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/hopv/lia/termination/binomial02.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 01:54:20,488 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 01:54:20,490 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 01:54:20,503 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 01:54:20,503 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 01:54:20,504 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 01:54:20,506 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 01:54:20,508 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 01:54:20,510 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 01:54:20,510 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 01:54:20,511 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 01:54:20,512 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 01:54:20,513 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 01:54:20,514 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 01:54:20,514 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 01:54:20,515 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 01:54:20,517 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 01:54:20,519 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 01:54:20,523 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 01:54:20,524 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 01:54:20,525 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 01:54:20,537 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-06-22 01:54:20,546 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 01:54:20,547 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 01:54:20,548 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 01:54:20,548 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 01:54:20,549 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 01:54:20,549 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 01:54:20,550 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-22 01:54:20,576 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 01:54:20,576 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 01:54:20,577 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 01:54:20,577 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 01:54:20,579 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 01:54:20,579 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 01:54:20,579 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 01:54:20,579 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 01:54:20,580 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 01:54:20,580 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 01:54:20,580 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 01:54:20,580 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 01:54:20,580 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 01:54:20,581 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 01:54:20,581 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 01:54:20,581 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 01:54:20,581 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 01:54:20,584 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 01:54:20,584 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 01:54:20,642 INFO ]: Repository-Root is: /tmp [2018-06-22 01:54:20,660 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 01:54:20,663 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 01:54:20,666 INFO ]: Initializing SmtParser... [2018-06-22 01:54:20,666 INFO ]: SmtParser initialized [2018-06-22 01:54:20,667 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/hopv/lia/termination/binomial02.smt2 [2018-06-22 01:54:20,669 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 01:54:20,774 INFO ]: Executing SMT file /storage/chc-comp/hopv/lia/termination/binomial02.smt2 unknown [2018-06-22 01:54:21,372 INFO ]: Succesfully executed SMT file /storage/chc-comp/hopv/lia/termination/binomial02.smt2 [2018-06-22 01:54:21,376 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 01:54:21,392 INFO ]: Walking toolchain with 4 elements. [2018-06-22 01:54:21,392 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 01:54:21,392 INFO ]: Initializing ChcToBoogie... [2018-06-22 01:54:21,392 INFO ]: ChcToBoogie initialized [2018-06-22 01:54:21,395 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 01:54:21" (1/1) ... [2018-06-22 01:54:21,493 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:54:21 Unit [2018-06-22 01:54:21,493 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 01:54:21,494 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 01:54:21,494 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 01:54:21,494 INFO ]: Boogie Preprocessor initialized [2018-06-22 01:54:21,516 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:54:21" (1/1) ... [2018-06-22 01:54:21,516 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:54:21" (1/1) ... [2018-06-22 01:54:21,540 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:54:21" (1/1) ... [2018-06-22 01:54:21,541 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:54:21" (1/1) ... [2018-06-22 01:54:21,559 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:54:21" (1/1) ... [2018-06-22 01:54:21,564 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:54:21" (1/1) ... [2018-06-22 01:54:21,569 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:54:21" (1/1) ... [2018-06-22 01:54:21,573 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 01:54:21,574 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 01:54:21,574 INFO ]: Initializing RCFGBuilder... [2018-06-22 01:54:21,574 INFO ]: RCFGBuilder initialized [2018-06-22 01:54:21,575 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:54:21" (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) [2018-06-22 01:54:21,605 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-22 01:54:21,605 INFO ]: Found specification of procedure gotoProc [2018-06-22 01:54:21,605 INFO ]: Found implementation of procedure gotoProc [2018-06-22 01:54:21,605 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 01:54:21,605 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 01:54:21,605 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 [2018-06-22 01:54:22,673 INFO ]: Using library mode [2018-06-22 01:54:22,674 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:54:22 BoogieIcfgContainer [2018-06-22 01:54:22,674 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 01:54:22,676 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 01:54:22,676 INFO ]: Initializing TraceAbstraction... [2018-06-22 01:54:22,679 INFO ]: TraceAbstraction initialized [2018-06-22 01:54:22,680 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 01:54:21" (1/3) ... [2018-06-22 01:54:22,681 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78e5122a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 01:54:22, skipping insertion in model container [2018-06-22 01:54:22,681 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:54:21" (2/3) ... [2018-06-22 01:54:22,681 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78e5122a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 01:54:22, skipping insertion in model container [2018-06-22 01:54:22,681 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:54:22" (3/3) ... [2018-06-22 01:54:22,683 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 01:54:22,694 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 01:54:22,704 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 01:54:22,760 INFO ]: Using default assertion order modulation [2018-06-22 01:54:22,761 INFO ]: Interprodecural is true [2018-06-22 01:54:22,761 INFO ]: Hoare is false [2018-06-22 01:54:22,761 INFO ]: Compute interpolants for FPandBP [2018-06-22 01:54:22,761 INFO ]: Backedges is TWOTRACK [2018-06-22 01:54:22,761 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 01:54:22,761 INFO ]: Difference is false [2018-06-22 01:54:22,761 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 01:54:22,761 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 01:54:22,789 INFO ]: Start isEmpty. Operand 49 states. [2018-06-22 01:54:22,805 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-22 01:54:22,805 INFO ]: Found error trace [2018-06-22 01:54:22,807 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:54:22,807 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:54:22,814 INFO ]: Analyzing trace with hash 2058936398, now seen corresponding path program 1 times [2018-06-22 01:54:22,816 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:54:22,816 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:54:22,860 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:54:22,860 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:54:22,860 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:54:22,909 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:54:23,021 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 01:54:23,023 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 01:54:23,023 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 01:54:23,024 INFO ]: Interpolant automaton has 4 states [2018-06-22 01:54:23,054 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 01:54:23,054 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 01:54:23,058 INFO ]: Start difference. First operand 49 states. Second operand 4 states. [2018-06-22 01:54:24,587 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:54:24,587 INFO ]: Finished difference Result 91 states and 147 transitions. [2018-06-22 01:54:24,588 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 01:54:24,589 INFO ]: Start accepts. Automaton has 4 states. Word has length 8 [2018-06-22 01:54:24,589 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:54:24,604 INFO ]: With dead ends: 91 [2018-06-22 01:54:24,604 INFO ]: Without dead ends: 81 [2018-06-22 01:54:24,606 INFO ]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-22 01:54:24,625 INFO ]: Start minimizeSevpa. Operand 81 states. [2018-06-22 01:54:24,663 INFO ]: Finished minimizeSevpa. Reduced states from 81 to 81. [2018-06-22 01:54:24,664 INFO ]: Start removeUnreachable. Operand 81 states. [2018-06-22 01:54:24,668 INFO ]: Finished removeUnreachable. Reduced from 81 states to 81 states and 129 transitions. [2018-06-22 01:54:24,669 INFO ]: Start accepts. Automaton has 81 states and 129 transitions. Word has length 8 [2018-06-22 01:54:24,669 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:54:24,669 INFO ]: Abstraction has 81 states and 129 transitions. [2018-06-22 01:54:24,669 INFO ]: Interpolant automaton has 4 states. [2018-06-22 01:54:24,669 INFO ]: Start isEmpty. Operand 81 states and 129 transitions. [2018-06-22 01:54:24,672 INFO ]: Finished isEmpty. Found accepting run of length 15 [2018-06-22 01:54:24,672 INFO ]: Found error trace [2018-06-22 01:54:24,672 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:54:24,672 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:54:24,673 INFO ]: Analyzing trace with hash -1893630041, now seen corresponding path program 1 times [2018-06-22 01:54:24,673 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:54:24,673 