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/loops/string-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-21 09:47:43,143 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-21 09:47:43,146 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-21 09:47:43,158 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-21 09:47:43,158 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-21 09:47:43,159 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-21 09:47:43,161 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-21 09:47:43,163 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-21 09:47:43,164 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-21 09:47:43,165 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-21 09:47:43,166 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-21 09:47:43,167 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-21 09:47:43,168 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-21 09:47:43,169 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-21 09:47:43,170 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-21 09:47:43,171 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-21 09:47:43,171 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-21 09:47:43,172 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-21 09:47:43,174 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-21 09:47:43,176 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-21 09:47:43,177 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-21 09:47:43,178 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-21 09:47:43,180 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-21 09:47:43,180 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-21 09:47:43,183 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-21 09:47:43,183 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-21 09:47:43,183 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-21 09:47:43,184 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-21 09:47:43,184 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-21 09:47:43,185 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-21 09:47:43,185 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-21 09:47:43,186 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-21 09:47:43,187 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-21 09:47:43,188 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-21 09:47:43,189 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-21 09:47:43,189 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-21 09:47:43,190 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-21 09:47:43,190 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-21 09:47:43,190 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-21 09:47:43,191 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-21 09:47:43,192 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-21 09:47:43,192 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 09:47:43,207 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-21 09:47:43,208 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-21 09:47:43,209 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-21 09:47:43,209 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-21 09:47:43,209 INFO L138 SettingsManager]: * Use SBE=true [2019-09-21 09:47:43,209 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-21 09:47:43,210 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-21 09:47:43,210 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-21 09:47:43,210 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-21 09:47:43,210 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-21 09:47:43,210 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-21 09:47:43,211 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-21 09:47:43,211 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-21 09:47:43,211 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-21 09:47:43,211 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-21 09:47:43,211 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-21 09:47:43,212 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-21 09:47:43,212 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-21 09:47:43,212 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-21 09:47:43,212 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-21 09:47:43,212 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-21 09:47:43,213 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-21 09:47:43,213 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-21 09:47:43,213 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-21 09:47:43,213 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-21 09:47:43,213 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-21 09:47:43,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-21 09:47:43,214 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-21 09:47:43,214 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 09:47:43,245 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-21 09:47:43,258 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-21 09:47:43,261 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-21 09:47:43,263 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-21 09:47:43,263 INFO L275 PluginConnector]: CDTParser initialized [2019-09-21 09:47:43,264 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/string-2.i [2019-09-21 09:47:43,332 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e758a06e/a7bfe3b3f8b94f6589ca9971a84287ce/FLAG1362ad7ef [2019-09-21 09:47:43,753 INFO L306 CDTParser]: Found 1 translation units. [2019-09-21 09:47:43,753 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/string-2.i [2019-09-21 09:47:43,760 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e758a06e/a7bfe3b3f8b94f6589ca9971a84287ce/FLAG1362ad7ef [2019-09-21 09:47:44,171 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e758a06e/a7bfe3b3f8b94f6589ca9971a84287ce [2019-09-21 09:47:44,182 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-21 09:47:44,183 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-21 09:47:44,185 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-21 09:47:44,186 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-21 09:47:44,189 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-21 09:47:44,191 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 09:47:44" (1/1) ... [2019-09-21 09:47:44,194 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f55d4e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:47:44, skipping insertion in model container [2019-09-21 09:47:44,194 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 09:47:44" (1/1) ... [2019-09-21 09:47:44,203 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-21 09:47:44,223 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-21 09:47:44,451 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-21 09:47:44,455 INFO L188 MainTranslator]: Completed pre-run [2019-09-21 09:47:44,571 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-21 09:47:44,598 INFO L192 MainTranslator]: Completed translation [2019-09-21 09:47:44,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:47:44 WrapperNode [2019-09-21 09:47:44,599 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-21 09:47:44,600 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-21 09:47:44,600 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-21 09:47:44,600 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-21 09:47:44,611 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:47:44" (1/1) ... [2019-09-21 09:47:44,612 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:47:44" (1/1) ... [2019-09-21 09:47:44,621 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:47:44" (1/1) ... [2019-09-21 09:47:44,622 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:47:44" (1/1) ... [2019-09-21 09:47:44,632 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:47:44" (1/1) ... [2019-09-21 09:47:44,638 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:47:44" (1/1) ... [2019-09-21 09:47:44,640 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:47:44" (1/1) ... [2019-09-21 09:47:44,643 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-21 09:47:44,643 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-21 09:47:44,643 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-21 09:47:44,643 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-21 09:47:44,644 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:47:44" (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 09:47:44,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-21 09:47:44,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-21 09:47:44,707 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-21 09:47:44,708 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-21 09:47:44,708 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-21 09:47:44,708 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-21 09:47:44,708 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-21 09:47:44,708 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-09-21 09:47:44,708 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-21 09:47:44,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-21 09:47:44,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-21 09:47:44,709 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-21 09:47:44,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-21 09:47:44,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-21 09:47:44,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-21 09:47:45,138 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-21 09:47:45,138 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-21 09:47:45,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 09:47:45 BoogieIcfgContainer [2019-09-21 09:47:45,140 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-21 09:47:45,140 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-21 09:47:45,140 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-21 09:47:45,140 INFO L275 PluginConnector]: Sifa initialized [2019-09-21 09:47:45,142 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 09:47:45" (1/1) ... [2019-09-21 09:47:45,142 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 09:47:45,168 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-21 09:47:45,169 INFO L169 IcfgInterpreter]: Building call graph [2019-09-21 09:47:45,177 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-21 09:47:45,185 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-21 09:47:45,187 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-21 09:47:45,378 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 21 for LOIs [2019-09-21 09:47:51,029 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 264 [2019-09-21 09:47:51,358 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 318 [2019-09-21 09:47:51,599 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 319 DAG size of output: 316 [2019-09-21 09:47:51,896 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 411 DAG size of output: 391 [2019-09-21 09:47:52,062 WARN L191 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 391 [2019-09-21 09:47:52,299 WARN L191 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 392 DAG size of output: 390 [2019-09-21 09:47:52,564 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 504 [2019-09-21 09:47:52,826 WARN L191 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 504 [2019-09-21 09:47:53,172 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 505 DAG size of output: 504 [2019-09-21 09:47:53,686 WARN L191 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 672 DAG size of output: 639 [2019-09-21 09:47:54,049 WARN L191 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 639 [2019-09-21 09:47:54,627 WARN L191 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 640 DAG size of output: 631 [2019-09-21 09:47:55,147 WARN L191 SmtUtils]: Spent 497.00 ms on a formula simplification that was a NOOP. DAG size: 854 [2019-09-21 09:47:55,625 WARN L191 SmtUtils]: Spent 476.00 ms on a formula simplification that was a NOOP. DAG size: 854 [2019-09-21 09:47:56,380 WARN L191 SmtUtils]: Spent 491.00 ms on a formula simplification. DAG size of input: 855 DAG size of output: 852 [2019-09-21 09:47:57,712 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 1121 DAG size of output: 1049 [2019-09-21 09:47:58,599 WARN L191 SmtUtils]: Spent 884.00 ms on a formula simplification. DAG size of input: 1049 DAG size of output: 1048 [2019-09-21 09:48:00,519 WARN L191 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 1050 DAG size of output: 1023 [2019-09-21 09:48:02,147 WARN L191 SmtUtils]: Spent 1.58 s on a formula simplification that was a NOOP. DAG size: 1455 [2019-09-21 09:48:03,661 WARN L191 SmtUtils]: Spent 1.51 s on a formula simplification that was a NOOP. DAG size: 1455 [2019-09-21 09:48:06,023 WARN L191 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 1456 DAG size of output: 1453 [2019-09-21 09:48:12,470 WARN L191 SmtUtils]: Spent 5.45 s on a formula simplification. DAG size of input: 2276 DAG size of output: 2158 [2019-09-21 09:48:15,218 WARN L191 SmtUtils]: Spent 1.64 s on a formula simplification that was a NOOP. DAG size: 1458 [2019-09-21 09:48:17,111 WARN L191 SmtUtils]: Spent 1.89 s on a formula simplification that was a NOOP. DAG size: 1458 [2019-09-21 09:48:19,853 WARN L191 SmtUtils]: Spent 1.58 s on a formula simplification. DAG size of input: 1459 DAG size of output: 1458