java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/Pdr/AutomizerBpl-pdr-z3.epf -i ../../../trunk/examples/programs/20170304-DifficultPathPrograms/sum01_bug02.i_3.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-e6fd87c [2018-07-25 14:15:49,777 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-25 14:15:49,779 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-25 14:15:49,791 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-25 14:15:49,792 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-25 14:15:49,793 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-25 14:15:49,794 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-25 14:15:49,804 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-25 14:15:49,806 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-25 14:15:49,807 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-25 14:15:49,808 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-25 14:15:49,808 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-25 14:15:49,809 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-25 14:15:49,810 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-25 14:15:49,811 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-25 14:15:49,812 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-25 14:15:49,813 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-25 14:15:49,815 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-25 14:15:49,817 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-25 14:15:49,819 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-25 14:15:49,820 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-25 14:15:49,821 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-25 14:15:49,824 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-25 14:15:49,824 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-25 14:15:49,824 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-25 14:15:49,825 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-25 14:15:49,826 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-25 14:15:49,827 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-25 14:15:49,828 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-25 14:15:49,830 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-25 14:15:49,830 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-25 14:15:49,831 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-25 14:15:49,831 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-25 14:15:49,831 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-25 14:15:49,832 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-25 14:15:49,833 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-25 14:15:49,833 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/Pdr/AutomizerBpl-pdr-z3.epf [2018-07-25 14:15:49,842 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-25 14:15:49,842 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-25 14:15:49,844 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-25 14:15:49,844 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=PDR [2018-07-25 14:15:49,844 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-25 14:15:49,845 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-07-25 14:15:49,845 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-25 14:15:49,890 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-25 14:15:49,903 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-25 14:15:49,907 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-25 14:15:49,909 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-25 14:15:49,910 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-25 14:15:49,911 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/sum01_bug02.i_3.bpl [2018-07-25 14:15:49,911 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/sum01_bug02.i_3.bpl' [2018-07-25 14:15:49,983 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-25 14:15:49,987 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-07-25 14:15:49,988 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-25 14:15:49,988 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-25 14:15:49,988 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-25 14:15:50,013 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sum01_bug02.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:15:49" (1/1) ... [2018-07-25 14:15:50,028 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sum01_bug02.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:15:49" (1/1) ... [2018-07-25 14:15:50,037 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-25 14:15:50,038 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-25 14:15:50,039 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-25 14:15:50,039 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-25 14:15:50,053 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sum01_bug02.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:15:49" (1/1) ... [2018-07-25 14:15:50,053 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sum01_bug02.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:15:49" (1/1) ... [2018-07-25 14:15:50,054 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sum01_bug02.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:15:49" (1/1) ... [2018-07-25 14:15:50,054 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sum01_bug02.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:15:49" (1/1) ... [2018-07-25 14:15:50,058 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sum01_bug02.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:15:49" (1/1) ... [2018-07-25 14:15:50,061 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sum01_bug02.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:15:49" (1/1) ... [2018-07-25 14:15:50,063 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sum01_bug02.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:15:49" (1/1) ... [2018-07-25 14:15:50,065 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-25 14:15:50,066 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-25 14:15:50,066 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-25 14:15:50,066 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-25 14:15:50,070 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sum01_bug02.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:15:49" (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 [2018-07-25 14:15:50,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-25 14:15:50,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-25 14:15:50,445 INFO L273 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-25 14:15:50,445 INFO L202 PluginConnector]: Adding new model sum01_bug02.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.07 02:15:50 BoogieIcfgContainer [2018-07-25 14:15:50,446 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-25 14:15:50,447 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-25 14:15:50,447 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-25 14:15:50,450 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-25 14:15:50,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum01_bug02.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:15:49" (1/2) ... [2018-07-25 14:15:50,452 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32277472 and model type sum01_bug02.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.07 02:15:50, skipping insertion in model container [2018-07-25 14:15:50,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum01_bug02.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.07 02:15:50" (2/2) ... [2018-07-25 14:15:50,455 INFO L112 eAbstractionObserver]: Analyzing ICFG sum01_bug02.i_3.bpl [2018-07-25 14:15:50,465 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:PDR Determinization: PREDICATE_ABSTRACTION [2018-07-25 14:15:50,473 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-25 14:15:50,522 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-25 14:15:50,523 INFO L374 AbstractCegarLoop]: Interprodecural is true [2018-07-25 14:15:50,523 INFO L375 AbstractCegarLoop]: Hoare is true [2018-07-25 14:15:50,523 INFO L376 AbstractCegarLoop]: Compute interpolants for PDR [2018-07-25 14:15:50,523 INFO L377 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-25 14:15:50,524 INFO L378 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-25 14:15:50,524 INFO L379 AbstractCegarLoop]: Difference is false [2018-07-25 14:15:50,524 INFO L380 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-25 14:15:50,524 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-25 14:15:50,540 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2018-07-25 14:15:50,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-07-25 14:15:50,549 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 14:15:50,550 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-07-25 14:15:50,552 INFO L415 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 14:15:50,558 INFO L82 PathProgramCache]: Analyzing trace with hash 925639, now seen corresponding path program 1 times No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-07-25 14:15:50,584 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 14:15:50,893 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 14:15:50,893 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-25 14:15:50,897 INFO L451 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-25 14:15:50,903 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-25 14:15:50,903 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-25 14:15:50,906 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 3 states. [2018-07-25 14:15:50,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 14:15:50,958 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2018-07-25 14:15:50,958 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-25 14:15:50,959 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2018-07-25 14:15:50,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 14:15:50,972 INFO L225 Difference]: With dead ends: 10 [2018-07-25 14:15:50,973 INFO L226 Difference]: Without dead ends: 7 [2018-07-25 14:15:50,976 INFO L574 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 [2018-07-25 14:15:50,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2018-07-25 14:15:51,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-07-25 14:15:51,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-07-25 14:15:51,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-07-25 14:15:51,013 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2018-07-25 14:15:51,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 14:15:51,014 INFO L472 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-07-25 14:15:51,014 INFO L473 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-25 14:15:51,014 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-07-25 14:15:51,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-25 14:15:51,015 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 14:15:51,015 INFO L354 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2018-07-25 14:15:51,015 INFO L415 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 14:15:51,016 INFO L82 PathProgramCache]: Analyzing trace with hash 889591169, now seen corresponding path program 1 times No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-07-25 14:15:51,032 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 14:15:51,631 WARN L169 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 21 [2018-07-25 14:15:52,951 WARN L169 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 25 [2018-07-25 14:15:53,434 WARN L169 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2018-07-25 14:15:54,834 WARN L169 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2018-07-25 14:15:55,443 WARN L169 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2018-07-25 14:15:56,115 WARN L169 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2018-07-25 14:15:56,854 WARN L169 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2018-07-25 14:15:57,436 WARN L169 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2018-07-25 14:15:58,126 WARN L169 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2018-07-25 14:15:58,921 WARN L169 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2018-07-25 14:16:00,018 WARN L169 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2018-07-25 14:16:01,106 WARN L169 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2018-07-25 14:16:02,240 WARN L169 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2018-07-25 14:16:03,481 WARN L169 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2018-07-25 14:16:05,051 WARN L169 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2018-07-25 14:16:06,855 WARN L169 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 266 [2018-07-25 14:16:08,737 WARN L169 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 281 [2018-07-25 14:16:10,816 WARN L169 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 294 [2018-07-25 14:16:13,062 WARN L169 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 309 [2018-07-25 14:16:15,639 WARN L169 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2018-07-25 14:16:18,293 WARN L169 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 337 [2018-07-25 14:16:21,318 WARN L169 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 350 [2018-07-25 14:16:24,592 WARN L169 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 365 [2018-07-25 14:16:28,245 WARN L169 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 378 [2018-07-25 14:16:32,235 WARN L169 SmtUtils]: Spent 412.00 ms on a formula simplification that was a NOOP. DAG size: 393 [2018-07-25 14:16:36,426 WARN L169 SmtUtils]: Spent 456.00 ms on a formula simplification that was a NOOP. DAG size: 406 [2018-07-25 14:16:41,477 WARN L169 SmtUtils]: Spent 586.00 ms on a formula simplification that was a NOOP. DAG size: 421 [2018-07-25 14:16:46,964 WARN L169 SmtUtils]: Spent 550.00 ms on a formula simplification that was a NOOP. DAG size: 434 [2018-07-25 14:16:53,326 WARN L169 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 449 [2018-07-25 14:16:59,114 WARN L169 SmtUtils]: Spent 529.00 ms on a formula simplification that was a NOOP. DAG size: 462 [2018-07-25 14:17:05,356 WARN L169 SmtUtils]: Spent 529.00 ms on a formula simplification that was a NOOP. DAG size: 477 [2018-07-25 14:17:12,079 WARN L169 SmtUtils]: Spent 544.00 ms on a formula simplification that was a NOOP. DAG size: 490 [2018-07-25 14:17:19,351 WARN L169 SmtUtils]: Spent 580.00 ms on a formula simplification that was a NOOP. DAG size: 505 [2018-07-25 14:17:27,105 WARN L169 SmtUtils]: Spent 606.00 ms on a formula simplification that was a NOOP. DAG size: 518 [2018-07-25 14:17:35,539 WARN L169 SmtUtils]: Spent 617.00 ms on a formula simplification that was a NOOP. DAG size: 533 [2018-07-25 14:17:44,437 WARN L169 SmtUtils]: Spent 651.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2018-07-25 14:17:53,963 WARN L169 SmtUtils]: Spent 706.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2018-07-25 14:18:04,183 WARN L169 SmtUtils]: Spent 709.00 ms on a formula simplification that was a NOOP. DAG size: 574 [2018-07-25 14:18:15,010 WARN L169 SmtUtils]: Spent 720.00 ms on a formula simplification that was a NOOP. DAG size: 589 [2018-07-25 14:18:26,495 WARN L169 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 602 [2018-07-25 14:18:38,768 WARN L169 SmtUtils]: Spent 773.00 ms on a formula simplification that was a NOOP. DAG size: 617 [2018-07-25 14:18:51,610 WARN L169 SmtUtils]: Spent 777.00 ms on a formula simplification that was a NOOP. DAG size: 630 [2018-07-25 14:19:05,256 WARN L169 SmtUtils]: Spent 827.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2018-07-25 14:19:19,822 WARN L169 SmtUtils]: Spent 839.00 ms on a formula simplification that was a NOOP. DAG size: 658 [2018-07-25 14:19:34,887 WARN L169 SmtUtils]: Spent 872.00 ms on a formula simplification that was a NOOP. DAG size: 673 [2018-07-25 14:19:50,537 WARN L169 SmtUtils]: Spent 889.00 ms on a formula simplification that was a NOOP. DAG size: 686 [2018-07-25 14:20:07,297 WARN L169 SmtUtils]: Spent 939.00 ms on a formula simplification that was a NOOP. DAG size: 701 [2018-07-25 14:20:24,985 WARN L169 SmtUtils]: Spent 965.00 ms on a formula simplification that was a NOOP. DAG size: 714 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown