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/cggmp2005.c.i_3.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ff8eab6 [2018-09-26 09:35:24,088 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-26 09:35:24,091 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-26 09:35:24,112 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-26 09:35:24,113 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-26 09:35:24,114 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-26 09:35:24,116 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-26 09:35:24,118 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-26 09:35:24,122 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-26 09:35:24,123 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-26 09:35:24,126 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-26 09:35:24,127 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-26 09:35:24,128 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-26 09:35:24,129 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-26 09:35:24,130 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-26 09:35:24,131 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-26 09:35:24,132 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-26 09:35:24,134 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-26 09:35:24,136 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-26 09:35:24,138 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-26 09:35:24,139 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-26 09:35:24,140 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-26 09:35:24,142 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-26 09:35:24,143 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-26 09:35:24,143 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-26 09:35:24,144 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-26 09:35:24,145 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-26 09:35:24,145 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-26 09:35:24,146 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-26 09:35:24,147 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-26 09:35:24,147 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-26 09:35:24,148 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-26 09:35:24,148 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-26 09:35:24,149 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-26 09:35:24,149 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-26 09:35:24,150 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-26 09:35:24,150 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 09:35:24,159 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-26 09:35:24,159 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-26 09:35:24,161 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-26 09:35:24,161 INFO L133 SettingsManager]: * SMT solver=Internal_SMTInterpol [2018-09-26 09:35:24,161 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-26 09:35:24,161 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=PDR [2018-09-26 09:35:24,162 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-09-26 09:35:24,162 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-26 09:35:24,223 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-26 09:35:24,241 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-26 09:35:24,245 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-26 09:35:24,247 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-26 09:35:24,248 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-26 09:35:24,248 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/cggmp2005.c.i_3.bpl [2018-09-26 09:35:24,249 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/cggmp2005.c.i_3.bpl' [2018-09-26 09:35:24,300 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-26 09:35:24,303 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-26 09:35:24,304 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-26 09:35:24,305 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-26 09:35:24,305 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-26 09:35:24,325 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "cggmp2005.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:35:24" (1/1) ... [2018-09-26 09:35:24,338 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "cggmp2005.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:35:24" (1/1) ... [2018-09-26 09:35:24,346 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-26 09:35:24,347 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-26 09:35:24,347 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-26 09:35:24,347 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-26 09:35:24,358 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "cggmp2005.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:35:24" (1/1) ... [2018-09-26 09:35:24,359 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "cggmp2005.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:35:24" (1/1) ... [2018-09-26 09:35:24,360 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "cggmp2005.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:35:24" (1/1) ... [2018-09-26 09:35:24,360 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "cggmp2005.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:35:24" (1/1) ... [2018-09-26 09:35:24,363 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "cggmp2005.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:35:24" (1/1) ... [2018-09-26 09:35:24,366 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "cggmp2005.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:35:24" (1/1) ... [2018-09-26 09:35:24,367 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "cggmp2005.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:35:24" (1/1) ... [2018-09-26 09:35:24,369 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-26 09:35:24,370 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-26 09:35:24,370 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-26 09:35:24,370 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-26 09:35:24,374 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "cggmp2005.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:35:24" (1/1) ... [2018-09-26 09:35:24,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-26 09:35:24,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-26 09:35:24,637 INFO L346 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-26 09:35:24,640 INFO L202 PluginConnector]: Adding new model cggmp2005.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 09:35:24 BoogieIcfgContainer [2018-09-26 09:35:24,641 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-26 09:35:24,642 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-26 09:35:24,642 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-26 09:35:24,647 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-26 09:35:24,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "cggmp2005.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:35:24" (1/2) ... [2018-09-26 09:35:24,649 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@597ecf76 and model type cggmp2005.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.09 09:35:24, skipping insertion in model container [2018-09-26 09:35:24,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "cggmp2005.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 09:35:24" (2/2) ... [2018-09-26 09:35:24,653 INFO L112 eAbstractionObserver]: Analyzing ICFG cggmp2005.c.i_3.bpl [2018-09-26 09:35:24,665 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:PDR Determinization: PREDICATE_ABSTRACTION [2018-09-26 09:35:24,678 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-26 09:35:24,740 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-09-26 09:35:24,741 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-26 09:35:24,742 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-26 09:35:24,742 INFO L383 AbstractCegarLoop]: Compute interpolants for PDR [2018-09-26 09:35:24,742 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-26 09:35:24,742 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-26 09:35:24,743 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-26 09:35:24,743 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-26 09:35:24,743 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-26 09:35:24,763 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2018-09-26 09:35:24,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-09-26 09:35:24,774 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 09:35:24,776 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-09-26 09:35:24,777 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 09:35:24,786 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 09:35:24,786 INFO L82 PathProgramCache]: Analyzing trace with hash 925639, now seen corresponding path program 1 times [2018-09-26 09:35:24,794 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 09:35:24,923 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 09:35:24,924 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-26 09:35:24,932 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-26 09:35:24,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-26 09:35:24,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-26 09:35:24,944 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 3 states. [2018-09-26 09:35:24,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 09:35:24,973 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2018-09-26 09:35:24,974 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-26 09:35:24,975 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2018-09-26 09:35:24,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 09:35:24,987 INFO L225 Difference]: With dead ends: 10 [2018-09-26 09:35:24,987 INFO L226 Difference]: Without dead ends: 7 [2018-09-26 09:35:24,991 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 09:35:25,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2018-09-26 09:35:25,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-09-26 09:35:25,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-09-26 09:35:25,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-09-26 09:35:25,035 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2018-09-26 09:35:25,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 09:35:25,036 INFO L480 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-09-26 09:35:25,036 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-26 09:35:25,036 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-09-26 09:35:25,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-09-26 09:35:25,037 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 09:35:25,037 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2018-09-26 09:35:25,038 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 09:35:25,038 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 09:35:25,038 INFO L82 PathProgramCache]: Analyzing trace with hash 889591169, now seen corresponding path program 1 times [2018-09-26 09:35:25,039 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 09:35:41,948 WARN L178 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2018-09-26 09:35:48,067 WARN L178 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 297 [2018-09-26 09:35:50,677 WARN L178 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 308 [2018-09-26 09:35:53,196 WARN L178 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 319 [2018-09-26 09:35:55,802 WARN L178 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 330 [2018-09-26 09:36:01,617 WARN L178 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 352 [2018-09-26 09:36:05,595 WARN L178 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 363 [2018-09-26 09:36:09,802 WARN L178 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 374 [2018-09-26 09:36:14,259 WARN L178 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 385 [2018-09-26 09:36:18,507 WARN L178 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 396 [2018-09-26 09:36:22,996 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 407 [2018-09-26 09:36:27,497 WARN L178 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 418 [2018-09-26 09:36:32,319 WARN L178 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 429 [2018-09-26 09:36:37,484 WARN L178 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 440 [2018-09-26 09:36:43,102 WARN L178 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 451 [2018-09-26 09:36:49,005 WARN L178 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 462 [2018-09-26 09:36:55,296 WARN L178 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 473 [2018-09-26 09:37:02,007 WARN L178 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 484 [2018-09-26 09:37:09,210 WARN L178 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 495 [2018-09-26 09:37:16,806 WARN L178 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 506 [2018-09-26 09:37:24,994 WARN L178 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 517 [2018-09-26 09:37:33,753 WARN L178 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 528 [2018-09-26 09:37:43,135 WARN L178 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 539 [2018-09-26 09:37:53,068 WARN L178 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 550 [2018-09-26 09:38:03,469 WARN L178 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2018-09-26 09:38:14,556 WARN L178 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 572 [2018-09-26 09:38:26,363 WARN L178 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 583 [2018-09-26 09:38:38,700 WARN L178 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 594 [2018-09-26 09:38:51,621 WARN L178 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 605 [2018-09-26 09:39:05,292 WARN L178 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 616 [2018-09-26 09:39:19,889 WARN L178 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2018-09-26 09:39:35,065 WARN L178 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 638 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown