java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/SifaC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.intern.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/locks/test_locks_8.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-21 09:53:06,703 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-21 09:53:06,705 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-21 09:53:06,718 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-21 09:53:06,719 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-21 09:53:06,720 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-21 09:53:06,721 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-21 09:53:06,729 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-21 09:53:06,731 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-21 09:53:06,731 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-21 09:53:06,735 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-21 09:53:06,736 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-21 09:53:06,737 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-21 09:53:06,738 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-21 09:53:06,740 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-21 09:53:06,743 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-21 09:53:06,743 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-21 09:53:06,746 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-21 09:53:06,750 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-21 09:53:06,752 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-21 09:53:06,755 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-21 09:53:06,758 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-21 09:53:06,759 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-21 09:53:06,760 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-21 09:53:06,761 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-21 09:53:06,762 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-21 09:53:06,762 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-21 09:53:06,763 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-21 09:53:06,763 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-21 09:53:06,764 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-21 09:53:06,765 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-21 09:53:06,766 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-21 09:53:06,767 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-21 09:53:06,767 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-21 09:53:06,768 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-21 09:53:06,768 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-21 09:53:06,769 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-21 09:53:06,772 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-21 09:53:06,772 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-21 09:53:06,773 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-21 09:53:06,776 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-21 09:53:06,777 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-09-21 09:53:06,800 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-21 09:53:06,800 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-21 09:53:06,802 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-21 09:53:06,802 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-21 09:53:06,803 INFO L138 SettingsManager]: * Use SBE=true [2019-09-21 09:53:06,803 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-21 09:53:06,803 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-21 09:53:06,803 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-21 09:53:06,803 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-21 09:53:06,804 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-21 09:53:06,805 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-21 09:53:06,805 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-21 09:53:06,805 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-21 09:53:06,806 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-21 09:53:06,806 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-21 09:53:06,806 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-21 09:53:06,806 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-21 09:53:06,807 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-21 09:53:06,807 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-21 09:53:06,807 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-21 09:53:06,807 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-21 09:53:06,808 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-21 09:53:06,808 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-21 09:53:06,808 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-21 09:53:06,808 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-21 09:53:06,809 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-21 09:53:06,809 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-21 09:53:06,809 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-21 09:53:06,809 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Intern Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-09-21 09:53:06,866 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-21 09:53:06,883 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-21 09:53:06,887 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-21 09:53:06,888 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-21 09:53:06,889 INFO L275 PluginConnector]: CDTParser initialized [2019-09-21 09:53:06,889 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/locks/test_locks_8.c [2019-09-21 09:53:06,949 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30b1a9ea2/157628a45c464db496a0524b77679494/FLAGd8f118714 [2019-09-21 09:53:07,393 INFO L306 CDTParser]: Found 1 translation units. [2019-09-21 09:53:07,394 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/locks/test_locks_8.c [2019-09-21 09:53:07,404 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30b1a9ea2/157628a45c464db496a0524b77679494/FLAGd8f118714 [2019-09-21 09:53:07,804 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30b1a9ea2/157628a45c464db496a0524b77679494 [2019-09-21 09:53:07,815 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-21 09:53:07,817 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-21 09:53:07,818 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-21 09:53:07,818 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-21 09:53:07,821 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-21 09:53:07,822 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 09:53:07" (1/1) ... [2019-09-21 09:53:07,825 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36a43521 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:53:07, skipping insertion in model container [2019-09-21 09:53:07,825 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 09:53:07" (1/1) ... [2019-09-21 09:53:07,833 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-21 09:53:07,854 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-21 09:53:08,056 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-21 09:53:08,059 INFO L188 MainTranslator]: Completed pre-run [2019-09-21 09:53:08,082 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-21 09:53:08,197 INFO L192 MainTranslator]: Completed translation [2019-09-21 09:53:08,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:53:08 WrapperNode [2019-09-21 09:53:08,197 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-21 09:53:08,198 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-21 09:53:08,198 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-21 09:53:08,198 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-21 09:53:08,209 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:53:08" (1/1) ... [2019-09-21 09:53:08,209 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:53:08" (1/1) ... [2019-09-21 09:53:08,213 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:53:08" (1/1) ... [2019-09-21 09:53:08,214 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:53:08" (1/1) ... [2019-09-21 09:53:08,222 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:53:08" (1/1) ... [2019-09-21 09:53:08,234 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:53:08" (1/1) ... [2019-09-21 09:53:08,235 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:53:08" (1/1) ... [2019-09-21 09:53:08,237 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-21 09:53:08,242 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-21 09:53:08,242 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-21 09:53:08,243 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-21 09:53:08,243 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:53:08" (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 [2019-09-21 09:53:08,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-21 09:53:08,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-21 09:53:08,295 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-21 09:53:08,296 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-21 09:53:08,296 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-21 09:53:08,296 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-21 09:53:08,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-21 09:53:08,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-21 09:53:08,758 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-21 09:53:08,759 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-21 09:53:08,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 09:53:08 BoogieIcfgContainer [2019-09-21 09:53:08,760 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-21 09:53:08,760 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-21 09:53:08,761 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-21 09:53:08,761 INFO L275 PluginConnector]: Sifa initialized [2019-09-21 09:53:08,762 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 09:53:08" (1/1) ... [2019-09-21 09:53:08,763 INFO L79 SifaObserver]: Intern domains=ExplicitValueDomain;IntervalDomain ♦ Abstract Domain=CompoundDomain ♦ Abstract when formula's dag size exceeds (negative numbers disable this limit)=-1 ♦ Fluid=SizeLimitFluid ♦ Max. Parallel Explicit Values=2 ♦ Max. Parallel Intervals=2 ♦ Loop Summarizer=FixpointLoopSummarizer ♦ Abstract when formula has more disjuncts than (negative numbers disable this limit)=8 ♦ Call Summarizer=TopInputCallSummarizer ♦ Xnf Conversion Technique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION ♦ Simplification Technique=SIMPLIFY_QUICK ♦ Intern Fluid=SizeLimitFluid [2019-09-21 09:53:08,787 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-21 09:53:08,787 INFO L169 IcfgInterpreter]: Building call graph [2019-09-21 09:53:08,795 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-21 09:53:08,803 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-21 09:53:08,805 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-21 09:53:08,891 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1 for LOIs [2019-09-21 09:53:09,968 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2019-09-21 09:53:10,085 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2019-09-21 09:53:13,244 WARN L191 SmtUtils]: Spent 2.80 s on a formula simplification that was a NOOP. DAG size: 353 [2019-09-21 09:53:15,387 WARN L191 SmtUtils]: Spent 2.14 s on a formula simplification that was a NOOP. DAG size: 353 [2019-09-21 09:53:16,355 WARN L191 SmtUtils]: Spent 780.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2019-09-21 09:53:16,994 WARN L191 SmtUtils]: Spent 637.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2019-09-21 09:53:17,723 WARN L191 SmtUtils]: Spent 596.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2019-09-21 09:53:18,244 WARN L191 SmtUtils]: Spent 519.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2019-09-21 09:53:18,871 WARN L191 SmtUtils]: Spent 572.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2019-09-21 09:53:19,454 WARN L191 SmtUtils]: Spent 581.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2019-09-21 09:53:19,482 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2019-09-21 09:53:21,118 WARN L191 SmtUtils]: Spent 1.58 s on a formula simplification that was a NOOP. DAG size: 353 [2019-09-21 09:53:22,645 WARN L191 SmtUtils]: Spent 1.52 s on a formula simplification that was a NOOP. DAG size: 353 [2019-09-21 09:53:24,458 WARN L191 SmtUtils]: Spent 1.63 s on a formula simplification that was a NOOP. DAG size: 350 [2019-09-21 09:53:26,022 WARN L191 SmtUtils]: Spent 1.56 s on a formula simplification that was a NOOP. DAG size: 350 [2019-09-21 09:53:28,305 WARN L191 SmtUtils]: Spent 2.25 s on a formula simplification that was a NOOP. DAG size: 486 [2019-09-21 09:53:30,451 WARN L191 SmtUtils]: Spent 2.14 s on a formula simplification that was a NOOP. DAG size: 486 [2019-09-21 09:53:32,330 WARN L191 SmtUtils]: Spent 1.78 s on a formula simplification. DAG size of input: 487 DAG size of output: 359 [2019-09-21 09:53:34,509 WARN L191 SmtUtils]: Spent 2.18 s on a formula simplification that was a NOOP. DAG size: 486 [2019-09-21 09:53:36,736 WARN L191 SmtUtils]: Spent 2.22 s on a formula simplification that was a NOOP. DAG size: 486 [2019-09-21 09:53:38,007 WARN L191 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 487 DAG size of output: 359 [2019-09-21 09:53:40,217 WARN L191 SmtUtils]: Spent 2.21 s on a formula simplification that was a NOOP. DAG size: 486 [2019-09-21 09:53:42,408 WARN L191 SmtUtils]: Spent 2.19 s on a formula simplification that was a NOOP. DAG size: 486 [2019-09-21 09:53:43,647 WARN L191 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 487 DAG size of output: 359 [2019-09-21 09:53:45,827 WARN L191 SmtUtils]: Spent 2.18 s on a formula simplification that was a NOOP. DAG size: 486 [2019-09-21 09:53:48,104 WARN L191 SmtUtils]: Spent 2.27 s on a formula simplification that was a NOOP. DAG size: 486 [2019-09-21 09:53:49,340 WARN L191 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 487 DAG size of output: 359 [2019-09-21 09:53:51,570 WARN L191 SmtUtils]: Spent 2.23 s on a formula simplification that was a NOOP. DAG size: 486