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/Problem13_label00_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-71425fa [2018-07-22 12:12:50,434 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-22 12:12:50,437 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-22 12:12:50,448 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-22 12:12:50,448 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-22 12:12:50,449 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-22 12:12:50,451 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-22 12:12:50,457 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-22 12:12:50,459 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-22 12:12:50,459 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-22 12:12:50,462 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-22 12:12:50,463 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-22 12:12:50,464 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-22 12:12:50,464 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-22 12:12:50,468 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-22 12:12:50,469 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-22 12:12:50,469 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-22 12:12:50,482 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-22 12:12:50,484 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-22 12:12:50,486 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-22 12:12:50,487 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-22 12:12:50,488 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-22 12:12:50,494 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-22 12:12:50,495 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-22 12:12:50,495 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-22 12:12:50,496 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-22 12:12:50,497 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-22 12:12:50,497 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-22 12:12:50,498 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-22 12:12:50,499 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-22 12:12:50,499 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-22 12:12:50,500 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-07-22 12:12:50,502 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 12:12:50,523 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-22 12:12:50,523 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-22 12:12:50,524 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-22 12:12:50,524 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-07-22 12:12:50,525 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-07-22 12:12:50,525 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-07-22 12:12:50,525 INFO L133 SettingsManager]: * Use SBE=true [2018-07-22 12:12:50,525 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-22 12:12:50,526 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-22 12:12:50,526 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-22 12:12:50,526 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-22 12:12:50,526 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-22 12:12:50,526 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-22 12:12:50,526 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-22 12:12:50,527 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-22 12:12:50,528 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-22 12:12:50,528 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-22 12:12:50,528 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-22 12:12:50,528 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-22 12:12:50,529 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-22 12:12:50,529 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-22 12:12:50,529 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-07-22 12:12:50,529 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-22 12:12:50,529 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-22 12:12:50,530 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-07-22 12:12:50,530 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-22 12:12:50,530 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-22 12:12:50,530 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-22 12:12:50,530 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-22 12:12:50,585 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-22 12:12:50,601 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-22 12:12:50,606 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-22 12:12:50,608 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-22 12:12:50,609 INFO L276 PluginConnector]: CDTParser initialized [2018-07-22 12:12:50,609 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label00_true-unreach-call.c [2018-07-22 12:12:50,974 INFO L220 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/973f764bd/257f1b58ce964b5b9303d99ff9ba3851/FLAGe30b3facc [2018-07-22 12:12:51,491 INFO L276 CDTParser]: Found 1 translation units. [2018-07-22 12:12:51,492 INFO L158 CDTParser]: Scanning /storage/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label00_true-unreach-call.c [2018-07-22 12:12:51,551 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/973f764bd/257f1b58ce964b5b9303d99ff9ba3851/FLAGe30b3facc [2018-07-22 12:12:51,568 INFO L332 CDTParser]: Successfully deleted /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/973f764bd/257f1b58ce964b5b9303d99ff9ba3851 [2018-07-22 12:12:51,580 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-22 12:12:51,587 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-22 12:12:51,590 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-22 12:12:51,591 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-22 12:12:51,598 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-22 12:12:51,599 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 12:12:51" (1/1) ... [2018-07-22 12:12:51,603 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4424207d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:12:51, skipping insertion in model container [2018-07-22 12:12:51,603 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 12:12:51" (1/1) ... [2018-07-22 12:12:52,016 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-22 12:12:53,298 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-22 12:12:53,322 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-22 12:12:54,374 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-22 12:12:54,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:12:54 WrapperNode [2018-07-22 12:12:54,757 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-22 12:12:54,758 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-22 12:12:54,758 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-22 12:12:54,759 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-22 12:12:54,769 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:12:54" (1/1) ... [2018-07-22 12:12:54,890 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:12:54" (1/1) ... [2018-07-22 12:12:55,464 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-22 12:12:55,464 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-22 12:12:55,464 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-22 12:12:55,464 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-22 12:12:55,471 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:12:54" (1/1) ... [2018-07-22 12:12:55,472 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:12:54" (1/1) ... [2018-07-22 12:12:55,541 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:12:54" (1/1) ... [2018-07-22 12:12:55,542 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:12:54" (1/1) ... [2018-07-22 12:12:55,698 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:12:54" (1/1) ... [2018-07-22 12:12:57,211 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:12:54" (1/1) ... [2018-07-22 12:12:57,260 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:12:54" (1/1) ... [2018-07-22 12:12:57,314 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-22 12:12:57,314 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-22 12:12:57,314 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-22 12:12:57,315 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-22 12:12:57,317 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:12:54" (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 12:12:57,382 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-07-22 12:12:57,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-22 12:12:57,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-22 12:13:08,853 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-22 12:13:08,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:13:08 BoogieIcfgContainer [2018-07-22 12:13:08,854 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-22 12:13:08,855 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-22 12:13:08,855 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-22 12:13:08,858 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-22 12:13:08,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 12:12:51" (1/3) ... [2018-07-22 12:13:08,859 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@483f2616 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 12:13:08, skipping insertion in model container [2018-07-22 12:13:08,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:12:54" (2/3) ... [2018-07-22 12:13:08,860 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@483f2616 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 12:13:08, skipping insertion in model container [2018-07-22 12:13:08,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:13:08" (3/3) ... [2018-07-22 12:13:08,862 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label00_true-unreach-call.c [2018-07-22 12:13:08,871 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-22 12:13:08,882 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-22 12:13:08,949 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-22 12:13:08,950 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-22 12:13:08,950 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-22 12:13:08,950 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-22 12:13:08,950 INFO L376 AbstractCegarLoop]: Backedges is TWOTRACK [2018-07-22 12:13:08,950 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-22 12:13:08,951 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-22 12:13:08,951 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-22 12:13:08,951 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-22 12:13:09,002 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states. [2018-07-22 12:13:09,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-07-22 12:13:09,011 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 12:13:09,013 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] [2018-07-22 12:13:09,013 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 12:13:09,018 INFO L82 PathProgramCache]: Analyzing trace with hash -387853398, now seen corresponding path program 1 times [2018-07-22 12:13:09,021 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 12:13:09,021 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 12:13:09,064 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:13:09,064 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 12:13:09,065 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:13:09,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 12:13:09,460 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 12:13:09,462 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 12:13:09,462 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-22 12:13:09,466 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 12:13:09,480 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 12:13:09,481 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 12:13:09,483 INFO L87 Difference]: Start difference. First operand 1099 states. Second operand 4 states. [2018-07-22 12:13:23,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 12:13:23,252 INFO L93 Difference]: Finished difference Result 3896 states and 7286 transitions. [2018-07-22 12:13:23,252 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 12:13:23,254 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 38 [2018-07-22 12:13:23,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 12:13:23,295 INFO L225 Difference]: With dead ends: 3896 [2018-07-22 12:13:23,296 INFO L226 Difference]: Without dead ends: 2790 [2018-07-22 12:13:23,309 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 12:13:23,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2790 states. [2018-07-22 12:13:23,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2790 to 1945. [2018-07-22 12:13:23,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1945 states. [2018-07-22 12:13:23,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1945 states to 1945 states and 3412 transitions. [2018-07-22 12:13:23,493 INFO L78 Accepts]: Start accepts. Automaton has 1945 states and 3412 transitions. Word has length 38 [2018-07-22 12:13:23,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 12:13:23,494 INFO L471 AbstractCegarLoop]: Abstraction has 1945 states and 3412 transitions. [2018-07-22 12:13:23,494 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 12:13:23,494 INFO L276 IsEmpty]: Start isEmpty. Operand 1945 states and 3412 transitions. [2018-07-22 12:13:23,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2018-07-22 