java -Xss4m -Xmx4000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCHC.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf -i /storage/chc-comp/vmt-chc-benchmarks/lustre/metros_3_e4_1251.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-14921ce [2018-06-25 16:44:46,932 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-25 16:44:46,936 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-25 16:44:46,946 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-25 16:44:46,947 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-25 16:44:46,948 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-25 16:44:46,949 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-25 16:44:46,953 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-25 16:44:46,954 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-25 16:44:46,956 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-25 16:44:46,957 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-25 16:44:46,957 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-25 16:44:46,958 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-25 16:44:46,959 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-25 16:44:46,959 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-25 16:44:46,962 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-25 16:44:46,963 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-25 16:44:46,976 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-25 16:44:46,978 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-25 16:44:46,978 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-25 16:44:46,979 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-25 16:44:46,981 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-25 16:44:46,982 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-25 16:44:46,982 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-25 16:44:46,983 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-25 16:44:46,983 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-25 16:44:46,990 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-25 16:44:46,990 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-25 16:44:46,991 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-25 16:44:46,991 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-25 16:44:46,992 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-25 16:44:46,992 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-25 16:44:46,993 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-25 16:44:46,993 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-25 16:44:46,994 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-25 16:44:46,994 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-25 16:44:47,010 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-25 16:44:47,010 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-25 16:44:47,011 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-25 16:44:47,011 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-25 16:44:47,012 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-25 16:44:47,012 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-25 16:44:47,012 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-25 16:44:47,012 INFO L133 SettingsManager]: * Use SBE=true [2018-06-25 16:44:47,013 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-25 16:44:47,013 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-25 16:44:47,013 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-25 16:44:47,013 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-25 16:44:47,013 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-25 16:44:47,014 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-25 16:44:47,014 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-25 16:44:47,014 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-25 16:44:47,014 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-25 16:44:47,014 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-25 16:44:47,015 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-25 16:44:47,015 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-25 16:44:47,015 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-25 16:44:47,016 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-25 16:44:47,016 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-25 16:44:47,072 INFO ]: Repository-Root is: /tmp [2018-06-25 16:44:47,088 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-25 16:44:47,092 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-25 16:44:47,093 INFO ]: Initializing SmtParser... [2018-06-25 16:44:47,094 INFO ]: SmtParser initialized [2018-06-25 16:44:47,094 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/lustre/metros_3_e4_1251.smt2 [2018-06-25 16:44:47,095 INFO ]: Parsing .smt2 file as a set of Horn Clauses No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-06-25 16:44:47,179 INFO ]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/metros_3_e4_1251.smt2 unknown [2018-06-25 16:44:47,631 INFO ]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/metros_3_e4_1251.smt2 [2018-06-25 16:44:47,636 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-25 16:44:47,650 INFO ]: Walking toolchain with 4 elements. [2018-06-25 16:44:47,650 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-25 16:44:47,651 INFO ]: Initializing ChcToBoogie... [2018-06-25 16:44:47,651 INFO ]: ChcToBoogie initialized [2018-06-25 16:44:47,654 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 04:44:47" (1/1) ... [2018-06-25 16:44:47,785 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 04:44:47 Unit [2018-06-25 16:44:47,785 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-25 16:44:47,786 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-25 16:44:47,786 INFO ]: Initializing Boogie Preprocessor... [2018-06-25 16:44:47,786 INFO ]: Boogie Preprocessor initialized [2018-06-25 16:44:47,804 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 04:44:47" (1/1) ... [2018-06-25 16:44:47,804 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 04:44:47" (1/1) ... [2018-06-25 16:44:47,811 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 04:44:47" (1/1) ... [2018-06-25 16:44:47,811 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 04:44:47" (1/1) ... [2018-06-25 16:44:47,816 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 04:44:47" (1/1) ... [2018-06-25 16:44:47,818 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 04:44:47" (1/1) ... [2018-06-25 16:44:47,820 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 04:44:47" (1/1) ... [2018-06-25 16:44:47,823 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-25 16:44:47,824 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-25 16:44:47,824 INFO ]: Initializing RCFGBuilder... [2018-06-25 16:44:47,831 INFO ]: RCFGBuilder initialized [2018-06-25 16:44:47,832 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 04:44:47" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2018-06-25 16:44:47,842 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-25 16:44:47,842 INFO ]: Found specification of procedure gotoProc [2018-06-25 16:44:47,842 INFO ]: Found implementation of procedure gotoProc [2018-06-25 16:44:47,842 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-25 16:44:47,842 INFO ]: Found specification of procedure Ultimate.START [2018-06-25 16:44:47,842 INFO ]: Found implementation of procedure Ultimate.START Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-25 16:44:48,207 INFO ]: Using library mode [2018-06-25 16:44:48,208 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 04:44:48 BoogieIcfgContainer [2018-06-25 16:44:48,208 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-25 16:44:48,209 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-25 16:44:48,209 INFO ]: Initializing TraceAbstraction... [2018-06-25 16:44:48,212 INFO ]: TraceAbstraction initialized [2018-06-25 16:44:48,212 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 04:44:47" (1/3) ... [2018-06-25 16:44:48,213 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26b8dc1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 25.06 04:44:48, skipping insertion in model container [2018-06-25 16:44:48,213 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 04:44:47" (2/3) ... [2018-06-25 16:44:48,213 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26b8dc1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.06 04:44:48, skipping insertion in model container [2018-06-25 16:44:48,213 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 04:44:48" (3/3) ... [2018-06-25 16:44:48,215 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-25 16:44:48,221 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-25 16:44:48,227 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-25 16:44:48,270 INFO ]: Using default assertion order modulation [2018-06-25 16:44:48,270 INFO ]: Interprodecural is true [2018-06-25 16:44:48,270 INFO ]: Hoare is false [2018-06-25 16:44:48,270 INFO ]: Compute interpolants for FPandBP [2018-06-25 16:44:48,270 INFO ]: Backedges is TWOTRACK [2018-06-25 16:44:48,270 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-25 16:44:48,270 INFO ]: Difference is false [2018-06-25 16:44:48,270 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-25 16:44:48,270 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-25 16:44:48,282 INFO ]: Start isEmpty. Operand 10 states. [2018-06-25 16:44:48,291 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-25 16:44:48,291 INFO ]: Found error trace [2018-06-25 16:44:48,292 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-25 16:44:48,292 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 16:44:48,297 INFO ]: Analyzing trace with hash 1284994894, now seen corresponding path program 1 times [2018-06-25 16:44:48,299 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 16:44:48,299 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 16:44:48,330 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 16:44:48,330 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 16:44:48,330 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 16:44:48,430 INFO ]: Conjunction of SSA is unsat [2018-06-25 16:44:48,584 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 16:44:48,587 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 16:44:48,587 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-25 16:44:48,589 INFO ]: Interpolant automaton has 3 states [2018-06-25 16:44:48,604 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-25 16:44:48,604 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-25 16:44:48,607 INFO ]: Start difference. First operand 10 states. Second operand 3 states. [2018-06-25 16:44:48,711 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 16:44:48,711 INFO ]: Finished difference Result 9 states and 9 transitions. [2018-06-25 16:44:48,711 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-25 16:44:48,712 INFO ]: Start accepts. Automaton has 3 states. Word has length 7 [2018-06-25 16:44:48,712 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 16:44:48,718 INFO ]: With dead ends: 9 [2018-06-25 16:44:48,718 INFO ]: Without dead ends: 9 [2018-06-25 16:44:48,719 INFO ]: 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 [2018-06-25 16:44:48,733 INFO ]: Start minimizeSevpa. Operand 9 states. [2018-06-25 16:44:48,747 INFO ]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-06-25 16:44:48,748 INFO ]: Start removeUnreachable. Operand 9 states. [2018-06-25 16:44:48,748 INFO ]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-06-25 16:44:48,750 INFO ]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2018-06-25 16:44:48,750 INFO ]: Finished accepts. word is rejected. [2018-06-25 16:44:48,750 INFO ]: Abstraction has 9 states and 9 transitions. [2018-06-25 16:44:48,750 INFO ]: Interpolant automaton has 3 states. [2018-06-25 16:44:48,750 INFO ]: Start isEmpty. Operand 9 states and 9 transitions. [2018-06-25 16:44:48,750 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-25 16:44:48,750 INFO ]: Found error trace [2018-06-25 16:44:48,750 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 16:44:48,750 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 16:44:48,751 INFO ]: Analyzing trace with hash 1180964567, now seen corresponding path program 1 times [2018-06-25 16:44:48,751 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 16:44:48,751 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 16:44:48,751 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 16:44:48,751 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 16:44:48,751 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 16:44:48,873 INFO ]: Conjunction of SSA is unsat [2018-06-25 16:44:49,151 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 16:44:49,151 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 16:44:49,151 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/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 [2018-06-25 16:44:49,159 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 16:44:49,297 INFO ]: Conjunction of SSA is unsat [2018-06-25 16:44:49,309 INFO ]: Computing forward predicates... [2018-06-25 16:44:49,587 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 16:44:49,622 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-25 16:44:49,623 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2018-06-25 16:44:49,623 INFO ]: Interpolant automaton has 6 states [2018-06-25 16:44:49,623 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-25 16:44:49,623 INFO ]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-06-25 16:44:49,623 INFO ]: Start difference. First operand 9 states and 9 transitions. Second operand 6 states. [2018-06-25 16:44:49,884 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 16:44:49,885 INFO ]: Finished difference Result 11 states and 11 transitions. [2018-06-25 16:44:49,885 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-25 16:44:49,885 INFO ]: Start accepts. Automaton has 6 states. Word has length 8 [2018-06-25 16:44:49,885 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 16:44:49,886 INFO ]: With dead ends: 11 [2018-06-25 16:44:49,886 INFO ]: Without dead ends: 11 [2018-06-25 16:44:49,886 INFO ]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-06-25 16:44:49,887 INFO ]: Start minimizeSevpa. Operand 11 states. [2018-06-25 16:44:49,888 INFO ]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-06-25 16:44:49,888 INFO ]: Start removeUnreachable. Operand 11 states. [2018-06-25 16:44:49,888 INFO ]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2018-06-25 16:44:49,888 INFO ]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 8 [2018-06-25 16:44:49,888 INFO ]: Finished accepts. word is rejected. [2018-06-25 16:44:49,888 INFO ]: Abstraction has 11 states and 11 transitions. [2018-06-25 16:44:49,888 INFO ]: Interpolant automaton has 6 states. [2018-06-25 16:44:49,888 INFO ]: Start isEmpty. Operand 11 states and 11 transitions. [2018-06-25 16:44:49,888 INFO ]: Finished isEmpty. Found accepting run of length 11 [2018-06-25 16:44:49,888 INFO ]: Found error trace [2018-06-25 16:44:49,889 INFO ]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 16:44:49,889 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 16:44:49,890 INFO ]: Analyzing trace with hash 1062095287, now seen corresponding path program 2 times [2018-06-25 16:44:49,890 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 16:44:49,890 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 16:44:49,891 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 16:44:49,891 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 16:44:49,891 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 16:44:50,062 INFO ]: Conjunction of SSA is unsat [2018-06-25 16:44:50,450 WARN ]: Spent 151.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 17 [2018-06-25 16:44:50,761 WARN ]: Spent 231.