/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/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--gameport--ns558.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-24 12:53:17,376 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 12:53:17,379 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 12:53:17,399 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-24 12:53:17,400 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-24 12:53:17,401 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-24 12:53:17,403 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-24 12:53:17,413 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-24 12:53:17,417 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-24 12:53:17,420 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-24 12:53:17,422 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-24 12:53:17,424 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-24 12:53:17,424 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 12:53:17,426 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 12:53:17,428 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 12:53:17,429 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 12:53:17,431 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 12:53:17,432 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 12:53:17,433 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 12:53:17,438 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 12:53:17,442 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 12:53:17,446 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 12:53:17,447 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 12:53:17,448 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 12:53:17,450 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-24 12:53:17,450 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-24 12:53:17,450 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-24 12:53:17,454 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-24 12:53:17,455 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-24 12:53:17,456 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-24 12:53:17,456 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-24 12:53:17,457 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-24 12:53:17,458 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-24 12:53:17,459 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-24 12:53:17,460 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-24 12:53:17,460 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-24 12:53:17,461 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-24 12:53:17,461 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-24 12:53:17,461 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-24 12:53:17,462 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-24 12:53:17,463 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-24 12:53:17,464 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 12:53:17,490 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 12:53:17,490 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 12:53:17,491 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-24 12:53:17,492 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-24 12:53:17,492 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-24 12:53:17,492 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-24 12:53:17,492 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-24 12:53:17,492 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-24 12:53:17,493 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-24 12:53:17,493 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-24 12:53:17,493 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-24 12:53:17,493 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-24 12:53:17,493 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-24 12:53:17,493 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-24 12:53:17,494 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-24 12:53:17,494 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 12:53:17,495 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 12:53:17,495 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 12:53:17,495 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 12:53:17,495 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 12:53:17,495 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 12:53:17,496 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 12:53:17,496 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 12:53:17,496 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 12:53:17,496 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 12:53:17,496 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 12:53:17,496 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 12:53:17,497 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 12:53:17,497 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 12:53:17,497 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 12:53:17,497 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 12:53:17,497 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 12:53:17,498 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 12:53:17,498 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-24 12:53:17,498 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 12:53:17,498 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 12:53:17,499 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 12:53:17,499 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-24 12:53:17,780 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 12:53:17,800 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 12:53:17,803 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 12:53:17,805 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 12:53:17,805 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 12:53:17,806 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--gameport--ns558.ko-entry_point.cil.out.i [2019-11-24 12:53:17,882 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/738376e88/16834b8ed87c42a9979634ae60f2ab9b/FLAG7e2932c92 [2019-11-24 12:53:18,491 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 12:53:18,492 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--gameport--ns558.ko-entry_point.cil.out.i [2019-11-24 12:53:18,524 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/738376e88/16834b8ed87c42a9979634ae60f2ab9b/FLAG7e2932c92 [2019-11-24 12:53:18,721 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/738376e88/16834b8ed87c42a9979634ae60f2ab9b [2019-11-24 12:53:18,729 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 12:53:18,731 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-24 12:53:18,732 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 12:53:18,732 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 12:53:18,735 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 12:53:18,736 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:53:18" (1/1) ... [2019-11-24 12:53:18,739 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57a17a7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:53:18, skipping insertion in model container [2019-11-24 12:53:18,739 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:53:18" (1/1) ... [2019-11-24 12:53:18,746 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 12:53:18,820 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 12:53:19,282 WARN L1172 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [1323] [2019-11-24 12:53:19,282 WARN L1172 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [1324-1325] [2019-11-24 12:53:19,524 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 12:53:19,562 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 12:53:19,671 WARN L1172 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [1323] [2019-11-24 12:53:19,672 WARN L1172 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [1324-1325] [2019-11-24 12:53:19,805 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 12:53:19,904 INFO L208 MainTranslator]: Completed translation [2019-11-24 12:53:19,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:53:19 WrapperNode [2019-11-24 12:53:19,904 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 12:53:19,905 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 12:53:19,905 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 12:53:19,906 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 12:53:19,916 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:53:19" (1/1) ... [2019-11-24 12:53:19,967 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:53:19" (1/1) ... [2019-11-24 12:53:20,052 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 12:53:20,052 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 12:53:20,053 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 12:53:20,053 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 12:53:20,065 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:53:19" (1/1) ... [2019-11-24 12:53:20,065 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:53:19" (1/1) ... [2019-11-24 12:53:20,090 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:53:19" (1/1) ... [2019-11-24 12:53:20,090 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:53:19" (1/1) ... [2019-11-24 12:53:20,164 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:53:19" (1/1) ... [2019-11-24 12:53:20,183 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:53:19" (1/1) ... [2019-11-24 12:53:20,197 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:53:19" (1/1) ... [2019-11-24 12:53:20,215 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 12:53:20,216 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-24 12:53:20,216 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-24 12:53:20,216 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-24 12:53:20,217 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:53:19" (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 12:53:20,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-24 12:53:20,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-24 12:53:20,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-24 12:53:20,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-24 12:53:20,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-24 12:53:20,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-24 12:53:20,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-24 12:53:20,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-24 12:53:20,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-24 12:53:20,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-24 12:53:20,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-24 12:53:23,511 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-24 12:53:23,512 INFO L284 CfgBuilder]: Removed 188 assume(true) statements. [2019-11-24 12:53:23,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:53:23 BoogieIcfgContainer [2019-11-24 12:53:23,513 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-24 12:53:23,514 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-11-24 12:53:23,514 INFO L271 PluginConnector]: Initializing Sifa... [2019-11-24 12:53:23,514 INFO L275 PluginConnector]: Sifa initialized [2019-11-24 12:53:23,516 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:53:23" (1/1) ... [2019-11-24 12:53:23,516 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 12:53:23,543 INFO L159 IcfgInterpreter]: Started Sifa with 4 locations of interest [2019-11-24 12:53:23,543 INFO L166 IcfgInterpreter]: Building call graph [2019-11-24 12:53:23,551 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-24 12:53:23,557 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-24 12:53:23,559 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-24 12:53:26,036 WARN L192 SmtUtils]: Spent 668.00 ms on a formula simplification that was a NOOP. DAG size: 1270 [2019-11-24 12:53:26,588 WARN L192 SmtUtils]: Spent 450.00 ms on a formula simplification that was a NOOP. DAG size: 1276 [2019-11-24 12:53:27,665 WARN L192 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 51 [2019-11-24 12:53:28,022 WARN L192 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 1273 [2019-11-24 12:53:28,228 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 12:53:30,333 WARN L192 SmtUtils]: Spent 1.32 s on a formula simplification that was a NOOP. DAG size: 461 [2019-11-24 12:53:31,021 WARN L192 SmtUtils]: Spent 654.00 ms on a formula simplification that was a NOOP. DAG size: 1660 [2019-11-24 12:53:32,066 WARN L192 SmtUtils]: Spent 550.00 ms on a formula simplification that was a NOOP. DAG size: 1657 [2019-11-24 12:53:32,097 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 78