12:13:23,498 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 12:13:23,499 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:13:23,499 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 12:13:23,499 INFO L82 PathProgramCache]: Analyzing trace with hash -1177519246, now seen corresponding path program 1 times [2018-07-22 12:13:23,499 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 12:13:23,500 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 12:13:23,503 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:13:23,504 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 12:13:23,504 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:13:23,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 12:13:23,767 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-22 12:13:23,768 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 12:13:23,768 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-22 12:13:23,770 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 12:13:23,770 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 12:13:23,771 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 12:13:23,771 INFO L87 Difference]: Start difference. First operand 1945 states and 3412 transitions. Second operand 4 states. [2018-07-22 12:13:30,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 12:13:30,634 INFO L93 Difference]: Finished difference Result 5486 states and 9768 transitions. [2018-07-22 12:13:30,638 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-22 12:13:30,638 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 104 [2018-07-22 12:13:30,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 12:13:30,659 INFO L225 Difference]: With dead ends: 5486 [2018-07-22 12:13:30,660 INFO L226 Difference]: Without dead ends: 3543 [2018-07-22 12:13:30,663 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 12:13:30,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3543 states. [2018-07-22 12:13:30,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3543 to 3542. [2018-07-22 12:13:30,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3542 states. [2018-07-22 12:13:30,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3542 states to 3542 states and 5575 transitions. [2018-07-22 12:13:30,765 INFO L78 Accepts]: Start accepts. Automaton has 3542 states and 5575 transitions. Word has length 104 [2018-07-22 12:13:30,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 12:13:30,766 INFO L471 AbstractCegarLoop]: Abstraction has 3542 states and 5575 transitions. [2018-07-22 12:13:30,766 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 12:13:30,766 INFO L276 IsEmpty]: Start isEmpty. Operand 3542 states and 5575 transitions. [2018-07-22 12:13:30,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2018-07-22 12:13:30,773 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 12:13:30,773 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:13:30,773 INFO L414 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 12:13:30,773 INFO L82 PathProgramCache]: Analyzing trace with hash 1071850957, now seen corresponding path program 1 times [2018-07-22 12:13:30,774 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 12:13:30,774 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 12:13:30,775 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:13:30,775 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 12:13:30,775 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:13:30,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 12:13:30,956 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-22 12:13:30,957 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 12:13:30,957 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-22 12:13:30,957 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 12:13:30,957 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 12:13:30,958 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 12:13:30,958 INFO L87 Difference]: Start difference. First operand 3542 states and 5575 transitions. Second operand 4 states. [2018-07-22 12:13:40,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 12:13:40,648 INFO L93 Difference]: Finished difference Result 13432 states and 21347 transitions. [2018-07-22 12:13:40,648 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 12:13:40,648 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 106 [2018-07-22 12:13:40,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 12:13:40,693 INFO L225 Difference]: With dead ends: 13432 [2018-07-22 12:13:40,694 INFO L226 Difference]: Without dead ends: 9892 [2018-07-22 12:13:40,700 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 12:13:40,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9892 states. [2018-07-22 12:13:40,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9892 to 9885. [2018-07-22 12:13:40,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9885 states. [2018-07-22 12:13:40,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9885 states to 9885 states and 14067 transitions. [2018-07-22 12:13:40,943 INFO L78 Accepts]: Start accepts. Automaton has 9885 states and 14067 transitions. Word has length 106 [2018-07-22 12:13:40,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 12:13:40,944 INFO L471 AbstractCegarLoop]: Abstraction has 9885 states and 14067 transitions. [2018-07-22 12:13:40,944 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 12:13:40,944 INFO L276 IsEmpty]: Start isEmpty. Operand 9885 states and 14067 transitions. [2018-07-22 12:13:40,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2018-07-22 12:13:40,951 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 12:13:40,951 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:13:40,951 INFO L414 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 12:13:40,952 INFO L82 PathProgramCache]: Analyzing trace with hash 508759999, now seen corresponding path program 1 times [2018-07-22 12:13:40,952 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 12:13:40,952 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 12:13:40,953 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:13:40,953 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 12:13:40,953 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:13:41,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 12:13:41,491 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-22 12:13:41,491 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 12:13:41,491 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-22 12:13:41,492 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-22 12:13:41,492 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-22 12:13:41,492 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-07-22 12:13:41,493 INFO L87 