/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_spec3_product45.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-24 18:02:18,696 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 18:02:18,700 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 18:02:18,721 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-24 18:02:18,721 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-24 18:02:18,723 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-24 18:02:18,724 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-24 18:02:18,727 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-24 18:02:18,729 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-24 18:02:18,731 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-24 18:02:18,732 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-24 18:02:18,734 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-24 18:02:18,734 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 18:02:18,736 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 18:02:18,737 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 18:02:18,739 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 18:02:18,740 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 18:02:18,741 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 18:02:18,744 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 18:02:18,747 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 18:02:18,749 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 18:02:18,751 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 18:02:18,753 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 18:02:18,754 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 18:02:18,757 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-24 18:02:18,758 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-24 18:02:18,758 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-24 18:02:18,759 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-24 18:02:18,760 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-24 18:02:18,761 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-24 18:02:18,761 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-24 18:02:18,762 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-24 18:02:18,763 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-24 18:02:18,764 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-24 18:02:18,766 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-24 18:02:18,766 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-24 18:02:18,767 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-24 18:02:18,767 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-24 18:02:18,768 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-24 18:02:18,769 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-24 18:02:18,770 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-24 18:02:18,771 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 18:02:18,790 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 18:02:18,790 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 18:02:18,791 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-24 18:02:18,792 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-24 18:02:18,792 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-24 18:02:18,792 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-24 18:02:18,792 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-24 18:02:18,793 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-24 18:02:18,793 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-24 18:02:18,793 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-24 18:02:18,793 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-24 18:02:18,793 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-24 18:02:18,794 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-24 18:02:18,794 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-24 18:02:18,794 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-24 18:02:18,795 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 18:02:18,796 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 18:02:18,796 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 18:02:18,796 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 18:02:18,796 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 18:02:18,797 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 18:02:18,797 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 18:02:18,797 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 18:02:18,797 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 18:02:18,797 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 18:02:18,798 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 18:02:18,798 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 18:02:18,798 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 18:02:18,798 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 18:02:18,798 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 18:02:18,799 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 18:02:18,799 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 18:02:18,799 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 18:02:18,799 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-24 18:02:18,800 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 18:02:18,800 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 18:02:18,800 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 18:02:18,800 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-24 18:02:19,130 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 18:02:19,152 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 18:02:19,159 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 18:02:19,161 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 18:02:19,162 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 18:02:19,163 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product45.cil.c [2019-11-24 18:02:19,270 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62c0475a3/6412cc412ed74ce69b286b82a246ad4e/FLAG2e74a09fa [2019-11-24 18:02:20,079 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 18:02:20,080 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product45.cil.c [2019-11-24 18:02:20,108 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62c0475a3/6412cc412ed74ce69b286b82a246ad4e/FLAG2e74a09fa [2019-11-24 18:02:20,287 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62c0475a3/6412cc412ed74ce69b286b82a246ad4e [2019-11-24 18:02:20,298 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 18:02:20,300 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-24 18:02:20,302 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 18:02:20,302 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 18:02:20,307 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 18:02:20,308 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 06:02:20" (1/1) ... [2019-11-24 18:02:20,315 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15b626e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:02:20, skipping insertion in model container [2019-11-24 18:02:20,316 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 06:02:20" (1/1) ... [2019-11-24 18:02:20,326 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 18:02:20,405 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 18:02:20,943 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 18:02:20,964 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 18:02:21,097 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 18:02:21,145 INFO L208 MainTranslator]: Completed translation [2019-11-24 18:02:21,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:02:21 WrapperNode [2019-11-24 18:02:21,146 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 18:02:21,147 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 18:02:21,147 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 18:02:21,147 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 18:02:21,157 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:02:21" (1/1) ... [2019-11-24 18:02:21,183 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:02:21" (1/1) ... [2019-11-24 18:02:21,268 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 18:02:21,269 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 18:02:21,269 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 18:02:21,269 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 18:02:21,283 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:02:21" (1/1) ... [2019-11-24 18:02:21,284 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:02:21" (1/1) ... [2019-11-24 18:02:21,291 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:02:21" (1/1) ... [2019-11-24 18:02:21,292 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:02:21" (1/1) ... [2019-11-24 18:02:21,310 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:02:21" (1/1) ... [2019-11-24 18:02:21,324 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:02:21" (1/1) ... [2019-11-24 18:02:21,330 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:02:21" (1/1) ... [2019-11-24 18:02:21,339 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 18:02:21,339 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-24 18:02:21,339 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-24 18:02:21,340 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-24 18:02:21,341 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:02:21" (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 18:02:21,432 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-24 18:02:21,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-24 18:02:21,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-24 18:02:21,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-24 18:02:24,995 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-24 18:02:24,996 INFO L284 CfgBuilder]: Removed 198 assume(true) statements. [2019-11-24 18:02:24,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 06:02:24 BoogieIcfgContainer [2019-11-24 18:02:24,998 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-24 18:02:24,999 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-11-24 18:02:25,000 INFO L271 PluginConnector]: Initializing Sifa... [2019-11-24 18:02:25,000 INFO L275 PluginConnector]: Sifa initialized [2019-11-24 18:02:25,002 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 06:02:24" (1/1) ... [2019-11-24 18:02:25,004 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 18:02:25,050 INFO L159 IcfgInterpreter]: Started Sifa with 3 locations of interest [2019-11-24 18:02:25,050 INFO L166 IcfgInterpreter]: Building call graph [2019-11-24 18:02:25,072 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-24 18:02:25,088 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-24 18:02:25,095 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-24 18:02:38,002 WARN L192 SmtUtils]: Spent 475.00 ms on a formula simplification that was a NOOP. DAG size: 476 [2019-11-24 18:02:40,552 WARN L192 SmtUtils]: Spent 580.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-11-24 18:02:40,886 WARN L192 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 484 [2019-11-24 18:02:41,532 WARN L192 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 612 DAG size of output: 612 [2019-11-24 18:02:41,929 WARN L192 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 612 DAG size of output: 612 [2019-11-24 18:02:42,260 WARN L192 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 612 [2019-11-24 18:02:42,864 WARN L192 SmtUtils]: Spent 598.00 ms on a formula simplification. DAG size of input: 617 DAG size of output: 615 [2019-11-24 18:02:43,469 WARN L192 SmtUtils]: Spent 599.00 ms on a formula simplification. DAG size of input: 617 DAG size of output: 615 [2019-11-24 18:02:43,954 WARN L192 SmtUtils]: Spent 480.00 ms on a formula simplification that was a NOOP. DAG size: 615 [2019-11-24 18:02:44,525 WARN L192 SmtUtils]: Spent 565.00 ms on a formula simplification. DAG size of input: 619 DAG size of output: 617 [2019-11-24 18:02:44,958 WARN L192 SmtUtils]: Spent 427.00 ms on a formula simplification. DAG size of input: 619 DAG size of output: 617 [2019-11-24 18:02:45,406 WARN L192 SmtUtils]: Spent 442.00 ms on a formula simplification that was a NOOP. DAG size: 617 [2019-11-24 18:02:45,992 WARN L192 SmtUtils]: Spent 531.00 ms on a formula simplification that was a NOOP. DAG size: 618 [2019-11-24 18:02:47,943 WARN L192 SmtUtils]: Spent 968.00 ms on a formula simplification that was a NOOP. DAG size: 718 [2019-11-24 18:02:57,179 WARN L192 SmtUtils]: Spent 6.86 s on a formula simplification. DAG size of input: 1194 DAG size of output: 999 [2019-11-24 18:03:02,966 WARN L192 SmtUtils]: Spent 5.78 s on a formula simplification. DAG size of input: 1194 DAG size of output: 999 [2019-11-24 18:03:06,075 WARN L192 SmtUtils]: Spent 3.10 s on a formula simplification. DAG size of input: 971 DAG size of output: 964 [2019-11-24 18:03:14,310 WARN L192 SmtUtils]: Spent 8.22 s on a formula simplification. DAG size of input: 1451 DAG size of output: 1181 [2019-11-24 18:03:23,059 WARN L192 SmtUtils]: Spent 8.73 s on a formula simplification. DAG size of input: 1451 DAG size of output: 1181 [2019-11-24 18:03:30,383 WARN L192 SmtUtils]: Spent 7.31 s on a formula simplification. DAG size of input: 1080 DAG size of output: 1069 [2019-11-24 18:03:41,566 WARN L192 SmtUtils]: Spent 11.17 s on a formula simplification. DAG size of input: 1491 DAG size of output: 1307 [2019-11-24 18:03:52,574 WARN L192 SmtUtils]: Spent 10.99 s on a formula simplification. DAG size of input: 1491 DAG size of output: 1307