in the beginning and 391.6 MB in the end (delta: 58.2 MB). Free memory was 176.3 MB in the beginning and 300.1 MB in the end (delta: -123.8 MB). Peak memory consumption was 30.4 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 768.14 ms. Allocated memory was 391.6 MB in the beginning and 532.2 MB in the end (delta: 140.5 MB). Free memory was 300.1 MB in the beginning and 441.2 MB in the end (delta: -141.1 MB). Peak memory consumption was 30.8 MB. Max. memory is 5.3 GB. * RCFGBuilder took 8092.44 ms. Allocated memory was 532.2 MB in the beginning and 648.0 MB in the end (delta: 115.9 MB). Free memory was 441.2 MB in the beginning and 364.7 MB in the end (delta: 76.5 MB). Peak memory consumption was 196.4 MB. Max. memory is 5.3 GB. * TraceAbstraction took 205092.15 ms. Allocated memory was 648.0 MB in the beginning and 2.6 GB in the end (delta: 2.0 GB). Free memory was 364.7 MB in the beginning and 1.6 GB in the end (delta: -1.2 GB). Peak memory consumption was 732.4 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 159]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 159). Cancelled while BasicCegarLoop was analyzing trace of length 1455 with TraceHistMax 6, while TraceCheckSpWp was constructing forward predicates, while XnfDer was eliminating 1 quantified variables from 2 xjuncts. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 758 locations, 1 error locations. TIMEOUT Result, 205.0s OverallTime, 18 OverallIterations, 8 TraceHistogramMax, 144.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 9174 SDtfs, 43922 SDslu, 1769 SDs, 0 SdLazy, 112940 SolverSat, 13921 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 116.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6227 GetRequests, 6127 SyntacticMatches, 17 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 5.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=110573occurred in iteration=15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 16.2s AutomataMinimizationTime, 17 MinimizatonAttempts, 112124 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.6s SsaConstructionTime, 2.4s SatisfiabilityAnalysisTime, 19.3s InterpolantComputationTime, 20889 NumberOfCodeBlocks, 20889 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 20866 ConstructedInterpolants, 257 QuantifiedInterpolants, 56109781 SizeOfPredicates, 5 NumberOfNonLiveVariables, 7067 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 23 InterpolantComputations, 15 PerfectInterpolantSequences, 27255/28897 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem18_label14_true-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-22_14-54-04-957.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem18_label14_true-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-22_14-54-04-957.csv Completed graceful shutdown