java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/SifaC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --sifa.abstract.domain ExplicitValueDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer ReUseSupersetCallSummarizer --sifa.fluid SizeLimitFluid --sifa.intern.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_DDA -i ../../../trunk/examples/svcomp/loop-industry-pattern/aiob_4.c.v+lh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-18 21:13:35,782 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-18 21:13:35,785 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-18 21:13:35,803 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-18 21:13:35,803 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-18 21:13:35,804 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-18 21:13:35,807 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-18 21:13:35,819 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-18 21:13:35,821 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-18 21:13:35,822 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-18 21:13:35,825 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-18 21:13:35,827 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-18 21:13:35,828 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-18 21:13:35,831 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-18 21:13:35,834 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-18 21:13:35,835 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-18 21:13:35,837 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-18 21:13:35,840 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-18 21:13:35,842 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-18 21:13:35,848 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-18 21:13:35,851 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-18 21:13:35,854 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-18 21:13:35,854 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-18 21:13:35,857 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-18 21:13:35,860 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-18 21:13:35,860 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-18 21:13:35,861 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-18 21:13:35,862 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-18 21:13:35,864 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-18 21:13:35,865 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-18 21:13:35,865 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-18 21:13:35,867 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-18 21:13:35,868 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-18 21:13:35,868 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-18 21:13:35,870 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-18 21:13:35,871 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-18 21:13:35,871 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-18 21:13:35,872 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-18 21:13:35,872 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-18 21:13:35,873 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-18 21:13:35,873 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-18 21:13:35,874 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-09-18 21:13:35,898 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-18 21:13:35,898 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-18 21:13:35,901 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-18 21:13:35,901 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-18 21:13:35,901 INFO L138 SettingsManager]: * Use SBE=true [2019-09-18 21:13:35,902 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-18 21:13:35,902 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-18 21:13:35,902 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-18 21:13:35,902 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-18 21:13:35,902 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-18 21:13:35,904 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-18 21:13:35,904 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-18 21:13:35,904 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-18 21:13:35,905 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-18 21:13:35,905 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-18 21:13:35,905 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-18 21:13:35,905 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-18 21:13:35,905 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-18 21:13:35,906 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-18 21:13:35,906 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-18 21:13:35,906 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-18 21:13:35,906 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-18 21:13:35,907 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-18 21:13:35,907 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-18 21:13:35,907 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-18 21:13:35,907 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-18 21:13:35,907 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-18 21:13:35,908 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-18 21:13:35,908 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> ExplicitValueDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> ReUseSupersetCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Intern Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_DDA [2019-09-18 21:13:35,966 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-18 21:13:35,981 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-18 21:13:35,987 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-18 21:13:35,989 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-18 21:13:35,990 INFO L275 PluginConnector]: CDTParser initialized [2019-09-18 21:13:35,990 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/aiob_4.c.v+lh-reducer.c [2019-09-18 21:13:36,067 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93b1a94bf/aaf76f23cf604fe8b3beea8c8042b04e/FLAGdec896d69 [2019-09-18 21:13:36,589 INFO L306 CDTParser]: Found 1 translation units. [2019-09-18 21:13:36,592 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/aiob_4.c.v+lh-reducer.c [2019-09-18 21:13:36,602 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93b1a94bf/aaf76f23cf604fe8b3beea8c8042b04e/FLAGdec896d69 [2019-09-18 21:13:36,957 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93b1a94bf/aaf76f23cf604fe8b3beea8c8042b04e [2019-09-18 21:13:36,967 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-18 21:13:36,968 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-18 21:13:36,969 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-18 21:13:36,969 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-18 21:13:36,972 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-18 21:13:36,972 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 09:13:36" (1/1) ... [2019-09-18 21:13:36,975 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e00ab7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 09:13:36, skipping insertion in model container [2019-09-18 21:13:36,975 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 09:13:36" (1/1) ... [2019-09-18 21:13:36,981 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-18 21:13:37,021 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-18 21:13:37,389 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-18 21:13:37,399 INFO L188 MainTranslator]: Completed pre-run [2019-09-18 21:13:37,473 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-18 21:13:37,490 INFO L192 MainTranslator]: Completed translation [2019-09-18 21:13:37,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 09:13:37 WrapperNode [2019-09-18 21:13:37,491 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-18 21:13:37,492 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-18 21:13:37,492 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-18 21:13:37,492 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-18 21:13:37,506 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 09:13:37" (1/1) ... [2019-09-18 21:13:37,507 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 09:13:37" (1/1) ... [2019-09-18 21:13:37,522 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 09:13:37" (1/1) ... [2019-09-18 21:13:37,522 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 09:13:37" (1/1) ... [2019-09-18 21:13:37,555 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 09:13:37" (1/1) ... [2019-09-18 21:13:37,559 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 09:13:37" (1/1) ... [2019-09-18 21:13:37,563 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 09:13:37" (1/1) ... [2019-09-18 21:13:37,569 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-18 21:13:37,569 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-18 21:13:37,570 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-18 21:13:37,570 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-18 21:13:37,571 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 09:13:37" (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 [2019-09-18 21:13:37,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-18 21:13:37,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-18 21:13:37,650 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-18 21:13:37,650 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-18 21:13:37,651 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_89 [2019-09-18 21:13:37,651 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2019-09-18 21:13:37,652 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-18 21:13:37,652 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-18 21:13:37,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-18 21:13:37,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-18 21:13:37,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-18 21:13:37,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-18 21:13:37,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-18 21:13:37,655 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-18 21:13:37,655 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-18 21:13:37,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-18 21:13:37,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-18 21:13:38,418 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-18 21:13:38,419 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-18 21:13:38,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 09:13:38 BoogieIcfgContainer [2019-09-18 21:13:38,420 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-18 21:13:38,421 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-18 21:13:38,421 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-18 21:13:38,422 INFO L275 PluginConnector]: Sifa initialized [2019-09-18 21:13:38,423 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 09:13:38" (1/1) ... [2019-09-18 21:13:38,424 INFO L79 SifaObserver]: Intern domains=ExplicitValueDomain;IntervalDomain ♦ Abstract Domain=ExplicitValueDomain ♦ Abstract when formula's dag size exceeds (negative numbers disable this limit)=-1 ♦ Fluid=SizeLimitFluid ♦ Max. Parallel Explicit Values=2 ♦ Max. Parallel Intervals=2 ♦ Loop Summarizer=FixpointLoopSummarizer ♦ Abstract when formula has more disjuncts than (negative numbers disable this limit)=8 ♦ Call Summarizer=ReUseSupersetCallSummarizer ♦ Xnf Conversion Technique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION ♦ Simplification Technique=SIMPLIFY_DDA ♦ Intern Fluid=SizeLimitFluid [2019-09-18 21:13:38,449 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-18 21:13:38,450 INFO L169 IcfgInterpreter]: Building call graph [2019-09-18 21:13:38,458 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-18 21:13:38,470 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-18 21:13:38,471 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-18 21:13:38,701 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2019-09-18 21:13:38,835 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2019-09-18 21:13:39,056 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-18 21:13:39,328 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 82 [2019-09-18 21:13:39,333 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 88 for LOIs [2019-09-18 21:14:29,408 WARN L191 SmtUtils]: Spent 24.86 s on a formula simplification that was a NOOP. DAG size: 932 [2019-09-18 21:15:05,641 WARN L191 SmtUtils]: Spent 15.60 s on a formula simplification that was a NOOP. DAG size: 971 [2019-09-18 21:15:36,935 WARN L191 SmtUtils]: Spent 31.24 s on a formula simplification. DAG size of input: 1010 DAG size of output: 981 [2019-09-18 21:15:52,351 WARN L191 SmtUtils]: Spent 15.41 s on a formula simplification that was a NOOP. DAG size: 981 [2019-09-18 21:16:44,395 WARN L191 SmtUtils]: Spent 52.03 s on a formula simplification. DAG size of input: 990 DAG size of output: 987 [2019-09-18 21:17:10,523 WARN L191 SmtUtils]: Spent 26.13 s on a formula simplification that was a NOOP. DAG size: 987 [2019-09-18 21:18:03,057 WARN L191 SmtUtils]: Spent 52.47 s on a formula simplification. DAG size of input: 1017 DAG size of output: 988 [2019-09-18 21:18:29,088 WARN L191 SmtUtils]: Spent 26.03 s on a formula simplification that was a NOOP. DAG size: 988 [2019-09-18 21:19:42,199 WARN L191 SmtUtils]: Spent 1.22 m on a formula simplification. DAG size of input: 995 DAG size of output: 994 [2019-09-18 21:20:18,794 WARN L191 SmtUtils]: Spent 36.59 s on a formula simplification that was a NOOP. DAG size: 994 [2019-09-18 21:21:32,818 WARN L191 SmtUtils]: Spent 1.23 m on a formula simplification. DAG size of input: 1022 DAG size of output: 993 [2019-09-18 21:22:09,413 WARN L191 SmtUtils]: Spent 36.59 s on a formula simplification that was a NOOP. DAG size: 993 [2019-09-18 21:23:44,273 WARN L191 SmtUtils]: Spent 1.58 m on a formula simplification. DAG size of input: 1002 DAG size of output: 999 [2019-09-18 21:24:31,489 WARN L191 SmtUtils]: Spent 47.21 s on a formula simplification that was a NOOP. DAG size: 999 [2019-09-18 21:26:06,276 WARN L191 SmtUtils]: Spent 1.58 m on a formula simplification. DAG size of input: 1024 DAG size of output: 996 [2019-09-18 21:26:53,716 WARN L191 SmtUtils]: Spent 47.44 s on a formula simplification that was a NOOP. DAG size: 996