/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-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-24 15:45:18,823 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 15:45:18,826 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 15:45:18,843 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-24 15:45:18,844 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-24 15:45:18,846 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-24 15:45:18,847 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-24 15:45:18,856 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-24 15:45:18,861 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-24 15:45:18,864 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-24 15:45:18,866 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-24 15:45:18,868 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-24 15:45:18,868 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 15:45:18,870 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 15:45:18,872 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 15:45:18,873 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 15:45:18,874 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 15:45:18,875 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 15:45:18,876 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 15:45:18,881 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 15:45:18,885 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 15:45:18,889 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 15:45:18,890 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 15:45:18,890 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 15:45:18,892 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-24 15:45:18,892 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-24 15:45:18,893 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-24 15:45:18,894 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-24 15:45:18,895 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-24 15:45:18,896 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-24 15:45:18,896 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-24 15:45:18,897 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-24 15:45:18,898 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-24 15:45:18,899 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-24 15:45:18,900 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-24 15:45:18,901 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-24 15:45:18,901 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-24 15:45:18,902 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-24 15:45:18,902 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-24 15:45:18,903 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-24 15:45:18,904 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-24 15:45:18,905 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 15:45:18,937 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 15:45:18,939 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 15:45:18,940 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-24 15:45:18,940 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-24 15:45:18,940 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-24 15:45:18,940 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-24 15:45:18,940 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-24 15:45:18,943 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-24 15:45:18,943 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-24 15:45:18,943 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-24 15:45:18,943 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-24 15:45:18,944 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-24 15:45:18,944 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-24 15:45:18,944 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-24 15:45:18,944 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-24 15:45:18,945 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 15:45:18,945 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 15:45:18,945 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 15:45:18,945 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 15:45:18,946 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 15:45:18,947 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 15:45:18,947 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 15:45:18,947 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 15:45:18,948 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 15:45:18,948 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 15:45:18,948 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 15:45:18,948 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 15:45:18,948 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 15:45:18,949 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 15:45:18,949 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 15:45:18,949 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 15:45:18,949 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 15:45:18,950 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 15:45:18,950 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-24 15:45:18,950 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 15:45:18,950 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 15:45:18,950 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 15:45:18,950 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-24 15:45:19,265 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 15:45:19,289 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 15:45:19,293 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 15:45:19,294 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 15:45:19,295 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 15:45:19,295 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i [2019-11-24 15:45:19,373 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1eb048aa6/799e8f0fdd60474cb58773e02aa95782/FLAG58ccff943 [2019-11-24 15:45:20,149 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 15:45:20,150 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i [2019-11-24 15:45:20,183 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1eb048aa6/799e8f0fdd60474cb58773e02aa95782/FLAG58ccff943 [2019-11-24 15:45:20,695 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1eb048aa6/799e8f0fdd60474cb58773e02aa95782 [2019-11-24 15:45:20,705 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 15:45:20,706 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-24 15:45:20,707 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 15:45:20,707 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 15:45:20,711 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 15:45:20,712 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 03:45:20" (1/1) ... [2019-11-24 15:45:20,715 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12d92a17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:45:20, skipping insertion in model container [2019-11-24 15:45:20,715 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 03:45:20" (1/1) ... [2019-11-24 15:45:20,723 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 15:45:20,859 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 15:45:22,185 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 15:45:22,262 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 15:45:22,614 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 15:45:22,763 INFO L208 MainTranslator]: Completed translation [2019-11-24 15:45:22,763 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:45:22 WrapperNode [2019-11-24 15:45:22,764 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 15:45:22,765 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 15:45:22,765 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 15:45:22,765 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 15:45:22,774 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:45:22" (1/1) ... [2019-11-24 15:45:22,845 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:45:22" (1/1) ... [2019-11-24 15:45:22,941 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 15:45:22,941 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 15:45:22,941 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 15:45:22,941 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 15:45:22,951 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:45:22" (1/1) ... [2019-11-24 15:45:22,952 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:45:22" (1/1) ... [2019-11-24 15:45:22,967 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:45:22" (1/1) ... [2019-11-24 15:45:22,968 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:45:22" (1/1) ... [2019-11-24 15:45:23,021 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:45:22" (1/1) ... [2019-11-24 15:45:23,033 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:45:22" (1/1) ... [2019-11-24 15:45:23,044 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:45:22" (1/1) ... [2019-11-24 15:45:23,056 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 15:45:23,056 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-24 15:45:23,057 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-24 15:45:23,057 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-24 15:45:23,058 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:45:22" (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 15:45:23,136 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-24 15:45:23,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-24 15:45:23,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-24 15:45:23,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-24 15:45:23,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-24 15:45:23,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-24 15:45:23,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-24 15:45:23,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-24 15:45:23,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-24 15:45:25,474 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-24 15:45:25,475 INFO L284 CfgBuilder]: Removed 127 assume(true) statements. [2019-11-24 15:45:25,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 03:45:25 BoogieIcfgContainer [2019-11-24 15:45:25,478 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-24 15:45:25,479 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-11-24 15:45:25,479 INFO L271 PluginConnector]: Initializing Sifa... [2019-11-24 15:45:25,479 INFO L275 PluginConnector]: Sifa initialized [2019-11-24 15:45:25,480 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 03:45:25" (1/1) ... [2019-11-24 15:45:25,481 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 15:45:25,511 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2019-11-24 15:45:25,511 INFO L166 IcfgInterpreter]: Building call graph [2019-11-24 15:45:25,524 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-24 15:45:25,533 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-24 15:45:25,535 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-24 15:45:29,485 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 15:45:31,130 WARN L192 SmtUtils]: Spent 1.64 s on a formula simplification that was a NOOP. DAG size: 2318 [2019-11-24 15:45:32,385 WARN L192 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 2331 [2019-11-24 15:45:33,418 WARN L192 SmtUtils]: Spent 836.00 ms on a formula simplification that was a NOOP. DAG size: 2344 [2019-11-24 15:45:34,418 WARN L192 SmtUtils]: Spent 841.00 ms on a formula simplification that was a NOOP. DAG size: 2357 [2019-11-24 15:45:35,381 WARN L192 SmtUtils]: Spent 769.00 ms on a formula simplification that was a NOOP. DAG size: 2370 [2019-11-24 15:45:36,342 WARN L192 SmtUtils]: Spent 807.00 ms on a formula simplification that was a NOOP. DAG size: 2383 [2019-11-24 15:45:37,319 WARN L192 SmtUtils]: Spent 844.00 ms on a formula simplification that was a NOOP. DAG size: 2396 [2019-11-24 15:45:48,165 WARN L192 SmtUtils]: Spent 869.00 ms on a formula simplification that was a NOOP. DAG size: 2416 [2019-11-24 15:45:49,197 WARN L192 SmtUtils]: Spent 896.00 ms on a formula simplification that was a NOOP. DAG size: 2429 [2019-11-24 15:45:50,267 WARN L192 SmtUtils]: Spent 934.00 ms on a formula simplification that was a NOOP. DAG size: 2442 [2019-11-24 15:45:51,354 WARN L192 SmtUtils]: Spent 940.00 ms on a formula simplification that was a NOOP. DAG size: 2455 [2019-11-24 15:45:52,449 WARN L192 SmtUtils]: Spent 974.00 ms on a formula simplification that was a NOOP. DAG size: 2468 [2019-11-24 15:45:53,601 WARN L192 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 2481 [2019-11-24 15:45:54,778 WARN L192 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 2494 [2019-11-24 15:45:58,032 WARN L192 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 2473 [2019-11-24 15:46:06,700 WARN L192 SmtUtils]: Spent 930.00 ms on a formula simplification that was a NOOP. DAG size: 289 [2019-11-24 15:46:08,396 WARN L192 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 2604 DAG size of output: 2564 [2019-11-24 15:46:15,170 WARN L192 SmtUtils]: Spent 1.28 s on a formula simplification that was a NOOP. DAG size: 2562 [2019-11-24 15:46:51,473 WARN L192 SmtUtils]: Spent 1.25 s on a formula simplification that was a NOOP. DAG size: 2560 [2019-11-24 15:46:51,504 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 31