java -Xss4m -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem13_label40_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-71425fa [2018-07-22 03:02:48,758 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-22 03:02:48,760 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-22 03:02:48,775 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-22 03:02:48,775 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-22 03:02:48,776 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-22 03:02:48,780 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-22 03:02:48,783 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-22 03:02:48,784 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-22 03:02:48,786 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-22 03:02:48,787 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-22 03:02:48,787 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-22 03:02:48,788 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-22 03:02:48,791 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-22 03:02:48,793 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-22 03:02:48,794 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-22 03:02:48,794 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-22 03:02:48,805 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-22 03:02:48,806 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-22 03:02:48,808 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-22 03:02:48,808 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-22 03:02:48,810 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-22 03:02:48,813 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-07-22 03:02:48,828 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-07-22 03:02:48,853 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-22 03:02:48,853 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-22 03:02:48,854 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-22 03:02:48,854 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-07-22 03:02:48,854 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-07-22 03:02:48,855 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-07-22 03:02:48,855 INFO L133 SettingsManager]: * Use SBE=true [2018-07-22 03:02:48,855 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-22 03:02:48,855 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-22 03:02:48,855 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-22 03:02:48,856 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-22 03:02:48,856 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-22 03:02:48,856 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-22 03:02:48,856 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-22 03:02:48,856 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-22 03:02:48,857 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-22 03:02:48,857 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-22 03:02:48,857 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-22 03:02:48,857 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-22 03:02:48,857 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-22 03:02:48,857 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-22 03:02:48,858 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-07-22 03:02:48,858 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-22 03:02:48,858 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-22 03:02:48,858 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-07-22 03:02:48,858 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-22 03:02:48,858 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-22 03:02:48,859 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-22 03:02:48,859 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-22 03:02:48,912 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-22 03:02:48,929 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-22 03:02:48,934 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-22 03:02:48,935 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-22 03:02:48,936 INFO L276 PluginConnector]: CDTParser initialized [2018-07-22 03:02:48,937 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label40_false-unreach-call.c [2018-07-22 03:02:49,321 INFO L220 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/42a6378a7/ff5fa6c8ce864dbc98e604039521b6bc/FLAGdd76bea4c [2018-07-22 03:02:49,892 INFO L276 CDTParser]: Found 1 translation units. [2018-07-22 03:02:49,893 INFO L158 CDTParser]: Scanning /storage/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label40_false-unreach-call.c [2018-07-22 03:02:49,950 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/42a6378a7/ff5fa6c8ce864dbc98e604039521b6bc/FLAGdd76bea4c [2018-07-22 03:02:49,971 INFO L332 CDTParser]: Successfully deleted /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/42a6378a7/ff5fa6c8ce864dbc98e604039521b6bc [2018-07-22 03:02:49,983 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-22 03:02:49,990 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-22 03:02:49,992 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-22 03:02:49,992 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-22 03:02:50,001 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-22 03:02:50,002 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 03:02:49" (1/1) ... [2018-07-22 03:02:50,005 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50efbc56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:02:50, skipping insertion in model container [2018-07-22 03:02:50,005 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 03:02:49" (1/1) ... [2018-07-22 03:02:50,451 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-22 03:02:51,791 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-22 03:02:51,816 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-22 03:02:52,792 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-22 03:02:53,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:02:53 WrapperNode [2018-07-22 03:02:53,129 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-22 03:02:53,131 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-22 03:02:53,131 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-22 03:02:53,131 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-22 03:02:53,141 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:02:53" (1/1) ... [2018-07-22 03:02:53,262 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:02:53" (1/1) ... [2018-07-22 03:02:53,883 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-22 03:02:53,884 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-22 03:02:53,884 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-22 03:02:53,884 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-22 03:02:53,895 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:02:53" (1/1) ... [2018-07-22 03:02:53,895 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:02:53" (1/1) ... [2018-07-22 03:02:53,987 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:02:53" (1/1) ... [2018-07-22 03:02:53,987 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:02:53" (1/1) ... [2018-07-22 03:02:55,522 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:02:53" (1/1) ... [2018-07-22 03:02:55,578 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:02:53" (1/1) ... [2018-07-22 03:02:55,643 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:02:53" (1/1) ... [2018-07-22 03:02:55,714 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-22 03:02:55,714 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-22 03:02:55,714 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-22 03:02:55,715 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-22 03:02:55,716 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:02:53" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-22 03:02:55,770 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-07-22 03:02:55,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-22 03:02:55,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-22 03:03:07,211 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-22 03:03:07,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 03:03:07 BoogieIcfgContainer [2018-07-22 03:03:07,212 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-22 03:03:07,213 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-22 03:03:07,213 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-22 03:03:07,217 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-22 03:03:07,217 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 03:02:49" (1/3) ... [2018-07-22 03:03:07,218 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1652f1ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 03:03:07, skipping insertion in model container [2018-07-22 03:03:07,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:02:53" (2/3) ... [2018-07-22 03:03:07,218 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1652f1ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 03:03:07, skipping insertion in model container [2018-07-22 03:03:07,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 03:03:07" (3/3) ... [2018-07-22 03:03:07,221 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label40_false-unreach-call.c [2018-07-22 03:03:07,231 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-22 03:03:07,248 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-22 03:03:07,313 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-22 03:03:07,314 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-22 03:03:07,314 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-22 03:03:07,314 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-22 03:03:07,314 INFO L376 AbstractCegarLoop]: Backedges is TWOTRACK [2018-07-22 03:03:07,314 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-22 03:03:07,314 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-22 03:03:07,314 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-22 03:03:07,314 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-22 03:03:07,354 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states. [2018-07-22 03:03:07,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-07-22 03:03:07,361 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 03:03:07,362 INFO L358 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 03:03:07,362 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 03:03:07,365 INFO L82 PathProgramCache]: Analyzing trace with hash 1827210562, now seen corresponding path program 1 times [2018-07-22 03:03:07,367 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 03:03:07,367 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 03:03:07,415 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 03:03:07,415 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 03:03:07,415 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 03:03:07,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 03:03:07,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-22 03:03:07,834 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 03:03:07,835 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-22 03:03:07,837 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 03:03:07,857 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 03:03:07,858 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 03:03:07,860 INFO L87 Difference]: Start difference. First operand 1099 states. Second operand 4 states. [2018-07-22 03:03:21,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 03:03:21,547 INFO L93 Difference]: Finished difference Result 3973 states and 7416 transitions. [2018-07-22 03:03:21,547 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 03:03:21,548 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2018-07-22 03:03:21,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 03:03:21,590 INFO L225 Difference]: With dead ends: 3973 [2018-07-22 03:03:21,591 INFO L226 Difference]: Without dead ends: 2867 [2018-07-22 03:03:21,601 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 03:03:21,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2867 states. [2018-07-22 03:03:21,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2867 to 1938. [2018-07-22 03:03:21,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1938 states. [2018-07-22 03:03:21,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1938 states to 1938 states and 3240 transitions. [2018-07-22 03:03:21,758 INFO L78 Accepts]: Start accepts. Automaton has 1938 states and 3240 transitions. Word has length 29 [2018-07-22 03:03:21,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 03:03:21,759 INFO L471 AbstractCegarLoop]: Abstraction has 1938 states and 3240 transitions. [2018-07-22 03:03:21,759 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 03:03:21,759 INFO L276 IsEmpty]: Start isEmpty. Operand 1938 states and 3240 transitions. [2018-07-22 03:03:21,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2018-07-22 03:03:21,763 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 03:03:21,764 INFO L358 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 03:03:21,766 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 03:03:21,766 INFO L82 PathProgramCache]: Analyzing trace with hash -495686712, now seen corresponding path program 1 times [2018-07-22 03:03:21,767 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 03:03:21,767 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 03:03:21,768 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 03:03:21,768 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 03:03:21,768 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 03:03:21,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 03:03:22,045 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-22 03:03:22,046 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 03:03:22,046 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-22 03:03:22,048 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 03:03:22,049 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 03:03:22,049 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 03:03:22,049 INFO L87 Difference]: Start difference. First operand 1938 states and 3240 transitions. Second operand 4 states. [2018-07-22 03:03:34,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 03:03:34,674 INFO L93 Difference]: Finished difference Result 7101 states and 12101 transitions. [2018-07-22 03:03:34,674 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 03:03:34,674 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 101 [2018-07-22 03:03:34,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 03:03:34,705 INFO L225 Difference]: With dead ends: 7101 [2018-07-22 03:03:34,705 INFO L226 Difference]: Without dead ends: 5165 [2018-07-22 03:03:34,709 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 03:03:34,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5165 states. [2018-07-22 03:03:34,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5165 to 3540. [2018-07-22 03:03:34,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3540 states. [2018-07-22 03:03:34,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3540 states to 3540 states and 5445 transitions. [2018-07-22 03:03:34,813 INFO L78 Accepts]: Start accepts. Automaton has 3540 states and 5445 transitions. Word has length 101 [2018-07-22 03:03:34,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 03:03:34,814 INFO L471 AbstractCegarLoop]: Abstraction has 3540 states and 5445 transitions. [2018-07-22 03:03:34,814 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 03:03:34,814 INFO L276 IsEmpty]: Start isEmpty. Operand 3540 states and 5445 transitions. [2018-07-22 03:03:34,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2018-07-22 03:03:34,819 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 03:03:34,819 INFO L358 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 03:03:34,819 INFO L414 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 03:03:34,820 INFO L82 PathProgramCache]: Analyzing trace with hash -57072693, now seen corresponding path program 1 times [2018-07-22 03:03:34,820 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 03:03:34,820 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 03:03:34,821 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 03:03:34,821 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 03:03:34,821 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 03:03:34,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 03:03:35,163 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-22 03:03:35,163 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 03:03:35,163 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-22 03:03:35,164 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 03:03:35,164 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 03:03:35,164 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 03:03:35,165 INFO L87 Difference]: Start difference. First operand 3540 states and 5445 transitions. Second operand 4 states. [2018-07-22 03:03:45,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 03:03:45,511 INFO L93 Difference]: Finished difference Result 13434 states and 20853 transitions. [2018-07-22 03:03:45,511 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 03:03:45,511 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 115 [2018-07-22 03:03:45,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 03:03:45,564 INFO L225 Difference]: With dead ends: 13434 [2018-07-22 03:03:45,564 INFO L226 Difference]: Without dead ends: 9896 [2018-07-22 03:03:45,571 INFO L578 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 [2018-07-22 03:03:45,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9896 states. [2018-07-22 03:03:45,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9896 to 6701. [2018-07-22 03:03:45,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6701 states. [2018-07-22 03:03:45,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6701 states to 6701 states and 9774 transitions. [2018-07-22 03:03:45,744 INFO L78 Accepts]: Start accepts. Automaton has 6701 states and 9774 transitions. Word has length 115 [2018-07-22 03:03:45,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 03:03:45,745 INFO L471 AbstractCegarLoop]: Abstraction has 6701 states and 9774 transitions. [2018-07-22 03:03:45,745 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 03:03:45,746 INFO L276 IsEmpty]: Start isEmpty. Operand 6701 states and 9774 transitions. [2018-07-22 03:03:45,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2018-07-22 03:03:45,748 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 03:03:45,757 INFO L358 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 03:03:45,757 INFO L414 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 03:03:45,757 INFO L82 PathProgramCache]: Analyzing trace with hash 1623065843, now seen corresponding path program 1 times [2018-07-22 03:03:45,758 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 03:03:45,758 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 03:03:45,759 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 03:03:45,759 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 03:03:45,759 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 03:03:45,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 03:03:46,215 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-22 03:03:46,215 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 03:03:46,215 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-22 03:03:46,216 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 03:03:46,216 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 03:03:46,216 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 03:03:46,217 INFO L87 Difference]: Start difference. First operand 6701 states and 9774 transitions. Second operand 4 states. [2018-07-22 03:03:54,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 03:03:54,418 INFO L93 Difference]: Finished difference Result 26034 states and 38134 transitions. [2018-07-22 03:03:54,418 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 03:03:54,418 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 131 [2018-07-22 03:03:54,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 03:03:54,503 INFO L225 Difference]: With dead ends: 26034 [2018-07-22 03:03:54,503 INFO L226 Difference]: Without dead ends: 19335 [2018-07-22 03:03:54,514 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 03:03:54,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19335 states. [2018-07-22 03:03:54,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19335 to 19314. [2018-07-22 03:03:54,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19314 states. [2018-07-22 03:03:54,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19314 states to 19314 states and 25619 transitions. [2018-07-22 03:03:54,939 INFO L78 Accepts]: Start accepts. Automaton has 19314 states and 25619 transitions. Word has length 131 [2018-07-22 03:03:54,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 03:03:54,940 INFO L471 AbstractCegarLoop]: Abstraction has 19314 states and 25619 transitions. [2018-07-22 03:03:54,940 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 03:03:54,940 INFO L276 IsEmpty]: Start isEmpty. Operand 19314 states and 25619 transitions. [2018-07-22 03:03:54,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2018-07-22 03:03:54,943 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 03:03:54,943 INFO L358 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 03:03:54,943 INFO L414 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 03:03:54,943 INFO L82 PathProgramCache]: Analyzing trace with hash 517549558, now seen corresponding path program 1 times [2018-07-22 03:03:54,944 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 03:03:54,944 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 03:03:54,944 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 03:03:54,945 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 03:03:54,945 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 03:03:54,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 03:03:55,183 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-22 03:03:55,183 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 03:03:55,184 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-22 03:03:55,184 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-22 03:03:55,184 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-22 03:03:55,185 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-22 03:03:55,185 INFO L87 Difference]: Start difference. First operand 19314 states and 25619 transitions. Second operand 5 states. [2018-07-22 03:04:07,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 03:04:07,927 INFO L93 Difference]: Finished difference Result 82207 states and 107769 transitions. [2018-07-22 03:04:07,932 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-22 03:04:07,932 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 155 [2018-07-22 03:04:07,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 03:04:08,060 INFO L225 Difference]: With dead ends: 82207 [2018-07-22 03:04:08,060 INFO L226 Difference]: Without dead ends: 62895 [2018-07-22 03:04:08,087 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-22 03:04:08,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62895 states. [2018-07-22 03:04:09,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62895 to 52461. [2018-07-22 03:04:09,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52461 states. [2018-07-22 03:04:09,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52461 states to 52461 states and 65153 transitions. [2018-07-22 03:04:09,143 INFO L78 Accepts]: Start accepts. Automaton has 52461 states and 65153 transitions. Word has length 155 [2018-07-22 03:04:09,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 03:04:09,144 INFO L471 AbstractCegarLoop]: Abstraction has 52461 states and 65153 transitions. [2018-07-22 03:04:09,144 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-22 03:04:09,144 INFO L276 IsEmpty]: Start isEmpty. Operand 52461 states and 65153 transitions. [2018-07-22 03:04:09,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2018-07-22 03:04:09,148 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 03:04:09,149 INFO L358 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 03:04:09,149 INFO L414 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 03:04:09,149 INFO L82 PathProgramCache]: Analyzing trace with hash -1678520597, now seen corresponding path program 1 times [2018-07-22 03:04:09,149 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 03:04:09,149 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 03:04:09,153 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 03:04:09,153 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 03:04:09,154 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 03:04:09,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 03:04:09,582 WARN L169 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 9 [2018-07-22 03:04:09,659 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-07-22 03:04:09,659 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 03:04:09,660 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-22 03:04:09,660 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-22 03:04:09,660 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-22 03:04:09,660 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-22 03:04:09,660 INFO L87 Difference]: Start difference. First operand 52461 states and 65153 transitions. Second operand 5 states. [2018-07-22 03:04:18,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 03:04:18,814 INFO L93 Difference]: Finished difference Result 116839 states and 145348 transitions. [2018-07-22 03:04:18,814 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-22 03:04:18,814 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 223 [2018-07-22 03:04:18,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 03:04:18,908 INFO L225 Difference]: With dead ends: 116839 [2018-07-22 03:04:18,909 INFO L226 Difference]: Without dead ends: 65167 [2018-07-22 03:04:18,981 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-22 03:04:19,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65167 states. [2018-07-22 03:04:19,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65167 to 64308. [2018-07-22 03:04:19,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64308 states. [2018-07-22 03:04:20,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64308 states to 64308 states and 78980 transitions. [2018-07-22 03:04:20,005 INFO L78 Accepts]: Start accepts. Automaton has 64308 states and 78980 transitions. Word has length 223 [2018-07-22 03:04:20,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 03:04:20,006 INFO L471 AbstractCegarLoop]: Abstraction has 64308 states and 78980 transitions. [2018-07-22 03:04:20,006 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-22 03:04:20,006 INFO L276 IsEmpty]: Start isEmpty. Operand 64308 states and 78980 transitions. [2018-07-22 03:04:20,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2018-07-22 03:04:20,008 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 03:04:20,009 INFO L358 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-22 03:04:20,009 INFO L414 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 03:04:20,009 INFO L82 PathProgramCache]: Analyzing trace with hash -98841961, now seen corresponding path program 1 times [2018-07-22 03:04:20,009 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 03:04:20,009 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 03:04:20,010 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 03:04:20,010 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 03:04:20,010 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 03:04:20,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 03:04:20,354 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 149 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-22 03:04:20,355 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 03:04:20,355 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-22 03:04:20,355 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 03:04:20,355 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 03:04:20,355 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 03:04:20,356 INFO L87 Difference]: Start difference. First operand 64308 states and 78980 transitions. Second operand 4 states. [2018-07-22 03:04:28,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 03:04:28,446 INFO L93 Difference]: Finished difference Result 146769 states and 181643 transitions. [2018-07-22 03:04:28,447 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 03:04:28,447 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 230 [2018-07-22 03:04:28,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 03:04:28,554 INFO L225 Difference]: With dead ends: 146769 [2018-07-22 03:04:28,554 INFO L226 Difference]: Without dead ends: 83251 [2018-07-22 03:04:29,103 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 03:04:29,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83251 states. [2018-07-22 03:04:29,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83251 to 82427. [2018-07-22 03:04:29,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82427 states. [2018-07-22 03:04:29,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82427 states to 82427 states and 97039 transitions. [2018-07-22 03:04:29,774 INFO L78 Accepts]: Start accepts. Automaton has 82427 states and 97039 transitions. Word has length 230 [2018-07-22 03:04:29,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 03:04:29,775 INFO L471 AbstractCegarLoop]: Abstraction has 82427 states and 97039 transitions. [2018-07-22 03:04:29,775 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 03:04:29,775 INFO L276 IsEmpty]: Start isEmpty. Operand 82427 states and 97039 transitions. [2018-07-22 03:04:29,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2018-07-22 03:04:29,786 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 03:04:29,787 INFO L358 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 03:04:29,787 INFO L414 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 03:04:29,787 INFO L82 PathProgramCache]: Analyzing trace with hash 516574673, now seen corresponding path program 1 times [2018-07-22 03:04:29,787 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 03:04:29,787 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 03:04:29,788 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 03:04:29,788 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 03:04:29,788 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 03:04:29,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 03:04:30,066 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2018-07-22 03:04:30,066 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 03:04:30,066 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-22 03:04:30,066 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-22 03:04:30,067 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-22 03:04:30,067 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-22 03:04:30,067 INFO L87 Difference]: Start difference. First operand 82427 states and 97039 transitions. Second operand 3 states. [2018-07-22 03:04:37,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 03:04:37,445 INFO L93 Difference]: Finished difference Result 213687 states and 252889 transitions. [2018-07-22 03:04:37,446 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-22 03:04:37,446 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 261 [2018-07-22 03:04:37,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 03:04:37,565 INFO L225 Difference]: With dead ends: 213687 [2018-07-22 03:04:37,565 INFO L226 Difference]: Without dead ends: 132050 [2018-07-22 03:04:37,606 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-22 03:04:37,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132050 states. [2018-07-22 03:04:39,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132050 to 131260. [2018-07-22 03:04:39,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131260 states. [2018-07-22 03:04:39,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131260 states to 131260 states and 148603 transitions. [2018-07-22 03:04:39,328 INFO L78 Accepts]: Start accepts. Automaton has 131260 states and 148603 transitions. Word has length 261 [2018-07-22 03:04:39,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 03:04:39,328 INFO L471 AbstractCegarLoop]: Abstraction has 131260 states and 148603 transitions. [2018-07-22 03:04:39,328 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-22 03:04:39,328 INFO L276 IsEmpty]: Start isEmpty. Operand 131260 states and 148603 transitions. [2018-07-22 03:04:39,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2018-07-22 03:04:39,337 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 03:04:39,337 INFO L358 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 03:04:39,338 INFO L414 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 03:04:39,338 INFO L82 PathProgramCache]: Analyzing trace with hash 1483644202, now seen corresponding path program 1 times [2018-07-22 03:04:39,338 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 03:04:39,338 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 03:04:39,339 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 03:04:39,339 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 03:04:39,339 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 03:04:39,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 03:04:39,712 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 332 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-07-22 03:04:39,712 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 03:04:39,712 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-22 03:04:39,713 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-22 03:04:39,713 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-22 03:04:39,713 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-22 03:04:39,713 INFO L87 Difference]: Start difference. First operand 131260 states and 148603 transitions. Second operand 5 states. [2018-07-22 03:05:00,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 03:05:00,179 INFO L93 Difference]: Finished difference Result 365253 states and 414972 transitions. [2018-07-22 03:05:00,180 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-22 03:05:00,180 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 320 [2018-07-22 03:05:00,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 03:05:00,455 INFO L225 Difference]: With dead ends: 365253 [2018-07-22 03:05:00,455 INFO L226 Difference]: Without dead ends: 234783 [2018-07-22 03:05:00,508 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-22 03:05:00,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234783 states. [2018-07-22 03:05:02,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234783 to 220395. [2018-07-22 03:05:02,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220395 states. [2018-07-22 03:05:02,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220395 states to 220395 states and 247278 transitions. [2018-07-22 03:05:02,794 INFO L78 Accepts]: Start accepts. Automaton has 220395 states and 247278 transitions. Word has length 320 [2018-07-22 03:05:02,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 03:05:02,795 INFO L471 AbstractCegarLoop]: Abstraction has 220395 states and 247278 transitions. [2018-07-22 03:05:02,795 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-22 03:05:02,795 INFO L276 IsEmpty]: Start isEmpty. Operand 220395 states and 247278 transitions. [2018-07-22 03:05:02,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2018-07-22 03:05:02,801 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 03:05:02,802 INFO L358 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 03:05:02,802 INFO L414 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 03:05:02,802 INFO L82 PathProgramCache]: Analyzing trace with hash -1417221723, now seen corresponding path program 1 times [2018-07-22 03:05:02,802 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 03:05:02,802 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 03:05:02,804 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 03:05:02,804 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 03:05:02,804 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 03:05:02,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 03:05:04,156 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2018-07-22 03:05:04,157 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 03:05:04,157 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-22 03:05:04,157 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-22 03:05:04,157 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-22 03:05:04,158 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-22 03:05:04,158 INFO L87 Difference]: Start difference. First operand 220395 states and 247278 transitions. Second operand 5 states. [2018-07-22 03:05:17,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 03:05:17,952 INFO L93 Difference]: Finished difference Result 512627 states and 573158 transitions. [2018-07-22 03:05:17,952 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-22 03:05:17,952 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 359 [2018-07-22 03:05:17,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 03:05:18,245 INFO L225 Difference]: With dead ends: 512627 [2018-07-22 03:05:18,245 INFO L226 Difference]: Without dead ends: 293022 [2018-07-22 03:05:18,326 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-22 03:05:18,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293022 states. [2018-07-22 03:05:27,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293022 to 289809. [2018-07-22 03:05:27,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 289809 states. [2018-07-22 03:05:28,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289809 states to 289809 states and 318621 transitions. [2018-07-22 03:05:28,024 INFO L78 Accepts]: Start accepts. Automaton has 289809 states and 318621 transitions. Word has length 359 [2018-07-22 03:05:28,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 03:05:28,025 INFO L471 AbstractCegarLoop]: Abstraction has 289809 states and 318621 transitions. [2018-07-22 03:05:28,025 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-22 03:05:28,025 INFO L276 IsEmpty]: Start isEmpty. Operand 289809 states and 318621 transitions. [2018-07-22 03:05:28,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 388 [2018-07-22 03:05:28,035 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 03:05:28,036 INFO L358 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 03:05:28,036 INFO L414 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 03:05:28,036 INFO L82 PathProgramCache]: Analyzing trace with hash 1207637578, now seen corresponding path program 1 times [2018-07-22 03:05:28,036 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 03:05:28,036 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 03:05:28,037 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 03:05:28,037 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 03:05:28,037 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 03:05:28,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 03:05:28,328 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 392 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-07-22 03:05:28,328 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 03:05:28,329 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-22 03:05:28,329 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 03:05:28,329 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 03:05:28,329 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 03:05:28,330 INFO L87 Difference]: Start difference. First operand 289809 states and 318621 transitions. Second operand 4 states. [2018-07-22 03:05:39,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 03:05:39,510 INFO L93 Difference]: Finished difference Result 589856 states and 648374 transitions. [2018-07-22 03:05:39,511 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 03:05:39,511 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 387 [2018-07-22 03:05:39,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 03:05:39,803 INFO L225 Difference]: With dead ends: 589856 [2018-07-22 03:05:39,804 INFO L226 Difference]: Without dead ends: 274778 [2018-07-22 03:05:39,901 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 03:05:40,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274778 states. [2018-07-22 03:05:42,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274778 to 257425. [2018-07-22 03:05:42,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 257425 states. [2018-07-22 03:05:42,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257425 states to 257425 states and 280891 