/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/SifaCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product41.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-24 18:01:47,221 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 18:01:47,224 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 18:01:47,237 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-24 18:01:47,237 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-24 18:01:47,238 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-24 18:01:47,240 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-24 18:01:47,241 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-24 18:01:47,243 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-24 18:01:47,244 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-24 18:01:47,245 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-24 18:01:47,246 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-24 18:01:47,246 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 18:01:47,247 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 18:01:47,248 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 18:01:47,249 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 18:01:47,250 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 18:01:47,251 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 18:01:47,253 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 18:01:47,255 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 18:01:47,256 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 18:01:47,257 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 18:01:47,258 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 18:01:47,259 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 18:01:47,261 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-24 18:01:47,262 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-24 18:01:47,262 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-24 18:01:47,262 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-24 18:01:47,263 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-24 18:01:47,264 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-24 18:01:47,264 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-24 18:01:47,265 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-24 18:01:47,266 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-24 18:01:47,266 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-24 18:01:47,267 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-24 18:01:47,268 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-24 18:01:47,268 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-24 18:01:47,268 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-24 18:01:47,269 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-24 18:01:47,270 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-24 18:01:47,270 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-24 18:01:47,271 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-24 18:01:47,291 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 18:01:47,291 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 18:01:47,292 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-24 18:01:47,293 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-24 18:01:47,293 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-24 18:01:47,293 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-24 18:01:47,293 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-24 18:01:47,294 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-24 18:01:47,294 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-24 18:01:47,294 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-24 18:01:47,295 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-24 18:01:47,295 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-24 18:01:47,295 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-24 18:01:47,296 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-24 18:01:47,296 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-24 18:01:47,297 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 18:01:47,298 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 18:01:47,298 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 18:01:47,298 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 18:01:47,298 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 18:01:47,299 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 18:01:47,299 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 18:01:47,299 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 18:01:47,299 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 18:01:47,299 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 18:01:47,300 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 18:01:47,300 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 18:01:47,300 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 18:01:47,301 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 18:01:47,301 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 18:01:47,301 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 18:01:47,302 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 18:01:47,302 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 18:01:47,302 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-24 18:01:47,302 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 18:01:47,303 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 18:01:47,303 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 18:01:47,303 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-24 18:01:47,556 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 18:01:47,576 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 18:01:47,580 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 18:01:47,581 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 18:01:47,582 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 18:01:47,582 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product41.cil.c [2019-11-24 18:01:47,662 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/267cc6108/57ca796c6c6f4f979b1c05d9a837c34b/FLAG98ffcaedc [2019-11-24 18:01:48,231 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 18:01:48,232 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product41.cil.c [2019-11-24 18:01:48,250 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/267cc6108/57ca796c6c6f4f979b1c05d9a837c34b/FLAG98ffcaedc [2019-11-24 18:01:48,517 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/267cc6108/57ca796c6c6f4f979b1c05d9a837c34b [2019-11-24 18:01:48,525 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 18:01:48,527 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-24 18:01:48,530 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 18:01:48,530 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 18:01:48,535 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 18:01:48,536 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 06:01:48" (1/1) ... [2019-11-24 18:01:48,539 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51e49450 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:01:48, skipping insertion in model container [2019-11-24 18:01:48,540 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 06:01:48" (1/1) ... [2019-11-24 18:01:48,548 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 18:01:48,606 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 18:01:49,212 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 18:01:49,232 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 18:01:49,319 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 18:01:49,360 INFO L208 MainTranslator]: Completed translation [2019-11-24 18:01:49,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:01:49 WrapperNode [2019-11-24 18:01:49,360 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 18:01:49,361 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 18:01:49,361 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 18:01:49,362 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 18:01:49,370 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:01:49" (1/1) ... [2019-11-24 18:01:49,389 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:01:49" (1/1) ... [2019-11-24 18:01:49,439 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 18:01:49,439 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 18:01:49,440 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 18:01:49,443 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 18:01:49,459 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:01:49" (1/1) ... [2019-11-24 18:01:49,460 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:01:49" (1/1) ... [2019-11-24 18:01:49,473 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:01:49" (1/1) ... [2019-11-24 18:01:49,473 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:01:49" (1/1) ... [2019-11-24 18:01:49,489 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:01:49" (1/1) ... [2019-11-24 18:01:49,497 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:01:49" (1/1) ... [2019-11-24 18:01:49,503 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:01:49" (1/1) ... [2019-11-24 18:01:49,511 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 18:01:49,512 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-24 18:01:49,512 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-24 18:01:49,512 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-24 18:01:49,513 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:01:49" (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:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 18:01:49,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-24 18:01:49,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-24 18:01:49,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-24 18:01:49,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-24 18:01:51,321 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-24 18:01:51,321 INFO L284 CfgBuilder]: Removed 120 assume(true) statements. [2019-11-24 18:01:51,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 06:01:51 BoogieIcfgContainer [2019-11-24 18:01:51,322 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-24 18:01:51,323 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-11-24 18:01:51,323 INFO L271 PluginConnector]: Initializing Sifa... [2019-11-24 18:01:51,323 INFO L275 PluginConnector]: Sifa initialized [2019-11-24 18:01:51,325 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 06:01:51" (1/1) ... [2019-11-24 18:01:51,325 INFO L79 SifaObserver]: LogSizeWrapperFluid Intern Fluid=SizeLimitFluid ♦ Abstract Domain=CompoundDomain ♦ Fluid=SizeLimitFluid ♦ Max. Parallel Explicit Values=2 ♦ Max. Parallel Intervals=2 ♦ Loop Summarizer=FixpointLoopSummarizer ♦ CompoundDomain Intern Domains=ExplicitValueDomain;IntervalDomain ♦ Call Summarizer=TopInputCallSummarizer ♦ Xnf Conversion Technique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION ♦ SizeLimitFluid Max. Disjunctions=8 ♦ Simplification Technique=SIMPLIFY_QUICK ♦ SizeLimitFluid Max. DAG Size=-1 [2019-11-24 18:01:51,350 INFO L159 IcfgInterpreter]: Started Sifa with 3 locations of interest [2019-11-24 18:01:51,351 INFO L166 IcfgInterpreter]: Building call graph [2019-11-24 18:01:51,358 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-24 18:01:51,366 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-24 18:01:51,368 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-24 18:02:00,796 WARN L192 SmtUtils]: Spent 408.00 ms on a formula simplification that was a NOOP. DAG size: 476 [2019-11-24 18:02:02,642 WARN L192 SmtUtils]: Spent 468.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-11-24 18:02:02,787 WARN L192 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 484 [2019-11-24 18:02:03,539 WARN L192 SmtUtils]: Spent 614.00 ms on a formula simplification. DAG size of input: 615 DAG size of output: 615 [2019-11-24 18:02:04,167 WARN L192 SmtUtils]: Spent 621.00 ms on a formula simplification. DAG size of input: 615 DAG size of output: 615 [2019-11-24 18:02:04,687 WARN L192 SmtUtils]: Spent 515.00 ms on a formula simplification that was a NOOP. DAG size: 615 [2019-11-24 18:02:05,342 WARN L192 SmtUtils]: Spent 648.00 ms on a formula simplification. DAG size of input: 619 DAG size of output: 617 [2019-11-24 18:02:06,138 WARN L192 SmtUtils]: Spent 787.00 ms on a formula simplification. DAG size of input: 619 DAG size of output: 617 [2019-11-24 18:02:06,814 WARN L192 SmtUtils]: Spent 672.00 ms on a formula simplification that was a NOOP. DAG size: 617 [2019-11-24 18:02:10,318 WARN L192 SmtUtils]: Spent 2.57 s on a formula simplification. DAG size of input: 872 DAG size of output: 741 [2019-11-24 18:02:10,693 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-24 18:02:11,534 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-24 18:02:11,571 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-24 18:02:21,903 WARN L192 SmtUtils]: Spent 2.84 s on a formula simplification. DAG size of input: 844 DAG size of output: 843 [2019-11-24 18:02:25,915 WARN L192 SmtUtils]: Spent 3.83 s on a formula simplification. DAG size of input: 886 DAG size of output: 884 [2019-11-24 18:02:29,709 WARN L192 SmtUtils]: Spent 3.78 s on a formula simplification. DAG size of input: 886 DAG size of output: 884 [2019-11-24 18:02:32,919 WARN L192 SmtUtils]: Spent 3.20 s on a formula simplification that was a NOOP. DAG size: 882 [2019-11-24 18:02:38,064 WARN L192 SmtUtils]: Spent 5.14 s on a formula simplification that was a NOOP. DAG size: 937 [2019-11-24 18:02:43,695 WARN L192 SmtUtils]: Spent 5.63 s on a formula simplification that was a NOOP. DAG size: 937 [2019-11-24 18:02:48,942 WARN L192 SmtUtils]: Spent 5.24 s on a formula simplification that was a NOOP. DAG size: 937