java -Xmx8000000000 -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 csv -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem18_label14_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 03:24:59,498 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 03:24:59,500 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 03:24:59,517 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 03:24:59,517 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 03:24:59,518 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 03:24:59,520 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 03:24:59,522 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 03:24:59,524 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 03:24:59,526 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 03:24:59,528 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 03:24:59,529 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 03:24:59,531 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 03:24:59,532 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 03:24:59,533 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 03:24:59,534 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 03:24:59,537 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 03:24:59,539 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 03:24:59,547 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 03:24:59,549 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 03:24:59,552 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 03:24:59,553 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 03:24:59,557 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 03:24:59,557 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 03:24:59,557 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 03:24:59,559 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 03:24:59,561 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 03:24:59,562 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 03:24:59,563 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 03:24:59,563 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 03:24:59,564 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 03:24:59,566 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-07-24 03:24:59,568 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-07-24 03:24:59,596 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 03:24:59,596 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 03:24:59,597 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 03:24:59,597 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-07-24 03:24:59,601 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-07-24 03:24:59,601 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-07-24 03:24:59,602 INFO L133 SettingsManager]: * Use SBE=true [2018-07-24 03:24:59,602 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 03:24:59,602 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 03:24:59,602 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 03:24:59,603 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 03:24:59,604 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 03:24:59,604 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 03:24:59,604 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 03:24:59,604 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 03:24:59,604 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 03:24:59,604 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 03:24:59,605 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 03:24:59,605 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 03:24:59,605 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 03:24:59,605 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 03:24:59,605 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 03:24:59,606 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 03:24:59,606 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-07-24 03:24:59,606 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 03:24:59,606 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 03:24:59,606 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 03:24:59,606 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 03:24:59,656 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 03:24:59,670 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 03:24:59,677 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 03:24:59,680 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 03:24:59,681 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 03:24:59,681 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label14_true-unreach-call.c [2018-07-24 03:25:00,040 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa077b8df/b8ee383412e740609f30fb72c62737de/FLAG709e5c4d6 [2018-07-24 03:25:00,443 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 03:25:00,444 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label14_true-unreach-call.c [2018-07-24 03:25:00,474 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa077b8df/b8ee383412e740609f30fb72c62737de/FLAG709e5c4d6 [2018-07-24 03:25:00,495 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa077b8df/b8ee383412e740609f30fb72c62737de [2018-07-24 03:25:00,507 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 03:25:00,511 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 03:25:00,512 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 03:25:00,512 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 03:25:00,520 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 03:25:00,521 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 03:25:00" (1/1) ... [2018-07-24 03:25:00,524 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29fefffb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:25:00, skipping insertion in model container [2018-07-24 03:25:00,525 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 03:25:00" (1/1) ... [2018-07-24 03:25:00,849 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 03:25:01,633 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 03:25:01,650 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 03:25:02,202 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 03:25:02,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:25:02 WrapperNode [2018-07-24 03:25:02,364 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 03:25:02,365 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 03:25:02,365 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 03:25:02,365 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 03:25:02,376 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:25:02" (1/1) ... [2018-07-24 03:25:02,446 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:25:02" (1/1) ... [2018-07-24 03:25:02,648 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 03:25:02,648 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 03:25:02,649 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 03:25:02,649 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 03:25:03,228 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:25:02" (1/1) ... [2018-07-24 03:25:03,228 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:25:02" (1/1) ... [2018-07-24 03:25:03,252 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:25:02" (1/1) ... [2018-07-24 03:25:03,252 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:25:02" (1/1) ... [2018-07-24 03:25:03,344 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:25:02" (1/1) ... [2018-07-24 03:25:03,377 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:25:02" (1/1) ... [2018-07-24 03:25:03,404 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:25:02" (1/1) ... [2018-07-24 03:25:03,433 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 03:25:03,434 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 03:25:03,434 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 03:25:03,434 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 03:25:03,435 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:25:02" (1/1) ... No working directory specified, using /storage/repos/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 [2018-07-24 03:25:03,500 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-07-24 03:25:03,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 03:25:03,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 03:25:11,800 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 03:25:11,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 03:25:11 BoogieIcfgContainer [2018-07-24 03:25:11,801 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 03:25:11,802 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 03:25:11,802 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 03:25:11,805 