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/Problem19_label15_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-71425fa [2018-07-22 15:28:13,490 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-22 15:28:13,492 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-22 15:28:13,508 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-22 15:28:13,508 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-22 15:28:13,510 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-22 15:28:13,511 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-22 15:28:13,516 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-22 15:28:13,527 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-22 15:28:13,528 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-22 15:28:13,529 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-22 15:28:13,530 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-22 15:28:13,531 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-22 15:28:13,532 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-22 15:28:13,533 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-22 15:28:13,534 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-22 15:28:13,535 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-22 15:28:13,541 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-22 15:28:13,543 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-22 15:28:13,548 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-22 15:28:13,549 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-22 15:28:13,551 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-22 15:28:13,555 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-22 15:28:13,556 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-22 15:28:13,556 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-22 15:28:13,557 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-22 15:28:13,559 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-22 15:28:13,560 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-22 15:28:13,561 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-22 15:28:13,562 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-22 15:28:13,562 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-22 15:28:13,563 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-07-22 15:28:13,569 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 15:28:13,596 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-22 15:28:13,597 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-22 15:28:13,597 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-22 15:28:13,598 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-07-22 15:28:13,598 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-07-22 15:28:13,598 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-07-22 15:28:13,599 INFO L133 SettingsManager]: * Use SBE=true [2018-07-22 15:28:13,599 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-22 15:28:13,599 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-22 15:28:13,599 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-22 15:28:13,599 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-22 15:28:13,600 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-22 15:28:13,601 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-22 15:28:13,601 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-22 15:28:13,601 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-22 15:28:13,601 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-22 15:28:13,601 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-22 15:28:13,602 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-22 15:28:13,602 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-22 15:28:13,602 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-22 15:28:13,602 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-22 15:28:13,602 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-07-22 15:28:13,603 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-22 15:28:13,603 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-22 15:28:13,603 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-07-22 15:28:13,603 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-22 15:28:13,603 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-22 15:28:13,604 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-22 15:28:13,605 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-22 15:28:13,654 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-22 15:28:13,670 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-22 15:28:13,678 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-22 15:28:13,680 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-22 15:28:13,680 INFO L276 PluginConnector]: CDTParser initialized [2018-07-22 15:28:13,684 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label15_true-unreach-call.c [2018-07-22 15:28:14,063 INFO L220 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/b265b7ad9/bf2fb5efdc644964b663e24e497aa583/FLAG80e50ee67 [2018-07-22 15:28:14,756 INFO L276 CDTParser]: Found 1 translation units. [2018-07-22 15:28:14,757 INFO L158 CDTParser]: Scanning /storage/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label15_true-unreach-call.c [2018-07-22 15:28:14,817 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/b265b7ad9/bf2fb5efdc644964b663e24e497aa583/FLAG80e50ee67 [2018-07-22 15:28:14,833 INFO L332 CDTParser]: Successfully deleted /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/b265b7ad9/bf2fb5efdc644964b663e24e497aa583 [2018-07-22 15:28:14,846 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-22 15:28:14,853 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-22 15:28:14,855 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-22 15:28:14,855 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-22 15:28:14,862 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-22 15:28:14,864 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 03:28:14" (1/1) ... [2018-07-22 15:28:14,867 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20cf718a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:28:14, skipping insertion in model container [2018-07-22 15:28:14,867 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 03:28:14" (1/1) ... [2018-07-22 15:28:15,383 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-22 15:28:17,348 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-22 15:28:17,366 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-22 15:28:18,836 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-22 15:28:19,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:28:19 WrapperNode [2018-07-22 15:28:19,379 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-22 15:28:19,380 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-22 15:28:19,380 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-22 15:28:19,380 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-22 15:28:19,390 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:28:19" (1/1) ... [2018-07-22 15:28:19,548 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:28:19" (1/1) ... [2018-07-22 15:28:21,521 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-22 15:28:21,521 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-22 15:28:21,521 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-22 15:28:21,522 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-22 15:28:21,531 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:28:19" (1/1) ... [2018-07-22 15:28:21,532 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:28:19" (1/1) ... [2018-07-22 15:28:21,636 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:28:19" (1/1) ... [2018-07-22 15:28:21,636 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:28:19" (1/1) ... [2018-07-22 15:28:21,911 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:28:19" (1/1) ... [2018-07-22 15:28:21,991 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:28:19" (1/1) ... [2018-07-22 15:28:22,357 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:28:19" (1/1) ... [2018-07-22 15:28:22,496 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-22 15:28:22,496 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-22 15:28:22,497 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-22 15:28:22,498 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-22 15:28:22,499 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:28:19" (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 15:28:22,560 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-07-22 15:28:22,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-22 15:28:22,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-22 15:28:42,516 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-22 15:28:42,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 03:28:42 BoogieIcfgContainer [2018-07-22 15:28:42,517 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-22 15:28:42,518 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-22 15:28:42,519 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-22 15:28:42,522 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-22 15:28:42,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 03:28:14" (1/3) ... [2018-07-22 15:28:42,523 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f53140f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 03:28:42, skipping insertion in model container [2018-07-22 15:28:42,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:28:19" (2/3) ... [2018-07-22 15:28:42,524 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f53140f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 03:28:42, skipping insertion in model container [2018-07-22 15:28:42,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 03:28:42" (3/3) ... [2018-07-22 15:28:42,526 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label15_true-unreach-call.c [2018-07-22 15:28:42,536 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-22 15:28:42,546 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-22 15:28:42,614 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-22 15:28:42,614 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-22 15:28:42,614 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-22 15:28:42,614 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-22 15:28:42,614 INFO L376 AbstractCegarLoop]: Backedges is TWOTRACK [2018-07-22 15:28:42,614 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-22 15:28:42,615 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-22 15:28:42,615 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-22 15:28:42,615 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-22 15:28:42,676 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states. [2018-07-22 15:28:42,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-07-22 15:28:42,686 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 15:28:42,687 INFO L358 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 15:28:42,687 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 15:28:42,691 INFO L82 PathProgramCache]: Analyzing trace with hash -1281577798, now seen corresponding path program 1 times [2018-07-22 15:28:42,693 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 15:28:42,693 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 15:28:42,747 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 15:28:42,747 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 15:28:42,747 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 15:28:42,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 15:28:43,232 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 15:28:43,235 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 