/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/loop-invgen/nested6.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-24 16:29:36,887 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 16:29:36,889 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 16:29:36,901 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-24 16:29:36,901 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-24 16:29:36,902 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-24 16:29:36,904 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-24 16:29:36,905 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-24 16:29:36,907 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-24 16:29:36,908 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-24 16:29:36,909 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-24 16:29:36,910 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-24 16:29:36,910 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 16:29:36,911 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 16:29:36,912 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 16:29:36,913 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 16:29:36,914 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 16:29:36,915 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 16:29:36,917 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 16:29:36,919 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 16:29:36,920 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 16:29:36,921 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 16:29:36,922 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 16:29:36,923 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 16:29:36,925 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-24 16:29:36,926 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-24 16:29:36,926 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-24 16:29:36,927 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-24 16:29:36,927 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-24 16:29:36,928 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-24 16:29:36,928 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-24 16:29:36,929 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-24 16:29:36,930 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-24 16:29:36,930 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-24 16:29:36,931 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-24 16:29:36,932 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-24 16:29:36,932 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-24 16:29:36,933 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-24 16:29:36,933 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-24 16:29:36,934 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-24 16:29:36,934 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-24 16:29:36,935 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 16:29:36,950 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 16:29:36,950 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 16:29:36,951 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-24 16:29:36,951 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-24 16:29:36,951 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-24 16:29:36,951 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-24 16:29:36,952 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-24 16:29:36,952 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-24 16:29:36,952 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-24 16:29:36,952 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-24 16:29:36,952 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-24 16:29:36,953 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-24 16:29:36,953 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-24 16:29:36,953 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-24 16:29:36,953 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-24 16:29:36,954 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 16:29:36,954 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 16:29:36,954 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 16:29:36,954 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 16:29:36,955 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 16:29:36,955 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 16:29:36,955 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 16:29:36,955 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 16:29:36,955 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 16:29:36,956 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 16:29:36,956 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 16:29:36,956 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 16:29:36,956 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 16:29:36,956 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 16:29:36,957 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 16:29:36,957 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 16:29:36,957 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 16:29:36,957 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 16:29:36,957 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-24 16:29:36,958 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 16:29:36,958 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 16:29:36,958 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 16:29:36,958 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-24 16:29:37,262 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 16:29:37,282 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 16:29:37,285 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 16:29:37,287 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 16:29:37,287 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 16:29:37,288 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/nested6.i [2019-11-24 16:29:37,353 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/289577eb7/772d2b2e33d843a3ae70d7437f4bf111/FLAG98f783d65 [2019-11-24 16:29:37,783 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 16:29:37,783 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/nested6.i [2019-11-24 16:29:37,789 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/289577eb7/772d2b2e33d843a3ae70d7437f4bf111/FLAG98f783d65 [2019-11-24 16:29:38,176 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/289577eb7/772d2b2e33d843a3ae70d7437f4bf111 [2019-11-24 16:29:38,184 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 16:29:38,185 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-24 16:29:38,186 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 16:29:38,186 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 16:29:38,190 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 16:29:38,191 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 04:29:38" (1/1) ... [2019-11-24 16:29:38,193 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e70db69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:29:38, skipping insertion in model container [2019-11-24 16:29:38,194 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 04:29:38" (1/1) ... [2019-11-24 16:29:38,201 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 16:29:38,219 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 16:29:38,420 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 16:29:38,424 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 16:29:38,449 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 16:29:38,460 INFO L208 MainTranslator]: Completed translation [2019-11-24 16:29:38,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:29:38 WrapperNode [2019-11-24 16:29:38,461 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 16:29:38,461 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 16:29:38,461 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 16:29:38,462 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 16:29:38,468 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:29:38" (1/1) ... [2019-11-24 16:29:38,472 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:29:38" (1/1) ... [2019-11-24 16:29:38,586 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 16:29:38,587 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 16:29:38,587 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 16:29:38,587 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 16:29:38,595 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:29:38" (1/1) ... [2019-11-24 16:29:38,595 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:29:38" (1/1) ... [2019-11-24 16:29:38,596 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:29:38" (1/1) ... [2019-11-24 16:29:38,596 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:29:38" (1/1) ... [2019-11-24 16:29:38,598 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:29:38" (1/1) ... [2019-11-24 16:29:38,603 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:29:38" (1/1) ... [2019-11-24 16:29:38,604 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:29:38" (1/1) ... [2019-11-24 16:29:38,606 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 16:29:38,606 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-24 16:29:38,606 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-24 16:29:38,606 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-24 16:29:38,607 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:29:38" (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 16:29:38,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-24 16:29:38,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-24 16:29:38,937 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-24 16:29:38,937 INFO L284 CfgBuilder]: Removed 13 assume(true) statements. [2019-11-24 16:29:38,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 04:29:38 BoogieIcfgContainer [2019-11-24 16:29:38,939 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-24 16:29:38,939 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-11-24 16:29:38,939 INFO L271 PluginConnector]: Initializing Sifa... [2019-11-24 16:29:38,939 INFO L275 PluginConnector]: Sifa initialized [2019-11-24 16:29:38,940 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 04:29:38" (1/1) ... [2019-11-24 16:29:38,941 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 16:29:38,987 INFO L159 IcfgInterpreter]: Started Sifa with 3 locations of interest [2019-11-24 16:29:38,988 INFO L166 IcfgInterpreter]: Building call graph [2019-11-24 16:29:38,995 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-24 16:29:39,002 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-24 16:29:39,003 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-24 16:29:39,361 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2019-11-24 16:29:40,462 WARN L192 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 176 [2019-11-24 16:29:40,846 WARN L192 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 195 [2019-11-24 16:29:41,015 WARN L192 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2019-11-24 16:29:41,248 WARN L192 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 275 DAG size of output: 255 [2019-11-24 16:29:41,498 WARN L192 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 252 DAG size of output: 252 [2019-11-24 16:29:41,821 WARN L192 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 286 DAG size of output: 282 [2019-11-24 16:29:42,122 WARN L192 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 278 DAG size of output: 272 [2019-11-24 16:29:42,530 WARN L192 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 415 DAG size of output: 376 [2019-11-24 16:29:42,930 WARN L192 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 369 DAG size of output: 369 [2019-11-24 16:29:43,739 WARN L192 SmtUtils]: Spent 735.00 ms on a formula simplification. DAG size of input: 556 DAG size of output: 523 [2019-11-24 16:29:44,483 WARN L192 SmtUtils]: Spent 539.00 ms on a formula simplification. DAG size of input: 521 DAG size of output: 514 [2019-11-24 16:29:45,292 WARN L192 SmtUtils]: Spent 495.00 ms on a formula simplification. DAG size of input: 573 DAG size of output: 559 [2019-11-24 16:29:45,971 WARN L192 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 549 DAG size of output: 546 [2019-11-24 16:29:47,199 WARN L192 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 901 DAG size of output: 808 [2019-11-24 16:29:48,626 WARN L192 SmtUtils]: Spent 960.00 ms on a formula simplification. DAG size of input: 772 DAG size of output: 708 [2019-11-24 16:29:50,304 WARN L192 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 1016 DAG size of output: 913 [2019-11-24 16:29:52,574 WARN L192 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 904 DAG size of output: 904 [2019-11-24 16:29:55,357 WARN L192 SmtUtils]: Spent 1.99 s on a formula simplification. DAG size of input: 1097 DAG size of output: 1080 [2019-11-24 16:29:58,673 WARN L192 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 1066 DAG size of output: 1051 [2019-11-24 16:30:04,340 WARN L192 SmtUtils]: Spent 5.18 s on a formula simplification. DAG size of input: 1761 DAG size of output: 1599 [2019-11-24 16:30:12,882 WARN L192 SmtUtils]: Spent 3.79 s on a formula simplification. DAG size of input: 1495 DAG size of output: 1452 [2019-11-24 16:30:24,034 WARN L192 SmtUtils]: Spent 10.79 s on a formula simplification. DAG size of input: 2396 DAG size of output: 2304 [2019-11-24 16:30:43,421 WARN L192 SmtUtils]: Spent 9.55 s on a formula simplification. DAG size of input: 2287 DAG size of output: 2273 [2019-11-24 16:30:53,133 WARN L192 SmtUtils]: Spent 8.17 s on a formula simplification. DAG size of input: 2512 DAG size of output: 2473 [2019-11-24 16:30:58,149 WARN L177 XnfTransformerHelper]: Simplifying disjunction of 9740 conjuctions. This might take some time...