Difference]: Start difference. First operand 9885 states and 14067 transitions. Second operand 6 states. [2018-07-22 12:13:55,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 12:13:55,305 INFO L93 Difference]: Finished difference Result 40352 states and 56790 transitions. [2018-07-22 12:13:55,307 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-22 12:13:55,307 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 150 [2018-07-22 12:13:55,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 12:13:55,414 INFO L225 Difference]: With dead ends: 40352 [2018-07-22 12:13:55,414 INFO L226 Difference]: Without dead ends: 30469 [2018-07-22 12:13:55,428 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-07-22 12:13:55,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30469 states. [2018-07-22 12:13:55,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30469 to 29624. [2018-07-22 12:13:55,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29624 states. [2018-07-22 12:13:55,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29624 states to 29624 states and 36220 transitions. [2018-07-22 12:13:55,951 INFO L78 Accepts]: Start accepts. Automaton has 29624 states and 36220 transitions. Word has length 150 [2018-07-22 12:13:55,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 12:13:55,952 INFO L471 AbstractCegarLoop]: Abstraction has 29624 states and 36220 transitions. [2018-07-22 12:13:55,952 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-22 12:13:55,952 INFO L276 IsEmpty]: Start isEmpty. Operand 29624 states and 36220 transitions. [2018-07-22 12:13:55,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2018-07-22 12:13:55,955 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 12:13:55,955 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:13:55,956 INFO L414 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 12:13:55,956 INFO L82 PathProgramCache]: Analyzing trace with hash -1624504843, now seen corresponding path program 1 times [2018-07-22 12:13:55,956 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 12:13:55,956 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 12:13:55,958 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:13:55,958 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 12:13:55,958 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:13:56,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 12:13:56,427 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-22 12:13:56,427 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 12:13:56,427 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-22 12:13:56,428 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-22 12:13:56,428 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-22 12:13:56,428 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-22 12:13:56,429 INFO L87 Difference]: Start difference. First operand 29624 states and 36220 transitions. Second operand 5 states. [2018-07-22 12:14:12,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 12:14:12,182 INFO L93 Difference]: Finished difference Result 87853 states and 109925 transitions. [2018-07-22 12:14:12,183 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-22 12:14:12,183 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 164 [2018-07-22 12:14:12,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 12:14:12,265 INFO L225 Difference]: With dead ends: 87853 [2018-07-22 12:14:12,266 INFO L226 Difference]: Without dead ends: 58231 [2018-07-22 12:14:12,291 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 12:14:12,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58231 states. [2018-07-22 12:14:12,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58231 to 51735. [2018-07-22 12:14:12,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51735 states. [2018-07-22 12:14:13,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51735 states to 51735 states and 62342 transitions. [2018-07-22 12:14:13,039 INFO L78 Accepts]: Start accepts. Automaton has 51735 states and 62342 transitions. Word has length 164 [2018-07-22 12:14:13,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 12:14:13,040 INFO L471 AbstractCegarLoop]: Abstraction has 51735 states and 62342 transitions. [2018-07-22 12:14:13,040 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-22 12:14:13,040 INFO L276 IsEmpty]: Start isEmpty. Operand 51735 states and 62342 transitions. [2018-07-22 12:14:13,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2018-07-22 12:14:13,044 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 12:14:13,044 INFO L358 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 12:14:13,045 INFO L414 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 12:14:13,048 INFO L82 PathProgramCache]: Analyzing trace with hash 1707124557, now seen corresponding path program 1 times [2018-07-22 12:14:13,048 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 12:14:13,048 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 12:14:13,049 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:14:13,049 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 12:14:13,049 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:14:13,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 12:14:13,484 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2018-07-22 12:14:13,484 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 12:14:13,484 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-22 12:14:13,485 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-22 12:14:13,485 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-22 12:14:13,485 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-22 12:14:13,485 INFO L87 Difference]: Start difference. First operand 51735 states and 62342 transitions. Second operand 3 states. [2018-07-22 12:14:19,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 12:14:19,545 INFO L93 Difference]: Finished difference Result 102677 states and 123876 transitions. [2018-07-22 12:14:19,545 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-22 12:14:19,546 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 252 [2018-07-22 12:14:19,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 12:14:19,594 INFO L225 Difference]: With dead ends: 102677 [2018-07-22 12:14:19,594 INFO L226 Difference]: Without dead ends: 50944 [2018-07-22 12:14:19,639 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 4 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-22 12:14:19,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50944 states. [2018-07-22 12:14:20,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50944 to 50943. [2018-07-22 12:14:20,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50943 states. [2018-07-22 12:14:20,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50943 states to 50943 states and 58781 transitions. [2018-07-22 12:14:20,545 INFO L78 Accepts]: Start accepts. Automaton has 50943 states and 58781 transitions. Word has length 252 [2018-07-22 12:14:20,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 12:14:20,546 INFO L471 AbstractCegarLoop]: Abstraction has 50943 states and 58781 transitions. [2018-07-22 12:14:20,546 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-22 12:14:20,546 INFO L276 IsEmpty]: Start isEmpty. Operand 50943 states and 58781 transitions. [2018-07-22 12:14:20,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2018-07-22 12:14:20,556 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 12:14:20,557 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, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 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 12:14:20,557 INFO L414 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 12:14:20,558 INFO L82 PathProgramCache]: Analyzing trace with hash -329229739, now seen corresponding path program 1 times [2018-07-22 12:14:20,558 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 12:14:20,558 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 12:14:20,559 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:14:20,559 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 12:14:20,559 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:14:20,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 12:14:21,001 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 202 proven. 4 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2018-07-22 12:14:21,001 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-22 12:14:21,002 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 12:14:21,009 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 12:14:21,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 12:14:21,201 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-22 12:14:21,390 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 298 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2018-07-22 12:14:21,411 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-22 12:14:21,411 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2018-07-22 12:14:21,413 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 12:14:21,413 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 12:14:21,413 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 12:14:21,413 INFO L87 Difference]: Start difference. First operand 50943 states and 58781 transitions. Second operand 4 states. [2018-07-22 12:14:32,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 12:14:32,237 INFO L93 Difference]: Finished difference Result 121626 states and 139080 transitions. [2018-07-22 12:14:32,237 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 12:14:32,238 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 318 [2018-07-22 12:14:32,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 12:14:32,352 INFO L225 Difference]: With dead ends: 121626 [2018-07-22 12:14:32,353 INFO L226 Difference]: Without dead ends: 70685 [2018-07-22 12:14:32,380 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 318 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 12:14:32,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70685 states. [2018-07-22 12:14:33,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70685 to 60398. [2018-07-22 12:14:33,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60398 states. [2018-07-22 12:14:33,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60398 states to 60398 states and 68667 transitions. [2018-07-22 12:14:33,564 INFO L78 Accepts]: Start accepts. Automaton has 60398 states and 68667 transitions. Word has length 318 [2018-07-22 12:14:33,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 12:14:33,571 INFO L471 AbstractCegarLoop]: Abstraction has 60398 states and 68667 transitions. [2018-07-22 12:14:33,571 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 12:14:33,571 INFO L276 IsEmpty]: Start isEmpty. Operand 60398 states and 68667 transitions. [2018-07-22 12:14:33,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2018-07-22 12:14:33,584 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 12:14:33,584 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, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:14:33,584 INFO L414 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 12:14:33,585 INFO L82 PathProgramCache]: Analyzing trace with hash -1422186070, now seen corresponding path program 1 times [2018-07-22 12:14:33,585 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 12:14:33,585 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 12:14:33,587 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:14:33,587 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 12:14:33,587 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:14:33,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 12:14:34,119 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 298 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2018-07-22 12:14:34,120 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 12:14:34,120 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-22 12:14:34,120 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 12:14:34,121 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 12:14:34,121 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 12:14:34,121 INFO L87 Difference]: Start difference. First operand 60398 states and 68667 transitions. Second operand 4 states. [2018-07-22 12:14:45,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 12:14:45,753 INFO L93 Difference]: Finished difference Result 172835 states and 198668 transitions. [2018-07-22 12:14:45,753 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 12:14:45,754 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 333 [2018-07-22 12:14:45,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 12:14:45,867 INFO L225 Difference]: With dead ends: 172835 [2018-07-22 12:14:45,867 INFO L226 Difference]: Without dead ends: 112438 [2018-07-22 12:14:45,907 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 12:14:45,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112438 states. [2018-07-22 12:14:47,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112438 to 110825. [2018-07-22 12:14:47,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110825 states. [2018-07-22 12:14:47,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110825 states to 110825 states and 123242 transitions. [2018-07-22 12:14:47,462 INFO L78 Accepts]: Start accepts. Automaton has 110825 states and 123242 transitions. Word has length 333 [2018-07-22 12:14:47,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 12:14:47,463 INFO L471 AbstractCegarLoop]: Abstraction has 