/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/nla-digbench/bresenham.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-24 16:43:00,395 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 16:43:00,397 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 16:43:00,409 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-24 16:43:00,409 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-24 16:43:00,410 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-24 16:43:00,412 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-24 16:43:00,413 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-24 16:43:00,415 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-24 16:43:00,416 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-24 16:43:00,417 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-24 16:43:00,418 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-24 16:43:00,418 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 16:43:00,419 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 16:43:00,420 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 16:43:00,421 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 16:43:00,422 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 16:43:00,423 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 16:43:00,425 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 16:43:00,427 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 16:43:00,428 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 16:43:00,429 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 16:43:00,430 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 16:43:00,431 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 16:43:00,433 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-24 16:43:00,433 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-24 16:43:00,433 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-24 16:43:00,434 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-24 16:43:00,435 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-24 16:43:00,436 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-24 16:43:00,436 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-24 16:43:00,437 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-24 16:43:00,437 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-24 16:43:00,438 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-24 16:43:00,439 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-24 16:43:00,439 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-24 16:43:00,440 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-24 16:43:00,440 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-24 16:43:00,440 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-24 16:43:00,441 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-24 16:43:00,442 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-24 16:43:00,443 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 16:43:00,457 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 16:43:00,457 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 16:43:00,458 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-24 16:43:00,459 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-24 16:43:00,461 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-24 16:43:00,461 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-24 16:43:00,462 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-24 16:43:00,462 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-24 16:43:00,462 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-24 16:43:00,462 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-24 16:43:00,462 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-24 16:43:00,463 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-24 16:43:00,463 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-24 16:43:00,463 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-24 16:43:00,463 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-24 16:43:00,466 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 16:43:00,466 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 16:43:00,466 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 16:43:00,466 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 16:43:00,467 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 16:43:00,467 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 16:43:00,467 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 16:43:00,467 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 16:43:00,468 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 16:43:00,468 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 16:43:00,468 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 16:43:00,469 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 16:43:00,469 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 16:43:00,470 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 16:43:00,470 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 16:43:00,470 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 16:43:00,470 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 16:43:00,471 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 16:43:00,471 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-24 16:43:00,471 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 16:43:00,471 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 16:43:00,472 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 16:43:00,472 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-24 16:43:00,780 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 16:43:00,803 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 16:43:00,807 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 16:43:00,808 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 16:43:00,809 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 16:43:00,809 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench/bresenham.c [2019-11-24 16:43:00,888 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ee57267a/616fc54140854a958176459a89a2469f/FLAGe35c2eaa8 [2019-11-24 16:43:01,302 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 16:43:01,303 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench/bresenham.c [2019-11-24 16:43:01,309 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ee57267a/616fc54140854a958176459a89a2469f/FLAGe35c2eaa8 [2019-11-24 16:43:01,700 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ee57267a/616fc54140854a958176459a89a2469f [2019-11-24 16:43:01,712 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 