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/array1.i_3.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-56c9370 [2018-07-23 15:49:36,030 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 15:49:36,033 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 15:49:36,046 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 15:49:36,046 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 15:49:36,047 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 15:49:36,048 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 15:49:36,050 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 15:49:36,052 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 15:49:36,052 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 15:49:36,053 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 15:49:36,054 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 15:49:36,055 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 15:49:36,056 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 15:49:36,057 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 15:49:36,058 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 15:49:36,058 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 15:49:36,060 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 15:49:36,062 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 15:49:36,064 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 15:49:36,065 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 15:49:36,066 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 15:49:36,072 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-23 15:49:36,072 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-23 15:49:36,073 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-23 15:49:36,076 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-23 15:49:36,078 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-23 15:49:36,078 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-23 15:49:36,082 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-23 15:49:36,086 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-23 15:49:36,086 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-23 15:49:36,087 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-23 15:49:36,087 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-23 15:49:36,087 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-23 15:49:36,088 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-23 15:49:36,091 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-23 15:49:36,091 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 15:49:36,105 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 15:49:36,105 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 15:49:36,107 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 15:49:36,107 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=PDR [2018-07-23 15:49:36,108 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-07-23 15:49:36,108 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 15:49:36,157 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 15:49:36,170 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 15:49:36,174 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 15:49:36,175 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-23 15:49:36,176 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-23 15:49:36,176 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/array1.i_3.bpl [2018-07-23 15:49:36,177 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/array1.i_3.bpl' [2018-07-23 15:49:36,222 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 15:49:36,224 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-07-23 15:49:36,225 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 15:49:36,225 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 15:49:36,225 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 15:49:36,250 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "array1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:49:36" (1/1) ... [2018-07-23 15:49:36,252 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "array1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:49:36" (1/1) ... [2018-07-23 15:49:36,264 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "array1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:49:36" (1/1) ... [2018-07-23 15:49:36,264 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "array1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:49:36" (1/1) ... [2018-07-23 15:49:36,267 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "array1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:49:36" (1/1) ... [2018-07-23 15:49:36,269 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "array1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:49:36" (1/1) ... [2018-07-23 15:49:36,270 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "array1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:49:36" (1/1) ... [2018-07-23 15:49:36,271 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 15:49:36,272 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 15:49:36,272 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 15:49:36,273 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 15:49:36,273 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "array1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:49:36" (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 15:49:36,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 15:49:36,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 15:49:36,478 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 15:49:36,479 INFO L202 PluginConnector]: Adding new model array1.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:49:36 BoogieIcfgContainer [2018-07-23 15:49:36,479 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 15:49:36,480 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 15:49:36,480 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 15:49:36,484 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 15:49:36,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "array1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:49:36" (1/2) ... [2018-07-23 15:49:36,485 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2552d9f3 and model type array1.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 03:49:36, skipping insertion in model container [2018-07-23 15:49:36,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "array1.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:49:36" (2/2) ... [2018-07-23 15:49:36,487 INFO L112 eAbstractionObserver]: Analyzing ICFG array1.i_3.bpl [2018-07-23 15:49:36,497 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:PDR Determinization: PREDICATE_ABSTRACTION [2018-07-23 15:49:36,504 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 15:49:36,552 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 15:49:36,552 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 15:49:36,553 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 15:49:36,553 INFO L375 AbstractCegarLoop]: Compute interpolants for PDR [2018-07-23 15:49:36,553 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 15:49:36,553 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 15:49:36,553 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 15:49:36,554 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 15:49:36,554 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 15:49:36,569 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2018-07-23 15:49:36,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-07-23 15:49:36,578 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 15:49:36,579 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-07-23 15:49:36,579 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 15:49:36,585 INFO L82 PathProgramCache]: Analyzing trace with hash 925639, now seen corresponding path program 1 times [2018-07-23 15:49:36,591 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 15:49:36,890 WARN L169 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-07-23 15:49:36,933 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 15:49:36,934 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-23 15:49:36,937 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-23 15:49:36,942 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-23 15:49:36,943 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-23 15:49:36,945 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 3 states. [2018-07-23 15:49:36,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 15:49:36,972 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2018-07-23 15:49:36,974 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-23 15:49:36,975 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2018-07-23 15:49:36,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 15:49:36,986 INFO L225 Difference]: With dead ends: 10 [2018-07-23 15:49:36,986 INFO L226 Difference]: Without dead ends: 7 [2018-07-23 15:49:36,990 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 15:49:37,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2018-07-23 15:49:37,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-07-23 15:49:37,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-07-23 15:49:37,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-07-23 15:49:37,021 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2018-07-23 15:49:37,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 15:49:37,021 INFO L471 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-07-23 15:49:37,022 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-23 15:49:37,022 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-07-23 15:49:37,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-23 15:49:37,022 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 15:49:37,022 INFO L353 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2018-07-23 15:49:37,023 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 15:49:37,023 INFO L82 PathProgramCache]: Analyzing trace with hash 889591169, now seen corresponding path program 1 times [2018-07-23 15:49:37,023 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 15:49:40,809 WARN L169 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2018-07-23 15:49:45,881 WARN L169 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2018-07-23 15:49:46,612 WARN L169 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2018-07-23 15:49:47,427 WARN L169 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2018-07-23 15:49:48,378 WARN L169 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2018-07-23 15:49:49,470 WARN L169 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2018-07-23 15:49:50,538 WARN L169 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2018-07-23 15:49:51,727 WARN L169 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2018-07-23 15:49:52,902 WARN L169 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2018-07-23 15:49:54,354 WARN L169 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2018-07-23 15:49:55,752 WARN L169 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2018-07-23 15:49:57,278 WARN L169 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2018-07-23 15:49:59,505 WARN L169 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2018-07-23 15:50:01,253 WARN L169 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 6 [2018-07-23 15:50:02,381 WARN L169 SmtUtils]: Spent 673.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2018-07-23 15:50:04,457 WARN L169 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2018-07-23 15:50:06,599 WARN L169 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2018-07-23 15:50:08,807 WARN L169 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2018-07-23 15:50:11,175 WARN L169 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2018-07-23 15:50:13,683 WARN L169 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2018-07-23 15:50:16,351 WARN L169 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2018-07-23 15:50:19,260 WARN L169 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2018-07-23 15:50:22,233 WARN L169 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2018-07-23 15:50:25,568 WARN L169 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2018-07-23 15:50:29,039 WARN L169 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2018-07-23 15:50:32,734 WARN L169 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 224 [2018-07-23 15:50:36,517 WARN L169 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 229 [2018-07-23 15:50:40,653 WARN L169 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 234 [2018-07-23 15:50:44,829 WARN L169 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 239 [2018-07-23 15:50:49,212 WARN L169 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2018-07-23 15:50:53,907 WARN L169 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 249 [2018-07-23 15:50:58,896 WARN L169 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2018-07-23 15:51:04,079 WARN L169 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 259 [2018-07-23 15:51:09,617 WARN L169 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2018-07-23 15:51:15,530 WARN L169 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 269 [2018-07-23 15:51:21,731 WARN L169 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 274 [2018-07-23 15:51:28,076 WARN L169 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 279 [2018-07-23 15:51:34,859 WARN L169 SmtUtils]: Spent 411.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2018-07-23 15:51:42,117 WARN L169 SmtUtils]: Spent 462.00 ms on a formula simplification that was a NOOP. DAG size: 289 [2018-07-23 15:51:49,631 WARN L169 SmtUtils]: Spent 424.00 ms on a formula simplification that was a NOOP. DAG size: 294 [2018-07-23 15:51:57,586 WARN L169 SmtUtils]: Spent 430.00 ms on a formula simplification that was a NOOP. DAG size: 299 [2018-07-23 15:52:05,650 WARN L169 SmtUtils]: Spent 434.00 ms on a formula simplification that was a NOOP. DAG size: 304 [2018-07-23 15:52:14,298 WARN L169 SmtUtils]: Spent 441.00 ms on a formula simplification that was a NOOP. DAG size: 309 [2018-07-23 15:52:23,233 WARN L169 SmtUtils]: Spent 461.00 ms on a formula simplification that was a NOOP. DAG size: 314 [2018-07-23 15:52:32,394 WARN L169 SmtUtils]: Spent 473.00 ms on a formula simplification that was a NOOP. DAG size: 319 [2018-07-23 15:52:42,094 WARN L169 SmtUtils]: Spent 464.00 ms on a formula simplification that was a NOOP. DAG size: 324 [2018-07-23 15:52:52,421 WARN L169 SmtUtils]: Spent 505.00 ms on a formula simplification that was a NOOP. DAG size: 329 [2018-07-23 15:53:03,107 WARN L169 SmtUtils]: Spent 510.00 ms on a formula simplification that was a NOOP. DAG size: 334 [2018-07-23 15:53:14,449 WARN L169 SmtUtils]: Spent 512.00 ms on a formula simplification that was a NOOP. DAG size: 339 [2018-07-23 15:53:26,311 WARN L169 SmtUtils]: Spent 491.00 ms on a formula simplification that was a NOOP. DAG size: 344 [2018-07-23 15:53:38,744 WARN L169 SmtUtils]: Spent 549.00 ms on a formula simplification that was a NOOP. DAG size: 349 [2018-07-23 15:53:51,420 WARN L169 SmtUtils]: Spent 564.00 ms on a formula simplification that was a NOOP. DAG size: 354 [2018-07-23 15:54:04,512 WARN L169 SmtUtils]: Spent 528.00 ms on a formula simplification that was a NOOP. DAG size: 359 [2018-07-23 15:54:18,598 WARN L169 SmtUtils]: Spent 569.00 ms on a formula simplification that was a NOOP. DAG size: 364 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown