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/count_by_k.i_3.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ff8eab6 [2018-09-26 09:35:33,661 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-26 09:35:33,663 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-26 09:35:33,675 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-26 09:35:33,676 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-26 09:35:33,677 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-26 09:35:33,678 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-26 09:35:33,680 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-26 09:35:33,682 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-26 09:35:33,683 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-26 09:35:33,684 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-26 09:35:33,684 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-26 09:35:33,685 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-26 09:35:33,688 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-26 09:35:33,689 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-26 09:35:33,693 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-26 09:35:33,694 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-26 09:35:33,701 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-26 09:35:33,703 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-26 09:35:33,706 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-26 09:35:33,709 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-26 09:35:33,710 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-26 09:35:33,714 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-26 09:35:33,715 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-26 09:35:33,715 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-26 09:35:33,717 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-26 09:35:33,718 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-26 09:35:33,718 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-26 09:35:33,719 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-26 09:35:33,720 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-26 09:35:33,720 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-26 09:35:33,721 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-26 09:35:33,721 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-26 09:35:33,722 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-26 09:35:33,723 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-26 09:35:33,723 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-26 09:35:33,724 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 09:35:33,732 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-26 09:35:33,732 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-26 09:35:33,734 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-26 09:35:33,734 INFO L133 SettingsManager]: * SMT solver=Internal_SMTInterpol [2018-09-26 09:35:33,734 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-26 09:35:33,735 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=PDR [2018-09-26 09:35:33,735 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-09-26 09:35:33,735 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-26 09:35:33,807 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-26 09:35:33,836 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-26 09:35:33,842 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-26 09:35:33,844 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-26 09:35:33,845 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-26 09:35:33,845 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/count_by_k.i_3.bpl [2018-09-26 09:35:33,846 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/count_by_k.i_3.bpl' [2018-09-26 09:35:33,906 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-26 09:35:33,910 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-26 09:35:33,911 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-26 09:35:33,911 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-26 09:35:33,911 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-26 09:35:33,931 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "count_by_k.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:35:33" (1/1) ... [2018-09-26 09:35:33,944 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "count_by_k.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:35:33" (1/1) ... [2018-09-26 09:35:33,952 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-26 09:35:33,953 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-26 09:35:33,953 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-26 09:35:33,953 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-26 09:35:33,965 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "count_by_k.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:35:33" (1/1) ... [2018-09-26 09:35:33,965 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "count_by_k.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:35:33" (1/1) ... [2018-09-26 09:35:33,966 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "count_by_k.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:35:33" (1/1) ... [2018-09-26 09:35:33,966 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "count_by_k.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:35:33" (1/1) ... [2018-09-26 09:35:33,969 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "count_by_k.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:35:33" (1/1) ... [2018-09-26 09:35:33,971 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "count_by_k.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:35:33" (1/1) ... [2018-09-26 09:35:33,972 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "count_by_k.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:35:33" (1/1) ... [2018-09-26 09:35:33,973 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-26 09:35:33,974 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-26 09:35:33,974 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-26 09:35:33,974 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-26 09:35:33,975 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "count_by_k.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:35:33" (1/1) ... [2018-09-26 09:35:34,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-26 09:35:34,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-26 09:35:34,235 INFO L346 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-26 09:35:34,238 INFO L202 PluginConnector]: Adding new model count_by_k.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 09:35:34 BoogieIcfgContainer [2018-09-26 09:35:34,238 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-26 09:35:34,240 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-26 09:35:34,240 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-26 09:35:34,244 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-26 09:35:34,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "count_by_k.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:35:33" (1/2) ... [2018-09-26 09:35:34,246 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22e027e7 and model type count_by_k.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.09 09:35:34, skipping insertion in model container [2018-09-26 09:35:34,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "count_by_k.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 09:35:34" (2/2) ... [2018-09-26 09:35:34,250 INFO L112 eAbstractionObserver]: Analyzing ICFG count_by_k.i_3.bpl [2018-09-26 09:35:34,262 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:PDR Determinization: PREDICATE_ABSTRACTION [2018-09-26 09:35:34,274 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-26 09:35:34,326 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-09-26 09:35:34,327 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-26 09:35:34,327 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-26 09:35:34,328 INFO L383 AbstractCegarLoop]: Compute interpolants for PDR [2018-09-26 09:35:34,328 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-26 09:35:34,328 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-26 09:35:34,328 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-26 09:35:34,329 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-26 09:35:34,329 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-26 09:35:34,346 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2018-09-26 09:35:34,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-09-26 09:35:34,356 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 09:35:34,357 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-09-26 09:35:34,359 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 09:35:34,366 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 09:35:34,366 INFO L82 PathProgramCache]: Analyzing trace with hash 925639, now seen corresponding path program 1 times [2018-09-26 09:35:34,373 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 09:35:34,536 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 09:35:34,537 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-26 09:35:34,542 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-26 09:35:34,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-26 09:35:34,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-26 09:35:34,553 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 3 states. [2018-09-26 09:35:34,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 09:35:34,587 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2018-09-26 09:35:34,588 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-26 09:35:34,593 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2018-09-26 09:35:34,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 09:35:34,607 INFO L225 Difference]: With dead ends: 10 [2018-09-26 09:35:34,607 INFO L226 Difference]: Without dead ends: 7 [2018-09-26 09:35:34,611 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 38 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 09:35:34,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2018-09-26 09:35:34,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-09-26 09:35:34,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-09-26 09:35:34,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-09-26 09:35:34,651 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2018-09-26 09:35:34,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 09:35:34,652 INFO L480 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-09-26 09:35:34,652 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-26 09:35:34,652 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-09-26 09:35:34,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-09-26 09:35:34,653 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 09:35:34,653 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2018-09-26 09:35:34,654 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 09:35:34,654 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 09:35:34,655 INFO L82 PathProgramCache]: Analyzing trace with hash 889591169, now seen corresponding path program 1 times [2018-09-26 09:35:34,655 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 09:35:38,585 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2018-09-26 09:35:39,341 WARN L178 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2018-09-26 09:35:40,282 WARN L178 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2018-09-26 09:35:41,199 WARN L178 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2018-09-26 09:35:42,414 WARN L178 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2018-09-26 09:35:43,738 WARN L178 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2018-09-26 09:35:45,335 WARN L178 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2018-09-26 09:35:46,910 WARN L178 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 227 [2018-09-26 09:35:48,772 WARN L178 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 239 [2018-09-26 09:35:50,796 WARN L178 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 251 [2018-09-26 09:35:53,011 WARN L178 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 263 [2018-09-26 09:35:55,395 WARN L178 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 275 [2018-09-26 09:35:58,141 WARN L178 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 287 [2018-09-26 09:36:00,924 WARN L178 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 299 [2018-09-26 09:36:03,907 WARN L178 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 311 [2018-09-26 09:36:06,718 WARN L178 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 323 [2018-09-26 09:36:09,235 WARN L178 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 335 [2018-09-26 09:36:12,060 WARN L178 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 347 [2018-09-26 09:36:15,067 WARN L178 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 359 [2018-09-26 09:36:18,844 WARN L178 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 371 [2018-09-26 09:36:22,902 WARN L178 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 383 [2018-09-26 09:36:27,397 WARN L178 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 395 [2018-09-26 09:36:32,466 WARN L178 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 407 [2018-09-26 09:36:37,889 WARN L178 SmtUtils]: Spent 390.00 ms on a formula simplification that was a NOOP. DAG size: 419 [2018-09-26 09:36:43,178 WARN L178 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 431 [2018-09-26 09:36:48,730 WARN L178 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 443 [2018-09-26 09:36:54,748 WARN L178 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2018-09-26 09:37:01,182 WARN L178 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 467 [2018-09-26 09:37:08,097 WARN L178 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 479 [2018-09-26 09:37:15,544 WARN L178 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 491 [2018-09-26 09:37:23,499 WARN L178 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 503 [2018-09-26 09:37:31,910 WARN L178 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 515 [2018-09-26 09:37:41,087 WARN L178 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 527 [2018-09-26 09:37:50,716 WARN L178 SmtUtils]: Spent 431.00 ms on a formula simplification that was a NOOP. DAG size: 539 [2018-09-26 09:38:00,749 WARN L178 SmtUtils]: Spent 428.00 ms on a formula simplification that was a NOOP. DAG size: 551 [2018-09-26 09:38:11,539 WARN L178 SmtUtils]: Spent 458.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2018-09-26 09:38:22,748 WARN L178 SmtUtils]: Spent 455.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2018-09-26 09:38:34,964 WARN L178 SmtUtils]: Spent 489.00 ms on a formula simplification that was a NOOP. DAG size: 587 [2018-09-26 09:38:47,455 WARN L178 SmtUtils]: Spent 482.00 ms on a formula simplification that was a NOOP. DAG size: 599 [2018-09-26 09:39:00,856 WARN L178 SmtUtils]: Spent 515.00 ms on a formula simplification that was a NOOP. DAG size: 611 [2018-09-26 09:39:15,105 WARN L178 SmtUtils]: Spent 536.00 ms on a formula simplification that was a NOOP. DAG size: 623 [2018-09-26 09:39:30,557 WARN L178 SmtUtils]: Spent 568.00 ms on a formula simplification that was a NOOP. DAG size: 635 [2018-09-26 09:39:47,119 WARN L178 SmtUtils]: Spent 607.00 ms on a formula simplification that was a NOOP. DAG size: 647 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown