/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/SifaC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/ssh-simplified/s3_clnt_4.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 11:05:33,164 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 11:05:33,167 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 11:05:33,188 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 11:05:33,188 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 11:05:33,190 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 11:05:33,192 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 11:05:33,204 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 11:05:33,206 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 11:05:33,207 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 11:05:33,208 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 11:05:33,210 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 11:05:33,210 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 11:05:33,213 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 11:05:33,215 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 11:05:33,217 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 11:05:33,219 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 11:05:33,221 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 11:05:33,223 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 11:05:33,228 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 11:05:33,232 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 11:05:33,233 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 11:05:33,233 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 11:05:33,234 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 11:05:33,236 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 11:05:33,236 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 11:05:33,236 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 11:05:33,237 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 11:05:33,237 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 11:05:33,238 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 11:05:33,239 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 11:05:33,239 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 11:05:33,240 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 11:05:33,241 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 11:05:33,242 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 11:05:33,243 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 11:05:33,243 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 11:05:33,244 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 11:05:33,244 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 11:05:33,245 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 11:05:33,245 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 11:05:33,246 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 [2019-11-07 11:05:33,260 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 11:05:33,260 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 11:05:33,261 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 11:05:33,262 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 11:05:33,262 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 11:05:33,262 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 11:05:33,262 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 11:05:33,262 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 11:05:33,263 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 11:05:33,263 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 11:05:33,263 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 11:05:33,263 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 11:05:33,263 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 11:05:33,264 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 11:05:33,264 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 11:05:33,264 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 11:05:33,264 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 11:05:33,264 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 11:05:33,265 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 11:05:33,265 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 11:05:33,265 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 11:05:33,265 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 11:05:33,265 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 11:05:33,266 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 11:05:33,266 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 11:05:33,266 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 11:05:33,266 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 11:05:33,266 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 11:05:33,266 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain 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 -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-11-07 11:05:33,544 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 11:05:33,563 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 11:05:33,566 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 11:05:33,567 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 11:05:33,568 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 11:05:33,569 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_clnt_4.cil-2.c [2019-11-07 11:05:33,635 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a254b3eab/d44a3f9fcc9545f48edc258c25165ce4/FLAG9930abe7e [2019-11-07 11:05:34,104 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 11:05:34,105 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ssh-simplified/s3_clnt_4.cil-2.c [2019-11-07 11:05:34,115 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a254b3eab/d44a3f9fcc9545f48edc258c25165ce4/FLAG9930abe7e [2019-11-07 11:05:34,480 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a254b3eab/d44a3f9fcc9545f48edc258c25165ce4 [2019-11-07 11:05:34,490 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 11:05:34,491 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 11:05:34,492 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 11:05:34,492 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 11:05:34,495 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 11:05:34,496 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:05:34" (1/1) ... [2019-11-07 11:05:34,499 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dd5431d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:05:34, skipping insertion in model container [2019-11-07 11:05:34,499 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:05:34" (1/1) ... [2019-11-07 11:05:34,506 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 11:05:34,558 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 11:05:34,828 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 11:05:34,832 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 11:05:34,967 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 11:05:34,982 INFO L192 MainTranslator]: Completed translation [2019-11-07 11:05:34,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:05:34 WrapperNode [2019-11-07 11:05:34,986 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 11:05:34,987 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 11:05:34,987 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 11:05:34,987 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 11:05:35,001 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:05:34" (1/1) ... [2019-11-07 11:05:35,002 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:05:34" (1/1) ... [2019-11-07 11:05:35,027 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:05:34" (1/1) ... [2019-11-07 11:05:35,027 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:05:34" (1/1) ... [2019-11-07 11:05:35,047 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:05:34" (1/1) ... [2019-11-07 11:05:35,058 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:05:34" (1/1) ... [2019-11-07 11:05:35,061 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:05:34" (1/1) ... [2019-11-07 11:05:35,069 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 11:05:35,069 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 11:05:35,069 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 11:05:35,070 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 11:05:35,071 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:05:34" (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 [2019-11-07 11:05:35,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 11:05:35,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 11:05:35,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2019-11-07 11:05:35,123 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 11:05:35,123 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 11:05:35,124 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-11-07 11:05:35,124 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 11:05:35,124 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2019-11-07 11:05:35,124 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-07 11:05:35,124 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2019-11-07 11:05:35,125 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 11:05:35,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 11:05:35,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 11:05:35,290 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-07 11:05:35,859 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2019-11-07 11:05:35,859 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2019-11-07 11:05:36,262 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 11:05:36,263 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-07 11:05:36,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:05:36 BoogieIcfgContainer [2019-11-07 11:05:36,265 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 11:05:36,265 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-11-07 11:05:36,265 INFO L271 PluginConnector]: Initializing Sifa... [2019-11-07 11:05:36,265 INFO L275 PluginConnector]: Sifa initialized [2019-11-07 11:05:36,267 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:05:36" (1/1) ... [2019-11-07 11:05:36,267 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 [2019-11-07 11:05:36,292 INFO L159 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-11-07 11:05:36,293 INFO L166 IcfgInterpreter]: Building call graph [2019-11-07 11:05:36,301 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-07 11:05:36,309 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-07 11:05:36,311 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-07 11:05:36,352 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 1 for LOIs [2019-11-07 11:05:36,362 INFO L197 IcfgInterpreter]: Interpreting procedure ssl3_connect with input of size 3 for LOIs [2019-11-07 11:05:42,474 WARN L191 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-11-07 11:05:42,792 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 197 [2019-11-07 11:05:42,916 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2019-11-07 11:05:43,119 WARN L191 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 202 [2019-11-07 11:05:43,631 WARN L191 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 217 [2019-11-07 11:05:43,839 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 235 [2019-11-07 11:05:44,990 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 254 DAG size of output: 253 [2019-11-07 11:05:47,274 WARN L191 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 260 [2019-11-07 11:05:51,804 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 227 [2019-11-07 11:05:52,133 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 256 [2019-11-07 11:05:53,440 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2019-11-07 11:05:53,625 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 227 DAG size of output: 226 [2019-11-07 11:05:55,248 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 245 DAG size of output: 244 [2019-11-07 11:05:55,622 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 239 DAG size of output: 238 [2019-11-07 11:06:02,734 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 257