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:54:24,673 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:54:24,673 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:54:24,673 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:54:24,689 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:54:24,763 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 01:54:24,763 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 01:54:24,763 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 01:54:24,765 INFO ]: Interpolant automaton has 4 states [2018-06-22 01:54:24,766 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 01:54:24,766 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 01:54:24,766 INFO ]: Start difference. First operand 81 states and 129 transitions. Second operand 4 states. [2018-06-22 01:54:25,132 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:54:25,132 INFO ]: Finished difference Result 105 states and 166 transitions. [2018-06-22 01:54:25,132 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 01:54:25,133 INFO ]: Start accepts. Automaton has 4 states. Word has length 14 [2018-06-22 01:54:25,133 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:54:25,142 INFO ]: With dead ends: 105 [2018-06-22 01:54:25,142 INFO ]: Without dead ends: 105 [2018-06-22 01:54:25,143 INFO ]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-22 01:54:25,143 INFO ]: Start minimizeSevpa. Operand 105 states. [2018-06-22 01:54:25,160 INFO ]: Finished minimizeSevpa. Reduced states from 105 to 105. [2018-06-22 01:54:25,160 INFO ]: Start removeUnreachable. Operand 105 states. [2018-06-22 01:54:25,164 INFO ]: Finished removeUnreachable. Reduced from 105 states to 105 states and 166 transitions. [2018-06-22 01:54:25,164 INFO ]: Start accepts. Automaton has 105 states and 166 transitions. Word has length 14 [2018-06-22 01:54:25,164 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:54:25,164 INFO ]: Abstraction has 105 states and 166 transitions. [2018-06-22 01:54:25,164 INFO ]: Interpolant automaton has 4 states. [2018-06-22 01:54:25,164 INFO ]: Start isEmpty. Operand 105 states and 166 transitions. [2018-06-22 01:54:25,170 INFO ]: Finished isEmpty. Found accepting run of length 25 [2018-06-22 01:54:25,170 INFO ]: Found error trace [2018-06-22 01:54:25,170 INFO ]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:54:25,170 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:54:25,171 INFO ]: Analyzing trace with hash 1767426683, now seen corresponding path program 1 times [2018-06-22 01:54:25,171 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:54:25,171 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:54:25,171 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:54:25,171 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:54:25,172 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:54:25,186 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:54:25,354 INFO ]: Checked inductivity of 6 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 01:54:25,354 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 01:54:25,354 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 01:54:25,369 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:54:25,417 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:54:25,423 INFO ]: Computing forward predicates... [2018-06-22 01:54:25,444 INFO ]: Checked inductivity of 6 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 01:54:25,467 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 01:54:25,467 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2018-06-22 01:54:25,467 INFO ]: Interpolant automaton has 4 states [2018-06-22 01:54:25,467 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 01:54:25,467 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 01:54:25,468 INFO ]: Start difference. First operand 105 states and 166 transitions. Second operand 4 states. [2018-06-22 01:54:25,654 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:54:25,655 INFO ]: Finished difference Result 129 states and 203 transitions. [2018-06-22 01:54:25,655 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 01:54:25,655 INFO ]: Start accepts. Automaton has 4 states. Word has length 24 [2018-06-22 01:54:25,655 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:54:25,658 INFO ]: With dead ends: 129 [2018-06-22 01:54:25,658 INFO ]: Without dead ends: 129 [2018-06-22 01:54:25,659 INFO ]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-22 01:54:25,659 INFO ]: Start minimizeSevpa. Operand 129 states. [2018-06-22 01:54:25,680 INFO ]: Finished minimizeSevpa. Reduced states from 129 to 129. [2018-06-22 01:54:25,680 INFO ]: Start removeUnreachable. Operand 129 states. [2018-06-22 01:54:25,684 INFO ]: Finished removeUnreachable. Reduced from 129 states to 129 states and 203 transitions. [2018-06-22 01:54:25,684 INFO ]: Start accepts. Automaton has 129 states and 203 transitions. Word has length 24 [2018-06-22 01:54:25,685 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:54:25,685 INFO ]: Abstraction has 129 states and 203 transitions. [2018-06-22 01:54:25,685 INFO ]: Interpolant automaton has 4 states. [2018-06-22 01:54:25,685 INFO ]: Start isEmpty. Operand 129 states and 203 transitions. [2018-06-22 01:54:25,705 INFO ]: Finished isEmpty. Found accepting run of length 27 [2018-06-22 01:54:25,705 INFO ]: Found error trace [2018-06-22 01:54:25,705 INFO ]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:54:25,705 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:54:25,705 INFO ]: Analyzing trace with hash -1718787159, now seen corresponding path program 1 times [2018-06-22 01:54:25,705 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:54:25,705 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:54:25,706 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:54:25,706 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:54:25,706 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:54:25,736 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:54:25,873 INFO ]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-06-22 01:54:25,873 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 01:54:25,873 INFO ]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-06-22 01:54:25,873 INFO ]: Interpolant automaton has 6 states [2018-06-22 01:54:25,873 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-22 01:54:25,873 INFO ]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-06-22 01:54:25,874 INFO ]: Start difference. First operand 129 states and 203 transitions. Second operand 6 states. [2018-06-22 01:54:26,592 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:54:26,593 INFO ]: Finished difference Result 231 states and 522 transitions. [2018-06-22 01:54:26,594 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-22 01:54:26,594 INFO ]: Start accepts. Automaton has 6 states. Word has length 26 [2018-06-22 01:54:26,594 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:54:26,610 INFO ]: With dead ends: 231 [2018-06-22 01:54:26,610 INFO ]: Without dead ends: 227 [2018-06-22 01:54:26,610 INFO ]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2018-06-22 01:54:26,610 INFO ]: Start minimizeSevpa. Operand 227 states. [2018-06-22 01:54:26,657 INFO ]: Finished minimizeSevpa. Reduced states from 227 to 137. [2018-06-22 01:54:26,657 INFO ]: Start removeUnreachable. Operand 137 states. [2018-06-22 01:54:26,660 INFO ]: Finished removeUnreachable. Reduced from 137 states to 137 states and 223 transitions. [2018-06-22 01:54:26,661 INFO ]: Start accepts. Automaton has 137 states and 223 transitions. Word has length 26 [2018-06-22 01:54:26,661 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:54:26,661 INFO ]: Abstraction has 137 states and 223 transitions. [2018-06-22 01:54:26,661 INFO ]: Interpolant automaton has 6 states. [2018-06-22 01:54:26,661 INFO ]: Start isEmpty. Operand 137 states and 223 transitions. [2018-06-22 01:54:26,664 INFO ]: Finished isEmpty. Found accepting run of length 28 [2018-06-22 01:54:26,664 INFO ]: Found error trace [2018-06-22 01:54:26,664 INFO ]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:54:26,665 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:54:26,665 INFO ]: Analyzing trace with hash -1638499555, now seen corresponding path program 1 times [2018-06-22 01:54:26,665 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:54:26,665 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:54:26,666 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:54:26,666 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:54:26,666 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:54:26,717 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:54:26,882 INFO ]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 01:54:26,883 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 01:54:26,883 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 01:54:26,883 INFO ]: Interpolant automaton has 4 states [2018-06-22 01:54:26,883 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 01:54:26,883 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 01:54:26,883 INFO ]: Start difference. First operand 137 states and 223 transitions. Second operand 4 states. [2018-06-22 01:54:27,009 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:54:27,009 INFO ]: Finished difference Result 165 states and 304 transitions. [2018-06-22 01:54:27,010 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 01:54:27,011 INFO ]: Start accepts. Automaton has 4 states. Word has length 27 [2018-06-22 01:54:27,011 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:54:27,015 INFO ]: With dead ends: 165 [2018-06-22 01:54:27,016 INFO ]: Without dead ends: 165 [2018-06-22 01:54:27,016 INFO ]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 01:54:27,016 INFO ]: Start minimizeSevpa. Operand 165 states. [2018-06-22 01:54:27,048 INFO ]: Finished minimizeSevpa. Reduced states from 165 to 137. [2018-06-22 01:54:27,048 INFO ]: Start removeUnreachable. Operand 137 states. [2018-06-22 01:54:27,054 INFO ]: Finished removeUnreachable. Reduced from 137 states to 137 states and 219 transitions. [2018-06-22 01:54:27,054 INFO ]: Start accepts. Automaton has 137 states and 219 transitions. Word has length 27 [2018-06-22 01:54:27,054 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:54:27,054 INFO ]: Abstraction has 137 states and 219 transitions. [2018-06-22 01:54:27,054 INFO ]: Interpolant automaton has 4 states. [2018-06-22 01:54:27,054 INFO ]: Start isEmpty. Operand 137 states and 219 transitions. [2018-06-22 01:54:27,058 INFO ]: Finished isEmpty. Found accepting run of length 28 [2018-06-22 01:54:27,058 INFO ]: Found error trace [2018-06-22 01:54:27,058 INFO ]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:54:27,058 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:54:27,059 INFO ]: Analyzing trace with hash 1911515169, now seen corresponding path program 1 times [2018-06-22 01:54:27,059 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:54:27,059 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:54:27,059 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:54:27,059 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:54:27,059 