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/Problem11_label50_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 02:36:51,741 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 02:36:51,743 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 02:36:51,760 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 02:36:51,760 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 02:36:51,761 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 02:36:51,762 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 02:36:51,764 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 02:36:51,766 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 02:36:51,767 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 02:36:51,768 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 02:36:51,768 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 02:36:51,769 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 02:36:51,772 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 02:36:51,773 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 02:36:51,777 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 02:36:51,778 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 02:36:51,779 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 02:36:51,781 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 02:36:51,782 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 02:36:51,783 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 02:36:51,784 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 02:36:51,786 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 02:36:51,787 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 02:36:51,787 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 02:36:51,788 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 02:36:51,788 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 02:36:51,789 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 02:36:51,790 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 02:36:51,791 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 02:36:51,791 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 02:36:51,792 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-07-24 02:36:51,794 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 02:36:51,821 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 02:36:51,821 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 02:36:51,822 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 02:36:51,826 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-07-24 02:36:51,827 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-07-24 02:36:51,827 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-07-24 02:36:51,828 INFO L133 SettingsManager]: * Use SBE=true [2018-07-24 02:36:51,828 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 02:36:51,828 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 02:36:51,828 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 02:36:51,829 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 02:36:51,830 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 02:36:51,830 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 02:36:51,830 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 02:36:51,830 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 02:36:51,831 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 02:36:51,831 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 02:36:51,831 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 02:36:51,831 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 02:36:51,831 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 02:36:51,832 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 02:36:51,832 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 02:36:51,832 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 02:36:51,832 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-07-24 02:36:51,832 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 02:36:51,833 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 02:36:51,833 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 02:36:51,833 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 02:36:51,875 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 02:36:51,891 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 02:36:51,895 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 02:36:51,897 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 02:36:51,897 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 02:36:51,898 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label50_true-unreach-call.c [2018-07-24 02:36:52,261 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc0162966/73492d56d565419d9af31556e8ef1193/FLAGe0144a47a [2018-07-24 02:36:52,630 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 02:36:52,631 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label50_true-unreach-call.c [2018-07-24 02:36:52,651 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc0162966/73492d56d565419d9af31556e8ef1193/FLAGe0144a47a [2018-07-24 02:36:52,670 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc0162966/73492d56d565419d9af31556e8ef1193 [2018-07-24 02:36:52,683 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 02:36:52,685 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 02:36:52,687 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 02:36:52,687 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 02:36:52,695 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 02:36:52,696 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 02:36:52" (1/1) ... [2018-07-24 02:36:52,699 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74c5d332 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:36:52, skipping insertion in model container [2018-07-24 02:36:52,700 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 02:36:52" (1/1) ... [2018-07-24 02:36:52,933 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 02:36:53,350 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 02:36:53,373 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 02:36:53,667 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 02:36:53,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:36:53 WrapperNode [2018-07-24 02:36:53,756 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 02:36:53,757 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 02:36:53,757 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 02:36:53,757 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 02:36:53,768 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:36:53" (1/1) ... [2018-07-24 02:36:53,821 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:36:53" (1/1) ... [2018-07-24 02:36:53,930 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 02:36:53,930 