transitions. [2018-07-22 03:05:42,875 INFO L78 Accepts]: Start accepts. Automaton has 257425 states and 280891 transitions. Word has length 387 [2018-07-22 03:05:42,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 03:05:42,875 INFO L471 AbstractCegarLoop]: Abstraction has 257425 states and 280891 transitions. [2018-07-22 03:05:42,875 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 03:05:42,875 INFO L276 IsEmpty]: Start isEmpty. Operand 257425 states and 280891 transitions. [2018-07-22 03:05:42,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2018-07-22 03:05:42,880 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 03:05:42,880 INFO L358 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 03:05:42,880 INFO L414 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 03:05:42,881 INFO L82 PathProgramCache]: Analyzing trace with hash -1977854908, now seen corresponding path program 1 times [2018-07-22 03:05:42,881 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 03:05:42,881 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 03:05:42,882 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 03:05:42,882 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 03:05:42,882 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 03:05:42,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 03:05:44,162 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 266 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2018-07-22 03:05:44,163 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 03:05:44,163 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-22 03:05:44,163 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 03:05:44,163 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 03:05:44,163 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 03:05:44,164 INFO L87 Difference]: Start difference. First operand 257425 states and 280891 transitions. Second operand 4 states. [2018-07-22 03:05:57,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 03:05:57,833 INFO L93 Difference]: Finished difference Result 558218 states and 610773 transitions. [2018-07-22 03:05:57,834 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 03:05:57,834 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 426 [2018-07-22 03:05:57,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 03:05:58,153 INFO L225 Difference]: With dead ends: 558218 [2018-07-22 03:05:58,154 INFO L226 Difference]: Without dead ends: 299209 [2018-07-22 03:05:58,234 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 03:05:58,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299209 states. [2018-07-22 03:06:01,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299209 to 289716. [2018-07-22 03:06:01,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 289716 states. [2018-07-22 03:06:01,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289716 states to 289716 states and 310741 transitions. [2018-07-22 03:06:01,328 INFO L78 Accepts]: Start accepts. Automaton has 289716 states and 310741 transitions. Word has length 426 [2018-07-22 03:06:01,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 03:06:01,329 INFO L471 AbstractCegarLoop]: Abstraction has 289716 states and 310741 transitions. [2018-07-22 03:06:01,329 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 03:06:01,329 INFO L276 IsEmpty]: Start isEmpty. Operand 289716 states and 310741 transitions. [2018-07-22 03:06:01,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 441 [2018-07-22 03:06:01,332 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 03:06:01,333 INFO L358 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2018-07-22 03:06:01,333 INFO L414 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 03:06:01,333 INFO L82 PathProgramCache]: Analyzing trace with hash -1469173965, now seen corresponding path program 1 times [2018-07-22 03:06:01,333 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 03:06:01,333 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 03:06:01,334 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 03:06:01,334 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 03:06:01,335 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 03:06:01,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 03:06:02,656 INFO L134 CoverageAnalysis]: Checked inductivity of 655 backedges. 380 proven. 0 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2018-07-22 03:06:02,657 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 03:06:02,657 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-22 03:06:02,658 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 03:06:02,658 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 03:06:02,658 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 03:06:02,658 INFO L87 Difference]: Start difference. First operand 289716 states and 310741 transitions. Second operand 4 states. [2018-07-22 03:06:12,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 03:06:12,941 INFO L93 Difference]: Finished difference Result 573876 states and 616078 transitions. [2018-07-22 03:06:12,941 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 03:06:12,941 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 440 [2018-07-22 03:06:12,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 03:06:13,237 INFO L225 Difference]: With dead ends: 573876 [2018-07-22 03:06:13,237 INFO L226 Difference]: Without dead ends: 284950 [2018-07-22 03:06:13,328 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 03:06:13,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284950 states. [2018-07-22 03:06:16,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284950 to 280216. [2018-07-22 03:06:16,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280216 states. [2018-07-22 03:06:16,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280216 states to 280216 states and 293265 transitions. [2018-07-22 03:06:16,683 INFO L78 Accepts]: Start accepts. Automaton has 280216 states and 293265 transitions. Word has length 440 [2018-07-22 03:06:16,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 03:06:16,684 INFO L471 AbstractCegarLoop]: Abstraction has 280216 states and 293265 transitions. [2018-07-22 03:06:16,684 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 03:06:16,684 INFO L276 IsEmpty]: Start isEmpty. Operand 280216 states and 293265 transitions. [2018-07-22 03:06:16,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 520 [2018-07-22 03:06:16,691 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 03:06:16,692 INFO L358 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 03:06:16,692 INFO L414 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 03:06:16,692 INFO L82 PathProgramCache]: Analyzing trace with hash -230494872, now seen corresponding path program 1 times [2018-07-22 03:06:16,692 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 03:06:16,692 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 03:06:16,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 03:06:16,693 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 03:06:16,694 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 03:06:16,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 03:06:17,226 INFO L134 CoverageAnalysis]: Checked inductivity of 901 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 767 trivial. 0 not checked. [2018-07-22 03:06:17,226 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 03:06:17,226 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-22 03:06:17,227 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-22 03:06:17,227 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-22 03:06:17,227 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-22 03:06:17,228 INFO L87 Difference]: Start difference. First operand 280216 states and 293265 transitions. Second operand 3 states. [2018-07-22 03:06:22,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 03:06:22,556 INFO L93 Difference]: Finished difference Result 555681 states and 581549 transitions. [2018-07-22 03:06:22,556 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-22 03:06:22,556 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 519 [2018-07-22 03:06:22,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. Received shutdown request... [2018-07-22 03:06:28,072 INFO L225 Difference]: With dead ends: 555681 [2018-07-22 03:06:28,072 INFO L226 Difference]: Without dead ends: 276254 [2018-07-22 03:06:28,156 INFO L578 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 [2018-07-22 03:06:28,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276254 states. [2018-07-22 03:06:28,298 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-22 03:06:28,302 WARN L202 ceAbstractionStarter]: Timeout [2018-07-22 03:06:28,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.07 03:06:28 BoogieIcfgContainer [2018-07-22 03:06:28,302 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-22 03:06:28,303 INFO L168 Benchmark]: Toolchain (without parser) took 218319.24 ms. Allocated memory was 307.2 MB in the beginning and 3.3 GB in the end (delta: 2.9 GB). Free memory was 236.2 MB in the beginning and 2.2 GB in the end (delta: -2.0 GB). Peak memory consumption was 2.5 GB. Max. memory is 5.3 GB. [2018-07-22 03:06:28,304 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 307.2 MB. Free memory is still 272.7 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-07-22 03:06:28,304 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3138.94 ms. Allocated memory was 307.2 MB in the beginning and 396.9 MB in the end (delta: 89.7 MB). Free memory was 236.2 MB in the beginning and 203.8 MB in the end (delta: 32.4 MB). Peak memory consumption was 122.1 MB. Max. memory is 5.3 GB. [2018-07-22 03:06:28,305 INFO L168 Benchmark]: Boogie Procedure Inliner took 752.59 ms. Allocated memory is still 396.9 MB. Free memory was 203.8 MB in the beginning and 194.8 MB in the end (delta: 9.0 MB). Peak memory consumption was 115.0 MB. Max. memory is 5.3 GB. [2018-07-22 03:06:28,305 INFO L168 Benchmark]: Boogie Preprocessor took 1830.05 ms. Allocated memory was 396.9 MB in the beginning and 688.9 MB in the end (delta: 292.0 MB). Free memory was 194.8 MB in the beginning and 495.1 MB in the end (delta: -300.3 MB). Peak memory consumption was 76.3 MB. Max. memory is 5.3 GB. [2018-07-22 03:06:28,306 INFO L168 Benchmark]: RCFGBuilder took 11497.81 ms. Allocated memory was 688.9 MB in the beginning and 966.8 MB in the end (delta: 277.9 MB). Free memory was 495.1 MB in the beginning and 573.5 MB in the end (delta: -78.3 MB). Peak memory consumption was 325.6 MB. Max. memory is 5.3 GB. [2018-07-22 03:06:28,307 INFO L168 Benchmark]: TraceAbstraction took 201089.66 ms. Allocated memory was 966.8 MB in the beginning and 3.3 GB in the end (delta: 2.3 GB). Free memory was 565.6 MB in the beginning and 2.2 GB in the end (delta: -1.7 GB). Peak memory consumption was 2.2 GB. Max. memory is 5.3 GB. [2018-07-22 03:06:28,311 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 307.2 MB. Free memory is still 272.7 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 3138.94 ms. Allocated memory was 307.2 MB in the beginning and 396.9 MB in the end (delta: 89.7 MB). Free memory was 236.2 MB in the beginning and 203.8 MB in the end (delta: 32.4 MB). Peak memory consumption was 122.1 MB. Max. memory is 5.3 GB. * Boogie Procedure Inliner took 752.59 ms. Allocated memory is still 396.9 MB. Free memory was 203.8 MB in the beginning and 194.8 MB in the end (delta: 9.0 MB). Peak memory consumption was 115.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 1830.05 ms. Allocated memory was 396.9 MB in the beginning and 688.9 MB in the end (delta: 292.0 MB). Free memory was 194.8 MB in the beginning and 495.1 MB in the end (delta: -300.3 MB). Peak memory consumption was 76.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 11497.81 ms. Allocated memory was 688.9 MB in the beginning and 966.8 MB in the end (delta: 277.9 MB). Free memory was 495.1 MB in the beginning and 573.5 MB in the end (delta: -78.3 MB). Peak memory consumption was 325.6 MB. Max. memory is 5.3 GB. * TraceAbstraction took 201089.66 ms. Allocated memory was 966.8 MB in the beginning and 3.3 GB in the end (delta: 2.3 GB). Free memory was 565.6 MB in the beginning and 2.2 GB in the end (delta: -1.7 GB). Peak memory consumption was 2.2 GB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 96]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 96). Cancelled while executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1099 locations, 1 error locations. TIMEOUT Result, 200.9s OverallTime, 14 OverallIterations, 6 TraceHistogramMax, 165.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 11196 SDtfs, 31348 SDslu, 3827 SDs, 0 SdLazy, 68268 SolverSat, 15337 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 122.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 55 GetRequests, 18 SyntacticMatches, 7 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=289809occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 26.8s AutomataMinimizationTime, 14 MinimizatonAttempts, 67858 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 4.2s InterpolantComputationTime, 3696 NumberOfCodeBlocks, 3696 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 3682 ConstructedInterpolants, 0 QuantifiedInterpolants, 3404085 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 3597/3597 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem13_label40_false-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-22_03-06-28-324.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem13_label40_false-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-22_03-06-28-324.csv Completed graceful shutdown