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 03:25:11,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 03:25:00" (1/3) ... [2018-07-24 03:25:11,806 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3598df0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 03:25:11, skipping insertion in model container [2018-07-24 03:25:11,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:25:02" (2/3) ... [2018-07-24 03:25:11,807 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3598df0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 03:25:11, skipping insertion in model container [2018-07-24 03:25:11,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 03:25:11" (3/3) ... [2018-07-24 03:25:11,809 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label14_true-unreach-call.c [2018-07-24 03:25:11,819 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 03:25:11,828 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 03:25:11,901 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 03:25:11,902 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 03:25:11,902 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 03:25:11,903 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 03:25:11,903 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 03:25:11,903 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 03:25:11,903 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 03:25:11,903 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 03:25:11,903 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 03:25:11,953 INFO L276 IsEmpty]: Start isEmpty. Operand 758 states. [2018-07-24 03:25:11,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-07-24 03:25:11,962 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 03:25:11,963 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 03:25:11,963 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 03:25:11,968 INFO L82 PathProgramCache]: Analyzing trace with hash 1316472986, now seen corresponding path program 1 times [2018-07-24 03:25:11,970 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 03:25:11,971 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 03:25:12,024 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 03:25:12,024 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 03:25:12,024 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 03:25:12,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 03:25:12,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 03:25:12,431 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 03:25:12,431 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 03:25:12,437 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 03:25:12,453 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 03:25:12,454 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 03:25:12,457 INFO L87 Difference]: Start difference. First operand 758 states. Second operand 4 states. [2018-07-24 03:25:24,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 03:25:24,021 INFO L93 Difference]: Finished difference Result 2902 states and 5650 transitions. [2018-07-24 03:25:24,022 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 03:25:24,024 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2018-07-24 03:25:24,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 03:25:24,067 INFO L225 Difference]: With dead ends: 2902 [2018-07-24 03:25:24,067 INFO L226 Difference]: Without dead ends: 2137 [2018-07-24 03:25:24,080 INFO L573 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 [2018-07-24 03:25:24,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2137 states. [2018-07-24 03:25:24,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2137 to 2137. [2018-07-24 03:25:24,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2137 states. [2018-07-24 03:25:24,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2137 states to 2137 states and 3733 transitions. [2018-07-24 03:25:24,230 INFO L78 Accepts]: Start accepts. Automaton has 2137 states and 3733 transitions. Word has length 51 [2018-07-24 03:25:24,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 03:25:24,231 INFO L471 AbstractCegarLoop]: Abstraction has 2137 states and 3733 transitions. [2018-07-24 03:25:24,231 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 03:25:24,231 INFO L276 IsEmpty]: Start isEmpty. Operand 2137 states and 3733 transitions. [2018-07-24 03:25:24,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2018-07-24 03:25:24,237 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 03:25:24,238 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 03:25:24,238 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 03:25:24,239 INFO L82 PathProgramCache]: Analyzing trace with hash 543888713, now seen corresponding path program 1 times [2018-07-24 03:25:24,239 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 03:25:24,239 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 03:25:24,240 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 03:25:24,240 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 03:25:24,241 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 03:25:24,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 03:25:24,521 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 03:25:24,521 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 03:25:24,521 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 03:25:24,523 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 03:25:24,524 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 03:25:24,524 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 03:25:24,524 INFO L87 Difference]: Start difference. First operand 2137 states and 3733 transitions. Second operand 4 states. [2018-07-24 03:25:32,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 03:25:32,340 INFO L93 Difference]: Finished difference Result 6345 states and 11134 transitions. [2018-07-24 03:25:32,342 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 03:25:32,342 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 117 [2018-07-24 03:25:32,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 03:25:32,365 INFO L225 Difference]: With dead ends: 6345 [2018-07-24 03:25:32,366 INFO L226 Difference]: Without dead ends: 4210 [2018-07-24 03:25:32,371 INFO L573 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 [2018-07-24 03:25:32,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4210 states. [2018-07-24 03:25:32,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4210 to 4210. [2018-07-24 03:25:32,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4210 states. [2018-07-24 03:25:32,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4210 states to 4210 states and 6185 transitions. [2018-07-24 03:25:32,461 INFO L78 Accepts]: Start accepts. Automaton has 4210 states and 6185 transitions. Word has length 117 [2018-07-24 03:25:32,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 03:25:32,461 INFO L471 AbstractCegarLoop]: Abstraction has 4210 states and 6185 transitions. [2018-07-24 03:25:32,461 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 03:25:32,462 INFO L276 IsEmpty]: Start isEmpty. Operand 4210 states and 6185 transitions. [2018-07-24 03:25:32,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2018-07-24 03:25:32,468 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 03:25:32,468 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 03:25:32,469 INFO L414 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 03:25:32,469 INFO L82 PathProgramCache]: Analyzing trace with hash -60509066, now seen corresponding path program 1 times [2018-07-24 03:25:32,469 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 03:25:32,469 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 03:25:32,470 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 03:25:32,473 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 03:25:32,474 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 03:25:32,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 03:25:32,825 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 03:25:32,825 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 03:25:32,825 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 03:25:32,826 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 03:25:32,826 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 03:25:32,828 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 03:25:32,828 INFO L87 Difference]: Start difference. First operand 4210 states and 6185 transitions. Second operand 4 states. [2018-07-24 03:25:40,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 03:25:40,557 INFO L93 Difference]: Finished difference Result 16726 states and 24628 transitions. [2018-07-24 03:25:40,558 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 03:25:40,558 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 120 [2018-07-24 03:25:40,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 03:25:40,612 INFO L225 Difference]: With dead ends: 16726 [2018-07-24 03:25:40,612 INFO L226 Difference]: Without dead ends: 12518 [2018-07-24 03:25:40,621 INFO L573 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 [2018-07-24 03:25:40,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12518 states. [2018-07-24 03:25:40,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12518 to 8356. [2018-07-24 03:25:40,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8356 states. [2018-07-24 03:25:40,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8356 states to 8356 states and 10927 transitions. [2018-07-24 03:25:40,812 INFO L78 Accepts]: Start accepts. Automaton has 8356 states and 10927 transitions. Word has length 120 [2018-07-24 03:25:40,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 03:25:40,813 INFO L471 AbstractCegarLoop]: Abstraction has 8356 states and 10927 transitions. [2018-07-24 03:25:40,813 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 03:25:40,813 INFO L276 IsEmpty]: Start isEmpty. Operand 8356 states and 10927 transitions. [2018-07-24 03:25:40,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2018-07-24 03:25:40,821 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 03:25:40,821 INFO L353 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, 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] [2018-07-24 03:25:40,821 INFO L414 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 03:25:40,822 INFO L82 PathProgramCache]: Analyzing trace with hash -160732990, now seen corresponding path program 1 times [2018-07-24 03:25:40,822 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 03:25:40,822 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 03:25:40,823 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 03:25:40,823 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 03:25:40,824 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 03:25:40,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 03:25:41,496 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2018-07-24 03:25:41,496 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 03:25:41,496 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 03:25:41,497 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 03:25:41,497 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 03:25:41,498 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-07-24 03:25:41,498 INFO L87 Difference]: Start difference. First operand 8356 states and 10927 transitions. Second operand 5 states. [2018-07-24 03:25:50,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 03:25:50,431 INFO L93 Difference]: Finished difference Result 23620 states and 30279 transitions. [2018-07-24 03:25:50,432 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-24 03:25:50,432 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 236 [2018-07-24 03:25:50,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 03:25:50,483 INFO L225 Difference]: With dead ends: 23620 [2018-07-24 03:25:50,483 INFO L226 Difference]: Without dead ends: 15266 [2018-07-24 03:25:50,490 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-07-24 03:25:50,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15266 states. [2018-07-24 03:25:50,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15266 to 13884. [2018-07-24 03:25:50,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13884 states. [2018-07-24 03:25:50,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13884 states to 13884 states and 16774 transitions. [2018-07-24 03:25:50,721 INFO L78 Accepts]: Start accepts. Automaton has 13884 states and 16774 transitions. Word has length 236 [2018-07-24 03:25:50,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 03:25:50,722 INFO L471 AbstractCegarLoop]: Abstraction has 13884 states and 16774 transitions. [2018-07-24 03:25:50,722 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 03:25:50,722 INFO L276 IsEmpty]: Start isEmpty. Operand 13884 states and 16774 transitions. [2018-07-24 03:25:50,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 420 [2018-07-24 03:25:50,732 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 03:25:50,733 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 03:25:50,733 INFO L414 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 03:25:50,733 INFO L82 PathProgramCache]: Analyzing trace with hash -1019522935, now seen corresponding path program 1 times [2018-07-24 03:25:50,733 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 03:25:50,734 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 03:25:50,735 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 03:25:50,735 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 03:25:50,735 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 03:25:50,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 03:25:51,211 WARN L169 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 7 [2018-07-24 03:25:51,441 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 328 proven. 4 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2018-07-24 03:25:51,442 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 03:25:51,442 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/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 [2018-07-24 03:25:51,453 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 03:25:51,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 03:25:51,601 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 03:25:52,000 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 332 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2018-07-24 03:25:52,021 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-24 03:25:52,021 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2018-07-24 03:25:52,023 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 03:25:52,023 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 03:25:52,023 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-07-24 03:25:52,023 INFO L87 Difference]: Start difference. First operand 13884 states and 16774 transitions. Second operand 6 states. [2018-07-24 03:26:02,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 03:26:02,297 INFO L93 Difference]: Finished difference Result 32619 states and 38659 transitions. [2018-07-24 03:26:02,302 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 03:26:02,303 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 419 [2018-07-24 03:26:02,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 03:26:02,362 INFO L225 Difference]: With dead ends: 32619 [2018-07-24 03:26:02,362 INFO L226 Difference]: Without dead ends: 18044 [2018-07-24 03:26:02,379 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 424 GetRequests, 417 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2018-07-24 03:26:02,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18044 states. [2018-07-24 03:26:02,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18044 to 14574. [2018-07-24 03:26:02,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14574 states. [2018-07-24 03:26:02,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14574 states to 14574 states and 16240 transitions. [2018-07-24 03:26:02,647 INFO L78 Accepts]: Start accepts. Automaton has 14574 states and 16240 transitions. Word has length 419 [2018-07-24 03:26:02,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 03:26:02,648 INFO L471 AbstractCegarLoop]: Abstraction has 14574 states and 16240 transitions. [2018-07-24 03:26:02,648 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 03:26:02,648 INFO L276 IsEmpty]: Start isEmpty. Operand 14574 states and 16240 transitions. [2018-07-24 03:26:02,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1035 [2018-07-24 03:26:02,691 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 03:26:02,692 INFO L353 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 03:26:02,692 INFO L414 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 03:26:02,693 INFO L82 PathProgramCache]: Analyzing trace with hash 841803403, now seen corresponding path program 1 times [2018-07-24 03:26:02,693 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 03:26:02,693 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 03:26:02,694 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 03:26:02,695 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 03:26:02,695 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 03:26:02,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 03:26:03,635 WARN L169 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 8 [2018-07-24 03:26:04,485 INFO L134 CoverageAnalysis]: Checked inductivity of 899 backedges. 552 proven. 0 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2018-07-24 03:26:04,486 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 03:26:04,486 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 03:26:04,487 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 03:26:04,488 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 03:26:04,488 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 03:26:04,488 INFO L87 Difference]: Start difference. First operand 14574 states and 16240 transitions. Second operand 4 states. [2018-07-24 03:26:11,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 03:26:11,944 INFO L93 Difference]: Finished difference Result 34674 states and 38707 transitions. [2018-07-24 03:26:11,945 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 03:26:11,945 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1034 [2018-07-24 03:26:11,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 03:26:11,983 INFO L225 Difference]: With dead ends: 34674 [2018-07-24 03:26:11,983 INFO L226 Difference]: Without dead ends: 20793 [2018-07-24 03:26:11,999 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 03:26:12,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20793 states. [2018-07-24 03:26:12,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20793 to 20102. [2018-07-24 03:26:12,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20102 states. [2018-07-24 03:26:12,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20102 states to 20102 states and 21883 transitions. [2018-07-24 03:26:12,244 INFO L78 Accepts]: Start accepts. Automaton has 20102 states and 21883 transitions. Word has length 1034 [2018-07-24 03:26:12,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 03:26:12,246 INFO L471 AbstractCegarLoop]: Abstraction has 20102 states and 21883 transitions. [2018-07-24 03:26:12,246 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 03:26:12,246 INFO L276 IsEmpty]: Start isEmpty. Operand 20102 states and 21883 transitions. [2018-07-24 03:26:12,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1049 [2018-07-24 03:26:12,293 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 03:26:12,294 INFO L353 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 03:26:12,294 INFO L414 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 03:26:12,295 INFO L82 PathProgramCache]: Analyzing trace with hash -755470450, now seen corresponding path program 1 times [2018-07-24 03:26:12,295 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 03:26:12,295 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 03:26:12,296 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 03:26:12,296 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 03:26:12,296 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 03:26:12,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 03:26:13,550 INFO L134 CoverageAnalysis]: Checked inductivity of 941 backedges. 469 proven. 0 refuted. 0 times theorem prover too weak. 472 trivial. 0 not checked. [2018-07-24 03:26:13,551 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 03:26:13,551 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 03:26:13,552 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 03:26:13,552 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 03:26:13,553 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 03:26:13,553 INFO L87 Difference]: Start difference. First operand 20102 states and 21883 transitions. Second operand 3 states. [2018-07-24 03:26:16,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 03:26:16,900 INFO L93 Difference]: Finished difference Result 41584 states and 45370 transitions. [2018-07-24 03:26:16,901 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 03:26:16,901 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1048 [2018-07-24 03:26:16,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 03:26:16,937 INFO L225 Difference]: With dead ends: 41584 [2018-07-24 03:26:16,937 INFO L226 Difference]: Without dead ends: 22175 [2018-07-24 03:26:16,955 INFO L573 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 [2018-07-24 03:26:16,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22175 states. [2018-07-24 03:26:17,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22175 to 22175. [2018-07-24 03:26:17,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22175 states. [2018-07-24 03:26:17,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22175 states to 22175 states and 23986 transitions. [2018-07-24 03:26:17,173 INFO L78 Accepts]: Start accepts. Automaton has 22175 states and 23986 transitions. Word has length 1048 [2018-07-24 03:26:17,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 03:26:17,175 INFO L471 AbstractCegarLoop]: Abstraction has 22175 states and 23986 transitions. [2018-07-24 03:26:17,175 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 03:26:17,175 INFO L276 IsEmpty]: Start isEmpty. Operand 22175 states and 23986 transitions. [2018-07-24 03:26:17,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1089 [2018-07-24 03:26:17,191 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 03:26:17,192 INFO L353 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 03:26:17,193 INFO L414 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 03:26:17,193 INFO L82 PathProgramCache]: Analyzing trace with hash 511587644, now seen corresponding path program 1 times [2018-07-24 03:26:17,193 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 03:26:17,193 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 03:26:17,194 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 03:26:17,194 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 03:26:17,195 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 03:26:17,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 03:26:20,391 INFO L134 CoverageAnalysis]: Checked inductivity of 1182 backedges. 438 proven. 676 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2018-07-24 03:26:20,391 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 03:26:20,391 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/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 [2018-07-24 03:26:20,399 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 03:26:20,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 03:26:20,718 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 03:26:21,505 INFO L134 CoverageAnalysis]: Checked inductivity of 1182 backedges. 507 proven. 0 refuted. 0 times theorem prover too weak. 675 trivial. 0 not checked. [2018-07-24 03:26:21,526 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-24 03:26:21,526 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2018-07-24 03:26:21,528 INFO L450 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-07-24 03:26:21,530 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-07-24 03:26:21,530 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2018-07-24 03:26:21,530 INFO L87 Difference]: Start difference. First operand 22175 states and 23986 transitions. Second operand 10 states. [2018-07-24 03:26:38,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 03:26:38,500 INFO L93 Difference]: Finished difference Result 63911 states and 70411 transitions. [2018-07-24 03:26:38,507 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-07-24 03:26:38,507 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 1088 [2018-07-24 03:26:38,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 03:26:38,572 INFO L225 Difference]: With dead ends: 63911 [2018-07-24 03:26:38,573 INFO L226 Difference]: Without dead ends: 42429 [2018-07-24 03:26:38,588 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1123 GetRequests, 1100 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=189, Invalid=411, Unknown=0, NotChecked=0, Total=600 [2018-07-24 03:26:38,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42429 states. [2018-07-24 03:26:38,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42429 to 29085. [2018-07-24 03:26:38,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29085 states. [2018-07-24 03:26:38,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29085 states to 29085 states and 31804 transitions. [2018-07-24 03:26:38,945 INFO L78 Accepts]: Start accepts. Automaton has 29085 states and 31804 transitions. Word has length 1088 [2018-07-24 03:26:38,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 03:26:38,946 INFO L471 AbstractCegarLoop]: Abstraction has 29085 states and 31804 transitions. [2018-07-24 03:26:38,947 INFO L472 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-07-24 03:26:38,947 INFO L276 IsEmpty]: Start isEmpty. Operand 29085 states and 31804 transitions. [2018-07-24 03:26:38,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1127 [2018-07-24 03:26:38,963 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 03:26:38,964 INFO L353 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 03:26:38,964 INFO L414 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 03:26:38,965 INFO L82 PathProgramCache]: Analyzing trace with hash 145227930, now seen corresponding path program 1 times [2018-07-24 03:26:38,965 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 03:26:38,965 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 03:26:38,966 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 03:26:38,966 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 03:26:38,966 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 03:26:39,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 03:26:40,014 INFO L134 CoverageAnalysis]: Checked inductivity of 1279 backedges. 511 proven. 0 refuted. 0 times theorem prover too weak. 768 trivial. 0 not checked. [2018-07-24 03:26:40,015 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 03:26:40,015 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 03:26:40,016 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 03:26:40,016 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 03:26:40,016 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 03:26:40,017 INFO L87 Difference]: Start difference. First operand 29085 states and 31804 transitions. Second operand 4 states. [2018-07-24 03:26:46,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 03:26:46,436 INFO L93 Difference]: Finished difference Result 78207 states and 87792 transitions. [2018-07-24 03:26:46,437 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 03:26:46,437 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1126 [2018-07-24 03:26:46,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 03:26:46,514 INFO L225 Difference]: With dead ends: 78207 [2018-07-24 03:26:46,514 INFO L226 Difference]: Without dead ends: 44267 [2018-07-24 03:26:46,547 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 03:26:46,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44267 states. [2018-07-24 03:26:46,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44267 to 43576. [2018-07-24 03:26:46,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43576 states. [2018-07-24 03:26:47,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43576 states to 43576 states and 47630 transitions. [2018-07-24 03:26:47,013 INFO L78 Accepts]: Start accepts. Automaton has 43576 states and 47630 transitions. Word has length 1126 [2018-07-24 03:26:47,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 03:26:47,015 INFO L471 AbstractCegarLoop]: Abstraction has 43576 states and 47630 transitions. [2018-07-24 03:26:47,015 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 03:26:47,015 INFO L276 IsEmpty]: Start isEmpty. Operand 43576 states and 47630 transitions. [2018-07-24 03:26:47,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1143 [2018-07-24 03:26:47,032 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 03:26:47,033 INFO L353 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 03:26:47,033 INFO L414 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 03:26:47,033 INFO L82 PathProgramCache]: Analyzing trace with hash -276868487, now seen corresponding path program 1 times [2018-07-24 03:26:47,034 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 03:26:47,034 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 03:26:47,034 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 03:26:47,035 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 03:26:47,035 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 03:26:47,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 03:26:48,464 INFO L134 CoverageAnalysis]: Checked inductivity of 1129 backedges. 657 proven. 0 refuted. 0 times theorem prover too weak. 472 trivial. 0 not checked. [2018-07-24 03:26:48,464 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 03:26:48,464 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 03:26:48,465 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 03:26:48,465 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 03:26:48,465 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 03:26:48,466 INFO L87 Difference]: Start difference. First operand 43576 states and 47630 transitions. Second operand 4 states. [2018-07-24 03:26:54,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 03:26:54,195 INFO L93 Difference]: Finished difference Result 111345 states and 122712 transitions. [2018-07-24 03:26:54,195 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 03:26:54,195 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1142 [2018-07-24 03:26:54,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 03:26:54,279 INFO L225 Difference]: With dead ends: 111345 [2018-07-24 03:26:54,279 INFO L226 Difference]: Without dead ends: 68462 [2018-07-24 03:26:54,317 INFO L573 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 [2018-07-24 03:26:54,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68462 states. [2018-07-24 03:26:54,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68462 to 68462. [2018-07-24 03:26:54,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68462 states. [2018-07-24 03:26:54,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68462 states to 68462 states and 74406 transitions. [2018-07-24 03:26:54,916 INFO L78 Accepts]: Start accepts. Automaton has 68462 states and 74406 transitions. Word has length 1142 [2018-07-24 03:26:54,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 03:26:54,917 INFO L471 AbstractCegarLoop]: Abstraction has 68462 states and 74406 transitions. [2018-07-24 03:26:54,917 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 03:26:54,917 INFO L276 IsEmpty]: Start isEmpty. Operand 68462 states and 74406 transitions. [2018-07-24 03:26:54,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1180 [2018-07-24 03:26:54,932 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 03:26:54,933 INFO L353 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 03:26:54,933 INFO L414 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 03:26:54,933 INFO L82 PathProgramCache]: Analyzing trace with hash -128694643, now seen corresponding path program 1 times [2018-07-24 03:26:54,934 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 03:26:54,934 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 03:26:54,934 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 03:26:54,935 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 03:26:54,935 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 03:26:55,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 03:26:58,889 INFO L134 CoverageAnalysis]: Checked inductivity of 1409 backedges. 895 proven. 269 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2018-07-24 03:26:58,890 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 03:26:58,890 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/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 [2018-07-24 03:26:58,898 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 03:26:59,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 03:26:59,216 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 03:27:00,675 INFO L134 CoverageAnalysis]: Checked inductivity of 1409 backedges. 244 proven. 0 refuted. 0 times theorem prover too weak. 1165 trivial. 0 not checked. [2018-07-24 03:27:00,696 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-24 03:27:00,696 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [11] total 12 [2018-07-24 03:27:00,698 INFO L450 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-07-24 03:27:00,698 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-07-24 03:27:00,698 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2018-07-24 03:27:00,698 INFO L87 Difference]: Start difference. First operand 68462 states and 74406 transitions. Second operand 13 states. [2018-07-24 03:27:17,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 03:27:17,768 INFO L93 Difference]: Finished difference Result 154997 states and 167882 transitions. [2018-07-24 03:27:17,768 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-07-24 03:27:17,768 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 1179 [2018-07-24 03:27:17,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 03:27:17,886 INFO L225 Difference]: With dead ends: 154997 [2018-07-24 03:27:17,887 INFO L226 Difference]: Without dead ends: 79601 [2018-07-24 03:27:17,939 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1202 GetRequests, 1178 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=190, Invalid=410, Unknown=0, NotChecked=0, Total=600 [2018-07-24 03:27:18,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79601 states. [2018-07-24 03:27:18,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79601 to 75355. [2018-07-24 03:27:18,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75355 states. [2018-07-24 03:27:18,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75355 states to 75355 states and 80447 transitions. [2018-07-24 03:27:18,875 INFO L78 Accepts]: Start accepts. Automaton has 75355 states and 80447 transitions. Word has length 1179 [2018-07-24 03:27:18,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 03:27:18,876 INFO L471 AbstractCegarLoop]: Abstraction has 75355 states and 80447 transitions. [2018-07-24 03:27:18,876 INFO L472 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-07-24 03:27:18,876 INFO L276 IsEmpty]: Start isEmpty. Operand 75355 states and 80447 transitions. [2018-07-24 03:27:18,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1196 [2018-07-24 03:27:18,891 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 03:27:18,892 INFO L353 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 03:27:18,892 INFO L414 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 03:27:18,893 INFO L82 PathProgramCache]: Analyzing trace with hash 1937957301, now seen corresponding path program 1 times [2018-07-24 03:27:18,893 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 03:27:18,893 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 03:27:18,894 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 03:27:18,894 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 03:27:18,894 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 03:27:18,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 03:27:19,868 INFO L134 CoverageAnalysis]: Checked inductivity of 1457 backedges. 830 proven. 0 refuted. 0 times theorem prover too weak. 627 trivial. 0 not checked. [2018-07-24 03:27:19,869 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 03:27:19,869 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 03:27:19,870 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 03:27:19,870 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 03:27:19,870 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 03:27:19,870 INFO L87 Difference]: Start difference. First operand 75355 states and 80447 transitions. Second operand 4 states. [2018-07-24 03:27:25,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 03:27:25,733 INFO L93 Difference]: Finished difference Result 185957 states and 199236 transitions. [2018-07-24 03:27:25,733 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 03:27:25,733 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1195 [2018-07-24 03:27:25,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 03:27:25,850 INFO L225 Difference]: With dead ends: 185957 [2018-07-24 03:27:25,851 INFO L226 Difference]: Without dead ends: 111295 [2018-07-24 03:27:25,892 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 03:27:25,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111295 states. [2018-07-24 03:27:26,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111295 to 97467. [2018-07-24 03:27:26,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97467 states. [2018-07-24 03:27:26,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97467 states to 97467 states and 103171 transitions. [2018-07-24 03:27:26,776 INFO L78 Accepts]: Start accepts. Automaton has 97467 states and 103171 transitions. Word has length 1195 [2018-07-24 03:27:26,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 03:27:26,776 INFO L471 AbstractCegarLoop]: Abstraction has 97467 states and 103171 transitions. [2018-07-24 03:27:26,776 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 03:27:26,777 INFO L276 IsEmpty]: Start isEmpty. Operand 97467 states and 103171 transitions. [2018-07-24 03:27:26,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1210 [2018-07-24 03:27:26,790 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 03:27:26,791 INFO L353 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 03:27:26,791 INFO L414 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 03:27:26,792 INFO L82 PathProgramCache]: Analyzing trace with hash -65336071, now seen corresponding path program 1 times [2018-07-24 03:27:26,792 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 03:27:26,792 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 03:27:26,793 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 03:27:26,793 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 03:27:26,793 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 03:27:26,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 03:27:27,831 WARN L169 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 11 [2018-07-24 03:27:29,034 INFO L134 CoverageAnalysis]: Checked inductivity of 1520 backedges. 619 proven. 0 refuted. 0 times theorem prover too weak. 901 trivial. 0 not checked. [2018-07-24 03:27:29,034 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 03:27:29,034 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 03:27:29,035 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 03:27:29,035 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 03:27:29,035 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 03:27:29,036 INFO L87 Difference]: Start difference. First operand 97467 states and 103171 transitions. Second operand 4 states. [2018-07-24 03:27:35,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 03:27:35,203 INFO L93 Difference]: Finished difference Result 212207 states and 224713 transitions. [2018-07-24 03:27:35,203 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 03:27:35,203 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1209 [2018-07-24 03:27:35,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 03:27:35,347 INFO L225 Difference]: With dead ends: 212207 [2018-07-24 03:27:35,348 INFO L226 Difference]: Without dead ends: 112661 [2018-07-24 03:27:35,411 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 03:27:35,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112661 states. [2018-07-24 03:27:36,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112661 to 108515. [2018-07-24 03:27:36,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108515 states. [2018-07-24 03:27:36,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108515 states to 108515 states and 114176 transitions. [2018-07-24 03:27:36,405 INFO L78 Accepts]: Start accepts. Automaton has 108515 states and 114176 transitions. Word has length 1209 [2018-07-24 03:27:36,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 03:27:36,406 INFO L471 AbstractCegarLoop]: Abstraction has 108515 states and 114176 transitions. [2018-07-24 03:27:36,406 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 03:27:36,406 INFO L276 IsEmpty]: Start isEmpty. Operand 108515 states and 114176 transitions. [2018-07-24 03:27:36,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1246 [2018-07-24 03:27:36,419 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 03:27:36,420 INFO L353 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 03:27:36,420 INFO L414 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 03:27:36,421 INFO L82 PathProgramCache]: Analyzing trace with hash 485557004, now seen corresponding path program 1 times [2018-07-24 03:27:36,421 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 03:27:36,421 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 03:27:36,422 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 03:27:36,422 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 03:27:36,422 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 03:27:36,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 03:27:37,607 WARN L169 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 10 [2018-07-24 03:27:37,977 WARN L169 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 13 [2018-07-24 03:27:38,724 WARN L169 SmtUtils]: Spent 638.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 4 [2018-07-24 03:27:41,449 INFO L134 CoverageAnalysis]: Checked inductivity of 2102 backedges. 833 proven. 1055 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2018-07-24 03:27:41,449 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 03:27:41,449 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/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 [2018-07-24 03:27:41,459 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 03:27:41,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 03:27:41,790 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 03:27:42,888 INFO L134 CoverageAnalysis]: Checked inductivity of 2102 backedges. 1075 proven. 0 refuted. 0 times theorem prover too weak. 1027 trivial. 0 not checked. [2018-07-24 03:27:42,910 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-24 03:27:42,911 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2018-07-24 03:27:42,912 INFO L450 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-07-24 03:27:42,913 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-07-24 03:27:42,913 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-07-24 03:27:42,913 INFO L87 Difference]: Start difference. First operand 108515 states and 114176 transitions. Second operand 11 states. [2018-07-24 03:28:00,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 03:28:00,306 INFO L93 Difference]: Finished difference Result 255746 states and 269007 transitions. [2018-07-24 03:28:00,306 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-07-24 03:28:00,306 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 1245 [2018-07-24 03:28:00,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 03:28:00,464 INFO L225 Difference]: With dead ends: 255746 [2018-07-24 03:28:00,464 INFO L226 Difference]: Without dead ends: 147924 [2018-07-24 03:28:00,528 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1282 GetRequests, 1258 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=169, Invalid=481, Unknown=0, NotChecked=0, Total=650 [2018-07-24 03:28:00,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147924 states. [2018-07-24 03:28:02,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147924 to 107824. [2018-07-24 03:28:02,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107824 states. [2018-07-24 03:28:02,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107824 states to 107824 states and 111657 transitions. [2018-07-24 03:28:02,235 INFO L78 Accepts]: Start accepts. Automaton has 107824 states and 111657 transitions. Word has length 1245 [2018-07-24 03:28:02,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 03:28:02,235 INFO L471 AbstractCegarLoop]: Abstraction has 107824 states and 111657 transitions. [2018-07-24 03:28:02,235 INFO L472 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-07-24 03:28:02,236 INFO L276 IsEmpty]: Start isEmpty. Operand 107824 states and 111657 transitions. [2018-07-24 03:28:02,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1259 [2018-07-24 03:28:02,252 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 03:28:02,253 INFO L353 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 03:28:02,253 INFO L414 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 03:28:02,254 INFO L82 PathProgramCache]: Analyzing trace with hash 553529017, now seen corresponding path program 1 times [2018-07-24 03:28:02,254 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 03:28:02,254 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 03:28:02,255 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 03:28:02,255 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 03:28:02,255 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 03:28:02,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 03:28:04,477 INFO L134 CoverageAnalysis]: Checked inductivity of 2143 backedges. 1113 proven. 0 refuted. 0 times theorem prover too weak. 1030 trivial. 0 not checked. [2018-07-24 03:28:04,477 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 03:28:04,477 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 03:28:04,478 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 03:28:04,479 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 03:28:04,479 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 03:28:04,479 INFO L87 Difference]: Start difference. First operand 107824 states and 111657 transitions. Second operand 4 states. [2018-07-24 03:28:09,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 03:28:09,702 INFO L93 Difference]: Finished difference Result 231535 states and 239883 transitions. [2018-07-24 03:28:09,703 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 03:28:09,703 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1258 [2018-07-24 03:28:09,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 03:28:09,823 INFO L225 Difference]: With dead ends: 231535 [2018-07-24 03:28:09,823 INFO L226 Difference]: Without dead ends: 115410 [2018-07-24 03:28:09,878 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 03:28:09,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115410 states. [2018-07-24 03:28:11,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115410 to 115410. [2018-07-24 03:28:11,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115410 states. [2018-07-24 03:28:11,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115410 states to 115410 states and 118521 transitions. [2018-07-24 03:28:11,338 INFO L78 Accepts]: Start accepts. Automaton has 115410 states and 118521 transitions. Word has length 1258 [2018-07-24 03:28:11,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 03:28:11,339 INFO L471 AbstractCegarLoop]: Abstraction has 115410 states and 118521 transitions. [2018-07-24 03:28:11,339 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 03:28:11,339 INFO L276 IsEmpty]: Start isEmpty. Operand 115410 states and 118521 transitions. [2018-07-24 03:28:11,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1304 [2018-07-24 03:28:11,354 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 03:28:11,355 INFO L353 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 03:28:11,355 INFO L414 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 03:28:11,355 INFO L82 PathProgramCache]: Analyzing trace with hash -874116444, now seen corresponding path program 1 times [2018-07-24 03:28:11,355 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 03:28:11,355 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 03:28:11,356 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 03:28:11,356 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 03:28:11,356 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 03:28:11,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 03:28:12,642 WARN L169 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 3 [2018-07-24 03:28:13,788 INFO L134 CoverageAnalysis]: Checked inductivity of 1768 backedges. 1033 proven. 157 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2018-07-24 03:28:13,789 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 03:28:13,789 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 03:28:13,797 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 03:28:14,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 03:28:14,146 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 03:28:15,455 INFO L134 CoverageAnalysis]: Checked inductivity of 1768 backedges. 1033 proven. 157 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2018-07-24 03:28:15,479 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-24 03:28:15,480 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 7 [2018-07-24 03:28:15,481 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-24 03:28:15,481 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-24 03:28:15,481 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-07-24 03:28:15,482 INFO L87 Difference]: Start difference. First operand 115410 states and 118521 transitions. Second operand 7 states. [2018-07-24 03:28:32,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 03:28:32,469 INFO L93 Difference]: Finished difference Result 255696 states and 262883 transitions. [2018-07-24 03:28:32,469 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-07-24 03:28:32,469 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1303 [2018-07-24 03:28:32,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 03:28:32,621 INFO L225 Difference]: With dead ends: 255696 [2018-07-24 03:28:32,621 INFO L226 Difference]: Without dead ends: 138905 [2018-07-24 03:28:32,682 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1314 GetRequests, 1305 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2018-07-24 03:28:32,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138905 states. [2018-07-24 03:28:33,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138905 to 122319. [2018-07-24 03:28:33,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122319 states. [2018-07-24 03:28:33,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122319 states to 122319 states and 125195 transitions. [2018-07-24 03:28:33,893 INFO L78 Accepts]: Start accepts. Automaton has 122319 states and 125195 transitions. Word has length 1303 [2018-07-24 03:28:33,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 03:28:33,894 INFO L471 AbstractCegarLoop]: Abstraction has 122319 states and 125195 transitions. [2018-07-24 03:28:33,894 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-24 03:28:33,894 INFO L276 IsEmpty]: Start isEmpty. Operand 122319 states and 125195 transitions. [2018-07-24 03:28:34,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1382 [2018-07-24 03:28:34,232 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 03:28:34,232 INFO L353 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 03:28:34,233 INFO L414 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 03:28:34,234 INFO L82 PathProgramCache]: Analyzing trace with hash 462601465, now seen corresponding path program 1 times [2018-07-24 03:28:34,234 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 03:28:34,234 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 03:28:34,235 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 03:28:34,235 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 03:28:34,235 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 03:28:34,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 03:28:35,890 INFO L134 CoverageAnalysis]: Checked inductivity of 2136 backedges. 667 proven. 0 refuted. 0 times theorem prover too weak. 1469 trivial. 0 not checked. [2018-07-24 03:28:35,891 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 03:28:35,891 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 03:28:35,891 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 03:28:35,892 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 03:28:35,892 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 03:28:35,892 INFO L87 Difference]: Start difference. First operand 122319 states and 125195 transitions. Second operand 3 states. [2018-07-24 03:28:41,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 03:28:41,508 INFO L93 Difference]: Finished difference Result 243945 states and 249696 transitions. [2018-07-24 03:28:41,509 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 03:28:41,509 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1381 [2018-07-24 03:28:41,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 03:28:41,613 INFO L225 Difference]: With dead ends: 243945 [2018-07-24 03:28:41,613 INFO L226 Difference]: Without dead ends: 122319 [2018-07-24 03:28:41,667 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 03:28:41,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122319 states. [2018-07-24 03:28:42,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122319 to 120937. [2018-07-24 03:28:42,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120937 states. [2018-07-24 03:28:42,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120937 states to 120937 states and 123451 transitions. [2018-07-24 03:28:42,735 INFO L78 Accepts]: Start accepts. Automaton has 120937 states and 123451 transitions. Word has length 1381 [2018-07-24 03:28:42,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 03:28:42,736 INFO L471 AbstractCegarLoop]: Abstraction has 120937 states and 123451 transitions. [2018-07-24 03:28:42,736 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 03:28:42,736 INFO L276 IsEmpty]: Start isEmpty. Operand 120937 states and 123451 transitions. [2018-07-24 03:28:42,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1422 [2018-07-24 03:28:42,756 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 03:28:42,756 INFO L353 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 03:28:42,757 INFO L414 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 03:28:42,757 INFO L82 PathProgramCache]: Analyzing trace with hash 92821725, now seen corresponding path program 1 times [2018-07-24 03:28:42,757 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 03:28:42,757 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 03:28:42,758 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 03:28:42,758 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 03:28:42,758 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 03:28:42,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2018-07-24 03:28:47,227 INFO L134 CoverageAnalysis]: Checked inductivity of 2308 backedges. 1283 proven. 2 refuted. 0 times theorem prover too weak. 1023 trivial. 0 not checked. [2018-07-24 03:28:47,227 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 03:28:47,227 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 03:28:47,240 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 03:28:47,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 03:28:47,629 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 03:28:47,677 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-07-24 03:28:47,879 WARN L512 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 03:28:47,879 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-24 03:28:47,885 WARN L202 ceAbstractionStarter]: Timeout [2018-07-24 03:28:47,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 03:28:47 BoogieIcfgContainer [2018-07-24 03:28:47,886 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 03:28:47,887 INFO L168 Benchmark]: Toolchain (without parser) took 227379.24 ms. Allocated memory was 1.5 GB in the beginning and 4.8 GB in the end (delta: 3.2 GB). Free memory was 1.4 GB in the beginning and 3.7 GB in the end (delta: -2.2 GB). Peak memory consumption was 989.9 MB. Max. memory is 7.1 GB. [2018-07-24 03:28:47,888 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-24 03:28:47,891 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1852.13 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 180.0 MB). Peak memory consumption was 180.0 MB. Max. memory is 7.1 GB. [2018-07-24 03:28:47,892 INFO L168 Benchmark]: Boogie Procedure Inliner took 283.45 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-07-24 03:28:47,893 INFO L168 Benchmark]: Boogie Preprocessor took 784.83 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 912.3 MB). Free memory was 1.2 GB in the beginning and 2.4 GB in the end (delta: -1.1 GB). Peak memory consumption was 108.1 MB. Max. memory is 7.1 GB. [2018-07-24 03:28:47,894 INFO L168 Benchmark]: RCFGBuilder took 8367.16 ms. Allocated memory is still 2.5 GB. Free memory was 2.4 GB in the beginning and 1.8 GB in the end (delta: 574.8 MB). Peak memory consumption was 574.8 MB. Max. memory is 7.1 GB. [2018-07-24 03:28:47,899 INFO L168 Benchmark]: TraceAbstraction took 216084.14 ms. Allocated memory was 2.5 GB in the beginning and 4.8 GB in the end (delta: 2.3 GB). Free memory was 1.8 GB in the beginning and 3.7 GB in the end (delta: -1.9 GB). Peak memory consumption was 426.6 MB. Max. memory is 7.1 GB. [2018-07-24 03:28:47,909 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1852.13 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 180.0 MB). Peak memory consumption was 180.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 283.45 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 784.83 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 912.3 MB). Free memory was 1.2 GB in the beginning and 2.4 GB in the end (delta: -1.1 GB). Peak memory consumption was 108.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 8367.16 ms. Allocated memory is still 2.5 GB. Free memory was 2.4 GB in the beginning and 1.8 GB in the end (delta: 574.8 MB). Peak memory consumption was 574.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 216084.14 ms. Allocated memory was 2.5 GB in the beginning and 4.8 GB in the end (delta: 2.3 GB). Free memory was 1.8 GB in the beginning and 3.7 GB in the end (delta: -1.9 GB). Peak memory consumption was 426.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 159]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 159). Cancelled while BasicCegarLoop was analyzing trace of length 1422 with TraceHistMax 7, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 6 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 758 locations, 1 error locations. TIMEOUT Result, 215.9s OverallTime, 18 OverallIterations, 8 TraceHistogramMax, 162.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 8711 SDtfs, 55664 SDslu, 2059 SDs, 0 SdLazy, 100785 SolverSat, 13600 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 128.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5401 GetRequests, 5280 SyntacticMatches, 14 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 387 ImplicationChecksByTransitivity, 7.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=122319occurred in iteration=16, 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: 11.0s AutomataMinimizationTime, 17 MinimizatonAttempts, 104028 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.6s SsaConstructionTime, 2.2s SatisfiabilityAnalysisTime, 17.5s InterpolantComputationTime, 20385 NumberOfCodeBlocks, 20385 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 20363 ConstructedInterpolants, 0 QuantifiedInterpolants, 64206122 SizeOfPredicates, 5 NumberOfNonLiveVariables, 6101 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 22 InterpolantComputations, 16 PerfectInterpolantSequences, 23156/25474 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/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem18_label14_true-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_03-28-47-929.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem18_label14_true-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-24_03-28-47-929.csv Completed graceful shutdown