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/Problem03_label23_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 01:26:31,715 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 01:26:31,718 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 01:26:31,733 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 01:26:31,734 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 01:26:31,735 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 01:26:31,736 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 01:26:31,739 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 01:26:31,741 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 01:26:31,749 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 01:26:31,750 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 01:26:31,750 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 01:26:31,751 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 01:26:31,752 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 01:26:31,753 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 01:26:31,754 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 01:26:31,755 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 01:26:31,757 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 01:26:31,759 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 01:26:31,760 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 01:26:31,761 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 01:26:31,762 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 01:26:31,765 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-07-24 01:26:31,773 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 01:26:31,790 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 01:26:31,791 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 01:26:31,791 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 01:26:31,792 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-07-24 01:26:31,792 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-07-24 01:26:31,792 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-07-24 01:26:31,793 INFO L133 SettingsManager]: * Use SBE=true [2018-07-24 01:26:31,793 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 01:26:31,793 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 01:26:31,793 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 01:26:31,794 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 01:26:31,794 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 01:26:31,794 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 01:26:31,794 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 01:26:31,794 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 01:26:31,794 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 01:26:31,795 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 01:26:31,795 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 01:26:31,795 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 01:26:31,795 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 01:26:31,795 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 01:26:31,796 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 01:26:31,796 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 01:26:31,796 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-07-24 01:26:31,796 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 01:26:31,796 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 01:26:31,797 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 01:26:31,797 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 01:26:31,860 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 01:26:31,877 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 01:26:31,881 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 01:26:31,883 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 01:26:31,883 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 01:26:31,884 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label23_true-unreach-call.c [2018-07-24 01:26:32,267 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/418c1240f/0e07252860444e91a1583ab9f50c6b8d/FLAG4e86d5974 [2018-07-24 01:26:32,633 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 01:26:32,634 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label23_true-unreach-call.c [2018-07-24 01:26:32,664 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/418c1240f/0e07252860444e91a1583ab9f50c6b8d/FLAG4e86d5974 [2018-07-24 01:26:32,682 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/418c1240f/0e07252860444e91a1583ab9f50c6b8d [2018-07-24 01:26:32,694 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 01:26:32,696 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 01:26:32,697 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 01:26:32,698 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 01:26:32,705 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 01:26:32,706 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 01:26:32" (1/1) ... [2018-07-24 01:26:32,709 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f96ba2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:26:32, skipping insertion in model container [2018-07-24 01:26:32,709 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 01:26:32" (1/1) ... [2018-07-24 01:26:32,996 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 01:26:33,501 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 01:26:33,521 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 01:26:33,800 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 01:26:33,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:26:33 WrapperNode [2018-07-24 01:26:33,875 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 01:26:33,876 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 01:26:33,876 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 01:26:33,876 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 01:26:33,887 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:26:33" (1/1) ... [2018-07-24 01:26:33,922 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:26:33" (1/1) ... [2018-07-24 01:26:34,034 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 01:26:34,035 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 01:26:34,035 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 01:26:34,035 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 01:26:34,047 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:26:33" (1/1) ... [2018-07-24 01:26:34,047 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:26:33" (1/1) ... [2018-07-24 01:26:34,056 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:26:33" (1/1) ... [2018-07-24 01:26:34,057 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:26:33" (1/1) ... [2018-07-24 01:26:34,388 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:26:33" (1/1) ... [2018-07-24 01:26:34,415 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:26:33" (1/1) ... [2018-07-24 01:26:34,433 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:26:33" (1/1) ... [2018-07-24 01:26:34,444 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 01:26:34,445 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 01:26:34,445 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 01:26:34,445 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 01:26:34,446 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:26:33" (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 01:26:34,516 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-07-24 01:26:34,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 01:26:34,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 01:26:40,241 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 01:26:40,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 01:26:40 BoogieIcfgContainer [2018-07-24 01:26:40,243 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 01:26:40,245 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 01:26:40,245 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 01:26:40,248 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 01:26:40,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 01:26:32" (1/3) ... [2018-07-24 01:26:40,250 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27d9a3c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 01:26:40, skipping insertion in model container [2018-07-24 01:26:40,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:26:33" (2/3) ... [2018-07-24 01:26:40,250 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27d9a3c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 01:26:40, skipping insertion in model container [2018-07-24 01:26:40,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 01:26:40" (3/3) ... [2018-07-24 01:26:40,253 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem03_label23_true-unreach-call.c [2018-07-24 01:26:40,268 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 01:26:40,278 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 01:26:40,332 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 01:26:40,333 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 01:26:40,334 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 01:26:40,334 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 01:26:40,334 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 01:26:40,334 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 01:26:40,334 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 01:26:40,335 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 01:26:40,335 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 01:26:40,369 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states. [2018-07-24 01:26:40,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2018-07-24 01:26:40,387 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:26:40,388 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:26:40,388 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:26:40,393 INFO L82 PathProgramCache]: Analyzing trace with hash 1121877156, now seen corresponding path program 1 times [2018-07-24 01:26:40,395 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:26:40,395 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:26:40,451 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:26:40,452 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:26:40,452 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:26:40,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:26:41,429 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 01:26:41,432 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 01:26:41,432 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 01:26:41,438 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 01:26:41,455 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 01:26:41,456 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 01:26:41,460 INFO L87 Difference]: Start difference. First operand 303 states. Second operand 4 states. [2018-07-24 01:26:45,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:26:45,272 INFO L93 Difference]: Finished difference Result 1079 states and 1933 transitions. [2018-07-24 01:26:45,273 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 01:26:45,274 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 172 [2018-07-24 01:26:45,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:26:45,301 INFO L225 Difference]: With dead ends: 1079 [2018-07-24 01:26:45,302 INFO L226 Difference]: Without dead ends: 769 [2018-07-24 01:26:45,307 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 01:26:45,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 769 states. [2018-07-24 01:26:45,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 769 to 513. [2018-07-24 01:26:45,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 513 states. [2018-07-24 01:26:45,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 851 transitions. [2018-07-24 01:26:45,453 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 851 transitions. Word has length 172 [2018-07-24 01:26:45,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:26:45,454 INFO L471 AbstractCegarLoop]: Abstraction has 513 states and 851 transitions. [2018-07-24 01:26:45,454 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 01:26:45,454 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 851 transitions. [2018-07-24 01:26:45,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2018-07-24 01:26:45,460 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:26:45,460 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-24 01:26:45,461 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:26:45,473 INFO L82 PathProgramCache]: Analyzing trace with hash -413316829, now seen corresponding path program 1 times [2018-07-24 01:26:45,473 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:26:45,473 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:26:45,474 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:26:45,475 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:26:45,475 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:26:45,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:26:45,629 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 01:26:45,630 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 01:26:45,630 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-24 01:26:45,632 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 01:26:45,632 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 01:26:45,633 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 01:26:45,633 INFO L87 Difference]: Start difference. First operand 513 states and 851 transitions. Second operand 3 states. [2018-07-24 01:26:47,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:26:47,817 INFO L93 Difference]: Finished difference Result 1449 states and 2462 transitions. [2018-07-24 01:26:47,817 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 01:26:47,818 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 181 [2018-07-24 01:26:47,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:26:47,824 INFO L225 Difference]: With dead ends: 1449 [2018-07-24 01:26:47,824 INFO L226 Difference]: Without dead ends: 938 [2018-07-24 01:26:47,827 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 01:26:47,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 938 states. [2018-07-24 01:26:47,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 938 to 923. [2018-07-24 01:26:47,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 923 states. [2018-07-24 01:26:47,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 923 states to 923 states and 1514 transitions. [2018-07-24 01:26:47,904 INFO L78 Accepts]: Start accepts. Automaton has 923 states and 1514 transitions. Word has length 181 [2018-07-24 01:26:47,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:26:47,904 INFO L471 AbstractCegarLoop]: Abstraction has 923 states and 1514 transitions. [2018-07-24 01:26:47,904 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 01:26:47,904 INFO L276 IsEmpty]: Start isEmpty. Operand 923 states and 1514 transitions. [2018-07-24 01:26:47,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2018-07-24 01:26:47,918 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:26:47,919 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-24 01:26:47,919 INFO L414 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:26:47,919 INFO L82 PathProgramCache]: Analyzing trace with hash -1137369717, now seen corresponding path program 1 times [2018-07-24 01:26:47,920 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:26:47,920 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:26:47,922 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:26:47,922 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:26:47,923 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:26:47,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:26:48,088 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 01:26:48,088 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 01:26:48,088 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 01:26:48,089 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 01:26:48,089 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 01:26:48,089 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 01:26:48,090 INFO L87 Difference]: Start difference. First operand 923 states and 1514 transitions. Second operand 4 states. [2018-07-24 01:26:51,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:26:51,533 INFO L93 Difference]: Finished difference Result 3532 states and 5873 transitions. [2018-07-24 01:26:51,533 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 01:26:51,534 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 182 [2018-07-24 01:26:51,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:26:51,549 INFO L225 Difference]: With dead ends: 3532 [2018-07-24 01:26:51,549 INFO L226 Difference]: Without dead ends: 2611 [2018-07-24 01:26:51,552 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 01:26:51,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2611 states. [2018-07-24 01:26:51,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2611 to 1751. [2018-07-24 01:26:51,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1751 states. [2018-07-24 01:26:51,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1751 states to 1751 states and 2699 transitions. [2018-07-24 01:26:51,598 INFO L78 Accepts]: Start accepts. Automaton has 1751 states and 2699 transitions. Word has length 182 [2018-07-24 01:26:51,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:26:51,599 INFO L471 AbstractCegarLoop]: Abstraction has 1751 states and 2699 transitions. [2018-07-24 01:26:51,599 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 01:26:51,599 INFO L276 IsEmpty]: Start isEmpty. Operand 1751 states and 2699 transitions. [2018-07-24 01:26:51,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2018-07-24 01:26:51,603 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:26:51,603 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-24 01:26:51,604 INFO L414 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:26:51,604 INFO L82 PathProgramCache]: Analyzing trace with hash -1234356994, now seen corresponding path program 1 times [2018-07-24 01:26:51,604 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:26:51,604 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:26:51,605 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:26:51,605 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:26:51,605 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:26:51,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:26:51,731 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 01:26:51,731 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 01:26:51,731 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-24 01:26:51,732 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 01:26:51,732 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 01:26:51,732 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 01:26:51,733 INFO L87 Difference]: Start difference. First operand 1751 states and 2699 transitions. Second operand 3 states. [2018-07-24 01:26:53,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:26:53,203 INFO L93 Difference]: Finished difference Result 4329 states and 6639 transitions. [2018-07-24 01:26:53,209 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 01:26:53,210 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 183 [2018-07-24 01:26:53,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:26:53,225 INFO L225 Difference]: With dead ends: 4329 [2018-07-24 01:26:53,225 INFO L226 Difference]: Without dead ends: 2580 [2018-07-24 01:26:53,230 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 01:26:53,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2580 states. [2018-07-24 01:26:53,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2580 to 2579. [2018-07-24 01:26:53,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2579 states. [2018-07-24 01:26:53,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2579 states to 2579 states and 3884 transitions. [2018-07-24 01:26:53,362 INFO L78 Accepts]: Start accepts. Automaton has 2579 states and 3884 transitions. Word has length 183 [2018-07-24 01:26:53,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:26:53,363 INFO L471 AbstractCegarLoop]: Abstraction has 2579 states and 3884 transitions. [2018-07-24 01:26:53,363 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 01:26:53,363 INFO L276 IsEmpty]: Start isEmpty. Operand 2579 states and 3884 transitions. [2018-07-24 01:26:53,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2018-07-24 01:26:53,369 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:26:53,370 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2018-07-24 01:26:53,370 INFO L414 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:26:53,371 INFO L82 PathProgramCache]: Analyzing trace with hash 2013561591, now seen corresponding path program 1 times [2018-07-24 01:26:53,371 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:26:53,371 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:26:53,373 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:26:53,373 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:26:53,373 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:26:53,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:26:53,682 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-07-24 01:26:53,682 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 01:26:53,682 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 01:26:53,683 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 01:26:53,683 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 01:26:53,683 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 01:26:53,684 INFO L87 Difference]: Start difference. First operand 2579 states and 3884 transitions. Second operand 3 states. [2018-07-24 01:26:55,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:26:55,802 INFO L93 Difference]: Finished difference Result 7612 states and 11510 transitions. [2018-07-24 01:26:55,802 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 01:26:55,802 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 189 [2018-07-24 01:26:55,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:26:55,827 INFO L225 Difference]: With dead ends: 7612 [2018-07-24 01:26:55,827 INFO L226 Difference]: Without dead ends: 5035 [2018-07-24 01:26:55,833 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 01:26:55,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5035 states. [2018-07-24 01:26:55,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5035 to 5032. [2018-07-24 01:26:55,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5032 states. [2018-07-24 01:26:55,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5032 states to 5032 states and 7119 transitions. [2018-07-24 01:26:55,930 INFO L78 Accepts]: Start accepts. Automaton has 5032 states and 7119 transitions. Word has length 189 [2018-07-24 01:26:55,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:26:55,931 INFO L471 AbstractCegarLoop]: Abstraction has 5032 states and 7119 transitions. [2018-07-24 01:26:55,931 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 01:26:55,931 INFO L276 IsEmpty]: Start isEmpty. Operand 5032 states and 7119 transitions. [2018-07-24 01:26:55,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2018-07-24 01:26:55,940 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:26:55,940 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 01:26:55,940 INFO L414 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:26:55,941 INFO L82 PathProgramCache]: Analyzing trace with hash -1171437102, now seen corresponding path program 1 times [2018-07-24 01:26:55,941 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:26:55,941 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:26:55,942 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:26:55,942 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:26:55,942 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:26:55,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:26:56,428 WARN L169 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 8 [2018-07-24 01:26:56,489 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-07-24 01:26:56,489 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 01:26:56,490 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 01:26:56,502 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:26:56,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:26:56,631 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 01:26:56,899 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 01:26:56,930 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-24 01:26:56,930 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2018-07-24 01:26:56,931 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 01:26:56,931 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 01:26:56,931 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 01:26:56,931 INFO L87 Difference]: Start difference. First operand 5032 states and 7119 transitions. Second operand 6 states. [2018-07-24 01:26:57,406 WARN L169 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 6 [2018-07-24 01:27:02,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:27:02,712 INFO L93 Difference]: Finished difference Result 22919 states and 32315 transitions. [2018-07-24 01:27:02,712 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-24 01:27:02,713 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 191 [2018-07-24 01:27:02,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:27:02,779 INFO L225 Difference]: With dead ends: 22919 [2018-07-24 01:27:02,779 INFO L226 Difference]: Without dead ends: 17889 [2018-07-24 01:27:02,789 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 189 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2018-07-24 01:27:02,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17889 states. [2018-07-24 01:27:03,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17889 