java -Xss1g -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/cav12/simple_array_inversion-6.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 04:45:57,331 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 04:45:57,333 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 04:45:57,344 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 04:45:57,345 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 04:45:57,346 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 04:45:57,347 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 04:45:57,351 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 04:45:57,353 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 04:45:57,353 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 04:45:57,356 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 04:45:57,356 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 04:45:57,357 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 04:45:57,358 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 04:45:57,359 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 04:45:57,362 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 04:45:57,364 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 04:45:57,367 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 04:45:57,369 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 04:45:57,370 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 04:45:57,371 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 04:45:57,373 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 04:45:57,373 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 04:45:57,374 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 04:45:57,374 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 04:45:57,375 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 04:45:57,376 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 04:45:57,377 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 04:45:57,378 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 04:45:57,378 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 04:45:57,379 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 04:45:57,379 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 04:45:57,379 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 04:45:57,380 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 04:45:57,381 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 04:45:57,381 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-22 04:45:57,393 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 04:45:57,394 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 04:45:57,394 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 04:45:57,394 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 04:45:57,395 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 04:45:57,395 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 04:45:57,396 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 04:45:57,396 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 04:45:57,396 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 04:45:57,396 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 04:45:57,397 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 04:45:57,397 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 04:45:57,397 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 04:45:57,397 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 04:45:57,397 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 04:45:57,398 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 04:45:57,398 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 04:45:57,399 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 04:45:57,399 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 04:45:57,457 INFO ]: Repository-Root is: /tmp [2018-06-22 04:45:57,476 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 04:45:57,483 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 04:45:57,484 INFO ]: Initializing SmtParser... [2018-06-22 04:45:57,485 INFO ]: SmtParser initialized [2018-06-22 04:45:57,485 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/cav12/simple_array_inversion-6.smt2 [2018-06-22 04:45:57,487 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 [2018-06-22 04:45:57,580 INFO ]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/cav12/simple_array_inversion-6.smt2 unknown [2018-06-22 04:45:58,651 INFO ]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/cav12/simple_array_inversion-6.smt2 [2018-06-22 04:45:58,664 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 04:45:58,671 INFO ]: Walking toolchain with 4 elements. [2018-06-22 04:45:58,671 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 04:45:58,671 INFO ]: Initializing ChcToBoogie... [2018-06-22 04:45:58,672 INFO ]: ChcToBoogie initialized [2018-06-22 04:45:58,682 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 04:45:58" (1/1) ... [2018-06-22 04:45:58,780 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:45:58 Unit [2018-06-22 04:45:58,780 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 04:45:58,781 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 04:45:58,781 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 04:45:58,781 INFO ]: Boogie Preprocessor initialized [2018-06-22 04:45:58,802 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:45:58" (1/1) ... [2018-06-22 04:45:58,802 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:45:58" (1/1) ... [2018-06-22 04:45:58,824 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:45:58" (1/1) ... [2018-06-22 04:45:58,824 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:45:58" (1/1) ... [2018-06-22 04:45:58,856 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:45:58" (1/1) ... [2018-06-22 04:45:58,858 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:45:58" (1/1) ... [2018-06-22 04:45:58,862 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:45:58" (1/1) ... [2018-06-22 04:45:58,868 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 04:45:58,869 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 04:45:58,869 INFO ]: Initializing RCFGBuilder... [2018-06-22 04:45:58,869 INFO ]: RCFGBuilder initialized [2018-06-22 04:45:58,870 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:45:58" (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) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 04:45:58,896 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-22 04:45:58,896 INFO ]: Found specification of procedure gotoProc [2018-06-22 04:45:58,896 INFO ]: Found implementation of procedure gotoProc [2018-06-22 04:45:58,896 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 04:45:58,896 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 04:45:58,896 INFO ]: Found implementation of procedure Ultimate.START [2018-06-22 04:45:59,437 INFO ]: Using library mode [2018-06-22 04:45:59,439 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 04:45:59 BoogieIcfgContainer [2018-06-22 04:45:59,439 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 04:45:59,441 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 04:45:59,441 INFO ]: Initializing TraceAbstraction... [2018-06-22 04:45:59,448 INFO ]: TraceAbstraction initialized [2018-06-22 04:45:59,449 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 04:45:58" (1/3) ... [2018-06-22 04:45:59,450 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37b9c762 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 04:45:59, skipping insertion in model container [2018-06-22 04:45:59,450 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:45:58" (2/3) ... [2018-06-22 04:45:59,450 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37b9c762 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 04:45:59, skipping insertion in model container [2018-06-22 04:45:59,450 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 04:45:59" (3/3) ... [2018-06-22 04:45:59,452 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 04:45:59,461 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 04:45:59,470 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 04:45:59,520 INFO ]: Using default assertion order modulation [2018-06-22 04:45:59,521 INFO ]: Interprodecural is true [2018-06-22 04:45:59,521 INFO ]: Hoare is false [2018-06-22 04:45:59,521 INFO ]: Compute interpolants for FPandBP [2018-06-22 04:45:59,521 INFO ]: Backedges is TWOTRACK [2018-06-22 04:45:59,521 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 04:45:59,521 INFO ]: Difference is false [2018-06-22 04:45:59,521 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 04:45:59,521 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 04:45:59,537 INFO ]: Start isEmpty. Operand 10 states. [2018-06-22 04:45:59,551 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-22 04:45:59,551 INFO ]: Found error trace [2018-06-22 04:45:59,554 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-22 04:45:59,554 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 04:45:59,559 INFO ]: Analyzing trace with hash 1284994894, now seen corresponding path program 1 times [2018-06-22 04:45:59,561 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 04:45:59,562 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 04:45:59,611 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 04:45:59,611 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 04:45:59,611 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 04:45:59,702 INFO ]: Conjunction of SSA is unsat [2018-06-22 04:45:59,831 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 04:45:59,834 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 04:45:59,834 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-22 04:45:59,836 INFO ]: Interpolant automaton has 3 states [2018-06-22 04:45:59,851 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-22 04:45:59,851 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-22 04:45:59,854 INFO ]: Start difference. First operand 10 states. Second operand 3 states. [2018-06-22 04:45:59,956 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 04:45:59,956 INFO ]: Finished difference Result 9 states and 9 transitions. [2018-06-22 04:45:59,956 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-22 04:45:59,958 INFO ]: Start accepts. Automaton has 3 states. Word has length 7 [2018-06-22 04:45:59,958 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 04:45:59,970 INFO ]: With dead ends: 9 [2018-06-22 04:45:59,971 INFO ]: Without dead ends: 9 [2018-06-22 04:45:59,974 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 [2018-06-22 04:45:59,992 INFO ]: Start minimizeSevpa. Operand 9 states. [2018-06-22 04:46:00,020 INFO ]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-06-22 04:46:00,022 INFO ]: Start removeUnreachable. Operand 9 states. [2018-06-22 04:46:00,022 INFO ]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-06-22 04:46:00,024 INFO ]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2018-06-22 04:46:00,024 INFO ]: Finished accepts. word is rejected. [2018-06-22 04:46:00,024 INFO ]: Abstraction has 9 states and 9 transitions. [2018-06-22 04:46:00,024 INFO ]: Interpolant automaton has 3 states. [2018-06-22 04:46:00,024 INFO ]: Start isEmpty. Operand 9 states and 9 transitions. [2018-06-22 04:46:00,025 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-22 04:46:00,025 INFO ]: Found error trace [2018-06-22 04:46:00,025 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 04:46:00,025 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 04:46:00,025 INFO ]: Analyzing trace with hash 1180964567, now seen corresponding path program 1 times [2018-06-22 04:46:00,025 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 04:46:00,025 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 04:46:00,026 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 04:46:00,026 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 04:46:00,026 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 04:46:00,238 INFO ]: Conjunction of SSA is unsat [2018-06-22 04:46:00,556 WARN ]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-06-22 04:46:00,663 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 04:46:00,663 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 04:46:00,663 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 [2018-06-22 04:46:00,678 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 04:46:00,809 INFO ]: Conjunction of SSA is unsat [2018-06-22 04:46:00,822 INFO ]: Computing forward predicates... [2018-06-22 04:46:02,873 WARN ]: Spent 651.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 11 [2018-06-22 04:46:02,892 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 04:46:02,928 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 04:46:02,928 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2018-06-22 04:46:02,928 INFO ]: Interpolant automaton has 6 states [2018-06-22 04:46:02,928 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-22 04:46:02,929 INFO ]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-06-22 04:46:02,929 INFO ]: Start difference. First operand 9 states and 9 transitions. Second operand 6 states. [2018-06-22 04:46:03,035 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 04:46:03,035 INFO ]: Finished difference Result 11 states and 11 transitions. [2018-06-22 04:46:03,035 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-22 04:46:03,035 INFO ]: Start accepts. Automaton has 6 states. Word has length 8 [2018-06-22 04:46:03,035 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 04:46:03,035 INFO ]: With dead ends: 11 [2018-06-22 04:46:03,035 INFO ]: Without dead ends: 11 [2018-06-22 04:46:03,036 INFO ]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-06-22 04:46:03,037 INFO ]: Start minimizeSevpa. Operand 11 states. [2018-06-22 04:46:03,037 INFO ]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-06-22 04:46:03,038 INFO ]: Start removeUnreachable. Operand 11 states. [2018-06-22 04:46:03,038 INFO ]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2018-06-22 04:46:03,038 INFO ]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 8 [2018-06-22 04:46:03,038 INFO ]: Finished accepts. word is rejected. [2018-06-22 04:46:03,038 INFO ]: Abstraction has 11 states and 11 transitions. [2018-06-22 04:46:03,038 INFO ]: Interpolant automaton has 6 states. [2018-06-22 04:46:03,038 INFO ]: Start isEmpty. Operand 11 states and 11 transitions. [2018-06-22 04:46:03,038 INFO ]: Finished isEmpty. Found accepting run of length 11 [2018-06-22 04:46:03,038 INFO ]: Found error trace [2018-06-22 04:46:03,039 INFO ]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 04:46:03,039 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 04:46:03,039 INFO ]: Analyzing trace with hash 1062095287, now seen corresponding path program 2 times [2018-06-22 04:46:03,039 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 04:46:03,039 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 04:46:03,040 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 04:46:03,040 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 04:46:03,040 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 04:46:03,327 INFO ]: Conjunction of SSA is unsat [2018-06-22 04:46:03,913 WARN ]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-06-22 04:46:04,223 WARN ]: Spent 145.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 11 [2018-06-22 04:46:04,261 INFO ]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 04:46:04,261 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 04:46:04,261 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 [2018-06-22 04:46:04,274 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-22 04:46:04,510 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-22 04:46:04,510 INFO ]: Conjunction of SSA is unsat [2018-06-22 04:46:04,525 INFO ]: Computing forward predicates... [2018-06-22 04:46:05,171 WARN ]: Spent 100.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 11 [2018-06-22 04:46:11,648 WARN ]: Spent 908.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 26 [2018-06-22 04:46:12,532 INFO ]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 04:46:12,570 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 04:46:12,570 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2018-06-22 04:46:12,571 INFO ]: Interpolant automaton has 10 states [2018-06-22 04:46:12,571 INFO ]: Constructing interpolant automaton starting with 10 interpolants. [2018-06-22 04:46:12,571 INFO ]: CoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2018-06-22 04:46:12,571 INFO ]: Start difference. First operand 11 states and 11 transitions. Second operand 10 states. [2018-06-22 04:46:12,862 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 04:46:12,862 INFO ]: Finished difference Result 13 states and 13 transitions. [2018-06-22 04:46:12,862 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-06-22 04:46:12,862 INFO ]: Start accepts. Automaton has 10 states. Word has length 10 [2018-06-22 04:46:12,862 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 04:46:12,863 INFO ]: With dead ends: 13 [2018-06-22 04:46:12,863 INFO ]: Without dead ends: 13 [2018-06-22 04:46:12,863 INFO ]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2018-06-22 04:46:12,863 INFO ]: Start minimizeSevpa. Operand 13 states. [2018-06-22 04:46:12,864 INFO ]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-06-22 04:46:12,864 INFO ]: Start removeUnreachable. Operand 13 states. [2018-06-22 04:46:12,865 INFO ]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2018-06-22 04:46:12,865 INFO ]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 10 [2018-06-22 04:46:12,865 INFO ]: Finished accepts. word is rejected. [2018-06-22 04:46:12,865 INFO ]: Abstraction has 13 states and 13 transitions. [2018-06-22 04:46:12,865 INFO ]: Interpolant automaton has 10 states. [2018-06-22 04:46:12,865 INFO ]: Start isEmpty. Operand 13 states and 13 transitions. [2018-06-22 04:46:12,865 INFO ]: Finished isEmpty. Found accepting run of length 13 [2018-06-22 04:46:12,865 INFO ]: Found error trace [2018-06-22 04:46:12,865 INFO ]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 04:46:12,866 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 04:46:12,866 INFO ]: Analyzing trace with hash -1502133097, now seen corresponding path program 3 times [2018-06-22 04:46:12,866 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 04:46:12,866 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 04:46:12,867 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 04:46:12,867 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 04:46:12,867 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 04:46:13,221 INFO ]: Conjunction of SSA is unsat [2018-06-22 04:46:13,896 WARN ]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-06-22 04:46:14,240 WARN ]: Spent 291.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 7 [2018-06-22 04:46:14,482 INFO ]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 04:46:14,482 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 04:46:14,482 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 [2018-06-22 04:46:14,491 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-06-22 04:46:14,798 INFO ]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-06-22 04:46:14,798 INFO ]: Conjunction of SSA is unsat [2018-06-22 04:46:14,819 INFO ]: Computing forward predicates... [2018-06-22 04:46:20,513 WARN ]: Spent 462.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 30 [2018-06-22 04:46:26,573 WARN ]: Spent 1.70 s on a formula simplification. DAG size of input: 320 DAG size of output: 22 [2018-06-22 04:46:31,651 WARN ]: Spent 1.70 s on a formula simplification. DAG size of input: 318 DAG size of output: 19 [2018-06-22 04:46:34,113 INFO ]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 04:46:34,137 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 04:46:34,137 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2018-06-22 04:46:34,137 INFO ]: Interpolant automaton has 14 states [2018-06-22 04:46:34,137 INFO ]: Constructing interpolant automaton starting with 14 interpolants. [2018-06-22 04:46:34,138 INFO ]: CoverageRelationStatistics Valid=69, Invalid=113, Unknown=0, NotChecked=0, Total=182 [2018-06-22 04:46:34,138 INFO ]: Start difference. First operand 13 states and 13 transitions. Second operand 14 states. [2018-06-22 04:46:34,324 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 04:46:34,325 INFO ]: Finished difference Result 15 states and 15 transitions. [2018-06-22 04:46:34,326 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-06-22 04:46:34,326 INFO ]: Start accepts. Automaton has 14 states. Word has length 12 [2018-06-22 04:46:34,326 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 04:46:34,326 INFO ]: With dead ends: 15 [2018-06-22 04:46:34,326 INFO ]: Without dead ends: 15 [2018-06-22 04:46:34,326 INFO ]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=93, Invalid=147, Unknown=0, NotChecked=0, Total=240 [2018-06-22 04:46:34,327 INFO ]: Start minimizeSevpa. Operand 15 states. [2018-06-22 04:46:34,328 INFO ]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-06-22 04:46:34,328 INFO ]: Start removeUnreachable. Operand 15 states. [2018-06-22 04:46:34,328 INFO ]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2018-06-22 04:46:34,328 INFO ]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 12 [2018-06-22 04:46:34,329 INFO ]: Finished accepts. word is rejected. [2018-06-22 04:46:34,329 INFO ]: Abstraction has 15 states and 15 transitions. [2018-06-22 04:46:34,329 INFO ]: Interpolant automaton has 14 states. [2018-06-22 04:46:34,329 INFO ]: Start isEmpty. Operand 15 states and 15 transitions. [2018-06-22 04:46:34,329 INFO ]: Finished isEmpty. Found accepting run of length 15 [2018-06-22 04:46:34,329 INFO ]: Found error trace [2018-06-22 04:46:34,329 INFO ]: trace histogram [7, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 04:46:34,329 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 04:46:34,329 INFO ]: Analyzing trace with hash -414382217, now seen corresponding path program 4 times [2018-06-22 04:46:34,329 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 04:46:34,329 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 04:46:34,330 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 04:46:34,330 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 04:46:34,330 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 04:46:34,907 INFO ]: Conjunction of SSA is unsat [2018-06-22 04:46:35,684 WARN ]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-06-22 04:46:36,044 WARN ]: Spent 303.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 12 [2018-06-22 04:46:36,187 WARN ]: Spent 125.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 58 [2018-06-22 04:46:36,544 WARN ]: Spent 309.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 59 [2018-06-22 04:46:36,772 WARN ]: Spent 208.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 59 [2018-06-22 04:46:37,044 WARN ]: Spent 249.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 60 [2018-06-22 04:46:37,164 INFO ]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 04:46:37,165 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 04:46:37,165 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 04:46:37,173 INFO ]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-06-22 04:46:37,625 INFO ]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-06-22 04:46:37,625 INFO ]: Conjunction of SSA is unsat [2018-06-22 04:46:37,650 INFO ]: Computing forward predicates... Received shutdown request... [2018-06-22 04:46:57,348 WARN ]: Removed 228 from assertion stack [2018-06-22 04:46:57,348 INFO ]: Timeout while computing interpolants [2018-06-22 04:46:57,549 WARN ]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 04:46:57,549 WARN ]: Verification canceled [2018-06-22 04:46:57,553 WARN ]: Timeout [2018-06-22 04:46:57,553 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 04:46:57 BoogieIcfgContainer [2018-06-22 04:46:57,553 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 04:46:57,554 INFO ]: Toolchain (without parser) took 58889.16 ms. Allocated memory was 306.7 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 227.4 MB in the beginning and 1.4 GB in the end (delta: -1.2 GB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. [2018-06-22 04:46:57,554 INFO ]: SmtParser took 0.09 ms. Allocated memory is still 306.7 MB. Free memory is still 272.3 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 04:46:57,555 INFO ]: ChcToBoogie took 108.70 ms. Allocated memory is still 306.7 MB. Free memory was 226.4 MB in the beginning and 223.4 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. [2018-06-22 04:46:57,555 INFO ]: Boogie Preprocessor took 87.72 ms. Allocated memory is still 306.7 MB. Free memory was 223.4 MB in the beginning and 221.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 04:46:57,555 INFO ]: RCFGBuilder took 570.68 ms. Allocated memory was 306.7 MB in the beginning and 326.6 MB in the end (delta: 19.9 MB). Free memory was 221.4 MB in the beginning and 282.7 MB in the end (delta: -61.3 MB). Peak memory consumption was 41.1 MB. Max. memory is 3.6 GB. [2018-06-22 04:46:57,556 INFO ]: TraceAbstraction took 58111.97 ms. Allocated memory was 326.6 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 282.7 MB in the beginning and 1.4 GB in the end (delta: -1.1 GB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. [2018-06-22 04:46:57,558 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.09 ms. Allocated memory is still 306.7 MB. Free memory is still 272.3 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 108.70 ms. Allocated memory is still 306.7 MB. Free memory was 226.4 MB in the beginning and 223.4 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 87.72 ms. Allocated memory is still 306.7 MB. Free memory was 223.4 MB in the beginning and 221.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 570.68 ms. Allocated memory was 306.7 MB in the beginning and 326.6 MB in the end (delta: 19.9 MB). Free memory was 221.4 MB in the beginning and 282.7 MB in the end (delta: -61.3 MB). Peak memory consumption was 41.1 MB. Max. memory is 3.6 GB. * TraceAbstraction took 58111.97 ms. Allocated memory was 326.6 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 282.7 MB in the beginning and 1.4 GB in the end (delta: -1.1 GB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [UNKNOWN] : Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 0). Cancelled while BasicCegarLoop was analyzing trace of length 15 with TraceHistMax 7, while TraceCheckSpWp was constructing forward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 1274. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 10 locations, 1 error locations. TIMEOUT Result, 58.0s OverallTime, 5 OverallIterations, 7 TraceHistogramMax, 0.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 28 SDtfs, 3 SDslu, 78 SDs, 0 SdLazy, 34 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 8.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=4, 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: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 32.1s InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 3676 SizeOfPredicates, 12 NumberOfNonLiveVariables, 1767 ConjunctsInSsa, 92 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 0/44 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/simple_array_inversion-6.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_04-46-57-571.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/simple_array_inversion-6.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_04-46-57-571.csv Completed graceful shutdown