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 29 [2018-06-25 16:44:50,779 INFO ]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 16:44:50,780 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 16:44:50,780 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/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 [2018-06-25 16:44:50,787 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-25 16:44:50,982 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-25 16:44:50,982 INFO ]: Conjunction of SSA is unsat [2018-06-25 16:44:50,988 INFO ]: Computing forward predicates... [2018-06-25 16:44:51,449 INFO ]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 16:44:51,469 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-25 16:44:51,469 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2018-06-25 16:44:51,470 INFO ]: Interpolant automaton has 10 states [2018-06-25 16:44:51,470 INFO ]: Constructing interpolant automaton starting with 10 interpolants. [2018-06-25 16:44:51,470 INFO ]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2018-06-25 16:44:51,470 INFO ]: Start difference. First operand 11 states and 11 transitions. Second operand 10 states. [2018-06-25 16:44:51,688 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 16:44:51,688 INFO ]: Finished difference Result 13 states and 13 transitions. [2018-06-25 16:44:51,691 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-25 16:44:51,691 INFO ]: Start accepts. Automaton has 10 states. Word has length 10 [2018-06-25 16:44:51,691 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 16:44:51,691 INFO ]: With dead ends: 13 [2018-06-25 16:44:51,691 INFO ]: Without dead ends: 13 [2018-06-25 16:44:51,692 INFO ]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2018-06-25 16:44:51,692 INFO ]: Start minimizeSevpa. Operand 13 states. [2018-06-25 16:44:51,693 INFO ]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-06-25 16:44:51,693 INFO ]: Start removeUnreachable. Operand 13 states. [2018-06-25 16:44:51,694 INFO ]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2018-06-25 16:44:51,694 INFO ]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 10 [2018-06-25 16:44:51,694 INFO ]: Finished accepts. word is rejected. [2018-06-25 16:44:51,694 INFO ]: Abstraction has 13 states and 13 transitions. [2018-06-25 16:44:51,694 INFO ]: Interpolant automaton has 10 states. [2018-06-25 16:44:51,694 INFO ]: Start isEmpty. Operand 13 states and 13 transitions. [2018-06-25 16:44:51,694 INFO ]: Finished isEmpty. Found accepting run of length 13 [2018-06-25 16:44:51,694 INFO ]: Found error trace [2018-06-25 16:44:51,694 INFO ]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 16:44:51,694 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 16:44:51,694 INFO ]: Analyzing trace with hash -1502133097, now seen corresponding path program 3 times [2018-06-25 16:44:51,694 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 16:44:51,694 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 16:44:51,695 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 16:44:51,695 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-25 16:44:51,695 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 16:44:51,950 INFO ]: Conjunction of SSA is unsat [2018-06-25 16:44:52,933 WARN ]: Spent 305.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 26 [2018-06-25 16:44:53,342 WARN ]: Spent 359.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 22 [2018-06-25 16:44:53,618 WARN ]: Spent 212.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 24 [2018-06-25 16:44:53,629 INFO ]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 16:44:53,630 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 16:44:53,630 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-25 16:44:53,636 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-06-25 16:44:53,870 INFO ]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-06-25 16:44:53,870 INFO ]: Conjunction of SSA is unsat [2018-06-25 16:44:53,880 INFO ]: Computing forward predicates... [2018-06-25 16:44:54,265 INFO ]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 16:44:54,286 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-25 16:44:54,286 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2018-06-25 16:44:54,286 INFO ]: Interpolant automaton has 14 states [2018-06-25 16:44:54,287 INFO ]: Constructing interpolant automaton starting with 14 interpolants. [2018-06-25 16:44:54,287 INFO ]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2018-06-25 16:44:54,287 INFO ]: Start difference. First operand 13 states and 13 transitions. Second operand 14 states. [2018-06-25 16:44:54,489 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 16:44:54,489 INFO ]: Finished difference Result 15 states and 15 transitions. [2018-06-25 16:44:54,491 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-06-25 16:44:54,491 INFO ]: Start accepts. Automaton has 14 states. Word has length 12 [2018-06-25 16:44:54,491 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 16:44:54,491 INFO ]: With dead ends: 15 [2018-06-25 16:44:54,491 INFO ]: Without dead ends: 15 [2018-06-25 16:44:54,492 INFO ]: 0 DeclaredPredicates, 24 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2018-06-25 16:44:54,492 INFO ]: Start minimizeSevpa. Operand 15 states. [2018-06-25 16:44:54,493 INFO ]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-06-25 16:44:54,493 INFO ]: Start removeUnreachable. Operand 15 states. [2018-06-25 16:44:54,494 INFO ]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2018-06-25 16:44:54,494 INFO ]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 12 [2018-06-25 16:44:54,494 INFO ]: Finished accepts. word is rejected. [2018-06-25 16:44:54,494 INFO ]: Abstraction has 15 states and 15 transitions. [2018-06-25 16:44:54,494 INFO ]: Interpolant automaton has 14 states. [2018-06-25 16:44:54,494 INFO ]: Start isEmpty. Operand 15 states and 15 transitions. [2018-06-25 16:44:54,494 INFO ]: Finished isEmpty. Found accepting run of length 15 [2018-06-25 16:44:54,494 INFO ]: Found error trace [2018-06-25 16:44:54,494 INFO ]: trace histogram [7, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 16:44:54,495 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 16:44:54,495 INFO ]: Analyzing trace with hash -414382217, now seen corresponding path program 4 times [2018-06-25 16:44:54,495 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 16:44:54,495 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 16:44:54,495 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 16:44:54,495 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-25 16:44:54,495 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 16:44:55,897 INFO ]: Conjunction of SSA is unsat Received shutdown request... [2018-06-25 16:46:01,748 FATAL]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Timeout exceeded at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.walkLeafNode(Interpolator.java:265) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.access$1(Interpolator.java:263) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator$ProofTreeWalker.walk(Interpolator.java:132) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:122) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:113) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.interpolate(Interpolator.java:220) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:201) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:919) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.getInterpolants(ManagedScript.java:199) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:282) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsTree(InterpolatingTraceCheckCraig.java:271) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:207) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructCraig(TraceCheckConstructor.java:210) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:180) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java:228) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:220) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:194) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:410) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:425) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:367) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:309) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:151) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:119) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:324) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.runToolchainDefault(DefaultToolchainJob.java:221) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.BasicToolchainJob.run(BasicToolchainJob.java:134) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-06-25 16:46:01,752 INFO ]: Toolchain (without parser) took 74115.85 ms. Allocated memory was 309.3 MB in the beginning and 577.2 MB in the end (delta: 267.9 MB). Free memory was 250.7 MB in the beginning and 161.2 MB in the end (delta: 89.5 MB). Peak memory consumption was 357.4 MB. Max. memory is 3.6 GB. [2018-06-25 16:46:01,753 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 309.3 MB. Free memory is still 274.8 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-25 16:46:01,753 INFO ]: ChcToBoogie took 134.80 ms. Allocated memory is still 309.3 MB. Free memory was 250.7 MB in the beginning and 247.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. [2018-06-25 16:46:01,754 INFO ]: Boogie Preprocessor took 37.54 ms. Allocated memory is still 309.3 MB. Free memory was 247.7 MB in the beginning and 246.7 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 3.6 GB. [2018-06-25 16:46:01,754 INFO ]: RCFGBuilder took 384.08 ms. Allocated memory is still 309.3 MB. Free memory was 246.7 MB in the beginning and 215.6 MB in the end (delta: 31.1 MB). Peak memory consumption was 31.1 MB. Max. memory is 3.6 GB. [2018-06-25 16:46:01,755 INFO ]: TraceAbstraction took 73542.14 ms. Allocated memory was 309.3 MB in the beginning and 577.2 MB in the end (delta: 267.9 MB). Free memory was 214.6 MB in the beginning and 161.6 MB in the end (delta: 53.0 MB). Peak memory consumption was 321.3 MB. Max. memory is 3.6 GB. [2018-06-25 16:46:01,758 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.07 ms. Allocated memory is still 309.3 MB. Free memory is still 274.8 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 134.80 ms. Allocated memory is still 309.3 MB. Free memory was 250.7 MB in the beginning and 247.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 37.54 ms. Allocated memory is still 309.3 MB. Free memory was 247.7 MB in the beginning and 246.7 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 384.08 ms. Allocated memory is still 309.3 MB. Free memory was 246.7 MB in the beginning and 215.6 MB in the end (delta: 31.1 MB). Peak memory consumption was 31.1 MB. Max. memory is 3.6 GB. * TraceAbstraction took 73542.14 ms. Allocated memory was 309.3 MB in the beginning and 577.2 MB in the end (delta: 267.9 MB). Free memory was 214.6 MB in the beginning and 161.6 MB in the end (delta: 53.0 MB). Peak memory consumption was 321.3 MB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: Timeout exceeded de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: Timeout exceeded: de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.walkLeafNode(Interpolator.java:265) RESULT: Ultimate could not prove your program: Toolchain returned no result. Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/metros_3_e4_1251.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-25_16-46-01-768.csv Completed graceful shutdown