/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/product-lines/minepump_spec1_product02.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-24 17:42:16,521 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 17:42:16,524 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 17:42:16,544 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-24 17:42:16,544 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-24 17:42:16,546 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-24 17:42:16,548 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-24 17:42:16,559 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-24 17:42:16,563 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-24 17:42:16,566 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-24 17:42:16,569 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-24 17:42:16,571 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-24 17:42:16,571 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 17:42:16,573 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 17:42:16,576 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 17:42:16,578 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 17:42:16,580 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 17:42:16,581 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 17:42:16,583 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 17:42:16,588 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 17:42:16,593 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 17:42:16,598 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 17:42:16,599 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 17:42:16,600 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 17:42:16,602 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-24 17:42:16,603 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-24 17:42:16,603 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-24 17:42:16,605 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-24 17:42:16,607 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-24 17:42:16,608 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-24 17:42:16,608 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-24 17:42:16,609 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-24 17:42:16,612 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-24 17:42:16,613 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-24 17:42:16,615 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-24 17:42:16,615 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-24 17:42:16,615 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-24 17:42:16,616 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-24 17:42:16,616 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-24 17:42:16,617 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-24 17:42:16,618 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-24 17:42:16,620 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 17:42:16,656 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 17:42:16,656 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 17:42:16,657 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-24 17:42:16,657 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-24 17:42:16,658 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-24 17:42:16,661 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-24 17:42:16,661 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-24 17:42:16,661 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-24 17:42:16,662 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-24 17:42:16,662 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-24 17:42:16,662 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-24 17:42:16,662 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-24 17:42:16,662 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-24 17:42:16,663 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-24 17:42:16,665 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-24 17:42:16,666 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 17:42:16,666 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 17:42:16,666 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 17:42:16,666 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 17:42:16,666 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 17:42:16,667 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 17:42:16,667 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 17:42:16,667 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 17:42:16,667 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 17:42:16,667 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 17:42:16,668 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 17:42:16,669 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 17:42:16,669 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 17:42:16,669 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 17:42:16,669 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 17:42:16,670 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 17:42:16,670 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 17:42:16,670 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 17:42:16,670 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-24 17:42:16,670 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 17:42:16,670 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 17:42:16,673 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 17:42:16,673 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-24 17:42:16,941 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 17:42:16,961 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 17:42:16,965 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 17:42:16,967 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 17:42:16,967 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 17:42:16,968 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product02.cil.c [2019-11-24 17:42:17,050 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c857b7b73/97b853afa1934c2d9c8cbbfa3b3f449a/FLAGd43d2ed3b [2019-11-24 17:42:17,595 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 17:42:17,596 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product02.cil.c [2019-11-24 17:42:17,607 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c857b7b73/97b853afa1934c2d9c8cbbfa3b3f449a/FLAGd43d2ed3b [2019-11-24 17:42:17,902 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c857b7b73/97b853afa1934c2d9c8cbbfa3b3f449a [2019-11-24 17:42:17,912 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 17:42:17,914 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-24 17:42:17,915 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 17:42:17,915 