java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/Pdr/AutomizerBpl-nestedInterpolants.epf -i ../../../trunk/examples/programs/20170304-DifficultPathPrograms/underapprox1.i_3.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-e6fd87c [2018-07-25 08:50:10,891 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-25 08:50:10,895 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-25 08:50:10,907 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-25 08:50:10,907 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-25 08:50:10,908 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-25 08:50:10,910 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-25 08:50:10,911 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-25 08:50:10,913 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-25 08:50:10,914 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-25 08:50:10,915 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-07-25 08:50:10,940 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/Pdr/AutomizerBpl-nestedInterpolants.epf [2018-07-25 08:50:10,954 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-25 08:50:10,954 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-25 08:50:10,955 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-25 08:50:10,956 INFO L133 SettingsManager]: * SMT solver=Internal_SMTInterpol [2018-07-25 08:50:10,956 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-25 08:50:10,956 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-07-25 08:50:10,956 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-07-25 08:50:10,956 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-25 08:50:11,013 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-25 08:50:11,029 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-25 08:50:11,036 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-25 08:50:11,038 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-25 08:50:11,039 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-25 08:50:11,040 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/underapprox1.i_3.bpl [2018-07-25 08:50:11,040 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/underapprox1.i_3.bpl' [2018-07-25 08:50:11,106 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-25 08:50:11,109 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-07-25 08:50:11,110 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-25 08:50:11,110 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-25 08:50:11,110 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-25 08:50:11,134 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "underapprox1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:50:11" (1/1) ... [2018-07-25 08:50:11,147 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "underapprox1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:50:11" (1/1) ... [2018-07-25 08:50:11,155 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-25 08:50:11,156 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-25 08:50:11,156 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-25 08:50:11,156 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-25 08:50:11,169 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "underapprox1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:50:11" (1/1) ... [2018-07-25 08:50:11,169 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "underapprox1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:50:11" (1/1) ... [2018-07-25 08:50:11,170 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "underapprox1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:50:11" (1/1) ... [2018-07-25 08:50:11,170 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "underapprox1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:50:11" (1/1) ... [2018-07-25 08:50:11,175 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "underapprox1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:50:11" (1/1) ... [2018-07-25 08:50:11,178 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "underapprox1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:50:11" (1/1) ... [2018-07-25 08:50:11,179 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "underapprox1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:50:11" (1/1) ... [2018-07-25 08:50:11,181 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-25 08:50:11,182 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-25 08:50:11,183 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-25 08:50:11,183 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-25 08:50:11,184 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "underapprox1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:50:11" (1/1) ... [2018-07-25 08:50:11,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-25 08:50:11,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-25 08:50:11,435 INFO L273 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-25 08:50:11,436 INFO L202 PluginConnector]: Adding new model underapprox1.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.07 08:50:11 BoogieIcfgContainer [2018-07-25 08:50:11,436 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-25 08:50:11,437 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-25 08:50:11,437 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-25 08:50:11,441 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-25 08:50:11,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "underapprox1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:50:11" (1/2) ... [2018-07-25 08:50:11,442 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@464fd329 and model type underapprox1.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.07 08:50:11, skipping insertion in model container [2018-07-25 08:50:11,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "underapprox1.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.07 08:50:11" (2/2) ... [2018-07-25 08:50:11,445 INFO L112 eAbstractionObserver]: Analyzing ICFG underapprox1.i_3.bpl [2018-07-25 08:50:11,455 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-07-25 08:50:11,463 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-25 08:50:11,509 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-25 08:50:11,510 INFO L374 AbstractCegarLoop]: Interprodecural is true [2018-07-25 08:50:11,510 INFO L375 AbstractCegarLoop]: Hoare is true [2018-07-25 08:50:11,510 INFO L376 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-07-25 08:50:11,511 INFO L377 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-25 08:50:11,511 INFO L378 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-25 08:50:11,511 INFO L379 AbstractCegarLoop]: Difference is false [2018-07-25 08:50:11,511 INFO L380 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-25 08:50:11,511 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-25 08:50:11,526 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2018-07-25 08:50:11,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-07-25 08:50:11,535 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:50:11,535 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-07-25 08:50:11,536 INFO L415 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:50:11,541 INFO L82 PathProgramCache]: Analyzing trace with hash 925639, now seen corresponding path program 1 times [2018-07-25 08:50:11,546 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:50:11,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:50:11,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:50:11,630 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:50:11,630 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-25 08:50:11,634 INFO L451 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-25 08:50:11,646 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-25 08:50:11,646 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-25 08:50:11,648 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 3 states. [2018-07-25 08:50:11,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:50:11,679 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2018-07-25 08:50:11,680 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-25 08:50:11,681 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2018-07-25 08:50:11,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:50:11,693 INFO L225 Difference]: With dead ends: 10 [2018-07-25 08:50:11,693 INFO L226 Difference]: Without dead ends: 7 [2018-07-25 08:50:11,697 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-25 08:50:11,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2018-07-25 08:50:11,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-07-25 08:50:11,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-07-25 08:50:11,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-07-25 08:50:11,736 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2018-07-25 08:50:11,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:50:11,737 INFO L472 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-07-25 08:50:11,737 INFO L473 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-25 08:50:11,737 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-07-25 08:50:11,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-25 08:50:11,737 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:50:11,738 INFO L354 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2018-07-25 08:50:11,738 INFO L415 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:50:11,738 INFO L82 PathProgramCache]: Analyzing trace with hash 889591169, now seen corresponding path program 1 times [2018-07-25 08:50:11,739 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:50:11,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:50:11,785 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:50:11,785 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-25 08:50:11,786 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2018-07-25 08:50:11,788 INFO L451 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-25 08:50:11,788 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-25 08:50:11,788 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-25 08:50:11,789 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 4 states. [2018-07-25 08:50:11,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:50:11,811 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2018-07-25 08:50:11,812 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-25 08:50:11,812 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2018-07-25 08:50:11,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:50:11,812 INFO L225 Difference]: With dead ends: 11 [2018-07-25 08:50:11,813 INFO L226 Difference]: Without dead ends: 9 [2018-07-25 08:50:11,814 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-25 08:50:11,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2018-07-25 08:50:11,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-07-25 08:50:11,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-07-25 08:50:11,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-07-25 08:50:11,818 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 6 [2018-07-25 08:50:11,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:50:11,819 INFO L472 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2018-07-25 08:50:11,819 INFO L473 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-25 08:50:11,819 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2018-07-25 08:50:11,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-07-25 08:50:11,820 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:50:11,820 INFO L354 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1] [2018-07-25 08:50:11,820 INFO L415 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:50:11,821 INFO L82 PathProgramCache]: Analyzing trace with hash 198673595, now seen corresponding path program 2 times [2018-07-25 08:50:11,821 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:50:11,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:50:11,892 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:50:11,893 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-25 08:50:11,893 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2018-07-25 08:50:11,893 INFO L451 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-25 08:50:11,894 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-25 08:50:11,894 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-25 08:50:11,894 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 5 states. [2018-07-25 08:50:11,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:50:11,921 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2018-07-25 08:50:11,921 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-25 08:50:11,922 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2018-07-25 08:50:11,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:50:11,923 INFO L225 Difference]: With dead ends: 13 [2018-07-25 08:50:11,923 INFO L226 Difference]: Without dead ends: 11 [2018-07-25 08:50:11,924 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-25 08:50:11,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2018-07-25 08:50:11,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-07-25 08:50:11,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-07-25 08:50:11,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2018-07-25 08:50:11,928 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 8 [2018-07-25 08:50:11,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:50:11,929 INFO L472 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2018-07-25 08:50:11,929 INFO L473 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-25 08:50:11,929 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2018-07-25 08:50:11,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-07-25 08:50:11,930 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:50:11,930 INFO L354 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1] [2018-07-25 08:50:11,930 INFO L415 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:50:11,931 INFO L82 PathProgramCache]: Analyzing trace with hash 1946815861, now seen corresponding path program 3 times [2018-07-25 08:50:11,931 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:50:11,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:50:11,989 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:50:11,990 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-25 08:50:11,990 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2018-07-25 08:50:11,990 INFO L451 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-25 08:50:11,991 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-25 08:50:11,991 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-07-25 08:50:11,992 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand 6 states. [2018-07-25 08:50:12,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:50:12,053 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2018-07-25 08:50:12,054 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-25 08:50:12,054 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2018-07-25 08:50:12,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:50:12,054 INFO L225 Difference]: With dead ends: 15 [2018-07-25 08:50:12,055 INFO L226 Difference]: Without dead ends: 13 [2018-07-25 08:50:12,055 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-07-25 08:50:12,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2018-07-25 08:50:12,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-07-25 08:50:12,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-07-25 08:50:12,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2018-07-25 08:50:12,060 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 10 [2018-07-25 08:50:12,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:50:12,061 INFO L472 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2018-07-25 08:50:12,061 INFO L473 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-25 08:50:12,061 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2018-07-25 08:50:12,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-07-25 08:50:12,062 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:50:12,062 INFO L354 BasicCegarLoop]: trace histogram [5, 4, 1, 1, 1] [2018-07-25 08:50:12,062 INFO L415 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:50:12,063 INFO L82 PathProgramCache]: Analyzing trace with hash -1715646545, now seen corresponding path program 4 times [2018-07-25 08:50:12,063 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:50:12,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:50:12,188 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:50:12,188 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-25 08:50:12,189 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2018-07-25 08:50:12,189 INFO L451 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-25 08:50:12,191 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-25 08:50:12,192 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-07-25 08:50:12,192 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 7 states. [2018-07-25 08:50:12,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:50:12,246 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2018-07-25 08:50:12,247 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-25 08:50:12,247 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 12 [2018-07-25 08:50:12,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:50:12,248 INFO L225 Difference]: With dead ends: 17 [2018-07-25 08:50:12,248 INFO L226 Difference]: Without dead ends: 15 [2018-07-25 08:50:12,250 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-07-25 08:50:12,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-07-25 08:50:12,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-07-25 08:50:12,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-07-25 08:50:12,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2018-07-25 08:50:12,266 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 12 [2018-07-25 08:50:12,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:50:12,266 INFO L472 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2018-07-25 08:50:12,267 INFO L473 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-25 08:50:12,267 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2018-07-25 08:50:12,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-07-25 08:50:12,268 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:50:12,268 INFO L354 BasicCegarLoop]: trace histogram [6, 5, 1, 1, 1] [2018-07-25 08:50:12,271 INFO L415 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:50:12,271 INFO L82 PathProgramCache]: Analyzing trace with hash 531164009, now seen corresponding path program 5 times [2018-07-25 08:50:12,272 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:50:12,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:50:12,382 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:50:12,383 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-25 08:50:12,383 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2018-07-25 08:50:12,384 INFO L451 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-25 08:50:12,384 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-25 08:50:12,384 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-07-25 08:50:12,385 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 