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-pdr-smtinterpol.epf -i ../../../trunk/examples/programs/20170304-DifficultPathPrograms/vogal.i_5.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-e6fd87c [2018-07-25 14:53:31,307 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-25 14:53:31,311 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-25 14:53:31,329 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-25 14:53:31,330 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-25 14:53:31,331 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-25 14:53:31,332 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-25 14:53:31,334 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-25 14:53:31,336 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-25 14:53:31,337 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-25 14:53:31,338 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-25 14:53:31,338 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-25 14:53:31,339 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-25 14:53:31,340 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-25 14:53:31,341 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-25 14:53:31,342 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-25 14:53:31,343 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-25 14:53:31,345 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-25 14:53:31,347 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-25 14:53:31,349 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-25 14:53:31,350 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-25 14:53:31,352 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-25 14:53:31,355 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-25 14:53:31,355 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-25 14:53:31,355 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-25 14:53:31,356 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-25 14:53:31,358 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-25 14:53:31,359 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-25 14:53:31,360 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-25 14:53:31,362 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-25 14:53:31,362 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-25 14:53:31,363 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-25 14:53:31,363 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-25 14:53:31,363 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-25 14:53:31,365 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-25 14:53:31,366 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-25 14:53:31,366 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/Pdr/AutomizerBpl-pdr-smtinterpol.epf [2018-07-25 14:53:31,376 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-25 14:53:31,376 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-25 14:53:31,378 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-25 14:53:31,378 INFO L133 SettingsManager]: * SMT solver=Internal_SMTInterpol [2018-07-25 14:53:31,378 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-25 14:53:31,378 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=PDR [2018-07-25 14:53:31,379 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-07-25 14:53:31,379 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-25 14:53:31,426 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-25 14:53:31,446 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-25 14:53:31,454 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-25 14:53:31,456 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-25 14:53:31,456 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-25 14:53:31,458 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/vogal.i_5.bpl [2018-07-25 14:53:31,459 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/vogal.i_5.bpl' [2018-07-25 14:53:31,516 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-25 14:53:31,518 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-07-25 14:53:31,519 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-25 14:53:31,519 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-25 14:53:31,519 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-25 14:53:31,540 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "vogal.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:53:31" (1/1) ... [2018-07-25 14:53:31,559 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "vogal.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:53:31" (1/1) ... [2018-07-25 14:53:31,566 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-25 14:53:31,568 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-25 14:53:31,568 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-25 14:53:31,568 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-25 14:53:31,580 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "vogal.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:53:31" (1/1) ... [2018-07-25 14:53:31,580 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "vogal.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:53:31" (1/1) ... [2018-07-25 14:53:31,582 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "vogal.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:53:31" (1/1) ... [2018-07-25 14:53:31,583 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "vogal.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:53:31" (1/1) ... [2018-07-25 14:53:31,591 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "vogal.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:53:31" (1/1) ... [2018-07-25 14:53:31,600 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "vogal.