/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/array-examples/standard_strcmp_ground.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-24 09:44:21,113 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 09:44:21,116 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 09:44:21,130 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-24 09:44:21,130 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-24 09:44:21,131 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-24 09:44:21,132 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-24 09:44:21,134 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-24 09:44:21,136 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-24 09:44:21,137 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-24 09:44:21,138 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-24 09:44:21,139 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-24 09:44:21,139 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 09:44:21,140 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 09:44:21,141 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 09:44:21,142 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 09:44:21,143 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 09:44:21,144 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 09:44:21,145 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 09:44:21,147 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 09:44:21,149 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 09:44:21,150 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 09:44:21,151 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 09:44:21,152 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 09:44:21,155 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-24 09:44:21,155 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-24 09:44:21,155 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-24 09:44:21,156 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-24 09:44:21,157 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-24 09:44:21,158 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-24 09:44:21,158 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-24 09:44:21,159 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-24 09:44:21,159 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-24 09:44:21,160 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-24 09:44:21,161 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-24 09:44:21,161 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-24 09:44:21,162 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-24 09:44:21,162 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-24 09:44:21,162 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-24 09:44:21,163 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-24 09:44:21,164 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-24 09:44:21,165 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 09:44:21,179 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 09:44:21,179 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 09:44:21,180 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-24 09:44:21,180 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-24 09:44:21,180 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-24 09:44:21,181 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-24 09:44:21,181 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-24 09:44:21,181 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-24 09:44:21,181 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-24 09:44:21,181 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-24 09:44:21,182 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-24 09:44:21,182 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-24 09:44:21,182 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-24 09:44:21,182 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-24 09:44:21,182 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-24 09:44:21,183 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 09:44:21,183 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 09:44:21,183 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 09:44:21,184 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 09:44:21,184 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 09:44:21,184 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 09:44:21,184 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 09:44:21,184 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 09:44:21,185 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 09:44:21,185 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 09:44:21,185 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 09:44:21,185 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 09:44:21,185 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 09:44:21,186 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 09:44:21,186 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 09:44:21,186 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 09:44:21,186 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 09:44:21,186 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 09:44:21,187 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-24 09:44:21,187 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 09:44:21,187 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 09:44:21,187 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 09:44:21,187 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-24 09:44:21,464 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 09:44:21,476 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 09:44:21,479 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 09:44:21,480 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 09:44:21,480 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 09:44:21,481 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/standard_strcmp_ground.i [2019-11-24 09:44:21,552 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8414e6986/95a67615e6c84b89b651ac01be09ce1c/FLAG98c3ff52e [2019-11-24 09:44:22,034 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 09:44:22,035 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-examples/standard_strcmp_ground.i [2019-11-24 09:44:22,041 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8414e6986/95a67615e6c84b89b651ac01be09ce1c/FLAG98c3ff52e [2019-11-24 09:44:22,402 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8414e6986/95a67615e6c84b89b651ac01be09ce1c [2019-11-24 09:44:22,411 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 09:44:22,413 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-24 09:44:22,414 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 09:44:22,414 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 09:44:22,418 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 09:44:22,419 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:44:22" (1/1) ... [2019-11-24 09:44:22,422 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76c06a06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:44:22, skipping insertion in model container [2019-11-24 09:44:22,422 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:44:22" (1/1) ... [2019-11-24 09:44:22,430 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 09:44:22,450 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 09:44:22,657 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 09:44:22,664 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 09:44:22,682 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 09:44:22,698 INFO L208 MainTranslator]: Completed translation [2019-11-24 09:44:22,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:44:22 WrapperNode [2019-11-24 09:44:22,698 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 09:44:22,699 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 09:44:22,699 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 09:44:22,699 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 09:44:22,706 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:44:22" (1/1) ... [2019-11-24 09:44:22,798 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:44:22" (1/1) ... [2019-11-24 09:44:22,830 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 09:44:22,830 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 09:44:22,831 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 09:44:22,831 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 09:44:22,839 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:44:22" (1/1) ... [2019-11-24 09:44:22,839 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:44:22" (1/1) ... [2019-11-24 09:44:22,841 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:44:22" (1/1) ... [2019-11-24 09:44:22,842 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:44:22" (1/1) ... [2019-11-24 09:44:22,847 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:44:22" (1/1) ... [2019-11-24 09:44:22,852 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:44:22" (1/1) ... [2019-11-24 09:44:22,854 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:44:22" (1/1) ... [2019-11-24 09:44:22,858 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 09:44:22,858 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-24 09:44:22,858 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-24 09:44:22,858 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-24 09:44:22,859 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:44:22" (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 09:44:22,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-24 09:44:22,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-24 09:44:22,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-24 09:44:22,909 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-24 09:44:22,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-24 09:44:22,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-24 09:44:23,273 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-24 09:44:23,274 INFO L284 CfgBuilder]: Removed 11 assume(true) statements. [2019-11-24 09:44:23,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 09:44:23 BoogieIcfgContainer [2019-11-24 09:44:23,275 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-24 09:44:23,275 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-11-24 09:44:23,276 INFO L271 PluginConnector]: Initializing Sifa... [2019-11-24 09:44:23,276 INFO L275 PluginConnector]: Sifa initialized [2019-11-24 09:44:23,277 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 09:44:23" (1/1) ... [2019-11-24 09:44:23,277 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 09:44:23,298 INFO L159 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-11-24 09:44:23,298 INFO L166 IcfgInterpreter]: Building call graph [2019-11-24 09:44:23,305 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-24 09:44:23,312 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-24 09:44:23,313 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-24 09:44:25,099 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 133 [2019-11-24 09:44:26,474 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 159 [2019-11-24 09:44:28,519 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 183 [2019-11-24 09:44:32,696 WARN L192 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 172 [2019-11-24 09:44:55,346 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 226 [2019-11-24 09:45:03,981 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 235 DAG size of output: 235 [2019-11-24 09:45:10,110 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 241 DAG size of output: 239 [2019-11-24 09:45:13,251 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2019-11-24 09:45:16,227 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 246 [2019-11-24 09:45:20,036 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 254 [2019-11-24 09:45:23,704 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 258 [2019-11-24 09:45:27,401 WARN L192 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 260 [2019-11-24 09:45:31,132 WARN L192 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 264 DAG size of output: 263 [2019-11-24 09:45:35,128 WARN L192 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 266 DAG size of output: 265 [2019-11-24 09:45:39,002 WARN L192 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 270 DAG size of output: 269 [2019-11-24 09:45:42,941 WARN L192 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 272 DAG size of output: 271 [2019-11-24 09:45:47,470 WARN L192 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 280 DAG size of output: 279 [2019-11-24 09:45:51,922 WARN L192 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 285 DAG size of output: 284