15:28:43,235 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-22 15:28:43,238 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 15:28:43,253 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 15:28:43,254 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 15:28:43,256 INFO L87 Difference]: Start difference. First operand 1749 states. Second operand 4 states. [2018-07-22 15:29:05,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 15:29:05,750 INFO L93 Difference]: Finished difference Result 6409 states and 12226 transitions. [2018-07-22 15:29:05,750 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 15:29:05,751 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2018-07-22 15:29:05,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 15:29:05,806 INFO L225 Difference]: With dead ends: 6409 [2018-07-22 15:29:05,807 INFO L226 Difference]: Without dead ends: 4653 [2018-07-22 15:29:05,818 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 15:29:05,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4653 states. [2018-07-22 15:29:06,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4653 to 4617. [2018-07-22 15:29:06,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4617 states. [2018-07-22 15:29:06,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4617 states to 4617 states and 7623 transitions. [2018-07-22 15:29:06,053 INFO L78 Accepts]: Start accepts. Automaton has 4617 states and 7623 transitions. Word has length 59 [2018-07-22 15:29:06,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 15:29:06,054 INFO L471 AbstractCegarLoop]: Abstraction has 4617 states and 7623 transitions. [2018-07-22 15:29:06,055 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 15:29:06,055 INFO L276 IsEmpty]: Start isEmpty. Operand 4617 states and 7623 transitions. [2018-07-22 15:29:06,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2018-07-22 15:29:06,063 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 15:29:06,063 INFO L358 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 15:29:06,063 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 15:29:06,064 INFO L82 PathProgramCache]: Analyzing trace with hash -626207883, now seen corresponding path program 1 times [2018-07-22 15:29:06,064 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 15:29:06,064 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 15:29:06,065 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 15:29:06,065 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 15:29:06,065 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 15:29:06,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 15:29:06,692 WARN L169 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 19 [2018-07-22 15:29:07,317 WARN L169 SmtUtils]: Spent 600.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 24 [2018-07-22 15:29:07,637 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-22 15:29:07,637 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 15:29:07,638 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-22 15:29:07,640 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-22 15:29:07,640 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-22 15:29:07,640 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-07-22 15:29:07,641 INFO L87 Difference]: Start difference. First operand 4617 states and 7623 transitions. Second operand 6 states. [2018-07-22 15:29:07,829 WARN L169 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-07-22 15:29:35,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 15:29:35,677 INFO L93 Difference]: Finished difference Result 20192 states and 32413 transitions. [2018-07-22 15:29:35,677 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-22 15:29:35,677 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 127 [2018-07-22 15:29:35,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 15:29:35,756 INFO L225 Difference]: With dead ends: 20192 [2018-07-22 15:29:35,756 INFO L226 Difference]: Without dead ends: 15577 [2018-07-22 15:29:35,765 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2018-07-22 15:29:35,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15577 states. [2018-07-22 15:29:36,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15577 to 14204. [2018-07-22 15:29:36,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14204 states. [2018-07-22 15:29:36,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14204 states to 14204 states and 19574 transitions. [2018-07-22 15:29:36,447 INFO L78 Accepts]: Start accepts. Automaton has 14204 states and 19574 transitions. Word has length 127 [2018-07-22 15:29:36,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 15:29:36,448 INFO L471 AbstractCegarLoop]: Abstraction has 14204 states and 19574 transitions. [2018-07-22 15:29:36,448 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-22 15:29:36,448 INFO L276 IsEmpty]: Start isEmpty. Operand 14204 states and 19574 transitions. [2018-07-22 15:29:36,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2018-07-22 15:29:36,465 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 15:29:36,466 INFO L358 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-07-22 15:29:36,466 INFO L414 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 15:29:36,466 INFO L82 PathProgramCache]: Analyzing trace with hash -1285441987, now seen corresponding path program 1 times [2018-07-22 15:29:36,467 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 15:29:36,467 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 15:29:36,468 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 15:29:36,468 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 15:29:36,468 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 15:29:36,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 15:29:37,393 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 133 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2018-07-22 15:29:37,394 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 15:29:37,394 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-22 15:29:37,395 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-22 15:29:37,395 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-22 15:29:37,395 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-07-22 15:29:37,395 INFO L87 Difference]: Start difference. First operand 14204 states and 19574 transitions. Second operand 7 states. [2018-07-22 15:30:02,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 15:30:02,337 INFO L93 Difference]: Finished difference Result 40712 states and 55789 transitions. [2018-07-22 15:30:02,337 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-22 15:30:02,338 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 345 [2018-07-22 15:30:02,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 15:30:02,422 INFO L225 Difference]: With dead ends: 40712 [2018-07-22 15:30:02,422 INFO L226 Difference]: Without dead ends: 26510 [2018-07-22 15:30:02,443 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2018-07-22 15:30:02,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26510 states. [2018-07-22 15:30:03,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26510 to 23774. [2018-07-22 15:30:03,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23774 states. [2018-07-22 15:30:03,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23774 states to 23774 states and 29481 transitions. [2018-07-22 15:30:03,280 INFO L78 Accepts]: Start accepts. Automaton has 23774 states and 29481 transitions. Word has length 345 [2018-07-22 15:30:03,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 15:30:03,281 INFO L471 AbstractCegarLoop]: Abstraction has 23774 states and 29481 transitions. [2018-07-22 15:30:03,281 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-22 15:30:03,282 INFO L276 IsEmpty]: Start isEmpty. Operand 23774 states and 29481 transitions. [2018-07-22 15:30:03,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2018-07-22 15:30:03,288 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 15:30:03,289 INFO L358 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-07-22 15:30:03,289 INFO L414 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 15:30:03,289 INFO L82 PathProgramCache]: Analyzing trace with hash 2042151011, now seen corresponding path program 1 times [2018-07-22 15:30:03,289 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 15:30:03,289 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 15:30:03,293 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 15:30:03,293 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 15:30:03,293 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 15:30:03,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 15:30:03,732 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 190 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-22 15:30:03,732 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 15:30:03,732 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-22 15:30:03,733 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 15:30:03,733 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 15:30:03,733 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 15:30:03,733 INFO L87 Difference]: Start difference. First operand 23774 states and 29481 transitions. Second operand 4 states. [2018-07-22 15:30:17,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 15:30:17,260 INFO L93 Difference]: Finished difference Result 54398 states and 69215 transitions. [2018-07-22 15:30:17,260 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 15:30:17,260 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 373 [2018-07-22 15:30:17,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 15:30:17,309 INFO L225 Difference]: With dead ends: 54398 [2018-07-22 15:30:17,310 INFO L226 Difference]: Without dead ends: 26526 [2018-07-22 15:30:17,336 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 15:30:17,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26526 states. [2018-07-22 15:30:17,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26526 to 25150. [2018-07-22 15:30:17,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25150 states. [2018-07-22 15:30:17,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25150 states to 25150 states and 31283 transitions. [2018-07-22 15:30:17,751 INFO L78 Accepts]: Start accepts. Automaton has 25150 states and 31283 transitions. Word has length 373 [2018-07-22 15:30:17,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 15:30:17,754 INFO L471 AbstractCegarLoop]: Abstraction has 25150 states and 31283 transitions. [2018-07-22 15:30:17,754 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 15:30:17,754 INFO L276 IsEmpty]: Start isEmpty. Operand 25150 states and 31283 transitions. [2018-07-22 15:30:17,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2018-07-22 15:30:17,763 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 15:30:17,764 INFO L358 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 15:30:17,764 INFO L414 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 15:30:17,764 INFO L82 PathProgramCache]: Analyzing trace with hash -881494582, now seen corresponding path program 1 times [2018-07-22 15:30:17,764 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 15:30:17,764 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 15:30:17,765 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 15:30:17,765 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 15:30:17,766 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 15:30:17,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 15:30:18,377 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 248 proven. 65 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2018-07-22 15:30:18,380 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-22 15:30:18,380 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 15:30:18,397 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 15:30:18,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 15:30:18,577 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-22 15:30:19,026 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 313 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2018-07-22 15:30:19,060 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-22 15:30:19,061 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2018-07-22 15:30:19,062 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-22 15:30:19,062 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-22 15:30:19,062 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-07-22 15:30:19,063 INFO L87 Difference]: Start difference. First operand 25150 states and 31283 transitions. Second operand 5 states. [2018-07-22 15:30:45,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 15:30:45,620 INFO L93 Difference]: Finished difference Result 127207 states and 162796 transitions. [2018-07-22 15:30:45,621 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-22 15:30:45,621 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 433 [2018-07-22 15:30:45,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 15:30:45,785 INFO L225 Difference]: With dead ends: 127207 [2018-07-22 15:30:45,785 INFO L226 Difference]: Without dead ends: 92493 [2018-07-22 15:30:45,823 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 439 GetRequests, 434 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-07-22 15:30:45,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92493 states. [2018-07-22 15:30:47,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92493 to 92389. [2018-07-22 15:30:47,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92389 states. [2018-07-22 15:30:47,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92389 states to 92389 states and 105194 transitions. [2018-07-22 15:30:47,274 INFO L78 Accepts]: Start accepts. Automaton has 92389 states and 105194 transitions. Word has length 433 [2018-07-22 15:30:47,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 15:30:47,275 INFO L471 AbstractCegarLoop]: Abstraction has 92389 states and 105194 transitions. [2018-07-22 15:30:47,275 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-22 15:30:47,276 INFO L276 IsEmpty]: Start isEmpty. Operand 92389 states and 105194 transitions. [2018-07-22 15:30:47,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 626 [2018-07-22 15:30:47,295 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 15:30:47,295 INFO L358 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 15:30:47,295 INFO L414 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 15:30:47,296 INFO L82 PathProgramCache]: Analyzing trace with hash 1786287050, now seen corresponding path program 1 times [2018-07-22 15:30:47,296 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 15:30:47,296 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 15:30:47,297 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 15:30:47,297 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 15:30:47,297 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 15:30:47,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 15:30:47,998 WARN L169 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 5 [2018-07-22 15:30:48,516 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 113 proven. 4 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-07-22 15:30:48,516 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-22 15:30:48,517 INFO L219 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2018-07-22 15:30:48,530 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-22 15:30:48,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 15:30:48,728 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-22 15:30:49,182 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 190 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-22 15:30:49,202 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-22 15:30:49,202 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2018-07-22 15:30:49,203 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 15:30:49,203 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 15:30:49,203 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 15:30:49,204 INFO L87 Difference]: Start difference. First operand 92389 states and 105194 transitions. Second operand 4 states. [2018-07-22 15:31:05,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 15:31:05,017 INFO L93 Difference]: Finished difference Result 329915 states and 377836 transitions. [2018-07-22 15:31:05,018 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 15:31:05,018 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 625 [2018-07-22 15:31:05,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 15:31:05,311 INFO L225 Difference]: With dead ends: 329915 [2018-07-22 15:31:05,312 INFO L226 Difference]: Without dead ends: 238894 [2018-07-22 15:31:05,385 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 627 GetRequests, 625 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 15:31:05,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238894 states. [2018-07-22 15:31:07,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238894 to 155218. [2018-07-22 15:31:07,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155218 states. [2018-07-22 15:31:07,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155218 states to 155218 states and 175569 transitions. [2018-07-22 15:31:07,541 INFO L78 Accepts]: Start accepts. Automaton has 155218 states and 175569 transitions. Word has length 625 [2018-07-22 15:31:07,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 15:31:07,542 INFO L471 AbstractCegarLoop]: Abstraction has 155218 states and 175569 transitions. [2018-07-22 15:31:07,542 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 15:31:07,542 INFO L276 IsEmpty]: Start isEmpty. Operand 155218 states and 175569 transitions. [2018-07-22 15:31:07,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1167 [2018-07-22 15:31:07,619 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 15:31:07,620 INFO L358 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 15:31:07,620 INFO L414 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 15:31:07,620 INFO L82 PathProgramCache]: Analyzing trace with hash -1623896442, now seen corresponding path program 1 times [2018-07-22 15:31:07,620 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 15:31:07,621 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 15:31:07,622 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 15:31:07,622 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 15:31:07,622 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 15:31:07,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 15:31:13,551 INFO L134 CoverageAnalysis]: Checked inductivity of 1021 backedges. 731 proven. 2 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2018-07-22 15:31:13,552 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-22 15:31:13,552 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 15:31:13,558 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 15:31:13,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 15:31:13,828 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-22 15:31:15,095 INFO L134 CoverageAnalysis]: Checked inductivity of 1021 backedges. 731 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2018-07-22 15:31:15,115 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-22 15:31:15,116 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2018-07-22 15:31:15,117 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-22 15:31:15,118 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-22 15:31:15,118 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-22 15:31:15,118 INFO L87 Difference]: Start difference. First operand 155218 states and 175569 transitions. Second operand 5 states. [2018-07-22 15:31:29,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 15:31:29,831 INFO L93 Difference]: Finished difference Result 343212 states and 389795 transitions. [2018-07-22 15:31:29,831 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 15:31:29,831 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1166 [2018-07-22 15:31:29,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 15:31:29,995 INFO L225 Difference]: With dead ends: 343212 [2018-07-22 15:31:29,995 INFO L226 Difference]: Without dead ends: 189362 [2018-07-22 15:31:30,048 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 1168 GetRequests, 1165 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 15:31:30,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189362 states. [2018-07-22 15:31:31,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189362 to 189353. [2018-07-22 15:31:31,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189353 states. [2018-07-22 15:31:32,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189353 states to 189353 states and 206814 transitions. [2018-07-22 15:31:32,437 INFO L78 Accepts]: Start accepts. Automaton has 189353 states and 206814 transitions. Word has length 1166 [2018-07-22 15:31:32,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 15:31:32,438 INFO L471 AbstractCegarLoop]: Abstraction has 189353 states and 206814 transitions. [2018-07-22 15:31:32,438 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-22 15:31:32,439 INFO L276 IsEmpty]: Start isEmpty. Operand 189353 states and 206814 transitions. [2018-07-22 15:31:32,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1218 [2018-07-22 15:31:32,490 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 15:31:32,491 INFO L358 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 15:31:32,491 INFO L414 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 15:31:32,492 INFO L82 PathProgramCache]: Analyzing trace with hash 1572134932, now seen corresponding path program 1 times [2018-07-22 15:31:32,492 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 15:31:32,492 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 15:31:32,493 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 15:31:32,493 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 15:31:32,493 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 15:31:32,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 15:31:33,712 WARN L169 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 15 [2018-07-22 15:31:34,106 WARN L169 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 21 [2018-07-22 15:31:39,430 INFO L134 CoverageAnalysis]: Checked inductivity of 1181 backedges. 671 proven. 4 refuted. 0 times theorem prover too weak. 506 trivial. 0 not checked. [2018-07-22 15:31:39,430 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-22 15:31:39,469 INFO L219 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-22 15:31:39,475 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 15:31:39,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 15:31:39,731 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-22 15:31:40,374 INFO L134 CoverageAnalysis]: Checked inductivity of 1181 backedges. 675 proven. 0 refuted. 0 times theorem prover too weak. 506 trivial. 