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:53:31" (1/1) ... [2018-07-25 14:53:31,601 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "vogal.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:53:31" (1/1) ... [2018-07-25 14:53:31,611 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-25 14:53:31,612 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-25 14:53:31,612 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-25 14:53:31,612 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-25 14:53:31,615 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "vogal.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:53:31" (1/1) ... [2018-07-25 14:53:31,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-25 14:53:31,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-25 14:53:32,008 INFO L273 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-25 14:53:32,009 INFO L202 PluginConnector]: Adding new model vogal.i_5.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.07 02:53:32 BoogieIcfgContainer [2018-07-25 14:53:32,009 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-25 14:53:32,010 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-25 14:53:32,010 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-25 14:53:32,014 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-25 14:53:32,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "vogal.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:53:31" (1/2) ... [2018-07-25 14:53:32,016 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c0f01d4 and model type vogal.i_5.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.07 02:53:32, skipping insertion in model container [2018-07-25 14:53:32,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "vogal.i_5.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.07 02:53:32" (2/2) ... [2018-07-25 14:53:32,020 INFO L112 eAbstractionObserver]: Analyzing ICFG vogal.i_5.bpl [2018-07-25 14:53:32,031 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:PDR Determinization: PREDICATE_ABSTRACTION [2018-07-25 14:53:32,041 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-25 14:53:32,087 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-25 14:53:32,088 INFO L374 AbstractCegarLoop]: Interprodecural is true [2018-07-25 14:53:32,088 INFO L375 AbstractCegarLoop]: Hoare is true [2018-07-25 14:53:32,088 INFO L376 AbstractCegarLoop]: Compute interpolants for PDR [2018-07-25 14:53:32,089 INFO L377 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-25 14:53:32,089 INFO L378 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-25 14:53:32,089 INFO L379 AbstractCegarLoop]: Difference is false [2018-07-25 14:53:32,089 INFO L380 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-25 14:53:32,089 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-25 14:53:32,105 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2018-07-25 14:53:32,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-07-25 14:53:32,115 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 14:53:32,116 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-07-25 14:53:32,118 INFO L415 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 14:53:32,124 INFO L82 PathProgramCache]: Analyzing trace with hash 148998095, now seen corresponding path program 1 times [2018-07-25 14:53:32,132 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 14:53:32,346 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 14:53:32,347 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-25 14:53:32,351 INFO L451 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-25 14:53:32,358 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-25 14:53:32,358 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-25 14:53:32,361 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 3 states. [2018-07-25 14:53:32,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 14:53:32,463 INFO L93 Difference]: Finished difference Result 21 states and 29 transitions. [2018-07-25 14:53:32,463 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-25 14:53:32,465 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-07-25 14:53:32,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 14:53:32,480 INFO L225 Difference]: With dead ends: 21 [2018-07-25 14:53:32,481 INFO L226 Difference]: Without dead ends: 15 [2018-07-25 14:53:32,489 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-25 14:53:32,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-07-25 14:53:32,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 13. [2018-07-25 14:53:32,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-07-25 14:53:32,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2018-07-25 14:53:32,546 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 16 transitions. Word has length 8 [2018-07-25 14:53:32,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 14:53:32,547 INFO L472 AbstractCegarLoop]: Abstraction has 13 states and 16 transitions. [2018-07-25 14:53:32,547 INFO L473 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-25 14:53:32,547 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2018-07-25 14:53:32,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-07-25 14:53:32,548 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 14:53:32,548 INFO L354 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-25 14:53:32,549 INFO L415 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 14:53:32,551 INFO L82 PathProgramCache]: Analyzing trace with hash 768493221, now seen corresponding path program 1 times [2018-07-25 14:53:32,552 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 14:53:32,923 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 14:53:32,923 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-25 14:53:32,926 INFO L451 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-25 14:53:32,927 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-25 14:53:32,927 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-07-25 14:53:32,928 INFO L87 Difference]: Start difference. First operand 13 states and 16 transitions. Second operand 4 states. [2018-07-25 14:53:33,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 14:53:33,078 INFO L93 Difference]: Finished difference Result 19 states and 23 transitions. [2018-07-25 14:53:33,079 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-25 14:53:33,079 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2018-07-25 14:53:33,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 14:53:33,080 INFO L225 Difference]: With dead ends: 19 [2018-07-25 14:53:33,080 INFO L226 Difference]: Without dead ends: 17 [2018-07-25 14:53:33,082 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-07-25 14:53:33,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-07-25 14:53:33,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2018-07-25 14:53:33,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-07-25 14:53:33,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 19 transitions. [2018-07-25 14:53:33,089 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 19 transitions. Word has length 12 [2018-07-25 14:53:33,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 14:53:33,090 INFO L472 AbstractCegarLoop]: Abstraction has 15 states and 19 transitions. [2018-07-25 14:53:33,090 INFO L473 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-25 14:53:33,090 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2018-07-25 14:53:33,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-07-25 14:53:33,091 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 14:53:33,091 INFO L354 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-25 14:53:33,092 INFO L415 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 14:53:33,093 INFO L82 PathProgramCache]: Analyzing trace with hash -144651777, now seen corresponding path program 1 times [2018-07-25 14:53:33,093 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 14:53:33,836 WARN L169 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2018-07-25 14:53:34,365 WARN L169 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2018-07-25 14:53:35,061 WARN L169 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2018-07-25 14:53:36,135 WARN L169 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2018-07-25 14:53:37,326 WARN L169 SmtUtils]: Spent 435.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2018-07-25 14:53:38,973 WARN L169 SmtUtils]: Spent 645.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2018-07-25 14:53:41,164 WARN L169 SmtUtils]: Spent 921.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2018-07-25 14:53:43,841 WARN L169 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 151 [2018-07-25 14:53:46,534 WARN L169 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 161 [2018-07-25 14:53:51,607 WARN L169 SmtUtils]: Spent 1.58 s on a formula simplification that was a NOOP. DAG size: 188 [2018-07-25 14:53:55,592 WARN L169 SmtUtils]: Spent 1.67 s on a formula simplification that was a NOOP. DAG size: 196 [2018-07-25 14:54:00,289 WARN L169 SmtUtils]: Spent 1.93 s on a formula simplification that was a NOOP. DAG size: 204 [2018-07-25 14:54:05,338 WARN L169 SmtUtils]: Spent 2.05 s on a formula simplification that was a NOOP. DAG size: 212 [2018-07-25 14:54:10,176 WARN L169 SmtUtils]: Spent 2.18 s on a formula simplification that was a NOOP. DAG size: 220 [2018-07-25 14:54:14,855 WARN L169 SmtUtils]: Spent 1.73 s on a formula simplification that was a NOOP. DAG size: 228 [2018-07-25 14:54:20,309 WARN L169 SmtUtils]: Spent 2.08 s on a formula simplification that was a NOOP. DAG size: 236 [2018-07-25 14:54:27,079 WARN L169 SmtUtils]: Spent 2.74 s on a formula simplification that was a NOOP. DAG size: 244 [2018-07-25 14:54:34,504 WARN L169 SmtUtils]: Spent 2.89 s on a formula simplification that was a NOOP. DAG size: 252 [2018-07-25 14:54:44,684 WARN L169 SmtUtils]: Spent 4.69 s on a formula simplification that was a NOOP. DAG size: 260 [2018-07-25 14:54:54,754 WARN L169 SmtUtils]: Spent 4.15 s on a formula simplification that was a NOOP. DAG size: 268 [2018-07-25 14:55:12,073 WARN L169 SmtUtils]: Spent 4.02 s on a formula simplification that was a NOOP. DAG size: 282 [2018-07-25 14:55:24,978 WARN L169 SmtUtils]: Spent 4.83 s on a formula simplification that was a NOOP. DAG size: 290 [2018-07-25 14:55:39,357 WARN L169 SmtUtils]: Spent 5.10 s on a formula simplification that was a NOOP. DAG size: 298 [2018-07-25 14:55:55,328 WARN L169 SmtUtils]: Spent 5.53 s on a formula simplification that was a NOOP. DAG size: 306 [2018-07-25 14:56:13,402 WARN L169 SmtUtils]: Spent 6.50 s on a formula simplification that was a NOOP. DAG size: 314 [2018-07-25 14:56:33,153 WARN L169 SmtUtils]: Spent 6.74 s on a formula simplification that was a NOOP. DAG size: 322 [2018-07-25 14:56:54,399 WARN L169 SmtUtils]: Spent 7.05 s on a formula simplification that was a NOOP. DAG size: 330 [2018-07-25 14:57:16,392 WARN L169 SmtUtils]: Spent 7.40 s on a formula simplification that was a NOOP. DAG size: 338 [2018-07-25 14:57:39,602 WARN L169 SmtUtils]: Spent 7.68 s on a formula simplification that was a NOOP. DAG size: 346 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown