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/Problem13_label30_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 00:38:04,852 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 00:38:04,854 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 00:38:04,865 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 00:38:04,865 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 00:38:04,866 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 00:38:04,868 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 00:38:04,870 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 00:38:04,871 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 00:38:04,872 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 00:38:04,873 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 00:38:04,873 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 00:38:04,874 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 00:38:04,875 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 00:38:04,876 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 00:38:04,877 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 00:38:04,878 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 00:38:04,880 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 00:38:04,882 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 00:38:04,883 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 00:38:04,884 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 00:38:04,886 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 00:38:04,889 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-07-24 00:38:04,906 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 00:38:04,935 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 00:38:04,935 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 00:38:04,936 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 00:38:04,939 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-07-24 00:38:04,940 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-07-24 00:38:04,940 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-07-24 00:38:04,940 INFO L133 SettingsManager]: * Use SBE=true [2018-07-24 00:38:04,941 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 00:38:04,941 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 00:38:04,941 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 00:38:04,941 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 00:38:04,941 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 00:38:04,942 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 00:38:04,942 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 00:38:04,942 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 00:38:04,942 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 00:38:04,942 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 00:38:04,943 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 00:38:04,943 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 00:38:04,943 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 00:38:04,944 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 00:38:04,945 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 00:38:04,945 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 00:38:04,945 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-07-24 00:38:04,945 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 00:38:04,946 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 00:38:04,946 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 00:38:04,946 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 00:38:05,022 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 00:38:05,039 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 00:38:05,045 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 00:38:05,047 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 00:38:05,048 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 00:38:05,048 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label30_false-unreach-call.c [2018-07-24 00:38:05,389 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d0dece6a/aa54763953344c94907caccf014a0a04/FLAG69ab25a64 [2018-07-24 00:38:05,878 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 00:38:05,879 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label30_false-unreach-call.c [2018-07-24 00:38:05,924 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d0dece6a/aa54763953344c94907caccf014a0a04/FLAG69ab25a64 [2018-07-24 00:38:05,947 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d0dece6a/aa54763953344c94907caccf014a0a04 [2018-07-24 00:38:05,962 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 00:38:05,964 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 00:38:05,965 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 00:38:05,965 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 00:38:05,973 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 00:38:05,974 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 12:38:05" (1/1) ... [2018-07-24 00:38:05,977 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52923332 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:38:05, skipping insertion in model container [2018-07-24 00:38:05,977 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 12:38:05" (1/1) ... [2018-07-24 00:38:06,344 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 00:38:07,562 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 00:38:07,584 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 00:38:08,627 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 00:38:09,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:38:09 WrapperNode [2018-07-24 00:38:09,006 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 00:38:09,007 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 00:38:09,007 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 00:38:09,008 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 00:38:09,019 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:38:09" (1/1) ... [2018-07-24 00:38:09,131 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:38:09" (1/1) ... [2018-07-24 00:38:09,830 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 00:38:09,830 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 00:38:09,830 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 00:38:09,831 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 00:38:11,061 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:38:09" (1/1) ... [2018-07-24 00:38:11,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:38:09" (1/1) ... [2018-07-24 00:38:11,147 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:38:09" (1/1) ... [2018-07-24 00:38:11,147 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:38:09" (1/1) ... [2018-07-24 00:38:11,294 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:38:09" (1/1) ... [2018-07-24 00:38:11,332 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:38:09" (1/1) ... [2018-07-24 00:38:11,392 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:38:09" (1/1) ... [2018-07-24 00:38:11,452 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 00:38:11,453 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 00:38:11,453 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 00:38:11,453 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 00:38:11,454 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:38:09" (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 00:38:11,526 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-07-24 00:38:11,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 00:38:11,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 00:38:22,397 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 00:38:22,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 12:38:22 BoogieIcfgContainer [2018-07-24 00:38:22,398 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 00:38:22,399 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 00:38:22,399 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 00:38:22,403 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 00:38:22,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 12:38:05" (1/3) ... [2018-07-24 00:38:22,404 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ffac678 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 12:38:22, skipping insertion in model container [2018-07-24 00:38:22,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:38:09" (2/3) ... [2018-07-24 00:38:22,404 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ffac678 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 12:38:22, skipping insertion in model container [2018-07-24 00:38:22,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 12:38:22" (3/3) ... [2018-07-24 00:38:22,407 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label30_false-unreach-call.c [2018-07-24 00:38:22,417 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 00:38:22,427 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 00:38:22,505 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 00:38:22,506 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 00:38:22,508 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 00:38:22,508 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 00:38:22,508 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 00:38:22,509 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 00:38:22,509 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 00:38:22,509 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 00:38:22,509 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 00:38:22,551 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states. [2018-07-24 00:38:22,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-07-24 00:38:22,558 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:38:22,560 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] [2018-07-24 00:38:22,560 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:38:22,565 INFO L82 PathProgramCache]: Analyzing trace with hash 183950178, now seen corresponding path program 1 times [2018-07-24 00:38:22,567 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:38:22,567 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:38:22,623 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:38:22,623 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:38:22,624 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:38:22,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:38:22,952 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 00:38:22,955 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:38:22,955 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 00:38:22,960 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 00:38:22,976 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 00:38:22,977 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 00:38:22,980 INFO L87 Difference]: Start difference. First operand 1099 states. Second operand 4 states. [2018-07-24 00:38:36,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:38:36,677 INFO L93 Difference]: Finished difference Result 3896 states and 7286 transitions. [2018-07-24 00:38:36,679 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 00:38:36,680 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2018-07-24 00:38:36,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:38:36,727 INFO L225 Difference]: With dead ends: 3896 [2018-07-24 00:38:36,728 INFO L226 Difference]: Without dead ends: 2790 [2018-07-24 00:38:36,739 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 00:38:36,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2790 states. [2018-07-24 00:38:36,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2790 to 1945. [2018-07-24 00:38:36,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1945 states. [2018-07-24 00:38:36,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1945 states to 1945 states and 3412 transitions. [2018-07-24 00:38:36,891 INFO L78 Accepts]: Start accepts. Automaton has 1945 states and 3412 transitions. Word has length 20 [2018-07-24 00:38:36,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:38:36,892 INFO L471 AbstractCegarLoop]: Abstraction has 1945 states and 3412 transitions. [2018-07-24 00:38:36,892 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 00:38:36,892 INFO L276 IsEmpty]: Start isEmpty. Operand 1945 states and 3412 transitions. [2018-07-24 00:38:36,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2018-07-24 00:38:36,896 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:38:36,896 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 00:38:36,896 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:38:36,896 INFO L82 PathProgramCache]: Analyzing trace with hash -1170489782, now seen corresponding path program 1 times [2018-07-24 00:38:36,897 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:38:36,897 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:38:36,898 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:38:36,898 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:38:36,898 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:38:36,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:38:37,217 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 00:38:37,218 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:38:37,218 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 00:38:37,221 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 00:38:37,221 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 00:38:37,221 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 00:38:37,222 INFO L87 Difference]: Start difference. First operand 1945 states and 3412 transitions. Second operand 4 states. [2018-07-24 00:38:49,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:38:49,224 INFO L93 Difference]: Finished difference Result 5486 states and 9768 transitions. [2018-07-24 00:38:49,229 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 00:38:49,230 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 86 [2018-07-24 00:38:49,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:38:49,251 INFO L225 Difference]: With dead ends: 5486 [2018-07-24 00:38:49,251 INFO L226 Difference]: Without dead ends: 3543 [2018-07-24 00:38:49,256 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 00:38:49,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3543 states. [2018-07-24 00:38:49,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3543 to 3542. [2018-07-24 00:38:49,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3542 states. [2018-07-24 00:38:49,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3542 states to 3542 states and 5575 transitions. [2018-07-24 00:38:49,336 INFO L78 Accepts]: Start accepts. Automaton has 3542 states and 5575 transitions. Word has length 86 [2018-07-24 00:38:49,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:38:49,337 INFO L471 AbstractCegarLoop]: Abstraction has 3542 states and 5575 transitions. [2018-07-24 00:38:49,337 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 00:38:49,337 INFO L276 IsEmpty]: Start isEmpty. Operand 3542 states and 5575 transitions. [2018-07-24 00:38:49,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-07-24 00:38:49,342 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:38:49,342 INFO L353 BasicCegarLoop]: trace histogram [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 00:38:49,342 INFO L414 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:38:49,343 INFO L82 PathProgramCache]: Analyzing trace with hash 2090144101, now seen corresponding path program 1 times [2018-07-24 00:38:49,343 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:38:49,343 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:38:49,346 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:38:49,347 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:38:49,347 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:38:49,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:38:49,500 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 00:38:49,500 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:38:49,500 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 00:38:49,501 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 00:38:49,501 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 00:38:49,501 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 00:38:49,501 INFO L87 Difference]: Start difference. First operand 3542 states and 5575 transitions. Second operand 4 states. [2018-07-24 00:39:01,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:39:01,362 INFO L93 Difference]: Finished difference Result 13432 states and 21347 transitions. [2018-07-24 00:39:01,363 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 00:39:01,363 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 88 [2018-07-24 00:39:01,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:39:01,417 INFO L225 Difference]: With dead ends: 13432 [2018-07-24 00:39:01,417 INFO L226 Difference]: Without dead ends: 9892 [2018-07-24 00:39:01,425 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 00:39:01,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9892 states. [2018-07-24 00:39:01,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9892 to 9885. [2018-07-24 00:39:01,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9885 states. [2018-07-24 00:39:01,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9885 states to 9885 states and 14067 transitions. [2018-07-24 00:39:01,645 INFO L78 Accepts]: Start accepts. Automaton has 9885 states and 14067 transitions. Word has length 88 [2018-07-24 00:39:01,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:39:01,646 INFO L471 AbstractCegarLoop]: Abstraction has 9885 states and 14067 transitions. [2018-07-24 00:39:01,646 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 00:39:01,646 INFO L276 IsEmpty]: Start isEmpty. Operand 9885 states and 14067 transitions. [2018-07-24 00:39:01,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2018-07-24 00:39:01,650 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:39:01,651 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-24 00:39:01,651 INFO L414 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:39:01,651 INFO L82 PathProgramCache]: Analyzing trace with hash -1373846569, now seen corresponding path program 1 times [2018-07-24 00:39:01,651 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:39:01,651 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:39:01,653 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:39:01,653 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:39:01,653 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:39:01,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:39:02,215 WARN L169 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 9 [2018-07-24 00:39:02,403 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 00:39:02,404 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:39:02,404 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-24 00:39:02,404 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 00:39:02,405 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 00:39:02,405 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-07-24 00:39:02,405 INFO L87 Difference]: Start difference. First operand 9885 states and 14067 transitions. Second operand 6 states. [2018-07-24 00:39:24,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:39:24,078 INFO L93 Difference]: Finished difference Result 39564 states and 55406 transitions. [2018-07-24 00:39:24,078 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-24 00:39:24,079 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 132 [2018-07-24 00:39:24,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:39:24,167 INFO L225 Difference]: With dead ends: 39564 [2018-07-24 00:39:24,167 INFO L226 Difference]: Without dead ends: 29681 [2018-07-24 00:39:24,184 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-07-24 00:39:24,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29681 states. [2018-07-24 00:39:24,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29681 to 28836. [2018-07-24 00:39:24,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28836 states. [2018-07-24 00:39:24,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28836 states to 28836 states and 35053 transitions. [2018-07-24 00:39:24,611 INFO L78 Accepts]: Start accepts. Automaton has 28836 states and 35053 transitions. Word has length 132 [2018-07-24 00:39:24,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:39:24,612 INFO L471 AbstractCegarLoop]: Abstraction has 28836 states and 35053 transitions. [2018-07-24 00:39:24,612 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 00:39:24,612 INFO L276 IsEmpty]: Start isEmpty. Operand 28836 states and 35053 transitions. [2018-07-24 00:39:24,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2018-07-24 00:39:24,614 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:39:24,614 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 00:39:24,615 INFO L414 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:39:24,615 INFO L82 PathProgramCache]: Analyzing trace with hash 1040417677, now seen corresponding path program 1 times [2018-07-24 00:39:24,615 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:39:24,615 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:39:24,616 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:39:24,616 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:39:24,616 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:39:24,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:39:24,760 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 00:39:24,761 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:39:24,761 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 00:39:24,761 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 00:39:24,762 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 00:39:24,762 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 00:39:24,762 INFO L87 Difference]: Start difference. First operand 28836 states and 35053 transitions. Second operand 3 states. [2018-07-24 00:39:33,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:39:33,258 INFO L93 Difference]: Finished difference Result 78935 states and 96926 transitions. [2018-07-24 00:39:33,259 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 00:39:33,259 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 146 [2018-07-24 00:39:33,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:39:33,354 INFO L225 Difference]: With dead ends: 78935 [2018-07-24 00:39:33,354 INFO L226 Difference]: Without dead ends: 46136 [2018-07-24 00:39:33,396 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 00:39:33,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46136 states. [2018-07-24 00:39:33,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46136 to 42193. [2018-07-24 00:39:33,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42193 states. [2018-07-24 00:39:33,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42193 states to 42193 states and 50360 transitions. [2018-07-24 00:39:33,910 INFO L78 Accepts]: Start accepts. Automaton has 42193 states and 50360 transitions. Word has length 146 [2018-07-24 00:39:33,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:39:33,910 INFO L471 AbstractCegarLoop]: Abstraction has 42193 states and 50360 transitions. [2018-07-24 00:39:33,910 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 00:39:33,911 INFO L276 IsEmpty]: Start isEmpty. Operand 42193 states and 50360 transitions. [2018-07-24 00:39:33,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2018-07-24 00:39:33,914 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:39:33,914 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-24 00:39:33,914 INFO L414 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:39:33,915 INFO L82 PathProgramCache]: Analyzing trace with hash -1425261115, now seen corresponding path program 1 times [2018-07-24 00:39:33,915 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:39:33,915 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:39:33,916 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:39:33,917 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:39:33,918 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:39:33,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:39:34,238 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2018-07-24 00:39:34,238 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:39:34,238 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 00:39:34,239 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 00:39:34,239 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 00:39:34,239 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 00:39:34,239 INFO L87 Difference]: Start difference. First operand 42193 states and 50360 transitions. Second operand 4 states. [2018-07-24 00:39:46,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:39:46,066 INFO L93 Difference]: Finished difference Result 131697 states and 159988 transitions. [2018-07-24 00:39:46,081 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 00:39:46,082 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 234 [2018-07-24 00:39:46,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:39:46,262 INFO L225 Difference]: With dead ends: 131697 [2018-07-24 00:39:46,262 INFO L226 Difference]: Without dead ends: 87923 [2018-07-24 00:39:46,329 INFO L573 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 [2018-07-24 00:39:46,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87923 states. [2018-07-24 00:39:47,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87923 to 87103. [2018-07-24 00:39:47,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87103 states. [2018-07-24 00:39:47,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87103 states to 87103 states and 101121 transitions. [2018-07-24 00:39:47,348 INFO L78 Accepts]: Start accepts. Automaton has 87103 states and 101121 transitions. Word has length 234 [2018-07-24 00:39:47,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:39:47,348 INFO L471 AbstractCegarLoop]: Abstraction has 87103 states and 101121 transitions. [2018-07-24 00:39:47,349 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 00:39:47,349 INFO L276 IsEmpty]: Start isEmpty. Operand 87103 states and 101121 transitions. [2018-07-24 00:39:47,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 420 [2018-07-24 00:39:47,367 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:39:47,368 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-07-24 00:39:47,368 INFO L414 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:39:47,368 INFO L82 PathProgramCache]: Analyzing trace with hash 1802118366, now seen corresponding path program 1 times [2018-07-24 00:39:47,369 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:39:47,369 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:39:47,369 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:39:47,370 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:39:47,370 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:39:47,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:39:47,735 WARN L169 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-07-24 00:39:48,234 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 279 proven. 110 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-07-24 00:39:48,234 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 00:39:48,234 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 00:39:48,243 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:39:48,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:39:48,424 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 00:39:48,588 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 275 proven. 0 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (2)] Forcibly destroying the process [2018-07-24 00:39:49,008 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-24 00:39:49,008 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2018-07-24 00:39:49,009 INFO L450 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-24 00:39:49,010 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-24 00:39:49,010 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-07-24 00:39:49,010 INFO L87 Difference]: Start difference. First operand 87103 states and 101121 transitions. Second operand 8 states. [2018-07-24 00:40:25,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:40:25,578 INFO L93 Difference]: Finished difference Result 223129 states and 258174 transitions. [2018-07-24 00:40:25,578 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-07-24 00:40:25,578 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 419 [2018-07-24 00:40:25,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:40:25,782 INFO L225 Difference]: With dead ends: 223129 [2018-07-24 00:40:25,783 INFO L226 Difference]: Without dead ends: 124970 [2018-07-24 00:40:25,845 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 436 GetRequests, 424 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2018-07-24 00:40:25,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124970 states. [2018-07-24 00:40:27,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124970 to 120227. [2018-07-24 00:40:27,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120227 states. [2018-07-24 00:40:27,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120227 states to 120227 states and 130993 transitions. [2018-07-24 00:40:27,887 INFO L78 Accepts]: Start accepts. Automaton has 120227 states and 130993 transitions. Word has length 419 [2018-07-24 00:40:27,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:40:27,887 INFO L471 AbstractCegarLoop]: Abstraction has 120227 states and 130993 transitions. [2018-07-24 00:40:27,888 INFO L472 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-24 00:40:27,888 INFO L276 IsEmpty]: Start isEmpty. Operand 120227 states and 130993 transitions. [2018-07-24 00:40:27,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 551 [2018-07-24 00:40:27,918 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:40:27,919 INFO L353 BasicCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:40:27,919 INFO L414 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:40:27,919 INFO L82 PathProgramCache]: Analyzing trace with hash -2137744631, now seen corresponding path program 1 times [2018-07-24 00:40:27,919 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:40:27,919 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:40:27,921 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:40:27,921 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:40:27,922 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:40:28,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:40:28,438 INFO L134 CoverageAnalysis]: Checked inductivity of 662 backedges. 387 proven. 0 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2018-07-24 00:40:28,438 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:40:28,438 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 00:40:28,439 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 00:40:28,439 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 00:40:28,440 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 00:40:28,440 INFO L87 Difference]: Start difference. First operand 120227 states and 130993 transitions. Second operand 4 states. [2018-07-24 00:40:46,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:40:46,183 INFO L93 Difference]: Finished difference Result 284709 states and 310950 transitions. [2018-07-24 00:40:46,184 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 00:40:46,184 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 550 [2018-07-24 00:40:46,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:40:46,413 INFO L225 Difference]: With dead ends: 284709 [2018-07-24 00:40:46,413 INFO L226 Difference]: Without dead ends: 165272 [2018-07-24 00:40:46,482 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 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 00:40:46,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165272 states. [2018-07-24 00:40:47,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165272 to 158064. [2018-07-24 00:40:47,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158064 states. [2018-07-24 00:40:47,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158064 states to 158064 states and 172674 transitions. [2018-07-24 00:40:47,997 INFO L78 Accepts]: Start accepts. Automaton has 158064 states and 172674 transitions. Word has length 550 [2018-07-24 00:40:47,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:40:47,998 INFO L471 AbstractCegarLoop]: Abstraction has 158064 states and 172674 transitions. [2018-07-24 00:40:47,998 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 00:40:47,998 INFO L276 IsEmpty]: Start isEmpty. Operand 158064 states and 172674 transitions. [2018-07-24 00:40:48,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 638 [2018-07-24 00:40:48,036 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:40:48,037 INFO L353 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:40:48,037 INFO L414 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:40:48,037 INFO L82 PathProgramCache]: Analyzing trace with hash -513540969, now seen corresponding path program 1 times [2018-07-24 00:40:48,037 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:40:48,037 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:40:48,038 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:40:48,038 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:40:48,038 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:40:48,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:40:48,717 WARN L169 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-07-24 00:40:49,093 WARN L169 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 26 [2018-07-24 00:40:49,677 INFO L134 CoverageAnalysis]: Checked inductivity of 567 backedges. 137 proven. 12 refuted. 0 times theorem prover too weak. 418 trivial. 0 not checked. [2018-07-24 00:40:49,678 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 00:40:49,678 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 00:40:50,436 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:40:50,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:40:50,666 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 00:40:51,012 INFO L134 CoverageAnalysis]: Checked inductivity of 567 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2018-07-24 00:40:51,034 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-24 00:40:51,034 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2018-07-24 00:40:51,035 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 00:40:51,035 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 00:40:51,035 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-07-24 00:40:51,036 INFO L87 Difference]: Start difference. First operand 158064 states and 172674 transitions. Second operand 6 states. [2018-07-24 00:41:05,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:41:05,828 INFO L93 Difference]: Finished difference Result 315327 states and 344544 transitions. [2018-07-24 00:41:05,829 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-24 00:41:05,829 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 637 [2018-07-24 00:41:05,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:41:06,031 INFO L225 Difference]: With dead ends: 315327 [2018-07-24 00:41:06,031 INFO L226 Difference]: Without dead ends: 158053 [2018-07-24 00:41:06,111 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 644 GetRequests, 637 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2018-07-24 00:41:06,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158053 states. [2018-07-24 00:41:07,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158053 to 157260. [2018-07-24 00:41:07,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157260 states. [2018-07-24 00:41:07,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157260 states to 157260 states and 167604 transitions. [2018-07-24 00:41:07,605 INFO L78 Accepts]: Start accepts. Automaton has 157260 states and 167604 transitions. Word has length 637 [2018-07-24 00:41:07,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:41:07,606 INFO L471 AbstractCegarLoop]: Abstraction has 157260 states and 167604 transitions. [2018-07-24 00:41:07,606 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 00:41:07,606 INFO L276 IsEmpty]: Start isEmpty. Operand 157260 states and 167604 transitions. [2018-07-24 00:41:07,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 641 [2018-07-24 00:41:07,625 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:41:07,626 INFO L353 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 00:41:07,626 INFO L414 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:41:07,626 INFO L82 PathProgramCache]: Analyzing trace with hash 1390489177, now seen corresponding path program 1 times [2018-07-24 00:41:07,626 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:41:07,626 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:41:07,627 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:41:07,627 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:41:07,627 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:41:07,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:41:08,406 INFO L134 CoverageAnalysis]: Checked inductivity of 1048 backedges. 698 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2018-07-24 00:41:08,407 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:41:08,407 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 00:41:08,408 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 00:41:08,408 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 00:41:08,408 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-24 00:41:08,408 INFO L87 Difference]: Start difference. First operand 157260 states and 167604 transitions. Second operand 5 states. [2018-07-24 00:41:31,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:41:31,315 INFO L93 Difference]: Finished difference Result 418014 states and 446027 transitions. [2018-07-24 00:41:31,316 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-24 00:41:31,316 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 640 [2018-07-24 00:41:31,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:41:31,620 INFO L225 Difference]: With dead ends: 418014 [2018-07-24 00:41:31,621 INFO L226 Difference]: Without dead ends: 261544 [2018-07-24 00:41:31,709 INFO L573 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 [2018-07-24 00:41:31,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261544 states. [2018-07-24 00:41:38,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261544 to 241646. [2018-07-24 00:41:38,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241646 states. [2018-07-24 00:41:39,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241646 states to 241646 states and 256330 transitions. [2018-07-24 00:41:39,196 INFO L78 Accepts]: Start accepts. Automaton has 241646 states and 256330 transitions. Word has length 640 [2018-07-24 00:41:39,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:41:39,196 INFO L471 AbstractCegarLoop]: Abstraction has 241646 states and 256330 transitions. [2018-07-24 00:41:39,196 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 00:41:39,197 INFO L276 IsEmpty]: Start isEmpty. Operand 241646 states and 256330 transitions. [2018-07-24 00:41:39,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 724 [2018-07-24 00:41:39,229 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:41:39,230 INFO L353 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:41:39,230 INFO L414 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:41:39,230 INFO L82 PathProgramCache]: Analyzing trace with hash 392396452, now seen corresponding path program 1 times [2018-07-24 00:41:39,230 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:41:39,230 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:41:39,231 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:41:39,231 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:41:39,232 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:41:39,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:41:40,090 INFO L134 CoverageAnalysis]: Checked inductivity of 1474 backedges. 921 proven. 0 refuted. 0 times theorem prover too weak. 553 trivial. 0 not checked. [2018-07-24 00:41:40,091 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:41:40,091 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 00:41:40,092 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 00:41:40,093 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 00:41:40,093 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 00:41:40,093 INFO L87 Difference]: Start difference. First operand 241646 states and 256330 transitions. Second operand 4 states. [2018-07-24 00:41:52,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:41:52,917 INFO L93 Difference]: Finished difference Result 517996 states and 549961 transitions. [2018-07-24 00:41:52,917 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 00:41:52,917 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 723 [2018-07-24 00:41:52,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:41:53,237 INFO L225 Difference]: With dead ends: 517996 [2018-07-24 00:41:53,237 INFO L226 Difference]: Without dead ends: 277140 [2018-07-24 00:41:53,369 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 00:41:53,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277140 states. [2018-07-24 00:41:56,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277140 to 273157. [2018-07-24 00:41:56,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 273157 states. [2018-07-24 00:41:56,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273157 states to 273157 states and 286151 transitions. [2018-07-24 00:41:56,704 INFO L78 Accepts]: Start accepts. Automaton has 273157 states and 286151 transitions. Word has length 723 [2018-07-24 00:41:56,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:41:56,705 INFO L471 AbstractCegarLoop]: Abstraction has 273157 states and 286151 transitions. [2018-07-24 00:41:56,705 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 00:41:56,705 INFO L276 IsEmpty]: Start isEmpty. Operand 273157 states and 286151 transitions. [2018-07-24 00:41:56,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 754 [2018-07-24 00:41:56,735 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:41:56,736 INFO L353 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:41:56,736 INFO L414 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:41:56,737 INFO L82 PathProgramCache]: Analyzing trace with hash -1478297286, now seen corresponding path program 1 times [2018-07-24 00:41:56,737 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:41:56,737 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:41:56,738 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:41:56,738 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:41:56,738 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:41:56,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:41:57,649 WARN L169 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 7 [2018-07-24 00:41:59,334 INFO L134 CoverageAnalysis]: Checked inductivity of 1543 backedges. 859 proven. 287 refuted. 0 times theorem prover too weak. 397 trivial. 0 not checked. [2018-07-24 00:41:59,334 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 00:41:59,334 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 00:41:59,342 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Received shutdown request... [2018-07-24 00:41:59,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:41:59,596 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 00:41:59,623 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-07-24 00:41:59,824 WARN L512 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 00:41:59,824 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-24 00:41:59,829 WARN L202 ceAbstractionStarter]: Timeout [2018-07-24 00:41:59,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 12:41:59 BoogieIcfgContainer [2018-07-24 00:41:59,830 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 00:41:59,831 INFO L168 Benchmark]: Toolchain (without parser) took 233868.07 ms. Allocated memory was 1.5 GB in the beginning and 4.0 GB in the end (delta: 2.5 GB). Free memory was 1.4 GB in the beginning and 1.6 GB in the end (delta: -247.8 MB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB. [2018-07-24 00:41:59,832 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-24 00:41:59,833 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3041.50 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 339.3 MB). Peak memory consumption was 339.3 MB. Max. memory is 7.1 GB. [2018-07-24 00:41:59,833 INFO L168 Benchmark]: Boogie Procedure Inliner took 822.73 ms. Allocated memory was 1.5 GB in the beginning and 1.8 GB in the end (delta: 288.4 MB). Free memory was 1.0 GB in the beginning and 1.6 GB in the end (delta: -559.1 MB). Peak memory consumption was 204.7 MB. Max. memory is 7.1 GB. [2018-07-24 00:41:59,834 INFO L168 Benchmark]: Boogie Preprocessor took 1622.00 ms. Allocated memory was 1.8 GB in the beginning and 2.4 GB in the end (delta: 634.4 MB). Free memory was 1.6 GB in the beginning and 2.2 GB in the end (delta: -597.2 MB). Peak memory consumption was 125.3 MB. Max. memory is 7.1 GB. [2018-07-24 00:41:59,836 INFO L168 Benchmark]: RCFGBuilder took 10946.02 ms. Allocated memory was 2.4 GB in the beginning and 2.9 GB in the end (delta: 487.1 MB). Free memory was 2.2 GB in the beginning and 2.7 GB in the end (delta: -477.8 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. [2018-07-24 00:41:59,837 INFO L168 Benchmark]: TraceAbstraction took 217430.70 ms. Allocated memory was 2.9 GB in the beginning and 4.0 GB in the end (delta: 1.1 GB). Free memory was 2.7 GB in the beginning and 1.6 GB in the end (delta: 1.0 GB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. [2018-07-24 00:41:59,857 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 3041.50 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 339.3 MB). Peak memory consumption was 339.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 822.73 ms. Allocated memory was 1.5 GB in the beginning and 1.8 GB in the end (delta: 288.4 MB). Free memory was 1.0 GB in the beginning and 1.6 GB in the end (delta: -559.1 MB). Peak memory consumption was 204.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1622.00 ms. Allocated memory was 1.8 GB in the beginning and 2.4 GB in the end (delta: 634.4 MB). Free memory was 1.6 GB in the beginning and 2.2 GB in the end (delta: -597.2 MB). Peak memory consumption was 125.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 10946.02 ms. Allocated memory was 2.4 GB in the beginning and 2.9 GB in the end (delta: 487.1 MB). Free memory was 2.2 GB in the beginning and 2.7 GB in the end (delta: -477.8 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. * TraceAbstraction took 217430.70 ms. Allocated memory was 2.9 GB in the beginning and 4.0 GB in the end (delta: 1.1 GB). Free memory was 2.7 GB in the beginning and 1.6 GB in the end (delta: 1.0 GB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 69]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 69). Cancelled while BasicCegarLoop was analyzing trace of length 754 with TraceHistMax 7, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 5 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1099 locations, 1 error locations. TIMEOUT Result, 217.3s OverallTime, 12 OverallIterations, 7 TraceHistogramMax, 186.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 8285 SDtfs, 34950 SDslu, 4161 SDs, 0 SdLazy, 80953 SolverSat, 14665 SolverUnsat, 6 SolverUnknown, 0 SolverNotchecked, 152.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1117 GetRequests, 1074 SyntacticMatches, 6 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=273157occurred in iteration=11, 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: 18.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 43086 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 4.8s InterpolantComputationTime, 4731 NumberOfCodeBlocks, 4731 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 4718 ConstructedInterpolants, 0 QuantifiedInterpolants, 7517256 SizeOfPredicates, 1 NumberOfNonLiveVariables, 1338 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 13 InterpolantComputations, 11 PerfectInterpolantSequences, 5209/5331 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/Problem13_label30_false-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_00-41-59-881.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem13_label30_false-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-24_00-41-59-881.csv Completed graceful shutdown