8 states. [2018-07-25 08:50:12,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:50:12,474 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2018-07-25 08:50:12,475 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-25 08:50:12,475 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2018-07-25 08:50:12,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:50:12,476 INFO L225 Difference]: With dead ends: 19 [2018-07-25 08:50:12,476 INFO L226 Difference]: Without dead ends: 17 [2018-07-25 08:50:12,480 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-07-25 08:50:12,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-07-25 08:50:12,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-07-25 08:50:12,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-07-25 08:50:12,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2018-07-25 08:50:12,494 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 14 [2018-07-25 08:50:12,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:50:12,495 INFO L472 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2018-07-25 08:50:12,495 INFO L473 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-25 08:50:12,495 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2018-07-25 08:50:12,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-07-25 08:50:12,496 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:50:12,496 INFO L354 BasicCegarLoop]: trace histogram [7, 6, 1, 1, 1] [2018-07-25 08:50:12,498 INFO L415 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:50:12,499 INFO L82 PathProgramCache]: Analyzing trace with hash -652443485, now seen corresponding path program 6 times [2018-07-25 08:50:12,499 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:50:12,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-07-25 08:50:12,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-07-25 08:50:12,549 INFO L420 BasicCegarLoop]: Counterexample might be feasible [2018-07-25 08:50:12,578 INFO L202 PluginConnector]: Adding new model underapprox1.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.07 08:50:12 BoogieIcfgContainer [2018-07-25 08:50:12,580 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-25 08:50:12,581 INFO L168 Benchmark]: Toolchain (without parser) took 1474.13 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 63.4 MB). Peak memory consumption was 63.4 MB. Max. memory is 7.1 GB. [2018-07-25 08:50:12,584 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-25 08:50:12,585 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.49 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-25 08:50:12,585 INFO L168 Benchmark]: Boogie Preprocessor took 25.81 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-25 08:50:12,586 INFO L168 Benchmark]: RCFGBuilder took 253.84 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-07-25 08:50:12,589 INFO L168 Benchmark]: TraceAbstraction took 1143.03 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. [2018-07-25 08:50:12,594 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 45.49 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.81 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 253.84 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1143.03 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 36]: assertion can be violated assertion can be violated We found a FailurePath: [L10] havoc main_#res; [L11] havoc main_#t~post0, main_~x~4, main_~y~4; [L12] main_~x~4 := 0; [L13] main_~y~4 := 1; VAL [main_~x~4=0, main_~y~4=1] [L16] assume true; VAL [main_~x~4=0, main_~y~4=1] [L29] assume !!(main_~x~4 % 4294967296 < 6); [L30] main_#t~post0 := main_~x~4; [L31] main_~x~4 := main_#t~post0 + 1; [L32] havoc main_#t~post0; [L33] main_~y~4 := main_~y~4 * 2; VAL [main_~x~4=1, main_~y~4=2] [L16] assume true; VAL [main_~x~4=1, main_~y~4=2] [L29] assume !!(main_~x~4 % 4294967296 < 6); [L30] main_#t~post0 := main_~x~4; [L31] main_~x~4 := main_#t~post0 + 1; [L32] havoc main_#t~post0; [L33] main_~y~4 := main_~y~4 * 2; VAL [main_~x~4=2, main_~y~4=4] [L16] assume true; VAL [main_~x~4=2, main_~y~4=4] [L29] assume !!(main_~x~4 % 4294967296 < 6); [L30] main_#t~post0 := main_~x~4; [L31] main_~x~4 := main_#t~post0 + 1; [L32] havoc main_#t~post0; [L33] main_~y~4 := main_~y~4 * 2; VAL [main_~x~4=3, main_~y~4=8] [L16] assume true; VAL [main_~x~4=3, main_~y~4=8] [L29] assume !!(main_~x~4 % 4294967296 < 6); [L30] main_#t~post0 := main_~x~4; [L31] main_~x~4 := main_#t~post0 + 1; [L32] havoc main_#t~post0; [L33] main_~y~4 := main_~y~4 * 2; VAL [main_~x~4=4, main_~y~4=16] [L16] assume true; VAL [main_~x~4=4, main_~y~4=16] [L29] assume !!(main_~x~4 % 4294967296 < 6); [L30] main_#t~post0 := main_~x~4; [L31] main_~x~4 := main_#t~post0 + 1; [L32] havoc main_#t~post0; [L33] main_~y~4 := main_~y~4 * 2; VAL [main_~x~4=5, main_~y~4=32] [L16] assume true; VAL [main_~x~4=5, main_~y~4=32] [L29] assume !!(main_~x~4 % 4294967296 < 6); [L30] main_#t~post0 := main_~x~4; [L31] main_~x~4 := main_#t~post0 + 1; [L32] havoc main_#t~post0; [L33] main_~y~4 := main_~y~4 * 2; VAL [main_~x~4=6, main_~y~4=64] [L16] assume true; VAL [main_~x~4=6, main_~y~4=64] [L21] assume !(main_~x~4 % 4294967296 < 6); [L22] __VERIFIER_assert_#in~cond := (if main_~y~4 % 4294967296 != 64 then 1 else 0); [L23] havoc __VERIFIER_assert_~cond; [L24] __VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; [L25] assume __VERIFIER_assert_~cond == 0; [L26] assume !false; VAL [__VERIFIER_assert_#in~cond=0, __VERIFIER_assert_~cond=0, main_~x~4=6, main_~y~4=64] [L36] assert false; VAL [__VERIFIER_assert_#in~cond=0, __VERIFIER_assert_~cond=0, main_~x~4=6, main_~y~4=64] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. UNSAFE Result, 1.0s OverallTime, 7 OverallIterations, 7 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 39 SDtfs, 0 SDslu, 92 SDs, 0 SdLazy, 133 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=6, 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, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 70 NumberOfCodeBlocks, 70 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 2890 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 1 PerfectInterpolantSequences, 0/70 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/underapprox1.i_3.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-07-25_08-50-12-615.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/underapprox1.i_3.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-25_08-50-12-615.csv Received shutdown request...