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 SingleStatement --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.intern.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_DDA -i ../../../trunk/examples/svcomp/loop-industry-pattern/mod3.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 19:23:46,486 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 19:23:46,488 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 19:23:46,499 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 19:23:46,499 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 19:23:46,500 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 19:23:46,502 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 19:23:46,504 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 19:23:46,505 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 19:23:46,506 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 19:23:46,507 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 19:23:46,508 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 19:23:46,508 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 19:23:46,509 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 19:23:46,510 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 19:23:46,511 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 19:23:46,512 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 19:23:46,513 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 19:23:46,515 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 19:23:46,517 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 19:23:46,519 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 19:23:46,520 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 19:23:46,521 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 19:23:46,522 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 19:23:46,524 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 19:23:46,524 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 19:23:46,525 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 19:23:46,526 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 19:23:46,526 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 19:23:46,527 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 19:23:46,527 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 19:23:46,528 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 19:23:46,529 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 19:23:46,530 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 19:23:46,531 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 19:23:46,531 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 19:23:46,532 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 19:23:46,532 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 19:23:46,532 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 19:23:46,533 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 19:23:46,534 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 19:23:46,535 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 19:23:46,549 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 19:23:46,549 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 19:23:46,550 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-20 19:23:46,551 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-20 19:23:46,551 INFO L138 SettingsManager]: * Use SBE=true [2019-09-20 19:23:46,551 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 19:23:46,551 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 19:23:46,551 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-20 19:23:46,552 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 19:23:46,552 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 19:23:46,552 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 19:23:46,552 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 19:23:46,552 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 19:23:46,553 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 19:23:46,553 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 19:23:46,553 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-20 19:23:46,553 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 19:23:46,554 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 19:23:46,554 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 19:23:46,554 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-20 19:23:46,554 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-20 19:23:46,554 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 19:23:46,555 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 19:23:46,555 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 19:23:46,555 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-20 19:23:46,555 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-20 19:23:46,555 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 19:23:46,556 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-20 19:23:46,556 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 -> SingleStatement 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 19:23:46,586 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 19:23:46,599 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 19:23:46,603 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 19:23:46,605 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 19:23:46,605 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 19:23:46,606 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/mod3.c.v+lhb-reducer.c [2019-09-20 19:23:46,670 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c85fca2b/abe24e0ffcc94733885d0f1c99b72609/FLAGf4dcf4d84 [2019-09-20 19:23:47,082 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 19:23:47,082 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/mod3.c.v+lhb-reducer.c [2019-09-20 19:23:47,094 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c85fca2b/abe24e0ffcc94733885d0f1c99b72609/FLAGf4dcf4d84 [2019-09-20 19:23:47,444 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c85fca2b/abe24e0ffcc94733885d0f1c99b72609 [2019-09-20 19:23:47,454 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 19:23:47,456 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 19:23:47,457 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 19:23:47,457 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 19:23:47,461 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 19:23:47,462 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 07:23:47" (1/1) ... [2019-09-20 19:23:47,465 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73613047 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:23:47, skipping insertion in model container [2019-09-20 19:23:47,465 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 07:23:47" (1/1) ... [2019-09-20 19:23:47,472 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 19:23:47,496 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 19:23:47,740 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 19:23:47,746 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 19:23:47,794 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 19:23:47,906 INFO L192 MainTranslator]: Completed translation [2019-09-20 19:23:47,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:23:47 WrapperNode [2019-09-20 19:23:47,906 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 19:23:47,907 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 19:23:47,907 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 19:23:47,908 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 19:23:47,921 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:23:47" (1/1) ... [2019-09-20 19:23:47,921 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:23:47" (1/1) ... [2019-09-20 19:23:47,927 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:23:47" (1/1) ... [2019-09-20 19:23:47,928 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:23:47" (1/1) ... [2019-09-20 19:23:47,933 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:23:47" (1/1) ... [2019-09-20 19:23:47,939 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:23:47" (1/1) ... [2019-09-20 19:23:47,943 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:23:47" (1/1) ... [2019-09-20 19:23:47,948 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 19:23:47,949 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 19:23:47,949 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 19:23:47,949 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 19:23:47,950 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:23:47" (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 19:23:48,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 19:23:48,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 19:23:48,010 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 19:23:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 19:23:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 19:23:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-20 19:23:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 19:23:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 19:23:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 19:23:48,393 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 19:23:48,393 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-20 19:23:48,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 07:23:48 BoogieIcfgContainer [2019-09-20 19:23:48,395 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 19:23:48,395 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-20 19:23:48,396 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-20 19:23:48,396 INFO L275 PluginConnector]: Sifa initialized [2019-09-20 19:23:48,397 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 07:23:48" (1/1) ... [2019-09-20 19:23:48,398 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 19:23:48,421 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-20 19:23:48,422 INFO L169 IcfgInterpreter]: Building call graph [2019-09-20 19:23:48,431 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-20 19:23:48,441 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-20 19:23:48,443 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-20 19:23:48,591 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 36 for LOIs [2019-09-20 19:23:49,295 WARN L191 SmtUtils]: Spent 524.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 76 [2019-09-20 19:23:49,483 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2019-09-20 19:23:49,887 WARN L191 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 76 [2019-09-20 19:23:50,075 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2019-09-20 19:23:50,471 WARN L191 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 76 [2019-09-20 19:23:50,633 WARN L191 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2019-09-20 19:23:51,016 WARN L191 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 76 [2019-09-20 19:23:51,178 WARN L191 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2019-09-20 19:23:51,523 WARN L191 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 76 [2019-09-20 19:23:51,729 WARN L191 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2019-09-20 19:23:52,368 WARN L191 SmtUtils]: Spent 609.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 1 [2019-09-20 19:24:06,784 WARN L191 SmtUtils]: Spent 14.40 s on a formula simplification. DAG size of input: 103 DAG size of output: 76 [2019-09-20 19:24:06,944 WARN L191 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2019-09-20 19:24:07,193 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 36 [2019-09-20 19:24:08,200 WARN L191 SmtUtils]: Spent 855.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 48 [2019-09-20 19:24:15,189 WARN L191 SmtUtils]: Spent 6.99 s on a formula simplification that was a NOOP. DAG size: 48 [2019-09-20 19:24:17,591 WARN L191 SmtUtils]: Spent 2.40 s on a formula simplification. DAG size of input: 75 DAG size of output: 48 [2019-09-20 19:24:21,782 WARN L191 SmtUtils]: Spent 4.19 s on a formula simplification that was a NOOP. DAG size: 48 [2019-09-20 19:24:26,159 WARN L191 SmtUtils]: Spent 4.36 s on a formula simplification. DAG size of input: 105 DAG size of output: 1 [2019-09-20 19:24:28,545 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-09-20 19:24:31,201 WARN L191 SmtUtils]: Spent 2.63 s on a formula simplification. DAG size of input: 124 DAG size of output: 48 [2019-09-20 19:24:31,856 WARN L191 SmtUtils]: Spent 653.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2019-09-20 19:24:36,099 WARN L191 SmtUtils]: Spent 4.24 s on a formula simplification. DAG size of input: 124 DAG size of output: 48