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 17:42:17,919 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 17:42:17,920 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 05:42:17" (1/1) ... [2019-11-24 17:42:17,922 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ce7b69a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:42:17, skipping insertion in model container [2019-11-24 17:42:17,922 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 05:42:17" (1/1) ... [2019-11-24 17:42:17,928 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 17:42:17,977 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 17:42:18,555 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 17:42:18,578 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 17:42:18,678 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 17:42:18,725 INFO L208 MainTranslator]: Completed translation [2019-11-24 17:42:18,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:42:18 WrapperNode [2019-11-24 17:42:18,726 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 17:42:18,727 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 17:42:18,727 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 17:42:18,727 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 17:42:18,737 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:42:18" (1/1) ... [2019-11-24 17:42:18,767 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:42:18" (1/1) ... [2019-11-24 17:42:18,802 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 17:42:18,803 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 17:42:18,803 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 17:42:18,803 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 17:42:18,813 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:42:18" (1/1) ... [2019-11-24 17:42:18,813 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:42:18" (1/1) ... [2019-11-24 17:42:18,817 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:42:18" (1/1) ... [2019-11-24 17:42:18,817 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:42:18" (1/1) ... [2019-11-24 17:42:18,826 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:42:18" (1/1) ... [2019-11-24 17:42:18,833 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:42:18" (1/1) ... [2019-11-24 17:42:18,836 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:42:18" (1/1) ... [2019-11-24 17:42:18,840 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 17:42:18,840 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-24 17:42:18,840 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-24 17:42:18,841 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-24 17:42:18,842 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:42:18" (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 17:42:18,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-24 17:42:18,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-24 17:42:18,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-24 17:42:18,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-24 17:42:20,136 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-24 17:42:20,136 INFO L284 CfgBuilder]: Removed 68 assume(true) statements. [2019-11-24 17:42:20,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 05:42:20 BoogieIcfgContainer [2019-11-24 17:42:20,140 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-24 17:42:20,140 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-11-24 17:42:20,140 INFO L271 PluginConnector]: Initializing Sifa... [2019-11-24 17:42:20,141 INFO L275 PluginConnector]: Sifa initialized [2019-11-24 17:42:20,142 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 05:42:20" (1/1) ... [2019-11-24 17:42:20,143 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 17:42:20,170 INFO L159 IcfgInterpreter]: Started Sifa with 3 locations of interest [2019-11-24 17:42:20,171 INFO L166 IcfgInterpreter]: Building call graph [2019-11-24 17:42:20,181 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-24 17:42:20,193 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-24 17:42:20,195 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-24 17:42:27,841 WARN L192 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 476 [2019-11-24 17:42:29,550 WARN L192 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-11-24 17:42:29,709 WARN L192 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 484 [2019-11-24 17:42:30,268 WARN L192 SmtUtils]: Spent 469.00 ms on a formula simplification. DAG size of input: 542 DAG size of output: 534 [2019-11-24 17:42:30,870 WARN L192 SmtUtils]: Spent 547.00 ms on a formula simplification that was a NOOP. DAG size: 636 [2019-11-24 17:42:32,465 WARN L192 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 667 DAG size of output: 653 [2019-11-24 17:42:33,554 WARN L192 SmtUtils]: Spent 963.00 ms on a formula simplification. DAG size of input: 653 DAG size of output: 651 [2019-11-24 17:42:36,182 WARN L192 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 668 DAG size of output: 655 [2019-11-24 17:42:36,956 WARN L192 SmtUtils]: Spent 770.00 ms on a formula simplification. DAG size of input: 668 DAG size of output: 655 [2019-11-24 17:42:37,564 WARN L192 SmtUtils]: Spent 603.00 ms on a formula simplification. DAG size of input: 653 DAG size of output: 653 [2019-11-24 17:42:39,726 WARN L192 SmtUtils]: Spent 1.90 s on a formula simplification. DAG size of input: 734 DAG size of output: 686 [2019-11-24 17:42:41,804 WARN L192 SmtUtils]: Spent 1.87 s on a formula simplification. DAG size of input: 692 DAG size of output: 690 [2019-11-24 17:42:46,683 WARN L192 SmtUtils]: Spent 4.29 s on a formula simplification. DAG size of input: 879 DAG size of output: 770 [2019-11-24 17:42:50,760 WARN L192 SmtUtils]: Spent 3.60 s on a formula simplification. DAG size of input: 757 DAG size of output: 747 [2019-11-24 17:42:57,500 WARN L192 SmtUtils]: Spent 4.70 s on a formula simplification. DAG size of input: 947 DAG size of output: 770 [2019-11-24 17:43:02,918 WARN L192 SmtUtils]: Spent 4.90 s on a formula simplification. DAG size of input: 757 DAG size of output: 756 [2019-11-24 17:43:06,527 WARN L192 SmtUtils]: Spent 3.56 s on a formula simplification. DAG size of input: 756 DAG size of output: 752 [2019-11-24 17:43:09,856 WARN L192 SmtUtils]: Spent 3.32 s on a formula simplification. DAG size of input: 756 DAG size of output: 752 [2019-11-24 17:43:12,442 WARN L192 SmtUtils]: Spent 2.58 s on a formula simplification. DAG size of input: 750 DAG size of output: 748 [2019-11-24 17:43:25,685 WARN L192 SmtUtils]: Spent 11.56 s on a formula simplification. DAG size of input: 1394 DAG size of output: 947 [2019-11-24 17:43:35,232 WARN L192 SmtUtils]: Spent 8.58 s on a formula simplification. DAG size of input: 917 DAG size of output: 877