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_DDA -i ../../../trunk/examples/svcomp/loop-crafted/simple_array_index_value_4.i.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 17:20:11,548 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 17:20:11,550 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 17:20:11,561 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 17:20:11,562 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 17:20:11,563 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 17:20:11,564 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 17:20:11,566 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 17:20:11,567 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 17:20:11,568 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 17:20:11,569 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 17:20:11,570 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 17:20:11,571 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 17:20:11,572 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 17:20:11,573 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 17:20:11,574 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 17:20:11,575 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 17:20:11,576 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 17:20:11,577 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 17:20:11,579 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 17:20:11,581 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 17:20:11,582 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 17:20:11,583 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 17:20:11,584 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 17:20:11,587 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 17:20:11,587 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 17:20:11,587 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 17:20:11,588 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 17:20:11,589 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 17:20:11,590 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 17:20:11,590 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 17:20:11,591 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 17:20:11,592 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 17:20:11,592 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 17:20:11,593 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 17:20:11,594 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 17:20:11,594 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 17:20:11,594 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 17:20:11,595 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 17:20:11,596 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 17:20:11,596 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 17:20:11,597 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 17:20:11,611 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 17:20:11,612 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 17:20:11,613 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-20 17:20:11,613 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-20 17:20:11,613 INFO L138 SettingsManager]: * Use SBE=true [2019-09-20 17:20:11,613 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 17:20:11,614 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 17:20:11,614 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-20 17:20:11,614 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 17:20:11,614 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 17:20:11,614 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 17:20:11,615 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 17:20:11,615 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 17:20:11,615 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 17:20:11,615 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 17:20:11,615 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-20 17:20:11,615 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 17:20:11,616 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 17:20:11,616 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 17:20:11,616 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-20 17:20:11,616 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-20 17:20:11,616 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 17:20:11,617 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 17:20:11,617 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 17:20:11,617 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-20 17:20:11,617 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-20 17:20:11,617 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 17:20:11,618 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-20 17:20:11,618 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_DDA [2019-09-20 17:20:11,661 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 17:20:11,672 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 17:20:11,675 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 17:20:11,677 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 17:20:11,677 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 17:20:11,678 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-crafted/simple_array_index_value_4.i.v+lhb-reducer.c [2019-09-20 17:20:11,738 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb2f16b1c/e4bcff9c77ed41e4b3755e689f11bd76/FLAG276d666c2 [2019-09-20 17:20:12,210 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 17:20:12,211 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-crafted/simple_array_index_value_4.i.v+lhb-reducer.c [2019-09-20 17:20:12,228 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb2f16b1c/e4bcff9c77ed41e4b3755e689f11bd76/FLAG276d666c2 [2019-09-20 17:20:12,576 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb2f16b1c/e4bcff9c77ed41e4b3755e689f11bd76 [2019-09-20 17:20:12,584 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 17:20:12,585 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 17:20:12,586 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 17:20:12,586 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 17:20:12,589 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 17:20:12,590 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 05:20:12" (1/1) ... [2019-09-20 17:20:12,593 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@134374ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 05:20:12, skipping insertion in model container [2019-09-20 17:20:12,593 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 05:20:12" (1/1) ... [2019-09-20 17:20:12,599 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 17:20:12,621 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 17:20:12,810 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 17:20:12,816 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 17:20:12,926 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 17:20:12,946 INFO L192 MainTranslator]: Completed translation [2019-09-20 17:20:12,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 05:20:12 WrapperNode [2019-09-20 17:20:12,947 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 17:20:12,947 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 17:20:12,948 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 17:20:12,948 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 17:20:12,957 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 05:20:12" (1/1) ... [2019-09-20 17:20:12,958 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 05:20:12" (1/1) ... [2019-09-20 17:20:12,964 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 05:20:12" (1/1) ... [2019-09-20 17:20:12,965 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 05:20:12" (1/1) ... [2019-09-20 17:20:12,974 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 05:20:12" (1/1) ... [2019-09-20 17:20:12,978 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 05:20:12" (1/1) ... [2019-09-20 17:20:12,980 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 05:20:12" (1/1) ... [2019-09-20 17:20:12,983 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 17:20:12,983 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 17:20:12,983 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 17:20:12,983 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 17:20:12,984 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 05:20:12" (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 17:20:13,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 17:20:13,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 17:20:13,047 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 17:20:13,047 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 17:20:13,047 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-20 17:20:13,047 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-20 17:20:13,048 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-09-20 17:20:13,048 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 17:20:13,048 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 17:20:13,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 17:20:13,048 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 17:20:13,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 17:20:13,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 17:20:13,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 17:20:13,448 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 17:20:13,449 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-20 17:20:13,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 05:20:13 BoogieIcfgContainer [2019-09-20 17:20:13,450 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 17:20:13,451 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-20 17:20:13,451 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-20 17:20:13,451 INFO L275 PluginConnector]: Sifa initialized [2019-09-20 17:20:13,452 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 05:20:13" (1/1) ... [2019-09-20 17:20:13,453 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_DDA ♦ Intern Fluid=SizeLimitFluid [2019-09-20 17:20:13,479 INFO L162 IcfgInterpreter]: Started Sifa with 4 locations of interest [2019-09-20 17:20:13,480 INFO L169 IcfgInterpreter]: Building call graph [2019-09-20 17:20:13,487 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-20 17:20:13,494 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-20 17:20:13,496 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-20 17:20:13,779 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 23 for LOIs [2019-09-20 17:20:14,093 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 1 [2019-09-20 17:20:14,597 WARN L191 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 75 [2019-09-20 17:20:14,756 WARN L191 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2019-09-20 17:20:16,534 WARN L191 SmtUtils]: Spent 1.70 s on a formula simplification. DAG size of input: 97 DAG size of output: 76 [2019-09-20 17:20:16,878 WARN L191 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 80 [2019-09-20 17:20:17,053 WARN L191 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2019-09-20 17:20:17,505 WARN L191 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 82 [2019-09-20 17:20:18,058 WARN L191 SmtUtils]: Spent 540.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 89 [2019-09-20 17:20:18,323 WARN L191 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2019-09-20 17:20:18,908 WARN L191 SmtUtils]: Spent 579.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 90 [2019-09-20 17:20:28,572 WARN L191 SmtUtils]: Spent 7.76 s on a formula simplification. DAG size of input: 131 DAG size of output: 1 [2019-09-20 17:20:48,156 WARN L191 SmtUtils]: Spent 19.52 s on a formula simplification. DAG size of input: 129 DAG size of output: 76 [2019-09-20 17:20:48,811 WARN L191 SmtUtils]: Spent 503.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 77 [2019-09-20 17:20:49,111 WARN L191 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 81 [2019-09-20 17:20:49,298 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2019-09-20 17:20:49,795 WARN L191 SmtUtils]: Spent 421.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 83 [2019-09-20 17:20:59,443 WARN L191 SmtUtils]: Spent 7.22 s on a formula simplification. DAG size of input: 131 DAG size of output: 1