/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_spec1_product46.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-24 17:47:59,296 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 17:47:59,298 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 17:47:59,310 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-24 17:47:59,310 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-24 17:47:59,311 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-24 17:47:59,313 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-24 17:47:59,314 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-24 17:47:59,316 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-24 17:47:59,317 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-24 17:47:59,318 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-24 17:47:59,319 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-24 17:47:59,319 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 17:47:59,320 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 17:47:59,321 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 17:47:59,322 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 17:47:59,322 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 17:47:59,323 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 17:47:59,325 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 17:47:59,327 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 17:47:59,328 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 17:47:59,329 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 17:47:59,330 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 17:47:59,331 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 17:47:59,333 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-24 17:47:59,333 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-24 17:47:59,333 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-24 17:47:59,334 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-24 17:47:59,335 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-24 17:47:59,336 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-24 17:47:59,336 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-24 17:47:59,337 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-24 17:47:59,337 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-24 17:47:59,338 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-24 17:47:59,339 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-24 17:47:59,339 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-24 17:47:59,340 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-24 17:47:59,340 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-24 17:47:59,340 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-24 17:47:59,341 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-24 17:47:59,342 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-24 17:47:59,342 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 17:47:59,356 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 17:47:59,356 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 17:47:59,357 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-24 17:47:59,357 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-24 17:47:59,358 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-24 17:47:59,358 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-24 17:47:59,358 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-24 17:47:59,358 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-24 17:47:59,358 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-24 17:47:59,359 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-24 17:47:59,359 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-24 17:47:59,359 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-24 17:47:59,359 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-24 17:47:59,359 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-24 17:47:59,360 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-24 17:47:59,360 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 17:47:59,360 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 17:47:59,361 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 17:47:59,361 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 17:47:59,361 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 17:47:59,361 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 17:47:59,361 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 17:47:59,362 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 17:47:59,362 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 17:47:59,362 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 17:47:59,362 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 17:47:59,362 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 17:47:59,363 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 17:47:59,363 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 17:47:59,363 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 17:47:59,363 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 17:47:59,363 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 17:47:59,364 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 17:47:59,364 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-24 17:47:59,364 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 17:47:59,364 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 17:47:59,364 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 17:47:59,365 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-24 17:47:59,629 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 17:47:59,643 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 17:47:59,647 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 17:47:59,649 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 17:47:59,649 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 17:47:59,649 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product46.cil.c [2019-11-24 17:47:59,719 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c076b04ae/c6c5e5686f8b481a88af721ee89d2faa/FLAGfb003b553 [2019-11-24 17:48:00,231 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 17:48:00,232 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product46.cil.c [2019-11-24 17:48:00,248 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c076b04ae/c6c5e5686f8b481a88af721ee89d2faa/FLAGfb003b553 [2019-11-24 17:48:00,542 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c076b04ae/c6c5e5686f8b481a88af721ee89d2faa [2019-11-24 17:48:00,553 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 17:48:00,555 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-24 17:48:00,559 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 17:48:00,560 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 17:48:00,563 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 17:48:00,564 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 05:48:00" (1/1) ... [2019-11-24 17:48:00,568 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cd0d998 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:48:00, skipping insertion in model container [2019-11-24 17:48:00,569 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 05:48:00" (1/1) ... [2019-11-24 17:48:00,581 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 17:48:00,653 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 17:48:01,137 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 17:48:01,153 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 17:48:01,255 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 17:48:01,294 INFO L208 MainTranslator]: Completed translation [2019-11-24 17:48:01,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:48:01 WrapperNode [2019-11-24 17:48:01,295 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 17:48:01,297 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 17:48:01,297 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 17:48:01,297 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 17:48:01,306 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:48:01" (1/1) ... [2019-11-24 17:48:01,332 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:48:01" (1/1) ... [2019-11-24 17:48:01,385 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 17:48:01,385 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 17:48:01,385 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 17:48:01,386 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 17:48:01,396 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:48:01" (1/1) ... [2019-11-24 17:48:01,396 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:48:01" (1/1) ... [2019-11-24 17:48:01,402 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:48:01" (1/1) ... [2019-11-24 17:48:01,403 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:48:01" (1/1) ... [2019-11-24 17:48:01,417 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:48:01" (1/1) ... [2019-11-24 17:48:01,427 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:48:01" (1/1) ... [2019-11-24 17:48:01,430 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:48:01" (1/1) ... [2019-11-24 17:48:01,436 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 17:48:01,436 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-24 17:48:01,436 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-24 17:48:01,436 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-24 17:48:01,437 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:48:01" (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 17:48:01,500 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-24 17:48:01,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-24 17:48:01,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-24 17:48:01,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-24 17:48:03,949 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-24 17:48:03,950 INFO L284 CfgBuilder]: Removed 194 assume(true) statements. [2019-11-24 17:48:03,951 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 05:48:03 BoogieIcfgContainer [2019-11-24 17:48:03,951 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-24 17:48:03,951 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-11-24 17:48:03,952 INFO L271 PluginConnector]: Initializing Sifa... [2019-11-24 17:48:03,952 INFO L275 PluginConnector]: Sifa initialized [2019-11-24 17:48:03,953 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 05:48:03" (1/1) ... [2019-11-24 17:48:03,954 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 17:48:03,977 INFO L159 IcfgInterpreter]: Started Sifa with 3 locations of interest [2019-11-24 17:48:03,977 INFO L166 IcfgInterpreter]: Building call graph [2019-11-24 17:48:03,985 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-24 17:48:03,993 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-24 17:48:03,994 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-24 17:48:13,234 WARN L192 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 476 [2019-11-24 17:48:14,959 WARN L192 SmtUtils]: Spent 491.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-11-24 17:48:15,102 WARN L192 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 484 [2019-11-24 17:48:15,445 WARN L192 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 603 DAG size of output: 603 [2019-11-24 17:48:15,671 WARN L192 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 603 DAG size of output: 603 [2019-11-24 17:48:15,855 WARN L192 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 603 [2019-11-24 17:48:16,380 WARN L192 SmtUtils]: Spent 521.00 ms on a formula simplification. DAG size of input: 607 DAG size of output: 605 [2019-11-24 17:48:16,789 WARN L192 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 607 DAG size of output: 605 [2019-11-24 17:48:17,205 WARN L192 SmtUtils]: Spent 413.00 ms on a formula simplification that was a NOOP. DAG size: 605 [2019-11-24 17:48:17,642 WARN L192 SmtUtils]: Spent 398.00 ms on a formula simplification that was a NOOP. DAG size: 606 [2019-11-24 17:48:18,844 WARN L192 SmtUtils]: Spent 641.00 ms on a formula simplification that was a NOOP. DAG size: 706 [2019-11-24 17:48:24,401 WARN L192 SmtUtils]: Spent 4.70 s on a formula simplification. DAG size of input: 1005 DAG size of output: 956 [2019-11-24 17:48:28,657 WARN L192 SmtUtils]: Spent 4.25 s on a formula simplification. DAG size of input: 1005 DAG size of output: 956 [2019-11-24 17:48:32,560 WARN L192 SmtUtils]: Spent 3.89 s on a formula simplification. DAG size of input: 947 DAG size of output: 945 [2019-11-24 17:48:39,541 WARN L192 SmtUtils]: Spent 6.97 s on a formula simplification. DAG size of input: 1230 DAG size of output: 1172 [2019-11-24 17:48:46,669 WARN L192 SmtUtils]: Spent 7.11 s on a formula simplification. DAG size of input: 1230 DAG size of output: 1172 [2019-11-24 17:48:53,209 WARN L192 SmtUtils]: Spent 6.53 s on a formula simplification. DAG size of input: 1096 DAG size of output: 1087 [2019-11-24 17:49:00,589 WARN L192 SmtUtils]: Spent 7.27 s on a formula simplification. DAG size of input: 1077 DAG size of output: 1075 [2019-11-24 17:49:01,340 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-24 17:49:01,371 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-24 17:49:20,093 WARN L192 SmtUtils]: Spent 8.61 s on a formula simplification. DAG size of input: 1078 DAG size of output: 1076