java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem16_label57_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-27 14:51:18,623 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 14:51:18,625 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 14:51:18,642 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 14:51:18,644 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 14:51:18,645 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 14:51:18,646 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 14:51:18,648 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 14:51:18,650 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 14:51:18,651 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 14:51:18,652 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 14:51:18,652 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 14:51:18,653 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 14:51:18,654 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 14:51:18,655 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 14:51:18,656 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 14:51:18,657 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 14:51:18,659 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 14:51:18,661 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 14:51:18,665 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 14:51:18,667 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 14:51:18,671 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 14:51:18,676 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 14:51:18,676 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 14:51:18,676 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 14:51:18,678 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 14:51:18,680 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 14:51:18,681 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 14:51:18,681 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 14:51:18,682 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 14:51:18,682 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 14:51:18,688 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 14:51:18,690 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 14:51:18,690 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 14:51:18,691 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 14:51:18,694 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 14:51:18,694 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT.epf [2018-10-27 14:51:18,727 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 14:51:18,727 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 14:51:18,728 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 14:51:18,729 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 14:51:18,730 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 14:51:18,730 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 14:51:18,731 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 14:51:18,731 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-27 14:51:18,731 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 14:51:18,731 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-27 14:51:18,731 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 14:51:18,732 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 14:51:18,733 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 14:51:18,733 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 14:51:18,733 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 14:51:18,734 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 14:51:18,735 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 14:51:18,736 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 14:51:18,736 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 14:51:18,736 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 14:51:18,736 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 14:51:18,737 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 14:51:18,737 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 14:51:18,737 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 14:51:18,737 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 14:51:18,738 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 14:51:18,738 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 14:51:18,738 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 14:51:18,738 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 14:51:18,738 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 14:51:18,739 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 14:51:18,739 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 14:51:18,739 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-27 14:51:18,739 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-27 14:51:18,796 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 14:51:18,814 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 14:51:18,818 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 14:51:18,819 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 14:51:18,819 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 14:51:18,820 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label57_true-unreach-call.c [2018-10-27 14:51:18,885 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/c28d27ed8/322941ba50ec4987bc3872d5bfa05017/FLAGe97c030d4 [2018-10-27 14:51:19,603 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 14:51:19,604 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label57_true-unreach-call.c [2018-10-27 14:51:19,625 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/c28d27ed8/322941ba50ec4987bc3872d5bfa05017/FLAGe97c030d4 [2018-10-27 14:51:19,644 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/c28d27ed8/322941ba50ec4987bc3872d5bfa05017 [2018-10-27 14:51:19,658 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 14:51:19,660 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 14:51:19,661 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 14:51:19,662 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 14:51:19,668 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 14:51:19,669 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 02:51:19" (1/1) ... [2018-10-27 14:51:19,673 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24c59344 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:51:19, skipping insertion in model container [2018-10-27 14:51:19,673 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 02:51:19" (1/1) ... [2018-10-27 14:51:19,686 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 14:51:19,791 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 14:51:20,690 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 14:51:20,695 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 14:51:20,918 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 14:51:20,940 INFO L193 MainTranslator]: Completed translation [2018-10-27 14:51:20,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:51:20 WrapperNode [2018-10-27 14:51:20,941 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 14:51:20,942 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 14:51:20,942 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 14:51:20,942 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 14:51:20,951 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:51:20" (1/1) ... [2018-10-27 14:51:20,999 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:51:20" (1/1) ... [2018-10-27 14:51:21,294 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 14:51:21,295 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 14:51:21,295 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 14:51:21,295 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 14:51:21,307 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:51:20" (1/1) ... [2018-10-27 14:51:21,308 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:51:20" (1/1) ... [2018-10-27 14:51:21,317 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:51:20" (1/1) ... [2018-10-27 14:51:21,318 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:51:20" (1/1) ... [2018-10-27 14:51:21,376 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:51:20" (1/1) ... [2018-10-27 14:51:21,404 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:51:20" (1/1) ... [2018-10-27 14:51:21,423 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:51:20" (1/1) ... [2018-10-27 14:51:21,439 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 14:51:21,440 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 14:51:21,440 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 14:51:21,441 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 14:51:21,442 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:51:20" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-27 14:51:21,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 14:51:21,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 14:51:21,516 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-27 14:51:21,517 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-27 14:51:21,517 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-27 14:51:21,517 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-27 14:51:21,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 14:51:21,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 14:51:21,518 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 14:51:21,518 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 14:51:29,144 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 14:51:29,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 02:51:29 BoogieIcfgContainer [2018-10-27 14:51:29,146 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 14:51:29,147 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 14:51:29,148 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 14:51:29,151 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 14:51:29,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 02:51:19" (1/3) ... [2018-10-27 14:51:29,152 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35d3d8e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 02:51:29, skipping insertion in model container [2018-10-27 14:51:29,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:51:20" (2/3) ... [2018-10-27 14:51:29,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35d3d8e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 02:51:29, skipping insertion in model container [2018-10-27 14:51:29,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 02:51:29" (3/3) ... [2018-10-27 14:51:29,156 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label57_true-unreach-call.c [2018-10-27 14:51:29,166 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 14:51:29,176 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 14:51:29,196 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 14:51:29,247 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 14:51:29,247 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 14:51:29,247 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 14:51:29,247 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 14:51:29,248 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 14:51:29,248 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 14:51:29,248 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 14:51:29,248 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 14:51:29,300 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-10-27 14:51:29,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-10-27 14:51:29,315 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 14:51:29,317 INFO L375 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] [2018-10-27 14:51:29,320 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 14:51:29,327 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 14:51:29,328 INFO L82 PathProgramCache]: Analyzing trace with hash -768030333, now seen corresponding path program 1 times [2018-10-27 14:51:29,330 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 14:51:29,381 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 14:51:29,382 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 14:51:29,382 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 14:51:29,382 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 14:51:29,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 14:51:29,749 WARN L179 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 14:51:29,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 14:51:29,780 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 14:51:29,781 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-27 14:51:29,781 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 14:51:29,787 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 14:51:29,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 14:51:29,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 14:51:29,806 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 3 states. [2018-10-27 14:51:35,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 14:51:35,190 INFO L93 Difference]: Finished difference Result 1156 states and 2144 transitions. [2018-10-27 14:51:35,191 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 14:51:35,192 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-10-27 14:51:35,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 14:51:35,223 INFO L225 Difference]: With dead ends: 1156 [2018-10-27 14:51:35,223 INFO L226 Difference]: Without dead ends: 744 [2018-10-27 14:51:35,235 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 14:51:35,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2018-10-27 14:51:35,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 744. [2018-10-27 14:51:35,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-10-27 14:51:35,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1353 transitions. [2018-10-27 14:51:35,347 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1353 transitions. Word has length 47 [2018-10-27 14:51:35,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 14:51:35,348 INFO L481 AbstractCegarLoop]: Abstraction has 744 states and 1353 transitions. [2018-10-27 14:51:35,348 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 14:51:35,348 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1353 transitions. [2018-10-27 14:51:35,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-10-27 14:51:35,357 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 14:51:35,357 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 14:51:35,358 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 14:51:35,358 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 14:51:35,358 INFO L82 PathProgramCache]: Analyzing trace with hash -722771479, now seen corresponding path program 1 times [2018-10-27 14:51:35,358 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 14:51:35,360 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 14:51:35,360 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 14:51:35,360 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 14:51:35,360 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 14:51:35,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 14:51:35,845 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 14:51:35,846 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 14:51:35,846 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 14:51:35,846 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 14:51:35,848 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 14:51:35,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 14:51:35,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 14:51:35,849 INFO L87 Difference]: Start difference. First operand 744 states and 1353 transitions. Second operand 6 states. [2018-10-27 14:51:44,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 14:51:44,313 INFO L93 Difference]: Finished difference Result 2184 states and 3997 transitions. [2018-10-27 14:51:44,318 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 14:51:44,318 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 140 [2018-10-27 14:51:44,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 14:51:44,332 INFO L225 Difference]: With dead ends: 2184 [2018-10-27 14:51:44,332 INFO L226 Difference]: Without dead ends: 1446 [2018-10-27 14:51:44,338 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-27 14:51:44,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1446 states. [2018-10-27 14:51:44,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1446 to 1425. [2018-10-27 14:51:44,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1425 states. [2018-10-27 14:51:44,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1425 states to 1425 states and 2267 transitions. [2018-10-27 14:51:44,412 INFO L78 Accepts]: Start accepts. Automaton has 1425 states and 2267 transitions. Word has length 140 [2018-10-27 14:51:44,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 14:51:44,413 INFO L481 AbstractCegarLoop]: Abstraction has 1425 states and 2267 transitions. [2018-10-27 14:51:44,413 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 14:51:44,414 INFO L276 IsEmpty]: Start isEmpty. Operand 1425 states and 2267 transitions. [2018-10-27 14:51:44,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2018-10-27 14:51:44,426 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 14:51:44,426 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 14:51:44,427 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 14:51:44,427 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 14:51:44,427 INFO L82 PathProgramCache]: Analyzing trace with hash 1752957247, now seen corresponding path program 1 times [2018-10-27 14:51:44,428 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 14:51:44,429 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 14:51:44,429 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 14:51:44,429 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 14:51:44,430 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 14:51:44,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 14:51:44,844 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 80 proven. 88 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-27 14:51:44,844 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 14:51:44,845 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 14:51:44,846 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 252 with the following transitions: [2018-10-27 14:51:44,848 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [455], [457], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [764], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [836], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-10-27 14:51:44,897 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-10-27 14:51:44,897 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 14:51:45,504 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 14:51:45,506 INFO L272 AbstractInterpreter]: Visited 116 different actions 116 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-27 14:51:45,550 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 14:51:45,550 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 14:51:46,406 INFO L227 lantSequenceWeakener]: Weakened 242 states. On average, predicates are now at 77.81% of their original sizes. [2018-10-27 14:51:46,407 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 14:51:46,591 INFO L415 sIntCurrentIteration]: We unified 250 AI predicates to 250 [2018-10-27 14:51:46,591 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 14:51:46,592 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 14:51:46,593 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-10-27 14:51:46,593 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 14:51:46,594 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-27 14:51:46,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-27 14:51:46,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-27 14:51:46,595 INFO L87 Difference]: Start difference. First operand 1425 states and 2267 transitions. Second operand 7 states. [2018-10-27 14:51:49,098 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-10-27 14:55:38,968 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 14:55:38,969 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-27 14:55:38,975 WARN L205 ceAbstractionStarter]: Timeout [2018-10-27 14:55:38,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 02:55:38 BoogieIcfgContainer [2018-10-27 14:55:38,976 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 14:55:38,977 INFO L168 Benchmark]: Toolchain (without parser) took 259317.61 ms. Allocated memory was 1.5 GB in the beginning and 2.9 GB in the end (delta: 1.4 GB). Free memory was 1.4 GB in the beginning and 2.5 GB in the end (delta: -1.1 GB). Peak memory consumption was 306.1 MB. Max. memory is 7.1 GB. [2018-10-27 14:55:38,978 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-27 14:55:38,978 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1279.65 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2018-10-27 14:55:38,979 INFO L168 Benchmark]: Boogie Procedure Inliner took 352.85 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 741.3 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -859.3 MB). Peak memory consumption was 28.6 MB. Max. memory is 7.1 GB. [2018-10-27 14:55:38,980 INFO L168 Benchmark]: Boogie Preprocessor took 144.97 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. [2018-10-27 14:55:38,981 INFO L168 Benchmark]: RCFGBuilder took 7706.29 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 269.8 MB). Peak memory consumption was 269.8 MB. Max. memory is 7.1 GB. [2018-10-27 14:55:38,982 INFO L168 Benchmark]: TraceAbstraction took 249828.35 ms. Allocated memory was 2.3 GB in the beginning and 2.9 GB in the end (delta: 637.5 MB). Free memory was 1.9 GB in the beginning and 2.5 GB in the end (delta: -581.6 MB). Peak memory consumption was 55.9 MB. Max. memory is 7.1 GB. [2018-10-27 14:55:38,988 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1279.65 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 352.85 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 741.3 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -859.3 MB). Peak memory consumption was 28.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 144.97 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 7706.29 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 269.8 MB). Peak memory consumption was 269.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 249828.35 ms. Allocated memory was 2.3 GB in the beginning and 2.9 GB in the end (delta: 637.5 MB). Free memory was 1.9 GB in the beginning and 2.5 GB in the end (delta: -581.6 MB). Peak memory consumption was 55.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 127]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 127). Cancelled while BasicCegarLoop was constructing difference of abstraction (1425states) and FLOYD_HOARE automaton (currently 7 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (933 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 249.7s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 246.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 331 SDtfs, 2639 SDslu, 284 SDs, 0 SdLazy, 3861 SolverSat, 1629 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 236.0s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 266 GetRequests, 249 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1425occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.7s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9977480519480522 AbsIntWeakeningRatio, 0.104 AbsIntAvgWeakeningVarsNumRemoved, 18.512 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 21 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 438 NumberOfCodeBlocks, 438 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 435 ConstructedInterpolants, 0 QuantifiedInterpolants, 282549 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 125/213 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown