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/Problem17_label18_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-71425fa [2018-07-22 14:13:14,697 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-22 14:13:14,699 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-22 14:13:14,712 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-22 14:13:14,712 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-22 14:13:14,713 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-22 14:13:14,714 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-22 14:13:14,719 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-22 14:13:14,720 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-22 14:13:14,722 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-22 14:13:14,723 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-22 14:13:14,724 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-22 14:13:14,724 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-22 14:13:14,725 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-22 14:13:14,729 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-22 14:13:14,730 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-22 14:13:14,730 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-22 14:13:14,744 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-22 14:13:14,746 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-22 14:13:14,747 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-22 14:13:14,748 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-22 14:13:14,749 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-22 14:13:14,756 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-22 14:13:14,756 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-22 14:13:14,756 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-22 14:13:14,757 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-22 14:13:14,758 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-22 14:13:14,759 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-22 14:13:14,759 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-22 14:13:14,764 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-22 14:13:14,764 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-22 14:13:14,765 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-07-22 14:13:14,769 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 14:13:14,795 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-22 14:13:14,795 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-22 14:13:14,796 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-22 14:13:14,796 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-07-22 14:13:14,797 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-07-22 14:13:14,797 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-07-22 14:13:14,797 INFO L133 SettingsManager]: * Use SBE=true [2018-07-22 14:13:14,797 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-22 14:13:14,798 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-22 14:13:14,799 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-22 14:13:14,799 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-22 14:13:14,799 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-22 14:13:14,799 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-22 14:13:14,799 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-22 14:13:14,800 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-22 14:13:14,800 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-22 14:13:14,800 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-22 14:13:14,800 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-22 14:13:14,800 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-22 14:13:14,801 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-22 14:13:14,801 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-22 14:13:14,801 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-07-22 14:13:14,801 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-22 14:13:14,801 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-22 14:13:14,802 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-07-22 14:13:14,803 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-22 14:13:14,803 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-22 14:13:14,803 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-22 14:13:14,803 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-22 14:13:14,851 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-22 14:13:14,864 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-22 14:13:14,870 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-22 14:13:14,872 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-22 14:13:14,872 INFO L276 PluginConnector]: CDTParser initialized [2018-07-22 14:13:14,873 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label18_true-unreach-call.c [2018-07-22 14:13:15,272 INFO L220 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/18a16fcd8/53a64f6faa894d40a338cfadd18e8df7/FLAG476e324ce [2018-07-22 14:13:15,703 INFO L276 CDTParser]: Found 1 translation units. [2018-07-22 14:13:15,704 INFO L158 CDTParser]: Scanning /storage/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label18_true-unreach-call.c [2018-07-22 14:13:15,738 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/18a16fcd8/53a64f6faa894d40a338cfadd18e8df7/FLAG476e324ce [2018-07-22 14:13:15,770 INFO L332 CDTParser]: Successfully deleted /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/18a16fcd8/53a64f6faa894d40a338cfadd18e8df7 [2018-07-22 14:13:15,783 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-22 14:13:15,790 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-22 14:13:15,793 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-22 14:13:15,793 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-22 14:13:15,800 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-22 14:13:15,801 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 02:13:15" (1/1) ... [2018-07-22 14:13:15,804 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1da47078 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:13:15, skipping insertion in model container [2018-07-22 14:13:15,804 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 02:13:15" (1/1) ... [2018-07-22 14:13:16,074 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-22 14:13:16,959 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-22 14:13:16,978 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-22 14:13:17,500 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-22 14:13:17,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:13:17 WrapperNode [2018-07-22 14:13:17,693 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-22 14:13:17,694 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-22 14:13:17,694 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-22 14:13:17,694 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-22 14:13:17,705 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:13:17" (1/1) ... [2018-07-22 14:13:17,844 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:13:17" (1/1) ... [2018-07-22 14:13:18,097 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-22 14:13:18,098 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-22 14:13:18,098 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-22 14:13:18,098 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-22 14:13:18,109 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:13:17" (1/1) ... [2018-07-22 14:13:18,109 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:13:17" (1/1) ... [2018-07-22 14:13:18,136 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:13:17" (1/1) ... [2018-07-22 14:13:18,136 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:13:17" (1/1) ... [2018-07-22 14:13:18,269 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:13:17" (1/1) ... [2018-07-22 14:13:19,149 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:13:17" (1/1) ... [2018-07-22 14:13:19,194 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:13:17" (1/1) ... [2018-07-22 14:13:19,246 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-22 14:13:19,246 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-22 14:13:19,247 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-22 14:13:19,248 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-22 14:13:19,249 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:13:17" (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 14:13:19,320 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-07-22 14:13:19,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-22 14:13:19,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-22 14:13:32,398 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-22 14:13:32,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:13:32 BoogieIcfgContainer [2018-07-22 14:13:32,399 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-22 14:13:32,400 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-22 14:13:32,400 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-22 14:13:32,403 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-22 14:13:32,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 02:13:15" (1/3) ... [2018-07-22 14:13:32,404 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a9d7bfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 02:13:32, skipping insertion in model container [2018-07-22 14:13:32,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:13:17" (2/3) ... [2018-07-22 14:13:32,405 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a9d7bfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 02:13:32, skipping insertion in model container [2018-07-22 14:13:32,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:13:32" (3/3) ... [2018-07-22 14:13:32,408 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label18_true-unreach-call.c [2018-07-22 14:13:32,418 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-22 14:13:32,428 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-22 14:13:32,487 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-22 14:13:32,488 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-22 14:13:32,488 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-22 14:13:32,488 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-22 14:13:32,488 INFO L376 AbstractCegarLoop]: Backedges is TWOTRACK [2018-07-22 14:13:32,488 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-22 14:13:32,489 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-22 14:13:32,489 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-22 14:13:32,489 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-22 14:13:32,524 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states. [2018-07-22 14:13:32,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-07-22 14:13:32,537 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 14:13:32,538 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, 1, 1, 1, 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 14:13:32,538 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 14:13:32,543 INFO L82 PathProgramCache]: Analyzing trace with hash 1860758514, now seen corresponding path program 1 times [2018-07-22 14:13:32,545 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 14:13:32,547 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 14:13:32,592 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:13:32,592 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:13:32,592 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:13:32,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:13:33,059 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 14:13:33,062 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 14:13:33,062 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-22 14:13:33,065 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 14:13:33,080 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 14:13:33,081 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 14:13:33,083 INFO L87 Difference]: Start difference. First operand 591 states. Second operand 4 states. [2018-07-22 14:13:42,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 14:13:42,909 INFO L93 Difference]: Finished difference Result 2102 states and 3914 transitions. [2018-07-22 14:13:42,910 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 14:13:42,911 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 56 [2018-07-22 14:13:42,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 14:13:42,943 INFO L225 Difference]: With dead ends: 2102 [2018-07-22 14:13:42,943 INFO L226 Difference]: Without dead ends: 1504 [2018-07-22 14:13:42,950 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 14:13:42,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1504 states. [2018-07-22 14:13:43,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1504 to 1491. [2018-07-22 14:13:43,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1491 states. [2018-07-22 14:13:43,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1491 states to 1491 states and 2416 transitions. [2018-07-22 14:13:43,132 INFO L78 Accepts]: Start accepts. Automaton has 1491 states and 2416 transitions. Word has length 56 [2018-07-22 14:13:43,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 14:13:43,133 INFO L471 AbstractCegarLoop]: Abstraction has 1491 states and 2416 transitions. [2018-07-22 14:13:43,133 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 14:13:43,134 INFO L276 IsEmpty]: Start isEmpty. Operand 1491 states and 2416 transitions. [2018-07-22 14:13:43,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2018-07-22 14:13:43,140 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 14:13:43,140 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, 2, 2, 2, 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 14:13:43,141 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 14:13:43,141 INFO L82 PathProgramCache]: Analyzing trace with hash -756310166, now seen corresponding path program 1 times [2018-07-22 14:13:43,141 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 14:13:43,141 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 14:13:43,142 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:13:43,143 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:13:43,143 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:13:43,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:13:43,491 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-22 14:13:43,491 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 14:13:43,491 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-22 14:13:43,494 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 14:13:43,494 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 14:13:43,495 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 14:13:43,495 INFO L87 Difference]: Start difference. First operand 1491 states and 2416 transitions. Second operand 4 states. [2018-07-22 14:13:53,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 14:13:53,497 INFO L93 Difference]: Finished difference Result 4268 states and 6993 transitions. [2018-07-22 14:13:53,534 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-22 14:13:53,534 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 124 [2018-07-22 14:13:53,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 14:13:53,549 INFO L225 Difference]: With dead ends: 4268 [2018-07-22 14:13:53,549 INFO L226 Difference]: Without dead ends: 2779 [2018-07-22 14:13:53,552 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 14:13:53,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2779 states. [2018-07-22 14:13:53,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2779 to 2779. [2018-07-22 14:13:53,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2779 states. [2018-07-22 14:13:53,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2779 states to 2779 states and 3841 transitions. [2018-07-22 14:13:53,635 INFO L78 Accepts]: Start accepts. Automaton has 2779 states and 3841 transitions. Word has length 124 [2018-07-22 14:13:53,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 14:13:53,635 INFO L471 AbstractCegarLoop]: Abstraction has 2779 states and 3841 transitions. [2018-07-22 14:13:53,635 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 14:13:53,636 INFO L276 IsEmpty]: Start isEmpty. Operand 2779 states and 3841 transitions. [2018-07-22 14:13:53,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2018-07-22 14:13:53,640 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 14:13:53,640 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 14:13:53,640 INFO L414 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 14:13:53,641 INFO L82 PathProgramCache]: Analyzing trace with hash 1891415903, now seen corresponding path program 1 times [2018-07-22 14:13:53,641 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 14:13:53,641 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 14:13:53,644 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:13:53,644 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:13:53,644 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 14:13:53,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:13:53,884 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-22 14:13:53,884 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-22 14:13:53,885 INFO L219 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/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 [2018-07-22 14:13:53,893 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 14:13:53,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 14:13:53,986 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-22 14:15:31,253 WARN L169 SmtUtils]: Spent 1.61 m on a formula simplification. DAG size of input: 500 DAG size of output: 142 [2018-07-22 14:15:32,319 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 34 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-22 14:15:32,340 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-22 14:15:32,340 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2018-07-22 14:15:32,341 INFO L450 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-22 14:15:32,341 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-22 14:15:32,341 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-07-22 14:15:32,341 INFO L87 Difference]: Start difference. First operand 2779 states and 3841 transitions. Second operand 8 states. [2018-07-22 14:15:32,577 WARN L169 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-07-22 14:16:21,866 WARN L169 SmtUtils]: Spent 48.34 s on a formula simplification that was a NOOP. DAG size: 147 [2018-07-22 14:17:16,504 WARN L169 SmtUtils]: Spent 48.24 s on a formula simplification that was a NOOP. DAG size: 154 Received shutdown request... [2018-07-22 14:17:43,531 WARN L177 SmtUtils]: Removed 8 from assertion stack [2018-07-22 14:17:43,532 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-07-22 14:17:43,532 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-22 14:17:43,538 WARN L202 ceAbstractionStarter]: Timeout [2018-07-22 14:17:43,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.07 02:17:43 BoogieIcfgContainer [2018-07-22 14:17:43,538 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-22 14:17:43,539 INFO L168 Benchmark]: Toolchain (without parser) took 267755.58 ms. Allocated memory was 305.7 MB in the beginning and 879.2 MB in the end (delta: 573.6 MB). Free memory was 242.1 MB in the beginning and 669.7 MB in the end (delta: -427.7 MB). Peak memory consumption was 145.9 MB. Max. memory is 5.3 GB. [2018-07-22 14:17:43,541 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 305.7 MB. Free memory is still 270.1 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-07-22 14:17:43,542 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1901.07 ms. Allocated memory was 305.7 MB in the beginning and 336.1 MB in the end (delta: 30.4 MB). Free memory was 242.1 MB in the beginning and 168.3 MB in the end (delta: 73.8 MB). Peak memory consumption was 104.2 MB. Max. memory is 5.3 GB. [2018-07-22 14:17:43,542 INFO L168 Benchmark]: Boogie Procedure Inliner took 403.58 ms. Allocated memory was 336.1 MB in the beginning and 400.6 MB in the end (delta: 64.5 MB). Free memory was 168.3 MB in the beginning and 269.1 MB in the end (delta: -100.8 MB). Peak memory consumption was 24.7 MB. Max. memory is 5.3 GB. [2018-07-22 14:17:43,543 INFO L168 Benchmark]: Boogie Preprocessor took 1148.08 ms. Allocated memory was 400.6 MB in the beginning and 611.8 MB in the end (delta: 211.3 MB). Free memory was 269.1 MB in the beginning and 508.3 MB in the end (delta: -239.2 MB). Peak memory consumption was 71.8 MB. Max. memory is 5.3 GB. [2018-07-22 14:17:43,544 INFO L168 Benchmark]: RCFGBuilder took 13152.67 ms. Allocated memory was 611.8 MB in the beginning and 721.4 MB in the end (delta: 109.6 MB). Free memory was 508.3 MB in the beginning and 493.5 MB in the end (delta: 14.8 MB). Peak memory consumption was 208.4 MB. Max. memory is 5.3 GB. [2018-07-22 14:17:43,544 INFO L168 Benchmark]: TraceAbstraction took 251138.63 ms. Allocated memory was 721.4 MB in the beginning and 879.2 MB in the end (delta: 157.8 MB). Free memory was 493.5 MB in the beginning and 669.7 MB in the end (delta: -176.2 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-07-22 14:17:43,550 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 305.7 MB. Free memory is still 270.1 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 1901.07 ms. Allocated memory was 305.7 MB in the beginning and 336.1 MB in the end (delta: 30.4 MB). Free memory was 242.1 MB in the beginning and 168.3 MB in the end (delta: 73.8 MB). Peak memory consumption was 104.2 MB. Max. memory is 5.3 GB. * Boogie Procedure Inliner took 403.58 ms. Allocated memory was 336.1 MB in the beginning and 400.6 MB in the end (delta: 64.5 MB). Free memory was 168.3 MB in the beginning and 269.1 MB in the end (delta: -100.8 MB). Peak memory consumption was 24.7 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 1148.08 ms. Allocated memory was 400.6 MB in the beginning and 611.8 MB in the end (delta: 211.3 MB). Free memory was 269.1 MB in the beginning and 508.3 MB in the end (delta: -239.2 MB). Peak memory consumption was 71.8 MB. Max. memory is 5.3 GB. * RCFGBuilder took 13152.67 ms. Allocated memory was 611.8 MB in the beginning and 721.4 MB in the end (delta: 109.6 MB). Free memory was 508.3 MB in the beginning and 493.5 MB in the end (delta: 14.8 MB). Peak memory consumption was 208.4 MB. Max. memory is 5.3 GB. * TraceAbstraction took 251138.63 ms. Allocated memory was 721.4 MB in the beginning and 879.2 MB in the end (delta: 157.8 MB). Free memory was 493.5 MB in the beginning and 669.7 MB in the end (delta: -176.2 MB). There was no memory consumed. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 173]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 173). Cancelled while BasicCegarLoop was constructing difference of abstraction (2779states) and interpolant automaton (currently 13 states, 8 states before enhancement), while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 147. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 591 locations, 1 error locations. TIMEOUT Result, 251.0s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 151.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1186 SDtfs, 2970 SDslu, 717 SDs, 0 SdLazy, 7572 SolverSat, 1741 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 25.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 143 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 194.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2779occurred in iteration=2, 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: 0.2s AutomataMinimizationTime, 2 MinimizatonAttempts, 13 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 99.0s InterpolantComputationTime, 434 NumberOfCodeBlocks, 434 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 430 ConstructedInterpolants, 35 QuantifiedInterpolants, 1946464 SizeOfPredicates, 5 NumberOfNonLiveVariables, 189 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 87/159 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/Problem17_label18_true-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-22_14-17-43-570.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem17_label18_true-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-22_14-17-43-570.csv Completed graceful shutdown