java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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-ff8eab6 [2018-09-26 09:48:28,090 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-26 09:48:28,092 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-26 09:48:28,110 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-26 09:48:28,110 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-26 09:48:28,112 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-26 09:48:28,113 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-26 09:48:28,117 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-26 09:48:28,120 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-26 09:48:28,127 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-26 09:48:28,128 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-26 09:48:28,129 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-26 09:48:28,133 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-26 09:48:28,135 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-26 09:48:28,140 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-26 09:48:28,141 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-26 09:48:28,142 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-26 09:48:28,145 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-26 09:48:28,147 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-26 09:48:28,151 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-26 09:48:28,152 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-26 09:48:28,154 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-26 09:48:28,158 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-26 09:48:28,158 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-26 09:48:28,158 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-26 09:48:28,159 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-26 09:48:28,160 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-26 09:48:28,163 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-26 09:48:28,164 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-26 09:48:28,165 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-26 09:48:28,167 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-26 09:48:28,168 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-26 09:48:28,170 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-26 09:48:28,170 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-26 09:48:28,171 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-26 09:48:28,173 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-26 09:48:28,174 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/Pdr/AutomizerBpl-pdr-smtinterpol.epf [2018-09-26 09:48:28,188 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-26 09:48:28,188 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-26 09:48:28,191 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-26 09:48:28,191 INFO L133 SettingsManager]: * SMT solver=Internal_SMTInterpol [2018-09-26 09:48:28,192 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-26 09:48:28,192 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=PDR [2018-09-26 09:48:28,192 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-09-26 09:48:28,192 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-26 09:48:28,238 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-26 09:48:28,252 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-26 09:48:28,257 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-26 09:48:28,259 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-26 09:48:28,259 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-26 09:48:28,260 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/vogal.i_5.bpl [2018-09-26 09:48:28,260 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/vogal.i_5.bpl' [2018-09-26 09:48:28,323 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-26 09:48:28,326 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-26 09:48:28,327 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-26 09:48:28,328 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-26 09:48:28,328 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-26 09:48:28,347 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 26.09 09:48:28" (1/1) ... [2018-09-26 09:48:28,367 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 26.09 09:48:28" (1/1) ... [2018-09-26 09:48:28,375 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-26 09:48:28,376 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-26 09:48:28,376 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-26 09:48:28,376 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-26 09:48:28,387 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "vogal.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:48:28" (1/1) ... [2018-09-26 09:48:28,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "vogal.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:48:28" (1/1) ... [2018-09-26 09:48:28,391 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "vogal.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:48:28" (1/1) ... [2018-09-26 09:48:28,392 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "vogal.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:48:28" (1/1) ... [2018-09-26 09:48:28,399 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "vogal.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:48:28" (1/1) ... [2018-09-26 09:48:28,401 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "vogal.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:48:28" (1/1) ... [2018-09-26 09:48:28,407 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "vogal.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:48:28" (1/1) ... [2018-09-26 09:48:28,410 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-26 09:48:28,411 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-26 09:48:28,411 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-26 09:48:28,411 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-26 09:48:28,415 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "vogal.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:48:28" (1/1) ... [2018-09-26 09:48:28,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-26 09:48:28,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-26 09:48:28,817 INFO L346 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-26 09:48:28,819 INFO L202 PluginConnector]: Adding new model vogal.i_5.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 09:48:28 BoogieIcfgContainer [2018-09-26 09:48:28,820 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-26 09:48:28,821 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-26 09:48:28,822 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-26 09:48:28,828 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-26 09:48:28,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "vogal.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:48:28" (1/2) ... [2018-09-26 09:48:28,830 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46e69a7 and model type vogal.i_5.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.09 09:48:28, skipping insertion in model container [2018-09-26 09:48:28,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "vogal.i_5.