/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/list-simple/sll2n_append_equal.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-24 16:16:17,180 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 16:16:17,182 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 16:16:17,199 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-24 16:16:17,199 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-24 16:16:17,200 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-24 16:16:17,201 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-24 16:16:17,203 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-24 16:16:17,205 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-24 16:16:17,205 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-24 16:16:17,206 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-24 16:16:17,207 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-24 16:16:17,208 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 16:16:17,209 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 16:16:17,209 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 16:16:17,211 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 16:16:17,211 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 16:16:17,212 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 16:16:17,214 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 16:16:17,216 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 16:16:17,217 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 16:16:17,218 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 16:16:17,219 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 16:16:17,220 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 16:16:17,222 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-24 16:16:17,225 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-24 16:16:17,226 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-24 16:16:17,227 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-24 16:16:17,228 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-24 16:16:17,229 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-24 16:16:17,229 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-24 16:16:17,230 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-24 16:16:17,230 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-24 16:16:17,230 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-24 16:16:17,231 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-24 16:16:17,232 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-24 16:16:17,232 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 16:16:17,250 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 16:16:17,250 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 16:16:17,253 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-24 16:16:17,253 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-24 16:16:17,254 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-24 16:16:17,254 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-24 16:16:17,254 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-24 16:16:17,254 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-24 16:16:17,254 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-24 16:16:17,255 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-24 16:16:17,255 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-24 16:16:17,255 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-24 16:16:17,255 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-24 16:16:17,255 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-24 16:16:17,256 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-24 16:16:17,256 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 16:16:17,256 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 16:16:17,257 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 16:16:17,257 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 16:16:17,259 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 16:16:17,259 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 16:16:17,259 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 16:16:17,259 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 16:16:17,260 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 16:16:17,260 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 16:16:17,260 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 16:16:17,261 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 16:16:17,261 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 16:16:17,261 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 16:16:17,261 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 16:16:17,261 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 16:16:17,262 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 16:16:17,262 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 16:16:17,262 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-24 16:16:17,262 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 16:16:17,262 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 16:16:17,263 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 16:16:17,264 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-24 16:16:17,528 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 16:16:17,542 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 16:16:17,545 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 16:16:17,546 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 16:16:17,547 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 16:16:17,547 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/sll2n_append_equal.i [2019-11-24 16:16:17,606 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c90b6ef07/89f79208132f4975bc51235962d947f0/FLAG5cde64e6b [2019-11-24 16:16:18,124 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 16:16:18,125 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-simple/sll2n_append_equal.i [2019-11-24 16:16:18,152 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c90b6ef07/89f79208132f4975bc51235962d947f0/FLAG5cde64e6b [2019-11-24 16:16:18,435 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c90b6ef07/89f79208132f4975bc51235962d947f0 [2019-11-24 16:16:18,445 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 16:16:18,448 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-24 16:16:18,451 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 16:16:18,452 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 16:16:18,455 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 16:16:18,456 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 04:16:18" (1/1) ... [2019-11-24 16:16:18,459 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44059148 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:16:18, skipping insertion in model container [2019-11-24 16:16:18,460 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 04:16:18" (1/1) ... [2019-11-24 16:16:18,468 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 16:16:18,520 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 16:16:18,989 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 16:16:19,002 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 16:16:19,074 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 16:16:19,126 INFO L208 MainTranslator]: Completed translation [2019-11-24 16:16:19,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:16:19 WrapperNode [2019-11-24 16:16:19,127 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 16:16:19,128 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 16:16:19,128 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 16:16:19,128 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 16:16:19,137 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:16:19" (1/1) ... [2019-11-24 16:16:19,158 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:16:19" (1/1) ... [2019-11-24 16:16:19,186 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 16:16:19,186 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 16:16:19,186 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 16:16:19,186 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 16:16:19,196 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:16:19" (1/1) ... [2019-11-24 16:16:19,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:16:19" (1/1) ... [2019-11-24 16:16:19,200 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:16:19" (1/1) ... [2019-11-24 16:16:19,201 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:16:19" (1/1) ... [2019-11-24 16:16:19,209 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:16:19" (1/1) ... [2019-11-24 16:16:19,218 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:16:19" (1/1) ... [2019-11-24 16:16:19,221 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:16:19" (1/1) ... [2019-11-24 16:16:19,224 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 16:16:19,225 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-24 16:16:19,225 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-24 16:16:19,225 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-24 16:16:19,226 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:16:19" (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 16:16:19,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-24 16:16:19,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-24 16:16:19,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-24 16:16:19,286 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-24 16:16:19,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-24 16:16:19,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-24 16:16:19,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-24 16:16:19,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-24 16:16:19,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-24 16:16:19,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-24 16:16:19,847 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-24 16:16:19,847 INFO L284 CfgBuilder]: Removed 22 assume(true) statements. [2019-11-24 16:16:19,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 04:16:19 BoogieIcfgContainer [2019-11-24 16:16:19,849 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-24 16:16:19,849 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-11-24 16:16:19,849 INFO L271 PluginConnector]: Initializing Sifa... [2019-11-24 16:16:19,850 INFO L275 PluginConnector]: Sifa initialized [2019-11-24 16:16:19,851 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 04:16:19" (1/1) ... [2019-11-24 16:16:19,851 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 16:16:19,878 INFO L159 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-11-24 16:16:19,878 INFO L166 IcfgInterpreter]: Building call graph [2019-11-24 16:16:19,886 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-24 16:16:19,894 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-24 16:16:19,895 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-24 16:16:20,267 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 16:16:21,039 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 16:16:21,352 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 16:16:22,196 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 16:16:22,426 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 16:16:22,640 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 16:16:23,152 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 16:16:23,220 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 16:16:23,557 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 16:16:23,845 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 16:16:24,058 WARN L192 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 230 [2019-11-24 16:16:24,365 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 16:16:24,412 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 16:16:24,538 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 16:16:24,564 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 16:16:24,592 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 16:16:24,928 WARN L192 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2019-11-24 16:16:25,297 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 11 [2019-11-24 16:16:26,789 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 11 [2019-11-24 16:16:28,987 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 177 [2019-11-24 16:16:29,570 WARN L192 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 284 DAG size of output: 276 [2019-11-24 16:16:29,955 WARN L192 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 276 DAG size of output: 271 [2019-11-24 16:16:30,496 WARN L192 SmtUtils]: Spent 462.00 ms on a formula simplification. DAG size of input: 412 DAG size of output: 394 [2019-11-24 16:16:31,435 WARN L192 SmtUtils]: Spent 670.00 ms on a formula simplification. DAG size of input: 393 DAG size of output: 393 [2019-11-24 16:16:32,871 WARN L192 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 707 DAG size of output: 669 [2019-11-24 16:16:34,985 WARN L192 SmtUtils]: Spent 1.61 s on a formula simplification. DAG size of input: 665 DAG size of output: 662 [2019-11-24 16:16:37,792 WARN L192 SmtUtils]: Spent 2.49 s on a formula simplification. DAG size of input: 1068 DAG size of output: 992 [2019-11-24 16:16:42,422 WARN L192 SmtUtils]: Spent 3.47 s on a formula simplification. DAG size of input: 982 DAG size of output: 982 [2019-11-24 16:16:50,145 WARN L192 SmtUtils]: Spent 7.02 s on a formula simplification. DAG size of input: 1616 DAG size of output: 1608 [2019-11-24 16:17:04,207 WARN L192 SmtUtils]: Spent 8.71 s on a formula simplification. DAG size of input: 1609 DAG size of output: 1608 [2019-11-24 16:17:42,438 WARN L192 SmtUtils]: Spent 36.49 s on a formula simplification that was a NOOP. DAG size: 3735 [2019-11-24 16:17:55,271 WARN L177 XnfTransformerHelper]: Simplifying disjunction of 5469 conjuctions. This might take some time...