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 ExplicitValueDomain --rcfgbuilder.size.of.a.code.block SequenceOfStatements --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.intern.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_DDA -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.3.2.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 18:45:30,228 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 18:45:30,230 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 18:45:30,246 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 18:45:30,246 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 18:45:30,247 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 18:45:30,249 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 18:45:30,251 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 18:45:30,252 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 18:45:30,253 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 18:45:30,254 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 18:45:30,256 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 18:45:30,256 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 18:45:30,257 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 18:45:30,258 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 18:45:30,259 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 18:45:30,260 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 18:45:30,261 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 18:45:30,263 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 18:45:30,265 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 18:45:30,267 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 18:45:30,268 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 18:45:30,269 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 18:45:30,270 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 18:45:30,273 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 18:45:30,273 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 18:45:30,274 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 18:45:30,275 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 18:45:30,275 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 18:45:30,276 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 18:45:30,277 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 18:45:30,277 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 18:45:30,278 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 18:45:30,279 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 18:45:30,280 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 18:45:30,281 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 18:45:30,281 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 18:45:30,282 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 18:45:30,282 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 18:45:30,283 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 18:45:30,284 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 18:45:30,284 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 [2019-09-20 18:45:30,300 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 18:45:30,300 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 18:45:30,301 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-20 18:45:30,301 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-20 18:45:30,302 INFO L138 SettingsManager]: * Use SBE=true [2019-09-20 18:45:30,302 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 18:45:30,302 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 18:45:30,302 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-20 18:45:30,302 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 18:45:30,303 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 18:45:30,303 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 18:45:30,303 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 18:45:30,303 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 18:45:30,304 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 18:45:30,304 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 18:45:30,304 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-20 18:45:30,304 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 18:45:30,304 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 18:45:30,305 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 18:45:30,305 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-20 18:45:30,305 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-20 18:45:30,305 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 18:45:30,305 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 18:45:30,306 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 18:45:30,306 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-20 18:45:30,306 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-20 18:45:30,306 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 18:45:30,306 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-20 18:45:30,307 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> ExplicitValueDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements 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_DDA [2019-09-20 18:45:30,338 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 18:45:30,351 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 18:45:30,355 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 18:45:30,356 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 18:45:30,357 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 18:45:30,358 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.3.2.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c [2019-09-20 18:45:30,423 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86d8eed5a/d2884bd3ef344c2cba9ed43930465d06/FLAG82370a28e [2019-09-20 18:45:30,979 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 18:45:30,980 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.3.2.