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 02:36:53,931 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 02:36:53,931 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 02:36:53,942 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:36:53" (1/1) ... [2018-07-24 02:36:53,942 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:36:53" (1/1) ... [2018-07-24 02:36:53,953 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:36:53" (1/1) ... [2018-07-24 02:36:53,953 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:36:53" (1/1) ... [2018-07-24 02:36:54,255 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:36:53" (1/1) ... [2018-07-24 02:36:54,284 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:36:53" (1/1) ... [2018-07-24 02:36:54,314 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:36:53" (1/1) ... [2018-07-24 02:36:54,333 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 02:36:54,334 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 02:36:54,334 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 02:36:54,334 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 02:36:54,337 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:36:53" (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 02:36:54,408 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-07-24 02:36:54,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 02:36:54,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 02:36:58,699 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 02:36:58,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 02:36:58 BoogieIcfgContainer [2018-07-24 02:36:58,700 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 02:36:58,701 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 02:36:58,701 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 02:36:58,713 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 02:36:58,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 02:36:52" (1/3) ... [2018-07-24 02:36:58,715 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2349f44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 02:36:58, skipping insertion in model container [2018-07-24 02:36:58,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:36:53" (2/3) ... [2018-07-24 02:36:58,715 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2349f44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 02:36:58, skipping insertion in model container [2018-07-24 02:36:58,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 02:36:58" (3/3) ... [2018-07-24 02:36:58,718 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label50_true-unreach-call.c [2018-07-24 02:36:58,727 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 02:36:58,735 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 02:36:58,788 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 02:36:58,789 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 02:36:58,790 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 02:36:58,790 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 02:36:58,790 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 02:36:58,790 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 02:36:58,792 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 02:36:58,793 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 02:36:58,793 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 02:36:58,841 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states. [2018-07-24 02:36:58,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-07-24 02:36:58,852 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:36:58,856 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] [2018-07-24 02:36:58,857 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:36:58,862 INFO L82 PathProgramCache]: Analyzing trace with hash 680225122, now seen corresponding path program 1 times [2018-07-24 02:36:58,865 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:36:58,865 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:36:58,921 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:36:58,921 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:36:58,921 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:36:59,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:36:59,344 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 02:36:59,348 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 02:36:59,348 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 02:36:59,353 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 02:36:59,370 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 02:36:59,371 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 02:36:59,374 INFO L87 Difference]: Start difference. First operand 284 states. Second operand 4 states. [2018-07-24 02:37:02,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:37:02,731 INFO L93 Difference]: Finished difference Result 955 states and 1722 transitions. [2018-07-24 02:37:02,732 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 02:37:02,734 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 37 [2018-07-24 02:37:02,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:37:02,759 INFO L225 Difference]: With dead ends: 955 [2018-07-24 02:37:02,760 INFO L226 Difference]: Without dead ends: 664 [2018-07-24 02:37:02,765 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 02:37:02,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2018-07-24 02:37:02,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 472. [2018-07-24 02:37:02,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 472 states. [2018-07-24 02:37:02,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 716 transitions. [2018-07-24 02:37:02,841 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 716 transitions. Word has length 37 [2018-07-24 02:37:02,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:37:02,842 INFO L471 AbstractCegarLoop]: Abstraction has 472 states and 716 transitions. [2018-07-24 02:37:02,842 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 02:37:02,842 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 716 transitions. [2018-07-24 02:37:02,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2018-07-24 02:37:02,848 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:37:02,848 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:37:02,848 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:37:02,849 INFO L82 PathProgramCache]: Analyzing trace with hash -1815459254, now seen corresponding path program 1 times [2018-07-24 02:37:02,849 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:37:02,849 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:37:02,853 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:37:02,853 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:37:02,853 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:37:02,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:37:03,138 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 02:37:03,138 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 02:37:03,138 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 02:37:03,140 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 02:37:03,141 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 02:37:03,141 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 02:37:03,142 INFO L87 Difference]: Start difference. First operand 472 states and 716 transitions. Second operand 4 states. [2018-07-24 02:37:06,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:37:06,937 INFO L93 Difference]: Finished difference Result 1700 states and 2661 transitions. [2018-07-24 02:37:06,938 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 02:37:06,938 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 106 [2018-07-24 02:37:06,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:37:06,946 INFO L225 Difference]: With dead ends: 1700 [2018-07-24 02:37:06,946 INFO L226 Difference]: Without dead ends: 1230 [2018-07-24 02:37:06,950 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 02:37:06,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1230 states. [2018-07-24 02:37:06,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1230 to 1216. [2018-07-24 02:37:06,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1216 states. [2018-07-24 02:37:07,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1216 states to 1216 states and 1756 transitions. [2018-07-24 02:37:07,002 INFO L78 Accepts]: Start accepts. Automaton has 1216 states and 1756 transitions. Word has length 106 [2018-07-24 02:37:07,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:37:07,003 INFO L471 AbstractCegarLoop]: Abstraction has 1216 states and 1756 transitions. [2018-07-24 02:37:07,003 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 02:37:07,003 INFO L276 IsEmpty]: Start isEmpty. Operand 1216 states and 1756 transitions. [2018-07-24 02:37:07,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2018-07-24 02:37:07,007 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:37:07,007 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:37:07,008 INFO L414 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:37:07,008 INFO L82 PathProgramCache]: Analyzing trace with hash 1904166622, now seen corresponding path program 1 times [2018-07-24 02:37:07,008 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:37:07,008 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:37:07,009 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:37:07,009 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:37:07,010 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:37:07,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:37:07,316 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 02:37:07,316 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 02:37:07,316 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 02:37:07,317 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 02:37:07,317 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 02:37:07,317 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 02:37:07,318 INFO L87 Difference]: Start difference. First operand 1216 states and 1756 transitions. Second operand 4 states. [2018-07-24 02:37:10,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:37:10,971 INFO L93 Difference]: Finished difference Result 4493 states and 6609 transitions. [2018-07-24 02:37:10,971 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 02:37:10,971 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 114 [2018-07-24 02:37:10,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:37:10,989 INFO L225 Difference]: With dead ends: 4493 [2018-07-24 02:37:10,989 INFO L226 Difference]: Without dead ends: 3279 [2018-07-24 02:37:10,992 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 02:37:10,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3279 states. [2018-07-24 02:37:11,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3279 to 2327. [2018-07-24 02:37:11,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2327 states. [2018-07-24 02:37:11,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2327 states to 2327 states and 3050 transitions. [2018-07-24 02:37:11,049 INFO L78 Accepts]: Start accepts. Automaton has 2327 states and 3050 transitions. Word has length 114 [2018-07-24 02:37:11,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:37:11,049 INFO L471 AbstractCegarLoop]: Abstraction has 2327 states and 3050 transitions. [2018-07-24 02:37:11,050 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 02:37:11,050 INFO L276 IsEmpty]: Start isEmpty. Operand 2327 states and 3050 transitions. [2018-07-24 02:37:11,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2018-07-24 02:37:11,065 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:37:11,066 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:37:11,066 INFO L414 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:37:11,066 INFO L82 PathProgramCache]: Analyzing trace with hash -1823808628, now seen corresponding path program 1 times [2018-07-24 02:37:11,066 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:37:11,067 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:37:11,067 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:37:11,068 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:37:11,068 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:37:11,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:37:11,376 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 02:37:11,377 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 02:37:11,377 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 02:37:11,378 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 02:37:11,378 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 02:37:11,378 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 02:37:11,378 INFO L87 Difference]: Start difference. First operand 2327 states and 3050 transitions. Second operand 4 states. [2018-07-24 02:37:16,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:37:16,641 INFO L93 Difference]: Finished difference Result 6525 states and 9004 transitions. [2018-07-24 02:37:16,647 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 02:37:16,647 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 165 [2018-07-24 02:37:16,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:37:16,669 INFO L225 Difference]: With dead ends: 6525 [2018-07-24 02:37:16,669 INFO L226 Difference]: Without dead ends: 4385 [2018-07-24 02:37:16,674 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 02:37:16,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4385 states. [2018-07-24 02:37:16,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4385 to 3437. [2018-07-24 02:37:16,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3437 states. [2018-07-24 02:37:16,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3437 states to 3437 states and 4404 transitions. [2018-07-24 02:37:16,758 INFO L78 Accepts]: Start accepts. Automaton has 3437 states and 4404 transitions. Word has length 165 [2018-07-24 02:37:16,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:37:16,759 INFO L471 AbstractCegarLoop]: Abstraction has 3437 states and 4404 transitions. [2018-07-24 02:37:16,759 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 02:37:16,760 INFO L276 IsEmpty]: Start isEmpty. Operand 3437 states and 4404 transitions. [2018-07-24 02:37:16,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2018-07-24 02:37:16,766 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:37:16,767 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 02:37:16,767 INFO L414 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:37:16,767 INFO L82 PathProgramCache]: Analyzing trace with hash -2097390069, now seen corresponding path program 1 times [2018-07-24 02:37:16,767 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:37:16,768 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:37:16,768 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:37:16,769 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:37:16,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:37:16,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:37:17,245 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2018-07-24 02:37:17,247 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 02:37:17,247 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 02:37:17,248 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 02:37:17,248 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 02:37:17,248 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 02:37:17,248 INFO L87 Difference]: Start difference. First operand 3437 states and 4404 transitions. Second operand 4 states. [2018-07-24 02:37:20,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:37:20,257 INFO L93 Difference]: Finished difference Result 7812 states and 10128 transitions. [2018-07-24 02:37:20,257 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 02:37:20,257 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 220 [2018-07-24 02:37:20,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:37:20,278 INFO L225 Difference]: With dead ends: 7812 [2018-07-24 02:37:20,278 INFO L226 Difference]: Without dead ends: 4562 [2018-07-24 02:37:20,284 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 02:37:20,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4562 states. [2018-07-24 02:37:20,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4562 to 4547. [2018-07-24 02:37:20,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4547 states. [2018-07-24 02:37:20,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4547 states to 4547 states and 5659 transitions. [2018-07-24 02:37:20,366 INFO L78 Accepts]: Start accepts. Automaton has 4547 states and 5659 transitions. Word has length 220 [2018-07-24 02:37:20,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:37:20,367 INFO L471 AbstractCegarLoop]: Abstraction has 4547 states and 5659 transitions. [2018-07-24 02:37:20,367 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 02:37:20,367 INFO L276 IsEmpty]: Start isEmpty. Operand 4547 states and 5659 transitions. [2018-07-24 02:37:20,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2018-07-24 02:37:20,373 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:37:20,373 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 02:37:20,373 INFO L414 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:37:20,374 INFO L82 PathProgramCache]: Analyzing trace with hash 509159037, now seen corresponding path program 1 times [2018-07-24 02:37:20,374 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:37:20,374 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:37:20,375 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:37:20,375 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:37:20,375 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:37:20,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:37:20,929 WARN L169 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 9 [2018-07-24 02:37:21,210 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 69 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 02:37:21,210 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 02:37:21,210 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 02:37:21,220 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:37:21,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:37:21,361 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 02:37:21,743 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 69 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2018-07-24 02:37:21,774 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-24 02:37:21,774 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3] total 8 [2018-07-24 02:37:21,775 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-24 02:37:21,775 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-24 02:37:21,776 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-07-24 02:37:21,776 INFO L87 Difference]: Start difference. First operand 4547 states and 5659 transitions. Second operand 9 states. [2018-07-24 02:37:24,194 WARN L169 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 12 [2018-07-24 02:37:34,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:37:34,173 INFO L93 Difference]: Finished difference Result 22305 states and 27973 transitions. [2018-07-24 02:37:34,173 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-07-24 02:37:34,173 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 241 [2018-07-24 02:37:34,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:37:34,242 INFO L225 Difference]: With dead ends: 22305 [2018-07-24 02:37:34,243 INFO L226 Difference]: Without dead ends: 16643 [2018-07-24 02:37:34,254 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2018-07-24 02:37:34,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16643 states. [2018-07-24 02:37:34,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16643 to 14402. [2018-07-24 02:37:34,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14402 states. [2018-07-24 02:37:34,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14402 states to 14402 states and 17050 transitions. [2018-07-24 02:37:34,644 INFO L78 Accepts]: Start accepts. Automaton has 14402 states and 17050 transitions. Word has length 241 [2018-07-24 02:37:34,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:37:34,645 INFO L471 AbstractCegarLoop]: Abstraction has 14402 states and 17050 transitions. [2018-07-24 02:37:34,645 INFO L472 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-24 02:37:34,645 INFO L276 IsEmpty]: Start isEmpty. Operand 14402 states and 17050 transitions. [2018-07-24 02:37:34,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2018-07-24 02:37:34,660 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:37:34,661 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 02:37:34,661 INFO L414 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:37:34,661 INFO L82 PathProgramCache]: Analyzing trace with hash 100928380, now seen corresponding path program 1 times [2018-07-24 02:37:34,662 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:37:34,662 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:37:34,663 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:37:34,663 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:37:34,663 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:37:34,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:37:35,053 WARN L169 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-07-24 02:37:35,364 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 30 proven. 176 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 02:37:35,365 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 02:37:35,365 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 02:37:35,373 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:37:35,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:37:35,498 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 02:37:35,551 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2018-07-24 02:37:35,573 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-24 02:37:35,574 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2018-07-24 02:37:35,575 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-24 02:37:35,575 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-24 02:37:35,575 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-07-24 02:37:35,575 INFO L87 Difference]: Start difference. First operand 14402 states and 17050 transitions. Second operand 9 states. [2018-07-24 02:37:46,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:37:46,059 INFO L93 Difference]: Finished difference Result 34732 states and 42244 transitions. [2018-07-24 02:37:46,059 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-07-24 02:37:46,059 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 319 [2018-07-24 02:37:46,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:37:46,100 INFO L225 Difference]: With dead ends: 34732 [2018-07-24 02:37:46,101 INFO L226 Difference]: Without dead ends: 20517 [2018-07-24 02:37:46,118 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 330 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=117, Invalid=225, Unknown=0, NotChecked=0, Total=342 [2018-07-24 02:37:46,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20517 states. [2018-07-24 02:37:46,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20517 to 15677. [2018-07-24 02:37:46,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15677 states. [2018-07-24 02:37:46,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15677 states to 15677 states and 18327 transitions. [2018-07-24 02:37:46,363 INFO L78 Accepts]: Start accepts. Automaton has 15677 states and 18327 transitions. Word has length 319 [2018-07-24 02:37:46,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:37:46,364 INFO L471 AbstractCegarLoop]: Abstraction has 15677 states and 18327 transitions. [2018-07-24 02:37:46,364 INFO L472 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-24 02:37:46,364 INFO L276 IsEmpty]: Start isEmpty. Operand 15677 states and 18327 transitions. [2018-07-24 02:37:46,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2018-07-24 02:37:46,379 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:37:46,379 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 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 02:37:46,379 INFO L414 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:37:46,379 INFO L82 PathProgramCache]: Analyzing trace with hash 494519103, now seen corresponding path program 1 times [2018-07-24 02:37:46,380 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:37:46,380 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:37:46,380 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:37:46,381 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:37:46,381 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:37:46,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:37:47,113 WARN L169 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 11 [2018-07-24 02:37:47,259 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 275 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2018-07-24 02:37:47,259 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 02:37:47,260 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 02:37:47,260 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 02:37:47,260 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 02:37:47,261 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-24 02:37:47,261 INFO L87 Difference]: Start difference. First operand 15677 states and 18327 transitions. Second operand 5 states. [2018-07-24 02:37:50,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:37:50,849 INFO L93 Difference]: Finished difference Result 31723 states and 37344 transitions. [2018-07-24 02:37:50,849 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-24 02:37:50,849 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 322 [2018-07-24 02:37:50,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:37:50,872 INFO L225 Difference]: With dead ends: 31723 [2018-07-24 02:37:50,872 INFO L226 Difference]: Without dead ends: 15112 [2018-07-24 02:37:50,891 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-24 02:37:50,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15112 states. [2018-07-24 02:37:51,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15112 to 14184. [2018-07-24 02:37:51,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14184 states. [2018-07-24 02:37:51,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14184 states to 14184 states and 16005 transitions. [2018-07-24 02:37:51,072 INFO L78 Accepts]: Start accepts. Automaton has 14184 states and 16005 transitions. Word has length 322 [2018-07-24 02:37:51,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:37:51,073 INFO L471 AbstractCegarLoop]: Abstraction has 14184 states and 16005 transitions. [2018-07-24 02:37:51,073 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 02:37:51,073 INFO L276 IsEmpty]: Start isEmpty. Operand 14184 states and 16005 transitions. [2018-07-24 02:37:51,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2018-07-24 02:37:51,086 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:37:51,087 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:37:51,087 INFO L414 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:37:51,087 INFO L82 PathProgramCache]: Analyzing trace with hash -860841496, now seen corresponding path program 1 times [2018-07-24 02:37:51,087 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:37:51,088 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:37:51,088 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:37:51,089 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:37:51,089 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:37:51,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:37:51,610 WARN L169 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 11 [2018-07-24 02:37:51,655 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 292 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2018-07-24 02:37:51,655 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 02:37:51,655 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 02:37:51,656 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 02:37:51,656 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 02:37:51,656 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 02:37:51,657 INFO L87 Difference]: Start difference. First operand 14184 states and 16005 transitions. Second operand 4 states. [2018-07-24 02:37:53,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:37:53,470 INFO L93 Difference]: Finished difference Result 28007 states and 31723 transitions. [2018-07-24 02:37:53,470 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 02:37:53,470 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 323 [2018-07-24 02:37:53,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:37:53,495 INFO L225 Difference]: With dead ends: 28007 [2018-07-24 02:37:53,495 INFO L226 Difference]: Without dead ends: 15679 [2018-07-24 02:37:53,510 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 02:37:53,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15679 states. [2018-07-24 02:37:53,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15679 to 14924. [2018-07-24 02:37:53,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14924 states. [2018-07-24 02:37:53,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14924 states to 14924 states and 16687 transitions. [2018-07-24 02:37:53,700 INFO L78 Accepts]: Start accepts. Automaton has 14924 states and 16687 transitions. Word has length 323 [2018-07-24 02:37:53,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:37:53,701 INFO L471 AbstractCegarLoop]: Abstraction has 14924 states and 16687 transitions. [2018-07-24 02:37:53,701 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 02:37:53,701 INFO L276 IsEmpty]: Start isEmpty. Operand 14924 states and 16687 transitions. [2018-07-24 02:37:53,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2018-07-24 02:37:53,715 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:37:53,716 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 02:37:53,716 INFO L414 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:37:53,716 INFO L82 PathProgramCache]: Analyzing trace with hash 827806437, now seen corresponding path program 1 times [2018-07-24 02:37:53,717 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:37:53,717 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:37:53,718 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:37:53,718 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:37:53,718 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:37:53,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:37:54,674 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 125 proven. 69 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 02:37:54,675 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 02:37:54,675 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 02:37:54,685 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:37:54,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:37:54,812 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 02:37:55,391 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 159 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 02:37:55,412 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-24 02:37:55,412 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 10 [2018-07-24 02:37:55,413 INFO L450 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-07-24 02:37:55,413 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-07-24 02:37:55,413 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-07-24 02:37:55,414 INFO L87 Difference]: Start difference. First operand 14924 states and 16687 transitions. Second operand 10 states. [2018-07-24 02:38:04,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:38:04,529 INFO L93 Difference]: Finished difference Result 35612 states and 39752 transitions. [2018-07-24 02:38:04,529 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-07-24 02:38:04,529 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 337 [2018-07-24 02:38:04,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:38:04,555 INFO L225 Difference]: With dead ends: 35612 [2018-07-24 02:38:04,555 INFO L226 Difference]: Without dead ends: 21245 [2018-07-24 02:38:04,574 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 341 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2018-07-24 02:38:04,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21245 states. [2018-07-24 02:38:04,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21245 to 16022. [2018-07-24 02:38:04,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16022 states. [2018-07-24 02:38:04,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16022 states to 16022 states and 17389 transitions. [2018-07-24 02:38:04,821 INFO L78 Accepts]: Start accepts. Automaton has 16022 states and 17389 transitions. Word has length 337 [2018-07-24 02:38:04,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:38:04,821 INFO L471 AbstractCegarLoop]: Abstraction has 16022 states and 17389 transitions. [2018-07-24 02:38:04,822 INFO L472 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-07-24 02:38:04,822 INFO L276 IsEmpty]: Start isEmpty. Operand 16022 states and 17389 transitions. [2018-07-24 02:38:04,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2018-07-24 02:38:04,835 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:38:04,836 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:38:04,836 INFO L414 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:38:04,839 INFO L82 PathProgramCache]: Analyzing trace with hash -537643111, now seen corresponding path program 1 times [2018-07-24 02:38:04,839 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:38:04,839 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:38:04,840 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:38:04,840 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:38:04,840 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:38:04,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:38:05,677 INFO L134 CoverageAnalysis]: Checked inductivity of 382 backedges. 104 proven. 181 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2018-07-24 02:38:05,677 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 02:38:05,677 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 02:38:05,686 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:38:05,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:38:05,808 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 02:38:06,113 WARN L169 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 25 [2018-07-24 02:38:06,705 INFO L134 CoverageAnalysis]: Checked inductivity of 382 backedges. 104 proven. 181 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2018-07-24 02:38:06,737 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-24 02:38:06,737 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3] total 6 [2018-07-24 02:38:06,738 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-24 02:38:06,738 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-24 02:38:06,738 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-07-24 02:38:06,739 INFO L87 Difference]: Start difference. First operand 16022 states and 17389 transitions. Second operand 7 states. [2018-07-24 02:38:10,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:38:10,860 INFO L93 Difference]: Finished difference Result 33521 states and 36440 transitions. [2018-07-24 02:38:10,860 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-24 02:38:10,860 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 349 [2018-07-24 02:38:10,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:38:10,877 INFO L225 Difference]: With dead ends: 33521 [2018-07-24 02:38:10,877 INFO L226 Difference]: Without dead ends: 14876 [2018-07-24 02:38:10,890 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 353 GetRequests, 347 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-07-24 02:38:10,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14876 states. [2018-07-24 02:38:11,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14876 to 11170. [2018-07-24 02:38:11,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11170 states. [2018-07-24 02:38:11,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11170 states to 11170 states and 11957 transitions. [2018-07-24 02:38:11,054 INFO L78 Accepts]: Start accepts. Automaton has 11170 states and 11957 transitions. Word has length 349 [2018-07-24 02:38:11,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:38:11,054 INFO L471 AbstractCegarLoop]: Abstraction has 11170 states and 11957 transitions. [2018-07-24 02:38:11,055 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-24 02:38:11,055 INFO L276 IsEmpty]: Start isEmpty. Operand 11170 states and 11957 transitions. [2018-07-24 02:38:11,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 436 [2018-07-24 02:38:11,069 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:38:11,070 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 02:38:11,070 INFO L414 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:38:11,070 INFO L82 PathProgramCache]: Analyzing trace with hash -115186598, now seen corresponding path program 1 times [2018-07-24 02:38:11,070 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:38:11,070 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:38:11,071 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:38:11,071 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:38:11,072 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:38:11,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:38:12,248 WARN L169 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 14 [2018-07-24 02:38:12,803 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 91 proven. 337 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 02:38:12,803 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 02:38:12,803 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 02:38:12,811 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:38:12,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:38:12,959 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 02:38:16,708 WARN L169 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 43 DAG size of output: 19 [2018-07-24 02:38:17,516 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 195 proven. 233 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 02:38:17,538 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-24 02:38:17,538 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4] total 9 [2018-07-24 02:38:17,539 INFO L450 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-07-24 02:38:17,539 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-07-24 02:38:17,539 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=57, Unknown=2, NotChecked=0, Total=90 [2018-07-24 02:38:17,540 INFO L87 Difference]: Start difference. First operand 11170 states and 11957 transitions. Second operand 10 states. [2018-07-24 02:38:18,760 WARN L169 SmtUtils]: Spent 741.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2018-07-24 02:41:05,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:41:05,105 INFO L93 Difference]: Finished difference Result 21977 states and 23575 transitions. [2018-07-24 02:41:05,106 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-07-24 02:41:05,106 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 435 [2018-07-24 02:41:05,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:41:05,118 INFO L225 Difference]: With dead ends: 21977 [2018-07-24 02:41:05,118 INFO L226 Difference]: Without dead ends: 13405 [2018-07-24 02:41:05,124 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 448 GetRequests, 432 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=81, Invalid=157, Unknown=2, NotChecked=0, Total=240 [2018-07-24 02:41:05,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13405 states. [2018-07-24 02:41:05,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13405 to 11355. [2018-07-24 02:41:05,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11355 states. [2018-07-24 02:41:05,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11355 states to 11355 states and 12130 transitions. [2018-07-24 02:41:05,271 INFO L78 Accepts]: Start accepts. Automaton has 11355 states and 12130 transitions. Word has length 435 [2018-07-24 02:41:05,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:41:05,272 INFO L471 AbstractCegarLoop]: Abstraction has 11355 states and 12130 transitions. [2018-07-24 02:41:05,272 INFO L472 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-07-24 02:41:05,272 INFO L276 IsEmpty]: Start isEmpty. Operand 11355 states and 12130 transitions. [2018-07-24 02:41:05,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 568 [2018-07-24 02:41:05,292 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:41:05,292 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 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 02:41:05,292 INFO L414 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:41:05,293 INFO L82 PathProgramCache]: Analyzing trace with hash -552674209, now seen corresponding path program 1 times [2018-07-24 02:41:05,293 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:41:05,293 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:41:05,294 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:41:05,294 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:41:05,294 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:41:05,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:41:05,975 INFO L134 CoverageAnalysis]: Checked inductivity of 1092 backedges. 908 proven. 10 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2018-07-24 02:41:05,976 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 02:41:05,976 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 02:41:05,984 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:41:06,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:41:06,182 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 02:41:06,538 INFO L134 CoverageAnalysis]: Checked inductivity of 1092 backedges. 805 proven. 0 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2018-07-24 02:41:06,559 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-24 02:41:06,560 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 7 [2018-07-24 02:41:06,561 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-24 02:41:06,561 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-24 02:41:06,561 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-07-24 02:41:06,561 INFO L87 Difference]: Start difference. First operand 11355 states and 12130 transitions. Second operand 7 states. Received shutdown request... [2018-07-24 02:41:08,123 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-24 02:41:08,123 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-24 02:41:08,128 WARN L202 ceAbstractionStarter]: Timeout [2018-07-24 02:41:08,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 02:41:08 BoogieIcfgContainer [2018-07-24 02:41:08,129 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 02:41:08,130 INFO L168 Benchmark]: Toolchain (without parser) took 255446.46 ms. Allocated memory was 1.5 GB in the beginning and 3.2 GB in the end (delta: 1.7 GB). Free memory was 1.4 GB in the beginning and 2.6 GB in the end (delta: -1.2 GB). Peak memory consumption was 470.1 MB. Max. memory is 7.1 GB. [2018-07-24 02:41:08,131 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-24 02:41:08,131 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1070.09 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 63.4 MB). Peak memory consumption was 63.4 MB. Max. memory is 7.1 GB. [2018-07-24 02:41:08,132 INFO L168 Benchmark]: Boogie Procedure Inliner took 172.99 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-07-24 02:41:08,133 INFO L168 Benchmark]: Boogie Preprocessor took 403.36 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 800.1 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -924.4 MB). Peak memory consumption was 52.6 MB. Max. memory is 7.1 GB. [2018-07-24 02:41:08,134 INFO L168 Benchmark]: RCFGBuilder took 4366.01 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 187.1 MB). Peak memory consumption was 187.1 MB. Max. memory is 7.1 GB. [2018-07-24 02:41:08,135 INFO L168 Benchmark]: TraceAbstraction took 249427.82 ms. Allocated memory was 2.3 GB in the beginning and 3.2 GB in the end (delta: 889.2 MB). Free memory was 2.0 GB in the beginning and 2.6 GB in the end (delta: -566.4 MB). Peak memory consumption was 322.7 MB. Max. memory is 7.1 GB. [2018-07-24 02:41:08,140 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 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1070.09 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 63.4 MB). Peak memory consumption was 63.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 172.99 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 403.36 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 800.1 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -924.4 MB). Peak memory consumption was 52.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4366.01 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 187.1 MB). Peak memory consumption was 187.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 249427.82 ms. Allocated memory was 2.3 GB in the beginning and 3.2 GB in the end (delta: 889.2 MB). Free memory was 2.0 GB in the beginning and 2.6 GB in the end (delta: -566.4 MB). Peak memory consumption was 322.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 114]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 114). Cancelled while BasicCegarLoop was constructing difference of abstraction (11355states) and interpolant automaton (currently 6 states, 7 states before enhancement), while ReachableStatesComputation was computing reachable states (2415 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 284 locations, 1 error locations. TIMEOUT Result, 249.3s OverallTime, 13 OverallIterations, 6 TraceHistogramMax, 230.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3208 SDtfs, 14593 SDslu, 2895 SDs, 0 SdLazy, 37445 SolverSat, 5226 SolverUnsat, 205 SolverUnknown, 0 SolverNotchecked, 216.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2367 GetRequests, 2268 SyntacticMatches, 8 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 10.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16022occurred in iteration=10, 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: 1.8s AutomataMinimizationTime, 12 MinimizatonAttempts, 21864 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 13.6s InterpolantComputationTime, 5783 NumberOfCodeBlocks, 5783 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 5764 ConstructedInterpolants, 381 QuantifiedInterpolants, 12838010 SizeOfPredicates, 4 NumberOfNonLiveVariables, 2972 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 19 InterpolantComputations, 9 PerfectInterpolantSequences, 4463/5844 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/Problem11_label50_true-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_02-41-08-155.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem11_label50_true-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-24_02-41-08-155.csv Completed graceful shutdown