110825 states and 123242 transitions. [2018-07-22 12:14:47,463 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 12:14:47,463 INFO L276 IsEmpty]: Start isEmpty. Operand 110825 states and 123242 transitions. [2018-07-22 12:14:47,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2018-07-22 12:14:47,476 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 12:14:47,477 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 12:14:47,477 INFO L414 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 12:14:47,477 INFO L82 PathProgramCache]: Analyzing trace with hash -1542762132, now seen corresponding path program 1 times [2018-07-22 12:14:47,477 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 12:14:47,477 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 12:14:47,478 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:14:47,478 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 12:14:47,478 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:14:47,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 12:14:47,972 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 251 proven. 65 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2018-07-22 12:14:47,972 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-22 12:14:47,972 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 12:14:47,978 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 12:14:48,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 12:14:48,074 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-22 12:14:48,142 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 238 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2018-07-22 12:14:48,161 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-22 12:14:48,164 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2018-07-22 12:14:48,164 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-22 12:14:48,165 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-22 12:14:48,165 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-07-22 12:14:48,165 INFO L87 Difference]: Start difference. First operand 110825 states and 123242 transitions. Second operand 6 states. [2018-07-22 12:15:02,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 12:15:02,851 INFO L93 Difference]: Finished difference Result 340798 states and 382269 transitions. [2018-07-22 12:15:02,851 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-07-22 12:15:02,851 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 347 [2018-07-22 12:15:02,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 12:15:03,117 INFO L225 Difference]: With dead ends: 340798 [2018-07-22 12:15:03,118 INFO L226 Difference]: Without dead ends: 202324 [2018-07-22 12:15:03,176 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 349 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-07-22 12:15:03,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202324 states. [2018-07-22 12:15:05,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202324 to 192837. [2018-07-22 12:15:05,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192837 states. [2018-07-22 12:15:05,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192837 states to 192837 states and 207860 transitions. [2018-07-22 12:15:05,431 INFO L78 Accepts]: Start accepts. Automaton has 192837 states and 207860 transitions. Word has length 347 [2018-07-22 12:15:05,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 12:15:05,431 INFO L471 AbstractCegarLoop]: Abstraction has 192837 states and 207860 transitions. [2018-07-22 12:15:05,431 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-22 12:15:05,432 INFO L276 IsEmpty]: Start isEmpty. Operand 192837 states and 207860 transitions. [2018-07-22 12:15:05,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 438 [2018-07-22 12:15:05,444 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 12:15:05,444 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 12:15:05,445 INFO L414 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 12:15:05,445 INFO L82 PathProgramCache]: Analyzing trace with hash -1621086016, now seen corresponding path program 1 times [2018-07-22 12:15:05,445 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 12:15:05,445 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 12:15:05,446 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:15:05,446 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 12:15:05,446 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:15:05,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 12:15:05,787 INFO L134 CoverageAnalysis]: Checked inductivity of 712 backedges. 548 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2018-07-22 12:15:05,787 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 12:15:05,788 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-22 12:15:05,788 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-22 12:15:05,788 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-22 12:15:05,788 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-22 12:15:05,788 INFO L87 Difference]: Start difference. First operand 192837 states and 207860 transitions. Second operand 5 states. [2018-07-22 12:15:25,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 12:15:25,137 INFO L93 Difference]: Finished difference Result 522394 states and 565204 transitions. [2018-07-22 12:15:25,138 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-22 12:15:25,138 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 437 [2018-07-22 12:15:25,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 12:15:26,566 INFO L225 Difference]: With dead ends: 522394 [2018-07-22 12:15:26,566 INFO L226 Difference]: Without dead ends: 327188 [2018-07-22 12:15:26,647 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 12:15:26,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327188 states. [2018-07-22 12:15:30,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327188 to 304044. [2018-07-22 12:15:30,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 304044 states. [2018-07-22 12:15:39,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304044 states to 304044 states and 327459 transitions. [2018-07-22 12:15:39,666 INFO L78 Accepts]: Start accepts. Automaton has 304044 states and 327459 transitions. Word has length 437 [2018-07-22 12:15:39,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 12:15:39,666 INFO L471 AbstractCegarLoop]: Abstraction has 304044 states and 327459 transitions. [2018-07-22 12:15:39,666 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-22 12:15:39,666 INFO L276 IsEmpty]: Start isEmpty. Operand 304044 states and 327459 transitions. [2018-07-22 12:15:39,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 588 [2018-07-22 12:15:39,684 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 12:15:39,684 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 12:15:39,685 INFO L414 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 12:15:39,685 INFO L82 PathProgramCache]: Analyzing trace with hash 359944243, now seen corresponding path program 1 times [2018-07-22 12:15:39,685 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 12:15:39,685 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 12:15:39,686 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:15:39,686 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 12:15:39,686 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:15:39,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 12:15:40,166 INFO L134 CoverageAnalysis]: Checked inductivity of 1030 backedges. 