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 09:48:28" (2/2) ... [2018-09-26 09:48:28,834 INFO L112 eAbstractionObserver]: Analyzing ICFG vogal.i_5.bpl [2018-09-26 09:48:28,846 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:PDR Determinization: PREDICATE_ABSTRACTION [2018-09-26 09:48:28,858 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-26 09:48:28,913 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-09-26 09:48:28,914 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-26 09:48:28,914 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-26 09:48:28,915 INFO L383 AbstractCegarLoop]: Compute interpolants for PDR [2018-09-26 09:48:28,915 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-26 09:48:28,915 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-26 09:48:28,915 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-26 09:48:28,916 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-26 09:48:28,916 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-26 09:48:28,931 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2018-09-26 09:48:28,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-09-26 09:48:28,940 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 09:48:28,941 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 09:48:28,943 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 09:48:28,949 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 09:48:28,950 INFO L82 PathProgramCache]: Analyzing trace with hash 148998095, now seen corresponding path program 1 times [2018-09-26 09:48:28,957 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 09:48:29,125 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 09:48:29,126 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-26 09:48:29,130 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-26 09:48:29,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-26 09:48:29,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-26 09:48:29,141 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 3 states. [2018-09-26 09:48:29,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 09:48:29,225 INFO L93 Difference]: Finished difference Result 21 states and 29 transitions. [2018-09-26 09:48:29,226 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-26 09:48:29,228 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-09-26 09:48:29,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 09:48:29,241 INFO L225 Difference]: With dead ends: 21 [2018-09-26 09:48:29,241 INFO L226 Difference]: Without dead ends: 15 [2018-09-26 09:48:29,246 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-26 09:48:29,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-09-26 09:48:29,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 13. [2018-09-26 09:48:29,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-09-26 09:48:29,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2018-09-26 09:48:29,290 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 16 transitions. Word has length 8 [2018-09-26 09:48:29,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 09:48:29,291 INFO L480 AbstractCegarLoop]: Abstraction has 13 states and 16 transitions. [2018-09-26 09:48:29,291 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-26 09:48:29,292 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2018-09-26 09:48:29,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-09-26 09:48:29,293 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 09:48:29,293 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 09:48:29,293 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 09:48:29,294 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 09:48:29,294 INFO L82 PathProgramCache]: Analyzing trace with hash 768493221, now seen corresponding path program 1 times [2018-09-26 09:48:29,294 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 09:48:29,584 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 09:48:29,584 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-26 09:48:29,587 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-26 09:48:29,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-26 09:48:29,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-09-26 09:48:29,590 INFO L87 Difference]: Start difference. First operand 13 states and 16 transitions. Second operand 4 states. [2018-09-26 09:48:29,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 09:48:29,743 INFO L93 Difference]: Finished difference Result 19 states and 23 transitions. [2018-09-26 09:48:29,743 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-26 09:48:29,744 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2018-09-26 09:48:29,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 09:48:29,745 INFO L225 Difference]: With dead ends: 19 [2018-09-26 09:48:29,745 INFO L226 Difference]: Without dead ends: 17 [2018-09-26 09:48:29,747 INFO L605 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 [2018-09-26 09:48:29,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-09-26 09:48:29,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2018-09-26 09:48:29,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-09-26 09:48:29,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 19 transitions. [2018-09-26 09:48:29,758 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 19 transitions. Word has length 12 [2018-09-26 09:48:29,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 09:48:29,760 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 19 transitions. [2018-09-26 09:48:29,760 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-26 09:48:29,760 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2018-09-26 09:48:29,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-26 09:48:29,761 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 09:48:29,761 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 09:48:29,763 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 09:48:29,763 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 09:48:29,765 INFO L82 PathProgramCache]: Analyzing trace with hash -144651777, now seen corresponding path program 1 times [2018-09-26 09:48:29,765 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 09:48:31,065 WARN L178 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2018-09-26 09:48:31,748 WARN L178 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2018-09-26 09:48:32,727 WARN L178 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2018-09-26 09:48:33,813 WARN L178 SmtUtils]: Spent 385.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2018-09-26 09:48:35,330 WARN L178 SmtUtils]: Spent 563.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2018-09-26 09:48:37,244 WARN L178 SmtUtils]: Spent 777.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2018-09-26 09:48:39,585 WARN L178 SmtUtils]: Spent 981.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2018-09-26 09:48:42,228 WARN L178 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 161 [2018-09-26 09:48:47,549 WARN L178 SmtUtils]: Spent 1.66 s on a formula simplification that was a NOOP. DAG size: 188 [2018-09-26 09:48:51,480 WARN L178 SmtUtils]: Spent 1.57 s on a formula simplification that was a NOOP. DAG size: 196 [2018-09-26 09:48:56,002 WARN L178 SmtUtils]: Spent 1.76 s on a formula simplification that was a NOOP. DAG size: 204 [2018-09-26 09:49:00,831 WARN L178 SmtUtils]: Spent 2.08 s on a formula simplification that was a NOOP. DAG size: 212 [2018-09-26 09:49:05,141 WARN L178 SmtUtils]: Spent 1.74 s on a formula simplification that was a NOOP. DAG size: 220 [2018-09-26 09:49:09,447 WARN L178 SmtUtils]: Spent 1.75 s on a formula simplification that was a NOOP. DAG size: 228 [2018-09-26 09:49:14,410 WARN L178 SmtUtils]: Spent 1.94 s on a formula simplification that was a NOOP. DAG size: 236 [2018-09-26 09:49:20,598 WARN L178 SmtUtils]: Spent 2.70 s on a formula simplification that was a NOOP. DAG size: 244 [2018-09-26 09:49:27,355 WARN L178 SmtUtils]: Spent 2.82 s on a formula simplification that was a NOOP. DAG size: 252 [2018-09-26 09:49:35,969 WARN L178 SmtUtils]: Spent 3.53 s on a formula simplification that was a NOOP. DAG size: 260 [2018-09-26 09:49:44,923 WARN L178 SmtUtils]: Spent 3.76 s on a formula simplification that was a NOOP. DAG size: 268 [2018-09-26 09:50:00,075 WARN L178 SmtUtils]: Spent 3.68 s on a formula simplification that was a NOOP. DAG size: 282 [2018-09-26 09:50:11,331 WARN L178 SmtUtils]: Spent 4.20 s on a formula simplification that was a NOOP. DAG size: 290 [2018-09-26 09:50:24,014 WARN L178 SmtUtils]: Spent 4.77 s on a formula simplification that was a NOOP. DAG size: 298 [2018-09-26 09:50:38,058 WARN L178 SmtUtils]: Spent 5.19 s on a formula simplification that was a NOOP. DAG size: 306 [2018-09-26 09:50:54,852 WARN L178 SmtUtils]: Spent 6.39 s on a formula simplification that was a NOOP. DAG size: 314 [2018-09-26 09:51:12,081 WARN L178 SmtUtils]: Spent 6.19 s on a formula simplification that was a NOOP. DAG size: 322 [2018-09-26 09:51:31,430 WARN L178 SmtUtils]: Spent 6.84 s on a formula simplification that was a NOOP. DAG size: 330 [2018-09-26 09:51:52,876 WARN L178 SmtUtils]: Spent 7.29 s on a formula simplification that was a NOOP. DAG size: 338 [2018-09-26 09:52:16,112 WARN L178 SmtUtils]: Spent 7.78 s on a formula simplification that was a NOOP. DAG size: 346 [2018-09-26 09:52:41,776 WARN L178 SmtUtils]: Spent 8.98 s on a formula simplification that was a NOOP. DAG size: 354 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown