/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/reducercommutativity/sum40-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-24 18:30:04,887 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 18:30:04,890 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 18:30:04,908 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-24 18:30:04,908 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-24 18:30:04,910 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-24 18:30:04,912 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-24 18:30:04,921 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-24 18:30:04,925 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-24 18:30:04,928 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-24 18:30:04,930 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-24 18:30:04,932 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-24 18:30:04,932 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 18:30:04,934 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 18:30:04,937 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 18:30:04,938 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 18:30:04,939 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 18:30:04,941 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 18:30:04,942 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 18:30:04,947 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 18:30:04,952 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 18:30:04,955 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 18:30:04,956 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 18:30:04,956 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 18:30:04,959 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-24 18:30:04,959 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-24 18:30:04,960 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-24 18:30:04,961 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-24 18:30:04,963 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-24 18:30:04,964 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-24 18:30:04,964 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-24 18:30:04,966 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-24 18:30:04,966 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-24 18:30:04,967 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-24 18:30:04,968 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-24 18:30:04,969 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-24 18:30:04,969 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-24 18:30:04,970 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-24 18:30:04,970 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-24 18:30:04,972 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-24 18:30:04,973 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-24 18:30:04,974 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 18:30:04,991 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 18:30:04,992 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 18:30:04,992 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-24 18:30:04,993 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-24 18:30:04,993 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-24 18:30:04,993 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-24 18:30:04,993 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-24 18:30:04,994 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-24 18:30:04,994 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-24 18:30:04,994 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-24 18:30:04,994 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-24 18:30:04,994 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-24 18:30:04,995 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-24 18:30:04,995 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-24 18:30:04,995 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-24 18:30:04,996 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 18:30:04,996 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 18:30:04,996 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 18:30:04,996 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 18:30:04,997 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 18:30:04,997 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 18:30:04,997 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 18:30:04,997 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 18:30:04,998 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 18:30:04,998 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 18:30:04,998 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 18:30:04,998 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 18:30:04,998 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 18:30:04,999 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 18:30:04,999 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 18:30:04,999 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 18:30:04,999 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 18:30:05,000 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 18:30:05,000 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-24 18:30:05,000 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 18:30:05,000 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 18:30:05,000 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 18:30:05,001 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-24 18:30:05,275 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 18:30:05,288 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 18:30:05,291 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 18:30:05,292 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 18:30:05,293 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 18:30:05,293 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/reducercommutativity/sum40-2.i [2019-11-24 18:30:05,366 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99b836b58/4c4df831cebb4728a34fe50192f5e000/FLAGeda85a685 [2019-11-24 18:30:05,816 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 18:30:05,817 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/reducercommutativity/sum40-2.i [2019-11-24 18:30:05,825 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99b836b58/4c4df831cebb4728a34fe50192f5e000/FLAGeda85a685 [2019-11-24 18:30:06,187 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99b836b58/4c4df831cebb4728a34fe50192f5e000 [2019-11-24 18:30:06,198 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 18:30:06,201 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-24 18:30:06,202 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 18:30:06,202 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 18:30:06,206 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 18:30:06,207 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 06:30:06" (1/1) ... [2019-11-24 18:30:06,210 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bc1b911 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:30:06, skipping insertion in model container [2019-11-24 18:30:06,210 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 06:30:06" (1/1) ... [2019-11-24 18:30:06,218 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 18:30:06,235 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 18:30:06,405 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 18:30:06,415 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 18:30:06,439 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 18:30:06,458 INFO L208 MainTranslator]: Completed translation [2019-11-24 18:30:06,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:30:06 WrapperNode [2019-11-24 18:30:06,459 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 18:30:06,460 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 18:30:06,460 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 18:30:06,460 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 18:30:06,469 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:30:06" (1/1) ... [2019-11-24 18:30:06,558 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:30:06" (1/1) ... [2019-11-24 18:30:06,582 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 18:30:06,583 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 18:30:06,583 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 18:30:06,583 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 18:30:06,593 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:30:06" (1/1) ... [2019-11-24 18:30:06,593 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:30:06" (1/1) ... [2019-11-24 18:30:06,595 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:30:06" (1/1) ... [2019-11-24 18:30:06,596 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:30:06" (1/1) ... [2019-11-24 18:30:06,608 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:30:06" (1/1) ... [2019-11-24 18:30:06,614 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:30:06" (1/1) ... [2019-11-24 18:30:06,615 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:30:06" (1/1) ... [2019-11-24 18:30:06,618 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 18:30:06,618 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-24 18:30:06,618 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-24 18:30:06,619 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-24 18:30:06,619 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:30:06" (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 18:30:06,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-24 18:30:06,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-24 18:30:06,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-24 18:30:06,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-24 18:30:06,672 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-24 18:30:06,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-24 18:30:07,179 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-24 18:30:07,180 INFO L284 CfgBuilder]: Removed 15 assume(true) statements. [2019-11-24 18:30:07,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 06:30:07 BoogieIcfgContainer [2019-11-24 18:30:07,181 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-24 18:30:07,182 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-11-24 18:30:07,182 INFO L271 PluginConnector]: Initializing Sifa... [2019-11-24 18:30:07,182 INFO L275 PluginConnector]: Sifa initialized [2019-11-24 18:30:07,183 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 06:30:07" (1/1) ... [2019-11-24 18:30:07,184 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 18:30:07,203 INFO L159 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-11-24 18:30:07,204 INFO L166 IcfgInterpreter]: Building call graph [2019-11-24 18:30:07,211 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-24 18:30:07,216 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-24 18:30:07,217 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-24 18:30:39,437 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 266 [2019-11-24 18:30:39,564 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 351 DAG size of output: 351 [2019-11-24 18:30:39,799 WARN L192 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 346 DAG size of output: 344 [2019-11-24 18:30:40,072 WARN L192 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 489 DAG size of output: 488 [2019-11-24 18:30:40,653 WARN L192 SmtUtils]: Spent 550.00 ms on a formula simplification. DAG size of input: 489 DAG size of output: 489 [2019-11-24 18:30:41,276 WARN L192 SmtUtils]: Spent 585.00 ms on a formula simplification. DAG size of input: 626 DAG size of output: 622 [2019-11-24 18:30:41,798 WARN L192 SmtUtils]: Spent 481.00 ms on a formula simplification. DAG size of input: 620 DAG size of output: 619 [2019-11-24 18:30:42,528 WARN L192 SmtUtils]: Spent 700.00 ms on a formula simplification. DAG size of input: 791 DAG size of output: 786 [2019-11-24 18:30:43,379 WARN L192 SmtUtils]: Spent 771.00 ms on a formula simplification. DAG size of input: 785 DAG size of output: 785 [2019-11-24 18:30:44,581 WARN L192 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 986 DAG size of output: 980 [2019-11-24 18:30:45,912 WARN L192 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 981 DAG size of output: 977 [2019-11-24 18:30:47,950 WARN L192 SmtUtils]: Spent 1.99 s on a formula simplification. DAG size of input: 1257 DAG size of output: 1253 [2019-11-24 18:30:50,187 WARN L192 SmtUtils]: Spent 2.05 s on a formula simplification. DAG size of input: 1253 DAG size of output: 1250 [2019-11-24 18:30:53,651 WARN L192 SmtUtils]: Spent 3.40 s on a formula simplification. DAG size of input: 1630 DAG size of output: 1628 [2019-11-24 18:30:57,956 WARN L192 SmtUtils]: Spent 3.89 s on a formula simplification. DAG size of input: 1627 DAG size of output: 1537 [2019-11-24 18:31:01,620 WARN L192 SmtUtils]: Spent 3.48 s on a formula simplification that was a NOOP. DAG size: 1493 [2019-11-24 18:31:05,063 WARN L192 SmtUtils]: Spent 3.44 s on a formula simplification. DAG size of input: 1494 DAG size of output: 1494 [2019-11-24 18:31:10,208 WARN L192 SmtUtils]: Spent 5.07 s on a formula simplification. DAG size of input: 1841 DAG size of output: 1839 [2019-11-24 18:31:15,853 WARN L192 SmtUtils]: Spent 5.51 s on a formula simplification. DAG size of input: 1835 DAG size of output: 1833 [2019-11-24 18:31:24,239 WARN L192 SmtUtils]: Spent 8.29 s on a formula simplification. DAG size of input: 2238 DAG size of output: 2236 [2019-11-24 18:31:34,058 WARN L192 SmtUtils]: Spent 9.61 s on a formula simplification. DAG size of input: 2230 DAG size of output: 2227