831 proven. 6 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2018-07-22 12:15:40,167 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-22 12:15:40,167 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 12:15:40,175 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 12:15:40,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 12:15:40,312 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-22 12:15:41,207 INFO L134 CoverageAnalysis]: Checked inductivity of 1030 backedges. 535 proven. 0 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2018-07-22 12:15:41,228 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-22 12:15:41,228 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2018-07-22 12:15:41,229 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-22 12:15:41,229 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-22 12:15:41,229 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-07-22 12:15:41,229 INFO L87 Difference]: Start difference. First operand 304044 states and 327459 transitions. Second operand 5 states. [2018-07-22 12:15:57,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 12:15:57,355 INFO L93 Difference]: Finished difference Result 630204 states and 678376 transitions. [2018-07-22 12:15:57,355 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-22 12:15:57,355 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 587 [2018-07-22 12:15:57,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 12:15:57,691 INFO L225 Difference]: With dead ends: 630204 [2018-07-22 12:15:57,691 INFO L226 Difference]: Without dead ends: 325367 [2018-07-22 12:15:57,774 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 595 GetRequests, 589 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-07-22 12:15:57,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325367 states. [2018-07-22 12:16:01,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325367 to 308747. [2018-07-22 12:16:01,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 308747 states. [2018-07-22 12:16:01,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308747 states to 308747 states and 323313 transitions. [2018-07-22 12:16:01,574 INFO L78 Accepts]: Start accepts. Automaton has 308747 states and 323313 transitions. Word has length 587 [2018-07-22 12:16:01,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 12:16:01,574 INFO L471 AbstractCegarLoop]: Abstraction has 308747 states and 323313 transitions. [2018-07-22 12:16:01,574 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-22 12:16:01,574 INFO L276 IsEmpty]: Start isEmpty. Operand 308747 states and 323313 transitions. [2018-07-22 12:16:01,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 630 [2018-07-22 12:16:01,587 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 12:16:01,587 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:16:01,587 INFO L414 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 12:16:01,588 INFO L82 PathProgramCache]: Analyzing trace with hash -1988957217, now seen corresponding path program 1 times [2018-07-22 12:16:01,588 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 12:16:01,588 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 12:16:01,589 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:16:01,589 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 12:16:01,589 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:16:01,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 12:16:06,203 INFO L134 CoverageAnalysis]: Checked inductivity of 1089 backedges. 778 proven. 0 refuted. 0 times theorem prover too weak. 311 trivial. 0 not checked. [2018-07-22 12:16:06,203 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 12:16:06,248 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-22 12:16:06,249 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-22 12:16:06,249 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-22 12:16:06,249 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-22 12:16:06,249 INFO L87 Difference]: Start difference. First operand 308747 states and 323313 transitions. Second operand 3 states. [2018-07-22 12:16:12,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 12:16:12,260 INFO L93 Difference]: Finished difference Result 536120 states and 561509 transitions. [2018-07-22 12:16:12,261 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-22 12:16:12,261 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 629 [2018-07-22 12:16:12,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 12:16:12,502 INFO L225 Difference]: With dead ends: 536120 [2018-07-22 12:16:12,502 INFO L226 Difference]: Without dead ends: 226586 [2018-07-22 12:16:12,565 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-22 12:16:12,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226586 states. [2018-07-22 12:16:15,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226586 to 208445. [2018-07-22 12:16:15,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208445 states. [2018-07-22 12:16:15,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208445 states to 208445 states and 216294 transitions. [2018-07-22 12:16:15,264 INFO L78 Accepts]: Start accepts. Automaton has 208445 states and 216294 transitions. Word has length 629 [2018-07-22 12:16:15,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 12:16:15,265 INFO L471 AbstractCegarLoop]: Abstraction has 208445 states and 216294 transitions. [2018-07-22 12:16:15,265 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-22 12:16:15,267 INFO L276 IsEmpty]: Start isEmpty. Operand 208445 states and 216294 transitions. [2018-07-22 12:16:15,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 637 [2018-07-22 12:16:15,284 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 12:16:15,286 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:16:15,286 INFO L414 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 12:16:15,287 INFO L82 PathProgramCache]: Analyzing trace with hash 1128287145, now seen corresponding path program 1 times [2018-07-22 12:16:15,287 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 12:16:15,287 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 12:16:15,288 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:16:15,288 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 12:16:15,288 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:16:15,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 12:16:15,951 WARN L169 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 8 [2018-07-22 12:16:19,511 INFO L134 CoverageAnalysis]: Checked inductivity of 1117 backedges. 806 proven. 0 refuted. 0 times theorem prover too weak. 311 trivial. 0 not checked. [2018-07-22 12:16:19,512 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 12:16:19,512 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-22 12:16:19,512 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 12:16:19,513 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 12:16:19,514 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 12:16:19,514 INFO L87 Difference]: Start difference. First operand 208445 states and 216294 transitions. Second operand 4 states. Received shutdown request... [2018-07-22 12:16:22,109 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 12:16:22,109 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-22 12:16:22,113 WARN L202 ceAbstractionStarter]: Timeout [2018-07-22 12:16:22,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.07 12:16:22 BoogieIcfgContainer [2018-07-22 12:16:22,114 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-22 12:16:22,115 INFO L168 Benchmark]: Toolchain (without parser) took 210534.01 ms. Allocated memory was 309.9 MB in the beginning and 3.0 GB in the end (delta: 2.7 GB). Free memory was 237.7 MB in the beginning and 1.5 GB in the end (delta: -1.2 GB). Peak memory consumption was 1.5 GB. Max. memory is 5.3 GB. [2018-07-22 12:16:22,115 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 309.9 MB. Free memory is still 275.3 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-07-22 12:16:22,116 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3167.18 ms. Allocated memory was 309.9 MB in the beginning and 391.6 MB in the end (delta: 81.8 MB). Free memory was 237.7 MB in the beginning and 200.5 MB in the end (delta: 37.2 MB). Peak memory consumption was 119.0 MB. Max. memory is 5.3 GB. [2018-07-22 12:16:22,117 INFO L168 Benchmark]: Boogie Procedure Inliner took 705.76 ms. Allocated memory was 391.6 MB in the beginning and 393.7 MB in the end (delta: 2.1 MB). Free memory was 200.5 MB in the beginning and 194.2 MB in the end (delta: 6.2 MB). Peak memory consumption was 111.9 MB. Max. memory is 5.3 GB. [2018-07-22 12:16:22,119 INFO L168 Benchmark]: Boogie Preprocessor took 1849.73 ms. Allocated memory was 393.7 MB in the beginning and 723.5 MB in the end (delta: 329.8 MB). Free memory was 194.2 MB in the beginning and 540.6 MB in the end (delta: -346.4 MB). Peak memory consumption was 120.4 MB. Max. memory is 5.3 GB. [2018-07-22 12:16:22,120 INFO L168 Benchmark]: RCFGBuilder took 11539.57 ms. Allocated memory was 723.5 MB in the beginning and 969.9 MB in the end (delta: 246.4 MB). Free memory was 540.6 MB in the beginning and 566.2 MB in the end (delta: -25.6 MB). Peak memory consumption was 304.9 MB. Max. memory is 5.3 GB. [2018-07-22 12:16:22,121 INFO L168 Benchmark]: TraceAbstraction took 193259.10 ms. Allocated memory was 969.9 MB in the beginning and 3.0 GB in the end (delta: 2.0 GB). Free memory was 566.2 MB in the beginning and 1.5 GB in the end (delta: -915.4 MB). Peak memory consumption was 1.1 GB. Max. memory is 5.3 GB. [2018-07-22 12:16:22,127 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 309.9 MB. Free memory is still 275.3 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 3167.18 ms. Allocated memory was 309.9 MB in the beginning and 391.6 MB in the end (delta: 81.8 MB). Free memory was 237.7 MB in the beginning and 200.5 MB in the end (delta: 37.2 MB). Peak memory consumption was 119.0 MB. Max. memory is 5.3 GB. * Boogie Procedure Inliner took 705.76 ms. Allocated memory was 391.6 MB in the beginning and 393.7 MB in the end (delta: 2.1 MB). Free memory was 200.5 MB in the beginning and 194.2 MB in the end (delta: 6.2 MB). Peak memory consumption was 111.9 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 1849.73 ms. Allocated memory was 393.7 MB in the beginning and 723.5 MB in the end (delta: 329.8 MB). Free memory was 194.2 MB in the beginning and 540.6 MB in the end (delta: -346.4 MB). Peak memory consumption was 120.4 MB. Max. memory is 5.3 GB. * RCFGBuilder took 11539.57 ms. Allocated memory was 723.5 MB in the beginning and 969.9 MB in the end (delta: 246.4 MB). Free memory was 540.6 MB in the beginning and 566.2 MB in the end (delta: -25.6 MB). Peak memory consumption was 304.9 MB. Max. memory is 5.3 GB. * TraceAbstraction took 193259.10 ms. Allocated memory was 969.9 MB in the beginning and 3.0 GB in the end (delta: 2.0 GB). Free memory was 566.2 MB in the beginning and 1.5 GB in the end (delta: -915.4 MB). Peak memory consumption was 1.1 GB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 123]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 123). Cancelled while BasicCegarLoop was constructing difference of abstraction (208445states) and interpolant automaton (currently 4 states, 4 states before enhancement), while ReachableStatesComputation was computing reachable states (22129 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1099 locations, 1 error locations. TIMEOUT Result, 193.1s OverallTime, 13 OverallIterations, 6 TraceHistogramMax, 150.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 11625 SDtfs, 31616 SDslu, 4758 SDs, 0 SdLazy, 81544 SolverSat, 15029 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 122.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1314 GetRequests, 1271 SyntacticMatches, 7 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=308747occurred in iteration=11, 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: 27.2s AutomataMinimizationTime, 12 MinimizatonAttempts, 87487 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 5.3s InterpolantComputationTime, 5353 NumberOfCodeBlocks, 5353 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 5337 ConstructedInterpolants, 0 QuantifiedInterpolants, 5005153 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1685 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 16 InterpolantComputations, 13 PerfectInterpolantSequences, 6916/6991 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/Problem13_label00_true-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-22_12-16-22-148.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem13_label00_true-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-22_12-16-22-148.csv Completed graceful shutdown