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c [2019-09-20 18:45:31,001 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86d8eed5a/d2884bd3ef344c2cba9ed43930465d06/FLAG82370a28e [2019-09-20 18:45:31,263 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86d8eed5a/d2884bd3ef344c2cba9ed43930465d06 [2019-09-20 18:45:31,274 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 18:45:31,276 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 18:45:31,277 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 18:45:31,277 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 18:45:31,281 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 18:45:31,282 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 06:45:31" (1/1) ... [2019-09-20 18:45:31,285 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@518209f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:45:31, skipping insertion in model container [2019-09-20 18:45:31,285 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 06:45:31" (1/1) ... [2019-09-20 18:45:31,293 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 18:45:31,377 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 18:45:31,843 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 18:45:31,857 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 18:45:31,998 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 18:45:32,020 INFO L192 MainTranslator]: Completed translation [2019-09-20 18:45:32,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:45:32 WrapperNode [2019-09-20 18:45:32,021 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 18:45:32,022 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 18:45:32,022 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 18:45:32,022 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 18:45:32,035 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:45:32" (1/1) ... [2019-09-20 18:45:32,036 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:45:32" (1/1) ... [2019-09-20 18:45:32,050 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:45:32" (1/1) ... [2019-09-20 18:45:32,051 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:45:32" (1/1) ... [2019-09-20 18:45:32,073 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:45:32" (1/1) ... [2019-09-20 18:45:32,090 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:45:32" (1/1) ... [2019-09-20 18:45:32,095 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:45:32" (1/1) ... [2019-09-20 18:45:32,102 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 18:45:32,103 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 18:45:32,103 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 18:45:32,103 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 18:45:32,104 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:45:32" (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 [2019-09-20 18:45:32,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 18:45:32,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 18:45:32,215 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 18:45:32,215 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 18:45:32,216 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-09-20 18:45:32,216 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-09-20 18:45:32,217 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2019-09-20 18:45:32,217 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-20 18:45:32,217 INFO L130 BoogieDeclarations]: Found specification of procedure read [2019-09-20 18:45:32,218 INFO L130 BoogieDeclarations]: Found specification of procedure write [2019-09-20 18:45:32,218 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2019-09-20 18:45:32,219 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2019-09-20 18:45:32,219 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2019-09-20 18:45:32,219 INFO L130 BoogieDeclarations]: Found specification of procedure init [2019-09-20 18:45:32,219 INFO L130 BoogieDeclarations]: Found specification of procedure check [2019-09-20 18:45:32,219 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 18:45:32,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 18:45:32,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 18:45:33,553 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 18:45:33,554 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-20 18:45:33,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 06:45:33 BoogieIcfgContainer [2019-09-20 18:45:33,555 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 18:45:33,556 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-20 18:45:33,556 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-20 18:45:33,556 INFO L275 PluginConnector]: Sifa initialized [2019-09-20 18:45:33,557 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 06:45:33" (1/1) ... [2019-09-20 18:45:33,558 INFO L79 SifaObserver]: Intern domains=ExplicitValueDomain;IntervalDomain ♦ Abstract Domain=ExplicitValueDomain ♦ 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_DDA ♦ Intern Fluid=SizeLimitFluid [2019-09-20 18:45:33,579 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-20 18:45:33,579 INFO L169 IcfgInterpreter]: Building call graph [2019-09-20 18:45:33,597 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-20 18:45:33,607 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-20 18:45:33,608 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-20 18:45:34,077 WARN L191 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2019-09-20 18:45:34,391 WARN L191 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2019-09-20 18:45:34,668 WARN L191 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2019-09-20 18:45:34,931 WARN L191 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2019-09-20 18:45:34,990 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 233 for LOIs [2019-09-20 18:45:40,544 WARN L191 SmtUtils]: Spent 2.88 s on a formula simplification that was a NOOP. DAG size: 281 [2019-09-20 18:45:42,849 WARN L191 SmtUtils]: Spent 2.30 s on a formula simplification that was a NOOP. DAG size: 281 [2019-09-20 18:45:45,107 WARN L191 SmtUtils]: Spent 2.26 s on a formula simplification that was a NOOP. DAG size: 281 [2019-09-20 18:45:47,348 WARN L191 SmtUtils]: Spent 2.24 s on a formula simplification that was a NOOP. DAG size: 281 [2019-09-20 18:45:49,701 WARN L191 SmtUtils]: Spent 2.35 s on a formula simplification that was a NOOP. DAG size: 281 [2019-09-20 18:45:51,948 WARN L191 SmtUtils]: Spent 2.25 s on a formula simplification that was a NOOP. DAG size: 281 [2019-09-20 18:45:54,125 WARN L191 SmtUtils]: Spent 2.18 s on a formula simplification that was a NOOP. DAG size: 281 [2019-09-20 18:45:56,394 WARN L191 SmtUtils]: Spent 2.27 s on a formula simplification that was a NOOP. DAG size: 281 [2019-09-20 18:45:58,580 WARN L191 SmtUtils]: Spent 2.18 s on a formula simplification that was a NOOP. DAG size: 281 [2019-09-20 18:46:00,732 WARN L191 SmtUtils]: Spent 2.15 s on a formula simplification that was a NOOP. DAG size: 281 [2019-09-20 18:46:02,902 WARN L191 SmtUtils]: Spent 2.17 s on a formula simplification that was a NOOP. DAG size: 281 [2019-09-20 18:46:05,111 WARN L191 SmtUtils]: Spent 2.21 s on a formula simplification that was a NOOP. DAG size: 281 [2019-09-20 18:46:07,268 WARN L191 SmtUtils]: Spent 2.16 s on a formula simplification that was a NOOP. DAG size: 281 [2019-09-20 18:46:09,433 WARN L191 SmtUtils]: Spent 2.16 s on a formula simplification that was a NOOP. DAG size: 281 [2019-09-20 18:46:11,599 WARN L191 SmtUtils]: Spent 2.17 s on a formula simplification that was a NOOP. DAG size: 281 [2019-09-20 18:46:13,784 WARN L191 SmtUtils]: Spent 2.18 s on a formula simplification that was a NOOP. DAG size: 281