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:54:27,116 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:54:27,320 WARN ]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-06-22 01:54:27,322 INFO ]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 01:54:27,322 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 01:54:27,322 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-22 01:54:27,322 INFO ]: Interpolant automaton has 3 states [2018-06-22 01:54:27,322 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-22 01:54:27,322 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-22 01:54:27,322 INFO ]: Start difference. First operand 137 states and 219 transitions. Second operand 3 states. [2018-06-22 01:54:27,380 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:54:27,380 INFO ]: Finished difference Result 123 states and 191 transitions. [2018-06-22 01:54:27,382 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-22 01:54:27,382 INFO ]: Start accepts. Automaton has 3 states. Word has length 27 [2018-06-22 01:54:27,382 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:54:27,382 INFO ]: With dead ends: 123 [2018-06-22 01:54:27,382 INFO ]: Without dead ends: 0 [2018-06-22 01:54:27,382 INFO ]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-22 01:54:27,382 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-22 01:54:27,383 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-22 01:54:27,383 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-22 01:54:27,383 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-22 01:54:27,383 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2018-06-22 01:54:27,383 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:54:27,383 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-22 01:54:27,383 INFO ]: Interpolant automaton has 3 states. [2018-06-22 01:54:27,383 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-22 01:54:27,383 INFO ]: Finished isEmpty. No accepting run. [2018-06-22 01:54:27,387 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 01:54:27 BoogieIcfgContainer [2018-06-22 01:54:27,387 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 01:54:27,388 INFO ]: Toolchain (without parser) took 6010.80 ms. Allocated memory was 307.8 MB in the beginning and 345.5 MB in the end (delta: 37.7 MB). Free memory was 245.1 MB in the beginning and 257.7 MB in the end (delta: -12.6 MB). Peak memory consumption was 25.2 MB. Max. memory is 3.6 GB. [2018-06-22 01:54:27,388 INFO ]: SmtParser took 0.09 ms. Allocated memory is still 307.8 MB. Free memory is still 273.2 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 01:54:27,389 INFO ]: ChcToBoogie took 101.13 ms. Allocated memory is still 307.8 MB. Free memory was 244.1 MB in the beginning and 241.1 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. [2018-06-22 01:54:27,389 INFO ]: Boogie Preprocessor took 79.72 ms. Allocated memory is still 307.8 MB. Free memory was 241.1 MB in the beginning and 239.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 01:54:27,390 INFO ]: RCFGBuilder took 1100.17 ms. Allocated memory is still 307.8 MB. Free memory was 239.1 MB in the beginning and 201.0 MB in the end (delta: 38.1 MB). Peak memory consumption was 38.1 MB. Max. memory is 3.6 GB. [2018-06-22 01:54:27,390 INFO ]: TraceAbstraction took 4711.19 ms. Allocated memory was 307.8 MB in the beginning and 345.5 MB in the end (delta: 37.7 MB). Free memory was 201.0 MB in the beginning and 257.7 MB in the end (delta: -56.7 MB). There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 01:54:27,392 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 307.8 MB. Free memory is still 273.2 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 101.13 ms. Allocated memory is still 307.8 MB. Free memory was 244.1 MB in the beginning and 241.1 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 79.72 ms. Allocated memory is still 307.8 MB. Free memory was 241.1 MB in the beginning and 239.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 1100.17 ms. Allocated memory is still 307.8 MB. Free memory was 239.1 MB in the beginning and 201.0 MB in the end (delta: 38.1 MB). Peak memory consumption was 38.1 MB. Max. memory is 3.6 GB. * TraceAbstraction took 4711.19 ms. Allocated memory was 307.8 MB in the beginning and 345.5 MB in the end (delta: 37.7 MB). Free memory was 201.0 MB in the beginning and 257.7 MB in the end (delta: -56.7 MB). There was no memory consumed. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [UNKNOWN] : assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 49 locations, 1 error locations. SAFE Result, 4.6s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 3.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 425 SDtfs, 272 SDslu, 644 SDs, 0 SdLazy, 356 SolverSat, 173 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=137occurred 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: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 118 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 150 NumberOfCodeBlocks, 150 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 143 ConstructedInterpolants, 0 QuantifiedInterpolants, 5858 SizeOfPredicates, 1 NumberOfNonLiveVariables, 221 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 32/34 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/binomial02.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_01-54-27-402.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/binomial02.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_01-54-27-402.csv Received shutdown request...