0 not checked. [2018-07-22 15:31:40,394 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-22 15:31:40,395 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2018-07-22 15:31:40,396 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-22 15:31:40,397 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-22 15:31:40,397 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-07-22 15:31:40,397 INFO L87 Difference]: Start difference. First operand 189353 states and 206814 transitions. Second operand 5 states. Received shutdown request... [2018-07-22 15:31:53,441 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-22 15:31:53,441 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-22 15:31:53,445 WARN L202 ceAbstractionStarter]: Timeout [2018-07-22 15:31:53,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.07 03:31:53 BoogieIcfgContainer [2018-07-22 15:31:53,446 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-22 15:31:53,447 INFO L168 Benchmark]: Toolchain (without parser) took 218599.79 ms. Allocated memory was 305.1 MB in the beginning and 2.7 GB in the end (delta: 2.4 GB). Free memory was 225.8 MB in the beginning and 1.3 GB in the end (delta: -1.0 GB). Peak memory consumption was 1.4 GB. Max. memory is 5.3 GB. [2018-07-22 15:31:53,447 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 305.1 MB. Free memory is still 270.6 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-07-22 15:31:53,447 INFO L168 Benchmark]: CACSL2BoogieTranslator took 4524.51 ms. Allocated memory was 305.1 MB in the beginning and 407.9 MB in the end (delta: 102.8 MB). Free memory was 224.8 MB in the beginning and 157.0 MB in the end (delta: 67.8 MB). Peak memory consumption was 222.9 MB. Max. memory is 5.3 GB. [2018-07-22 15:31:53,448 INFO L168 Benchmark]: Boogie Procedure Inliner took 2141.48 ms. Allocated memory was 407.9 MB in the beginning and 705.7 MB in the end (delta: 297.8 MB). Free memory was 157.0 MB in the beginning and 432.2 MB in the end (delta: -275.3 MB). Peak memory consumption was 143.6 MB. Max. memory is 5.3 GB. [2018-07-22 15:31:53,448 INFO L168 Benchmark]: Boogie Preprocessor took 974.64 ms. Allocated memory was 705.7 MB in the beginning and 903.9 MB in the end (delta: 198.2 MB). Free memory was 432.2 MB in the beginning and 618.2 MB in the end (delta: -186.0 MB). Peak memory consumption was 188.5 MB. Max. memory is 5.3 GB. [2018-07-22 15:31:53,449 INFO L168 Benchmark]: RCFGBuilder took 20021.24 ms. Allocated memory was 903.9 MB in the beginning and 1.2 GB in the end (delta: 317.2 MB). Free memory was 618.2 MB in the beginning and 911.1 MB in the end (delta: -292.9 MB). Peak memory consumption was 465.2 MB. Max. memory is 5.3 GB. [2018-07-22 15:31:53,450 INFO L168 Benchmark]: TraceAbstraction took 190927.44 ms. Allocated memory was 1.2 GB in the beginning and 2.7 GB in the end (delta: 1.5 GB). Free memory was 911.1 MB in the beginning and 1.3 GB in the end (delta: -354.6 MB). Peak memory consumption was 1.1 GB. Max. memory is 5.3 GB. [2018-07-22 15:31:53,456 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 305.1 MB. Free memory is still 270.6 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 4524.51 ms. Allocated memory was 305.1 MB in the beginning and 407.9 MB in the end (delta: 102.8 MB). Free memory was 224.8 MB in the beginning and 157.0 MB in the end (delta: 67.8 MB). Peak memory consumption was 222.9 MB. Max. memory is 5.3 GB. * Boogie Procedure Inliner took 2141.48 ms. Allocated memory was 407.9 MB in the beginning and 705.7 MB in the end (delta: 297.8 MB). Free memory was 157.0 MB in the beginning and 432.2 MB in the end (delta: -275.3 MB). Peak memory consumption was 143.6 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 974.64 ms. Allocated memory was 705.7 MB in the beginning and 903.9 MB in the end (delta: 198.2 MB). Free memory was 432.2 MB in the beginning and 618.2 MB in the end (delta: -186.0 MB). Peak memory consumption was 188.5 MB. Max. memory is 5.3 GB. * RCFGBuilder took 20021.24 ms. Allocated memory was 903.9 MB in the beginning and 1.2 GB in the end (delta: 317.2 MB). Free memory was 618.2 MB in the beginning and 911.1 MB in the end (delta: -292.9 MB). Peak memory consumption was 465.2 MB. Max. memory is 5.3 GB. * TraceAbstraction took 190927.44 ms. Allocated memory was 1.2 GB in the beginning and 2.7 GB in the end (delta: 1.5 GB). Free memory was 911.1 MB in the beginning and 1.3 GB in the end (delta: -354.6 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: 190]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 190). Cancelled while BasicCegarLoop was constructing difference of abstraction (189353states) and interpolant automaton (currently 6 states, 5 states before enhancement), while ReachableStatesComputation was computing reachable states (176660 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1749 locations, 1 error locations. TIMEOUT Result, 190.8s OverallTime, 8 OverallIterations, 5 TraceHistogramMax, 160.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 10591 SDtfs, 45051 SDslu, 4353 SDs, 0 SdLazy, 100806 SolverSat, 23218 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 134.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3488 GetRequests, 3446 SyntacticMatches, 10 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 3.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=189353occurred in iteration=7, 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: 8.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 89310 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 8.9s InterpolantComputationTime, 7786 NumberOfCodeBlocks, 7786 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 7774 ConstructedInterpolants, 0 QuantifiedInterpolants, 19142028 SizeOfPredicates, 6 NumberOfNonLiveVariables, 3940 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 12 InterpolantComputations, 8 PerfectInterpolantSequences, 5885/5960 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/Problem19_label15_true-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-22_15-31-53-472.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem19_label15_true-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-22_15-31-53-472.csv Completed graceful shutdown