16:43:01,714 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-24 16:43:01,715 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 16:43:01,715 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 16:43:01,718 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 16:43:01,719 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 04:43:01" (1/1) ... [2019-11-24 16:43:01,722 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69786360 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:43:01, skipping insertion in model container [2019-11-24 16:43:01,722 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 04:43:01" (1/1) ... [2019-11-24 16:43:01,730 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 16:43:01,747 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 16:43:01,966 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 16:43:01,975 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 16:43:02,002 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 16:43:02,017 INFO L208 MainTranslator]: Completed translation [2019-11-24 16:43:02,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:43:02 WrapperNode [2019-11-24 16:43:02,018 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 16:43:02,019 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 16:43:02,019 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 16:43:02,019 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 16:43:02,028 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:43:02" (1/1) ... [2019-11-24 16:43:02,035 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:43:02" (1/1) ... [2019-11-24 16:43:02,140 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 16:43:02,144 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 16:43:02,144 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 16:43:02,144 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 16:43:02,157 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:43:02" (1/1) ... [2019-11-24 16:43:02,157 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:43:02" (1/1) ... [2019-11-24 16:43:02,160 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:43:02" (1/1) ... [2019-11-24 16:43:02,160 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:43:02" (1/1) ... [2019-11-24 16:43:02,169 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:43:02" (1/1) ... [2019-11-24 16:43:02,174 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:43:02" (1/1) ... [2019-11-24 16:43:02,175 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:43:02" (1/1) ... [2019-11-24 16:43:02,182 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 16:43:02,183 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-24 16:43:02,183 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-24 16:43:02,183 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-24 16:43:02,184 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:43:02" (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 16:43:02,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-24 16:43:02,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-24 16:43:02,649 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-24 16:43:02,649 INFO L284 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-24 16:43:02,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 04:43:02 BoogieIcfgContainer [2019-11-24 16:43:02,651 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-24 16:43:02,651 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-11-24 16:43:02,651 INFO L271 PluginConnector]: Initializing Sifa... [2019-11-24 16:43:02,651 INFO L275 PluginConnector]: Sifa initialized [2019-11-24 16:43:02,652 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 04:43:02" (1/1) ... [2019-11-24 16:43:02,653 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 16:43:02,672 INFO L159 IcfgInterpreter]: Started Sifa with 2 locations of interest [2019-11-24 16:43:02,672 INFO L166 IcfgInterpreter]: Building call graph [2019-11-24 16:43:02,679 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-24 16:43:02,686 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-24 16:43:02,687 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-24 16:43:04,070 WARN L192 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 411 [2019-11-24 16:43:04,450 WARN L192 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 412 DAG size of output: 411 [2019-11-24 16:43:04,625 WARN L192 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 396 [2019-11-24 16:43:04,792 WARN L192 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 396 [2019-11-24 16:43:04,956 WARN L192 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 396 [2019-11-24 16:43:05,560 WARN L192 SmtUtils]: Spent 429.00 ms on a formula simplification that was a NOOP. DAG size: 934 [2019-11-24 16:43:06,336 WARN L192 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 935 DAG size of output: 935 [2019-11-24 16:43:06,824 WARN L192 SmtUtils]: Spent 452.00 ms on a formula simplification that was a NOOP. DAG size: 920 [2019-11-24 16:43:07,170 WARN L192 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 920 [2019-11-24 16:43:07,467 WARN L192 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 920 [2019-11-24 16:43:08,787 WARN L192 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 2048 [2019-11-24 16:43:10,757 WARN L192 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 2049 DAG size of output: 2048 [2019-11-24 16:43:11,905 WARN L192 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 1993 [2019-11-24 16:43:12,933 WARN L192 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 1993 [2019-11-24 16:43:14,000 WARN L192 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 1993 [2019-11-24 16:43:18,897 WARN L192 SmtUtils]: Spent 4.51 s on a formula simplification that was a NOOP. DAG size: 4008 [2019-11-24 16:43:26,414 WARN L192 SmtUtils]: Spent 4.79 s on a formula simplification. DAG size of input: 4009 DAG size of output: 4008 [2019-11-24 16:43:31,712 WARN L192 SmtUtils]: Spent 5.22 s on a formula simplification that was a NOOP. DAG size: 3960 [2019-11-24 16:43:36,506 WARN L192 SmtUtils]: Spent 4.79 s on a formula simplification that was a NOOP. DAG size: 3960 [2019-11-24 16:43:41,077 WARN L192 SmtUtils]: Spent 4.57 s on a formula simplification that was a NOOP. DAG size: 3960 [2019-11-24 16:44:04,351 WARN L192 SmtUtils]: Spent 20.77 s on a formula simplification. DAG size of input: 8986 DAG size of output: 8981 [2019-11-24 16:44:09,495 WARN L177 XnfTransformerHelper]: Simplifying disjunction of 7832 conjuctions. This might take some time...