to 16048. [2018-07-24 01:27:03,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16048 states. [2018-07-24 01:27:03,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16048 states to 16048 states and 19447 transitions. [2018-07-24 01:27:03,107 INFO L78 Accepts]: Start accepts. Automaton has 16048 states and 19447 transitions. Word has length 191 [2018-07-24 01:27:03,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:27:03,107 INFO L471 AbstractCegarLoop]: Abstraction has 16048 states and 19447 transitions. [2018-07-24 01:27:03,108 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 01:27:03,108 INFO L276 IsEmpty]: Start isEmpty. Operand 16048 states and 19447 transitions. [2018-07-24 01:27:03,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2018-07-24 01:27:03,123 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:27:03,123 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 01:27:03,124 INFO L414 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:27:03,124 INFO L82 PathProgramCache]: Analyzing trace with hash 1288004966, now seen corresponding path program 1 times [2018-07-24 01:27:03,124 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:27:03,124 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:27:03,125 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:27:03,126 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:27:03,126 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:27:03,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:27:03,483 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-07-24 01:27:03,483 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 01:27:03,483 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 01:27:03,484 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 01:27:03,485 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 01:27:03,485 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 01:27:03,485 INFO L87 Difference]: Start difference. First operand 16048 states and 19447 transitions. Second operand 4 states. [2018-07-24 01:27:06,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:27:06,835 INFO L93 Difference]: Finished difference Result 63288 states and 76652 transitions. [2018-07-24 01:27:06,836 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 01:27:06,836 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 202 [2018-07-24 01:27:06,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:27:06,927 INFO L225 Difference]: With dead ends: 63288 [2018-07-24 01:27:06,928 INFO L226 Difference]: Without dead ends: 47242 [2018-07-24 01:27:06,954 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 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 01:27:06,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47242 states. [2018-07-24 01:27:07,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47242 to 47238. [2018-07-24 01:27:07,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47238 states. [2018-07-24 01:27:07,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47238 states to 47238 states and 56762 transitions. [2018-07-24 01:27:07,966 INFO L78 Accepts]: Start accepts. Automaton has 47238 states and 56762 transitions. Word has length 202 [2018-07-24 01:27:07,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:27:07,967 INFO L471 AbstractCegarLoop]: Abstraction has 47238 states and 56762 transitions. [2018-07-24 01:27:07,967 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 01:27:07,967 INFO L276 IsEmpty]: Start isEmpty. Operand 47238 states and 56762 transitions. [2018-07-24 01:27:07,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2018-07-24 01:27:07,993 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:27:07,993 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:27:07,993 INFO L414 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:27:07,994 INFO L82 PathProgramCache]: Analyzing trace with hash 1750562163, now seen corresponding path program 1 times [2018-07-24 01:27:07,994 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:27:07,994 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:27:07,995 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:27:07,995 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:27:07,995 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:27:08,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:27:08,299 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-07-24 01:27:08,300 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 01:27:08,300 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 01:27:08,300 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 01:27:08,301 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 01:27:08,301 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 01:27:08,301 INFO L87 Difference]: Start difference. First operand 47238 states and 56762 transitions. Second operand 3 states. [2018-07-24 01:27:10,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:27:10,858 INFO L93 Difference]: Finished difference Result 100421 states and 120953 transitions. [2018-07-24 01:27:10,859 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 01:27:10,859 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 268 [2018-07-24 01:27:10,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:27:10,949 INFO L225 Difference]: With dead ends: 100421 [2018-07-24 01:27:10,950 INFO L226 Difference]: Without dead ends: 53185 [2018-07-24 01:27:10,994 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 01:27:11,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53185 states. [2018-07-24 01:27:11,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53185 to 53172. [2018-07-24 01:27:11,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53172 states. [2018-07-24 01:27:11,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53172 states to 53172 states and 62755 transitions. [2018-07-24 01:27:11,674 INFO L78 Accepts]: Start accepts. Automaton has 53172 states and 62755 transitions. Word has length 268 [2018-07-24 01:27:11,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:27:11,674 INFO L471 AbstractCegarLoop]: Abstraction has 53172 states and 62755 transitions. [2018-07-24 01:27:11,674 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 01:27:11,674 INFO L276 IsEmpty]: Start isEmpty. Operand 53172 states and 62755 transitions. [2018-07-24 01:27:11,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2018-07-24 01:27:11,704 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:27:11,704 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 01:27:11,704 INFO L414 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:27:11,705 INFO L82 PathProgramCache]: Analyzing trace with hash -1115151776, now seen corresponding path program 1 times [2018-07-24 01:27:11,705 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:27:11,705 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:27:11,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:27:11,706 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:27:11,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:27:11,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:27:12,292 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2018-07-24 01:27:12,292 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 01:27:12,292 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-24 01:27:12,293 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 01:27:12,293 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 01:27:12,293 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 01:27:12,293 INFO L87 Difference]: Start difference. First operand 53172 states and 62755 transitions. Second operand 3 states. [2018-07-24 01:27:14,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:27:14,150 INFO L93 Difference]: Finished difference Result 135500 states and 158960 transitions. [2018-07-24 01:27:14,150 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 01:27:14,150 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 280 [2018-07-24 01:27:14,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:27:14,250 INFO L225 Difference]: With dead ends: 135500 [2018-07-24 01:27:14,250 INFO L226 Difference]: Without dead ends: 82330 [2018-07-24 01:27:14,303 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 01:27:14,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82330 states. [2018-07-24 01:27:15,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82330 to 82324. [2018-07-24 01:27:15,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82324 states. [2018-07-24 01:27:15,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82324 states to 82324 states and 96080 transitions. [2018-07-24 01:27:15,247 INFO L78 Accepts]: Start accepts. Automaton has 82324 states and 96080 transitions. Word has length 280 [2018-07-24 01:27:15,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:27:15,247 INFO L471 AbstractCegarLoop]: Abstraction has 82324 states and 96080 transitions. [2018-07-24 01:27:15,247 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 01:27:15,247 INFO L276 IsEmpty]: Start isEmpty. Operand 82324 states and 96080 transitions. [2018-07-24 01:27:15,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2018-07-24 01:27:15,286 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:27:15,287 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 01:27:15,287 INFO L414 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:27:15,287 INFO L82 PathProgramCache]: Analyzing trace with hash -1427698218, now seen corresponding path program 1 times [2018-07-24 01:27:15,288 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:27:15,288 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:27:15,289 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:27:15,289 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:27:15,289 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:27:15,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:27:15,956 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 141 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 01:27:15,956 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 01:27:15,957 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 01:27:15,957 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 01:27:15,957 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 01:27:15,957 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 01:27:15,958 INFO L87 Difference]: Start difference. First operand 82324 states and 96080 transitions. Second operand 4 states. [2018-07-24 01:27:18,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:27:18,662 INFO L93 Difference]: Finished difference Result 169588 states and 198437 transitions. [2018-07-24 01:27:18,663 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 01:27:18,663 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 283 [2018-07-24 01:27:18,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:27:18,768 INFO L225 Difference]: With dead ends: 169588 [2018-07-24 01:27:18,768 INFO L226 Difference]: Without dead ends: 87266 [2018-07-24 01:27:18,825 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 01:27:18,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87266 states. [2018-07-24 01:27:19,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87266 to 80478. [2018-07-24 01:27:19,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80478 states. [2018-07-24 01:27:19,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80478 states to 80478 states and 93632 transitions. [2018-07-24 01:27:19,591 INFO L78 Accepts]: Start accepts. Automaton has 80478 states and 93632 transitions. Word has length 283 [2018-07-24 01:27:19,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:27:19,591 INFO L471 AbstractCegarLoop]: Abstraction has 80478 states and 93632 transitions. [2018-07-24 01:27:19,591 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 01:27:19,591 INFO L276 IsEmpty]: Start isEmpty. Operand 80478 states and 93632 transitions. [2018-07-24 01:27:19,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2018-07-24 01:27:19,614 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:27:19,614 INFO L353 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 01:27:19,614 INFO L414 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:27:19,615 INFO L82 PathProgramCache]: Analyzing trace with hash -689596404, now seen corresponding path program 1 times [2018-07-24 01:27:19,615 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:27:19,615 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:27:19,616 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:27:19,616 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:27:19,616 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:27:19,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:27:19,823 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 75 proven. 4 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2018-07-24 01:27:19,823 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 01:27:19,823 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 01:27:19,832 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:27:19,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:27:20,012 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 01:27:20,129 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2018-07-24 01:27:20,151 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-24 01:27:20,151 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2018-07-24 01:27:20,152 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 01:27:20,152 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 01:27:20,152 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-07-24 01:27:20,153 INFO L87 Difference]: Start difference. First operand 80478 states and 93632 transitions. Second operand 6 states. [2018-07-24 01:27:27,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:27:27,848 INFO L93 Difference]: Finished difference Result 275940 states and 321014 transitions. [2018-07-24 01:27:27,848 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-07-24 01:27:27,849 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 288 [2018-07-24 01:27:27,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:27:28,116 INFO L225 Difference]: With dead ends: 275940 [2018-07-24 01:27:28,116 INFO L226 Difference]: Without dead ends: 195464 [2018-07-24 01:27:28,191 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2018-07-24 01:27:28,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195464 states. [2018-07-24 01:27:30,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195464 to 190464. [2018-07-24 01:27:30,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190464 states. [2018-07-24 01:27:30,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190464 states to 190464 states and 217436 transitions. [2018-07-24 01:27:30,741 INFO L78 Accepts]: Start accepts. Automaton has 190464 states and 217436 transitions. Word has length 288 [2018-07-24 01:27:30,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:27:30,741 INFO L471 AbstractCegarLoop]: Abstraction has 190464 states and 217436 transitions. [2018-07-24 01:27:30,741 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 01:27:30,741 INFO L276 IsEmpty]: Start isEmpty. Operand 190464 states and 217436 transitions. [2018-07-24 01:27:30,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2018-07-24 01:27:30,761 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:27:30,761 INFO L353 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:27:30,761 INFO L414 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:27:30,762 INFO L82 PathProgramCache]: Analyzing trace with hash 1617324370, now seen corresponding path program 1 times [2018-07-24 01:27:30,762 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:27:30,762 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:27:30,763 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:27:30,763 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:27:30,763 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:27:30,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:27:31,126 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2018-07-24 01:27:31,127 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 01:27:31,127 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 01:27:31,127 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 01:27:31,128 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 01:27:31,128 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 01:27:31,128 INFO L87 Difference]: Start difference. First operand 190464 states and 217436 transitions. Second operand 4 states. [2018-07-24 01:27:36,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:27:36,906 INFO L93 Difference]: Finished difference Result 561618 states and 637025 transitions. [2018-07-24 01:27:36,906 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 01:27:36,906 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 290 [2018-07-24 01:27:36,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:27:37,356 INFO L225 Difference]: With dead ends: 561618 [2018-07-24 01:27:37,356 INFO L226 Difference]: Without dead ends: 371156 [2018-07-24 01:27:37,474 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 01:27:37,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371156 states. [2018-07-24 01:27:41,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371156 to 289601. [2018-07-24 01:27:41,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 289601 states. [2018-07-24 01:27:42,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289601 states to 289601 states and 326221 transitions. [2018-07-24 01:27:42,028 INFO L78 Accepts]: Start accepts. Automaton has 289601 states and 326221 transitions. Word has length 290 [2018-07-24 01:27:42,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:27:42,028 INFO L471 AbstractCegarLoop]: Abstraction has 289601 states and 326221 transitions. [2018-07-24 01:27:42,028 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 01:27:42,028 INFO L276 IsEmpty]: Start isEmpty. Operand 289601 states and 326221 transitions. [2018-07-24 01:27:42,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2018-07-24 01:27:42,053 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:27:42,053 INFO L353 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:27:42,053 INFO L414 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:27:42,054 INFO L82 PathProgramCache]: Analyzing trace with hash 1385551500, now seen corresponding path program 1 times [2018-07-24 01:27:42,054 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:27:42,054 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:27:42,055 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:27:42,055 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:27:42,055 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:27:42,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:27:42,429 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-07-24 01:27:42,430 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 01:27:42,430 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 01:27:42,430 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 01:27:42,431 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 01:27:42,431 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 01:27:42,431 INFO L87 Difference]: Start difference. First operand 289601 states and 326221 transitions. Second operand 3 states. [2018-07-24 01:27:47,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:27:47,594 INFO L93 Difference]: Finished difference Result 573076 states and 645538 transitions. [2018-07-24 01:27:47,595 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 01:27:47,595 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 304 [2018-07-24 01:27:47,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:27:47,956 INFO L225 Difference]: With dead ends: 573076 [2018-07-24 01:27:47,956 INFO L226 Difference]: Without dead ends: 283477 [2018-07-24 01:27:48,081 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 01:27:48,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283477 states. [2018-07-24 01:27:57,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283477 to 272035. [2018-07-24 01:27:57,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272035 states. [2018-07-24 01:27:58,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272035 states to 272035 states and 297923 transitions. [2018-07-24 01:27:58,154 INFO L78 Accepts]: Start accepts. Automaton has 272035 states and 297923 transitions. Word has length 304 [2018-07-24 01:27:58,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:27:58,155 INFO L471 AbstractCegarLoop]: Abstraction has 272035 states and 297923 transitions. [2018-07-24 01:27:58,155 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 01:27:58,155 INFO L276 IsEmpty]: Start isEmpty. Operand 272035 states and 297923 transitions. [2018-07-24 01:27:58,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2018-07-24 01:27:58,177 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:27:58,178 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:27:58,178 INFO L414 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:27:58,178 INFO L82 PathProgramCache]: Analyzing trace with hash 970070550, now seen corresponding path program 1 times [2018-07-24 01:27:58,178 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:27:58,178 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:27:58,179 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:27:58,179 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:27:58,180 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:27:58,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:27:58,620 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 158 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-07-24 01:27:58,620 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 01:27:58,621 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 01:27:58,621 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 01:27:58,622 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 01:27:58,622 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 01:27:58,622 INFO L87 Difference]: Start difference. First operand 272035 states and 297923 transitions. Second operand 4 states. [2018-07-24 01:28:03,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:28:03,497 INFO L93 Difference]: Finished difference Result 530699 states and 580407 transitions. [2018-07-24 01:28:03,497 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 01:28:03,497 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 315 [2018-07-24 01:28:03,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:28:03,809 INFO L225 Difference]: With dead ends: 530699 [2018-07-24 01:28:03,810 INFO L226 Difference]: Without dead ends: 258666 [2018-07-24 01:28:03,956 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 01:28:04,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258666 states. [2018-07-24 01:28:07,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258666 to 221409. [2018-07-24 01:28:07,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221409 states. [2018-07-24 01:28:07,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221409 states to 221409 states and 239393 transitions. [2018-07-24 01:28:07,759 INFO L78 Accepts]: Start accepts. Automaton has 221409 states and 239393 transitions. Word has length 315 [2018-07-24 01:28:07,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:28:07,760 INFO L471 AbstractCegarLoop]: Abstraction has 221409 states and 239393 transitions. [2018-07-24 01:28:07,760 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 01:28:07,760 INFO L276 IsEmpty]: Start isEmpty. Operand 221409 states and 239393 transitions. [2018-07-24 01:28:07,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2018-07-24 01:28:07,776 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:28:07,776 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:28:07,777 INFO L414 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:28:07,777 INFO L82 PathProgramCache]: Analyzing trace with hash -849692513, now seen corresponding path program 1 times [2018-07-24 01:28:07,777 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:28:07,777 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:28:07,778 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:28:07,778 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:28:07,778 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:28:07,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:28:09,110 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 177 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-07-24 01:28:09,110 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 01:28:09,110 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 01:28:09,111 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 01:28:09,111 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 01:28:09,111 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 01:28:09,111 INFO L87 Difference]: Start difference. First operand 221409 states and 239393 transitions. Second operand 4 states. [2018-07-24 01:28:11,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:28:11,906 INFO L93 Difference]: Finished difference Result 427701 states and 463093 transitions. [2018-07-24 01:28:11,907 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 01:28:11,907 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 332 [2018-07-24 01:28:11,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:28:12,194 INFO L225 Difference]: With dead ends: 427701 [2018-07-24 01:28:12,195 INFO L226 Difference]: Without dead ends: 206294 [2018-07-24 01:28:12,327 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 01:28:12,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206294 states. [2018-07-24 01:28:15,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206294 to 204197. [2018-07-24 01:28:15,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204197 states. [2018-07-24 01:28:15,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204197 states to 204197 states and 218808 transitions. [2018-07-24 01:28:15,682 INFO L78 Accepts]: Start accepts. Automaton has 204197 states and 218808 transitions. Word has length 332 [2018-07-24 01:28:15,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:28:15,682 INFO L471 AbstractCegarLoop]: Abstraction has 204197 states and 218808 transitions. [2018-07-24 01:28:15,682 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 01:28:15,682 INFO L276 IsEmpty]: Start isEmpty. Operand 204197 states and 218808 transitions. [2018-07-24 01:28:15,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2018-07-24 01:28:15,698 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:28:15,698 INFO L353 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 01:28:15,698 INFO L414 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:28:15,699 INFO L82 PathProgramCache]: Analyzing trace with hash 301142979, now seen corresponding path program 1 times [2018-07-24 01:28:15,699 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:28:15,699 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:28:15,700 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:28:15,700 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:28:15,700 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:28:16,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:28:16,603 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 228 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-07-24 01:28:16,603 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 01:28:16,604 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 01:28:16,604 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 01:28:16,604 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 01:28:16,604 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 01:28:16,605 INFO L87 Difference]: Start difference. First operand 204197 states and 218808 transitions. Second operand 3 states. [2018-07-24 01:28:18,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:28:18,915 INFO L93 Difference]: Finished difference Result 421510 states and 451819 transitions. [2018-07-24 01:28:18,915 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 01:28:18,915 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 336 [2018-07-24 01:28:18,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:28:19,155 INFO L225 Difference]: With dead ends: 421510 [2018-07-24 01:28:19,155 INFO L226 Difference]: Without dead ends: 217315 [2018-07-24 01:28:19,256 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 01:28:19,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217315 states. [2018-07-24 01:28:22,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217315 to 217303. [2018-07-24 01:28:22,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217303 states. [2018-07-24 01:28:22,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217303 states to 217303 states and 232521 transitions. [2018-07-24 01:28:22,477 INFO L78 Accepts]: Start accepts. Automaton has 217303 states and 232521 transitions. Word has length 336 [2018-07-24 01:28:22,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:28:22,477 INFO L471 AbstractCegarLoop]: Abstraction has 217303 states and 232521 transitions. [2018-07-24 01:28:22,478 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 01:28:22,478 INFO L276 IsEmpty]: Start isEmpty. Operand 217303 states and 232521 transitions. [2018-07-24 01:28:23,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2018-07-24 01:28:23,051 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:28:23,051 INFO L353 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:28:23,051 INFO L414 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:28:23,052 INFO L82 PathProgramCache]: Analyzing trace with hash 1613952301, now seen corresponding path program 1 times [2018-07-24 01:28:23,052 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:28:23,052 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:28:23,053 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:28:23,053 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:28:23,053 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:28:23,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:28:23,315 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 189 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2018-07-24 01:28:23,315 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 01:28:23,316 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 01:28:23,316 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 01:28:23,316 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 01:28:23,317 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 01:28:23,317 INFO L87 Difference]: Start difference. First operand 217303 states and 232521 transitions. Second operand 3 states. [2018-07-24 01:28:25,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:28:25,351 INFO L93 Difference]: Finished difference Result 614048 states and 656179 transitions. [2018-07-24 01:28:25,351 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 01:28:25,351 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 337 [2018-07-24 01:28:25,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:28:25,854 INFO L225 Difference]: With dead ends: 614048 [2018-07-24 01:28:25,854 INFO L226 Difference]: Without dead ends: 396747 [2018-07-24 01:28:26,020 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 01:28:26,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396747 states. [2018-07-24 01:28:36,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396747 to 396745. [2018-07-24 01:28:36,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 396745 states. [2018-07-24 01:28:37,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396745 states to 396745 states and 422490 transitions. [2018-07-24 01:28:37,241 INFO L78 Accepts]: Start accepts. Automaton has 396745 states and 422490 transitions. Word has length 337 [2018-07-24 01:28:37,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:28:37,241 INFO L471 AbstractCegarLoop]: Abstraction has 396745 states and 422490 transitions. [2018-07-24 01:28:37,241 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 01:28:37,241 INFO L276 IsEmpty]: Start isEmpty. Operand 396745 states and 422490 transitions. [2018-07-24 01:28:37,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2018-07-24 01:28:37,267 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:28:37,267 INFO L353 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 01:28:37,268 INFO L414 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:28:37,268 INFO L82 PathProgramCache]: Analyzing trace with hash 542312560, now seen corresponding path program 1 times [2018-07-24 01:28:37,268 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:28:37,268 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:28:37,269 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:28:37,269 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:28:37,269 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:28:37,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:28:39,052 WARN L169 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2018-07-24 01:28:39,454 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 229 proven. 55 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-07-24 01:28:39,455 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 01:28:39,455 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 01:28:39,463 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:28:39,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:28:39,671 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 01:28:39,966 WARN L169 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2018-07-24 01:28:40,474 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 276 proven. 8 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-07-24 01:28:40,496 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-24 01:28:40,497 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 9 [2018-07-24 01:28:40,497 INFO L450 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-07-24 01:28:40,498 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-07-24 01:28:40,498 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-07-24 01:28:40,498 INFO L87 Difference]: Start difference. First operand 396745 states and 422490 transitions. Second operand 10 states. [2018-07-24 01:28:40,905 WARN L169 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-07-24 01:28:52,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:28:52,612 INFO L93 Difference]: Finished difference Result 1307662 states and 1390242 transitions. [2018-07-24 01:28:52,612 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-07-24 01:28:52,612 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 371 [2018-07-24 01:28:52,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:28:55,064 INFO L225 Difference]: With dead ends: 1307662 [2018-07-24 01:28:55,064 INFO L226 Difference]: Without dead ends: 910919 [2018-07-24 01:28:55,354 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 381 GetRequests, 367 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2018-07-24 01:28:55,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 910919 states. [2018-07-24 01:29:06,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 910919 to 859632. [2018-07-24 01:29:06,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 859632 states. [2018-07-24 01:29:23,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 859632 states to 859632 states and 913963 transitions. [2018-07-24 01:29:23,560 INFO L78 Accepts]: Start accepts. Automaton has 859632 states and 913963 transitions. Word has length 371 [2018-07-24 01:29:23,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:29:23,561 INFO L471 AbstractCegarLoop]: Abstraction has 859632 states and 913963 transitions. [2018-07-24 01:29:23,561 INFO L472 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-07-24 01:29:23,561 INFO L276 IsEmpty]: Start isEmpty. Operand 859632 states and 913963 transitions. [2018-07-24 01:29:23,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 389 [2018-07-24 01:29:23,609 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:29:23,609 INFO L353 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 01:29:23,609 INFO L414 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:29:23,610 INFO L82 PathProgramCache]: Analyzing trace with hash -173901831, now seen corresponding path program 1 times [2018-07-24 01:29:23,610 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:29:23,610 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:29:23,610 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:29:23,611 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:29:23,611 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:29:23,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:29:24,028 WARN L169 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-07-24 01:29:25,173 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 240 proven. 63 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-07-24 01:29:25,174 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 01:29:25,174 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 01:29:25,182 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:29:25,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:29:25,401 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 01:29:25,922 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 244 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2018-07-24 01:29:25,966 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-24 01:29:25,966 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 11 [2018-07-24 01:29:25,967 INFO L450 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-07-24 01:29:25,967 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-07-24 01:29:25,967 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2018-07-24 01:29:25,968 INFO L87 Difference]: Start difference. First operand 859632 states and 913963 transitions. Second operand 12 states. [2018-07-24 01:29:46,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:29:46,177 INFO L93 Difference]: Finished difference Result 2157458 states and 2292357 transitions. [2018-07-24 01:29:46,177 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-07-24 01:29:46,177 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 388 [2018-07-24 01:29:46,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:29:48,789 INFO L225 Difference]: With dead ends: 2157458 [2018-07-24 01:29:48,789 INFO L226 Difference]: Without dead ends: 1298032 [2018-07-24 01:29:49,355 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 415 GetRequests, 386 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=280, Invalid=650, Unknown=0, NotChecked=0, Total=930 [2018-07-24 01:29:50,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1298032 states. Received shutdown request... [2018-07-24 01:29:54,880 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-24 01:29:54,886 WARN L202 ceAbstractionStarter]: Timeout [2018-07-24 01:29:54,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 01:29:54 BoogieIcfgContainer [2018-07-24 01:29:54,886 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 01:29:54,887 INFO L168 Benchmark]: Toolchain (without parser) took 202192.20 ms. Allocated memory was 1.5 GB in the beginning and 7.3 GB in the end (delta: 5.7 GB). Free memory was 1.4 GB in the beginning and 3.1 GB in the end (delta: -1.7 GB). Peak memory consumption was 5.4 GB. Max. memory is 7.1 GB. [2018-07-24 01:29:54,888 INFO L168 Benchmark]: CDTParser took 0.26 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 01:29:54,889 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1178.06 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: 95.1 MB). Peak memory consumption was 95.1 MB. Max. memory is 7.1 GB. [2018-07-24 01:29:54,890 INFO L168 Benchmark]: Boogie Procedure Inliner took 158.66 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: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-07-24 01:29:54,890 INFO L168 Benchmark]: Boogie Preprocessor took 409.13 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 818.9 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -951.3 MB). Peak memory consumption was 62.3 MB. Max. memory is 7.1 GB. [2018-07-24 01:29:54,892 INFO L168 Benchmark]: RCFGBuilder took 5798.80 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 278.3 MB). Peak memory consumption was 278.3 MB. Max. memory is 7.1 GB. [2018-07-24 01:29:54,892 INFO L168 Benchmark]: TraceAbstraction took 194641.63 ms. Allocated memory was 2.4 GB in the beginning and 7.3 GB in the end (delta: 4.9 GB). Free memory was 2.0 GB in the beginning and 3.1 GB in the end (delta: -1.1 GB). Peak memory consumption was 5.1 GB. Max. memory is 7.1 GB. [2018-07-24 01:29:54,905 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 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 1178.06 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: 95.1 MB). Peak memory consumption was 95.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 158.66 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: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 409.13 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 818.9 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -951.3 MB). Peak memory consumption was 62.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5798.80 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 278.3 MB). Peak memory consumption was 278.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 194641.63 ms. Allocated memory was 2.4 GB in the beginning and 7.3 GB in the end (delta: 4.9 GB). Free memory was 2.0 GB in the beginning and 3.1 GB in the end (delta: -1.1 GB). Peak memory consumption was 5.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1548]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1548). Cancelled while executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 303 locations, 1 error locations. TIMEOUT Result, 194.5s OverallTime, 19 OverallIterations, 5 TraceHistogramMax, 102.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 5171 SDtfs, 15607 SDslu, 3213 SDs, 0 SdLazy, 27047 SolverSat, 5693 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 51.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1335 GetRequests, 1253 SyntacticMatches, 4 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 286 ImplicationChecksByTransitivity, 6.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=859632occurred in iteration=18, 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: 76.7s AutomataMinimizationTime, 19 MinimizatonAttempts, 198439 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.4s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 7.9s InterpolantComputationTime, 6330 NumberOfCodeBlocks, 6330 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 6307 ConstructedInterpolants, 0 QuantifiedInterpolants, 9613734 SizeOfPredicates, 14 NumberOfNonLiveVariables, 2165 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 23 InterpolantComputations, 18 PerfectInterpolantSequences, 3055/3189 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/Problem03_label23_true-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_01-29-54-920.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem03_label23_true-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-24_01-29-54-920.csv Completed graceful shutdown