java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerBpl.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/programs/regression/bpl/AutomizerBpl-pdr.epf -i ../../../trunk/examples/programs/20170304-DifficultPathPrograms/large_const.i_3.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-56c9370 [2018-07-23 15:59:28,266 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 15:59:28,269 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 15:59:28,282 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 15:59:28,282 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 15:59:28,283 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 15:59:28,285 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 15:59:28,287 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 15:59:28,288 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 15:59:28,289 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 15:59:28,290 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 15:59:28,291 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 15:59:28,292 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 15:59:28,293 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 15:59:28,294 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 15:59:28,295 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 15:59:28,296 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 15:59:28,298 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 15:59:28,300 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 15:59:28,302 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 15:59:28,303 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 15:59:28,304 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 15:59:28,307 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-23 15:59:28,307 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-23 15:59:28,307 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-23 15:59:28,308 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-23 15:59:28,310 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-23 15:59:28,310 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-23 15:59:28,311 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-23 15:59:28,313 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-23 15:59:28,313 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-23 15:59:28,314 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-23 15:59:28,314 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-23 15:59:28,314 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-23 15:59:28,315 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-23 15:59:28,316 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-23 15:59:28,316 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/regression/bpl/AutomizerBpl-pdr.epf [2018-07-23 15:59:28,325 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 15:59:28,326 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 15:59:28,327 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 15:59:28,327 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=PDR [2018-07-23 15:59:28,327 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-07-23 15:59:28,328 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 15:59:28,372 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 15:59:28,385 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 15:59:28,389 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 15:59:28,391 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-23 15:59:28,392 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-23 15:59:28,392 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/large_const.i_3.bpl [2018-07-23 15:59:28,393 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/large_const.i_3.bpl' [2018-07-23 15:59:28,447 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 15:59:28,449 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-07-23 15:59:28,450 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 15:59:28,450 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 15:59:28,450 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 15:59:28,479 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "large_const.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:59:28" (1/1) ... [2018-07-23 15:59:28,480 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "large_const.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:59:28" (1/1) ... [2018-07-23 15:59:28,491 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "large_const.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:59:28" (1/1) ... [2018-07-23 15:59:28,492 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "large_const.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:59:28" (1/1) ... [2018-07-23 15:59:28,495 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "large_const.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:59:28" (1/1) ... [2018-07-23 15:59:28,498 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "large_const.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:59:28" (1/1) ... [2018-07-23 15:59:28,499 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "large_const.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:59:28" (1/1) ... [2018-07-23 15:59:28,501 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 15:59:28,502 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 15:59:28,502 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 15:59:28,503 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 15:59:28,504 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "large_const.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:59:28" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-07-23 15:59:28,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 15:59:28,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 15:59:28,846 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 15:59:28,847 INFO L202 PluginConnector]: Adding new model large_const.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:59:28 BoogieIcfgContainer [2018-07-23 15:59:28,847 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 15:59:28,848 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 15:59:28,849 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 15:59:28,852 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 15:59:28,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "large_const.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:59:28" (1/2) ... [2018-07-23 15:59:28,854 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cb9b696 and model type large_const.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 03:59:28, skipping insertion in model container [2018-07-23 15:59:28,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "large_const.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:59:28" (2/2) ... [2018-07-23 15:59:28,856 INFO L112 eAbstractionObserver]: Analyzing ICFG large_const.i_3.bpl [2018-07-23 15:59:28,866 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:PDR Determinization: PREDICATE_ABSTRACTION [2018-07-23 15:59:28,874 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 15:59:28,925 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 15:59:28,926 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 15:59:28,926 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 15:59:28,926 INFO L375 AbstractCegarLoop]: Compute interpolants for PDR [2018-07-23 15:59:28,927 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 15:59:28,927 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 15:59:28,927 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 15:59:28,927 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 15:59:28,928 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 15:59:28,943 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2018-07-23 15:59:28,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-07-23 15:59:28,953 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 15:59:28,954 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-07-23 15:59:28,954 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 15:59:28,960 INFO L82 PathProgramCache]: Analyzing trace with hash 925639, now seen corresponding path program 1 times [2018-07-23 15:59:28,966 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 15:59:29,281 WARN L169 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-07-23 15:59:29,311 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 15:59:29,312 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-23 15:59:29,316 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-23 15:59:29,321 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-23 15:59:29,321 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-23 15:59:29,324 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 3 states. [2018-07-23 15:59:29,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 15:59:29,356 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2018-07-23 15:59:29,356 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-23 15:59:29,358 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2018-07-23 15:59:29,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 15:59:29,369 INFO L225 Difference]: With dead ends: 10 [2018-07-23 15:59:29,369 INFO L226 Difference]: Without dead ends: 7 [2018-07-23 15:59:29,373 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-23 15:59:29,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2018-07-23 15:59:29,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-07-23 15:59:29,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-07-23 15:59:29,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-07-23 15:59:29,410 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2018-07-23 15:59:29,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 15:59:29,411 INFO L471 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-07-23 15:59:29,411 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-23 15:59:29,411 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-07-23 15:59:29,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-23 15:59:29,412 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 15:59:29,412 INFO L353 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2018-07-23 15:59:29,412 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 15:59:29,413 INFO L82 PathProgramCache]: Analyzing trace with hash 889591169, now seen corresponding path program 1 times [2018-07-23 15:59:29,413 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 15:59:29,672 WARN L169 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 19 [2018-07-23 15:59:30,037 WARN L169 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2018-07-23 15:59:31,136 WARN L169 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2018-07-23 15:59:31,862 WARN L169 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2018-07-23 15:59:32,933 WARN L169 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2018-07-23 15:59:33,665 WARN L169 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2018-07-23 15:59:34,220 WARN L169 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2018-07-23 15:59:34,970 WARN L169 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2018-07-23 15:59:35,707 WARN L169 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2018-07-23 15:59:36,423 WARN L169 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2018-07-23 15:59:37,346 WARN L169 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2018-07-23 15:59:38,398 WARN L169 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2018-07-23 15:59:39,720 WARN L169 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2018-07-23 15:59:40,949 WARN L169 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2018-07-23 15:59:42,330 WARN L169 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2018-07-23 15:59:44,070 WARN L169 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2018-07-23 15:59:45,677 WARN L169 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 224 [2018-07-23 15:59:47,472 WARN L169 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 235 [2018-07-23 15:59:49,508 WARN L169 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 246 [2018-07-23 15:59:51,821 WARN L169 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 257 [2018-07-23 15:59:54,359 WARN L169 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2018-07-23 15:59:57,103 WARN L169 SmtUtils]: Spent 472.00 ms on a formula simplification that was a NOOP. DAG size: 279 [2018-07-23 16:00:00,151 WARN L169 SmtUtils]: Spent 453.00 ms on a formula simplification that was a NOOP. DAG size: 290 [2018-07-23 16:00:03,409 WARN L169 SmtUtils]: Spent 488.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2018-07-23 16:00:07,047 WARN L169 SmtUtils]: Spent 471.00 ms on a formula simplification that was a NOOP. DAG size: 312 [2018-07-23 16:00:10,818 WARN L169 SmtUtils]: Spent 507.00 ms on a formula simplification that was a NOOP. DAG size: 323 [2018-07-23 16:00:15,046 WARN L169 SmtUtils]: Spent 521.00 ms on a formula simplification that was a NOOP. DAG size: 334 [2018-07-23 16:00:19,919 WARN L169 SmtUtils]: Spent 532.00 ms on a formula simplification that was a NOOP. DAG size: 345 [2018-07-23 16:00:23,663 WARN L169 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 23 [2018-07-23 16:00:25,633 WARN L169 SmtUtils]: Spent 982.00 ms on a formula simplification that was a NOOP. DAG size: 356 [2018-07-23 16:00:30,937 WARN L169 SmtUtils]: Spent 633.00 ms on a formula simplification that was a NOOP. DAG size: 367 [2018-07-23 16:00:36,421 WARN L169 SmtUtils]: Spent 604.00 ms on a formula simplification that was a NOOP. DAG size: 378 [2018-07-23 16:00:42,747 WARN L169 SmtUtils]: Spent 628.00 ms on a formula simplification that was a NOOP. DAG size: 389 [2018-07-23 16:00:49,590 WARN L169 SmtUtils]: Spent 740.00 ms on a formula simplification that was a NOOP. DAG size: 400 [2018-07-23 16:00:56,744 WARN L169 SmtUtils]: Spent 703.00 ms on a formula simplification that was a NOOP. DAG size: 411 [2018-07-23 16:01:04,311 WARN L169 SmtUtils]: Spent 690.00 ms on a formula simplification that was a NOOP. DAG size: 422 [2018-07-23 16:01:12,362 WARN L169 SmtUtils]: Spent 729.00 ms on a formula simplification that was a NOOP. DAG size: 433 [2018-07-23 16:01:20,776 WARN L169 SmtUtils]: Spent 857.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2018-07-23 16:01:30,043 WARN L169 SmtUtils]: Spent 812.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2018-07-23 16:01:39,420 WARN L169 SmtUtils]: Spent 847.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2018-07-23 16:01:49,731 WARN L169 SmtUtils]: Spent 842.00 ms on a formula simplification that was a NOOP. DAG size: 477 [2018-07-23 16:02:00,820 WARN L169 SmtUtils]: Spent 895.00 ms on a formula simplification that was a NOOP. DAG size: 488 [2018-07-23 16:02:12,588 WARN L169 SmtUtils]: Spent 894.00 ms on a formula simplification that was a NOOP. DAG size: 499 [2018-07-23 16:02:24,697 WARN L169 SmtUtils]: Spent 927.00 ms on a formula simplification that was a NOOP. DAG size: 510 [2018-07-23 16:02:37,852 WARN L169 SmtUtils]: Spent 997.00 ms on a formula simplification that was a NOOP. DAG size: 521 [2018-07-23 16:02:51,262 WARN L169 SmtUtils]: Spent 972.00 ms on a formula simplification that was a NOOP. DAG size: 532 [2018-07-23 16:03:05,778 WARN L169 SmtUtils]: Spent 984.00 ms on a formula simplification that was a NOOP. DAG size: 543 [2018-07-23 16:03:20,774 WARN L169 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 554 [2018-07-23 16:03:36,572 WARN L169 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 565 [2018-07-23 16:03:53,356 WARN L169 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 576 [2018-07-23 16:04:10,782 WARN L169 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 587 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown