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/list-simple/sll2c_append_equal.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 17:28:00,653 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 17:28:00,656 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 17:28:00,668 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 17:28:00,668 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 17:28:00,669 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 17:28:00,670 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 17:28:00,683 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 17:28:00,686 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 17:28:00,687 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 17:28:00,688 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 17:28:00,691 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 17:28:00,691 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 17:28:00,692 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 17:28:00,693 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 17:28:00,697 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 17:28:00,698 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 17:28:00,699 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 17:28:00,704 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 17:28:00,708 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 17:28:00,710 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 17:28:00,711 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 17:28:00,714 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 17:28:00,716 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 17:28:00,719 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 17:28:00,720 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 17:28:00,720 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 17:28:00,723 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 17:28:00,724 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 17:28:00,727 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 17:28:00,728 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 17:28:00,729 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 17:28:00,729 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 17:28:00,730 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 17:28:00,733 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 17:28:00,733 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 17:28:00,734 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 17:28:00,734 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 17:28:00,734 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 17:28:00,736 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 17:28:00,739 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 17:28:00,741 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 17:28:00,763 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 17:28:00,763 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 17:28:00,765 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-20 17:28:00,766 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-20 17:28:00,766 INFO L138 SettingsManager]: * Use SBE=true [2019-09-20 17:28:00,766 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 17:28:00,766 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 17:28:00,767 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-20 17:28:00,767 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 17:28:00,767 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 17:28:00,768 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 17:28:00,768 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 17:28:00,769 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 17:28:00,769 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 17:28:00,769 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 17:28:00,769 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-20 17:28:00,770 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 17:28:00,770 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 17:28:00,770 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 17:28:00,770 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-20 17:28:00,770 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-20 17:28:00,771 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 17:28:00,771 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 17:28:00,771 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 17:28:00,771 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-20 17:28:00,772 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-20 17:28:00,772 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 17:28:00,772 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-20 17:28:00,772 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 17:28:00,807 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 17:28:00,819 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 17:28:00,823 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 17:28:00,824 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 17:28:00,825 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 17:28:00,825 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/sll2c_append_equal.i [2019-09-20 17:28:00,886 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8a5c648a/bed061d497204e7e8bdda5bfddb93d57/FLAG0fb202bd1 [2019-09-20 17:28:01,430 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 17:28:01,431 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-simple/sll2c_append_equal.i [2019-09-20 17:28:01,451 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8a5c648a/bed061d497204e7e8bdda5bfddb93d57/FLAG0fb202bd1 [2019-09-20 17:28:01,746 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8a5c648a/bed061d497204e7e8bdda5bfddb93d57 [2019-09-20 17:28:01,756 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 17:28:01,758 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 17:28:01,759 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 17:28:01,760 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 17:28:01,764 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 17:28:01,765 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 05:28:01" (1/1) ... [2019-09-20 17:28:01,768 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34c7e80b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 05:28:01, skipping insertion in model container [2019-09-20 17:28:01,768 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 05:28:01" (1/1) ... [2019-09-20 17:28:01,776 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 17:28:01,829 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 17:28:02,288 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 17:28:02,305 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 17:28:02,387 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 17:28:02,457 INFO L192 MainTranslator]: Completed translation [2019-09-20 17:28:02,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 05:28:02 WrapperNode [2019-09-20 17:28:02,458 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 17:28:02,458 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 17:28:02,459 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 17:28:02,459 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 17:28:02,469 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 05:28:02" (1/1) ... [2019-09-20 17:28:02,469 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 05:28:02" (1/1) ... [2019-09-20 17:28:02,489 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 05:28:02" (1/1) ... [2019-09-20 17:28:02,490 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 05:28:02" (1/1) ... [2019-09-20 17:28:02,510 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 05:28:02" (1/1) ... [2019-09-20 17:28:02,516 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 05:28:02" (1/1) ... [2019-09-20 17:28:02,520 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 05:28:02" (1/1) ... [2019-09-20 17:28:02,528 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 17:28:02,534 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 17:28:02,535 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 17:28:02,535 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 17:28:02,536 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 05:28:02" (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 17:28:02,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 17:28:02,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 17:28:02,602 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-09-20 17:28:02,602 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-09-20 17:28:02,602 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-09-20 17:28:02,602 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2019-09-20 17:28:02,602 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_circular_create [2019-09-20 17:28:02,603 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_circular_destroy [2019-09-20 17:28:02,603 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_circular_append [2019-09-20 17:28:02,603 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 17:28:02,603 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 17:28:02,603 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-09-20 17:28:02,604 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-09-20 17:28:02,604 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-09-20 17:28:02,604 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-09-20 17:28:02,604 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-09-20 17:28:02,605 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-09-20 17:28:02,605 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-09-20 17:28:02,605 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-09-20 17:28:02,605 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-09-20 17:28:02,605 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-09-20 17:28:02,605 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-09-20 17:28:02,605 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-09-20 17:28:02,605 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-09-20 17:28:02,606 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-09-20 17:28:02,606 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-09-20 17:28:02,606 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-09-20 17:28:02,606 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-09-20 17:28:02,606 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-09-20 17:28:02,606 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-09-20 17:28:02,607 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-09-20 17:28:02,607 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-09-20 17:28:02,607 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-09-20 17:28:02,607 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-09-20 17:28:02,607 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-09-20 17:28:02,607 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-09-20 17:28:02,608 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-09-20 17:28:02,608 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-09-20 17:28:02,608 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-09-20 17:28:02,608 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-09-20 17:28:02,608 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-09-20 17:28:02,608 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-09-20 17:28:02,609 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-09-20 17:28:02,609 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-09-20 17:28:02,609 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-09-20 17:28:02,609 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-09-20 17:28:02,609 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-09-20 17:28:02,609 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-09-20 17:28:02,609 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-09-20 17:28:02,610 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-09-20 17:28:02,610 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-09-20 17:28:02,610 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-09-20 17:28:02,610 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-09-20 17:28:02,610 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-09-20 17:28:02,610 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-09-20 17:28:02,610 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-09-20 17:28:02,611 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-09-20 17:28:02,611 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-09-20 17:28:02,611 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-09-20 17:28:02,611 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-09-20 17:28:02,611 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-09-20 17:28:02,611 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-09-20 17:28:02,612 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-09-20 17:28:02,612 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 17:28:02,612 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-20 17:28:02,612 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-09-20 17:28:02,612 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 17:28:02,612 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-09-20 17:28:02,613 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-09-20 17:28:02,613 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-09-20 17:28:02,613 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-09-20 17:28:02,613 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-09-20 17:28:02,613 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-09-20 17:28:02,613 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-09-20 17:28:02,614 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-09-20 17:28:02,614 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-09-20 17:28:02,614 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-09-20 17:28:02,614 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-09-20 17:28:02,614 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-09-20 17:28:02,614 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-09-20 17:28:02,614 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-09-20 17:28:02,615 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-09-20 17:28:02,615 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-09-20 17:28:02,615 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-09-20 17:28:02,615 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-09-20 17:28:02,615 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-09-20 17:28:02,615 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-09-20 17:28:02,616 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-09-20 17:28:02,616 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-09-20 17:28:02,616 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-09-20 17:28:02,616 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-09-20 17:28:02,616 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-09-20 17:28:02,616 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-09-20 17:28:02,617 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-09-20 17:28:02,617 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-09-20 17:28:02,617 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-09-20 17:28:02,617 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-09-20 17:28:02,617 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-09-20 17:28:02,617 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-09-20 17:28:02,617 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-09-20 17:28:02,618 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-09-20 17:28:02,618 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-09-20 17:28:02,618 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-09-20 17:28:02,618 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-09-20 17:28:02,618 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-09-20 17:28:02,618 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-09-20 17:28:02,618 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-09-20 17:28:02,618 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-09-20 17:28:02,619 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-09-20 17:28:02,619 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-09-20 17:28:02,619 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-09-20 17:28:02,619 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-09-20 17:28:02,619 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-09-20 17:28:02,619 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-09-20 17:28:02,619 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-09-20 17:28:02,620 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-09-20 17:28:02,620 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-09-20 17:28:02,620 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2019-09-20 17:28:02,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 17:28:02,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 17:28:02,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 17:28:02,620 INFO L130 BoogieDeclarations]: Found specification of procedure sll_circular_create [2019-09-20 17:28:02,621 INFO L130 BoogieDeclarations]: Found specification of procedure sll_circular_destroy [2019-09-20 17:28:02,621 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 17:28:02,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 17:28:02,621 INFO L130 BoogieDeclarations]: Found specification of procedure sll_circular_append [2019-09-20 17:28:02,621 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 17:28:02,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 17:28:02,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-09-20 17:28:02,622 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 17:28:02,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 17:28:02,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 17:28:03,015 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-09-20 17:28:03,333 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 17:28:03,334 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-09-20 17:28:03,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 05:28:03 BoogieIcfgContainer [2019-09-20 17:28:03,336 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 17:28:03,337 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-20 17:28:03,337 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-20 17:28:03,337 INFO L275 PluginConnector]: Sifa initialized [2019-09-20 17:28:03,340 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 05:28:03" (1/1) ... [2019-09-20 17:28:03,340 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 17:28:03,366 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-20 17:28:03,366 INFO L169 IcfgInterpreter]: Building call graph [2019-09-20 17:28:03,374 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-20 17:28:03,381 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-20 17:28:03,383 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-20 17:28:03,586 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 25 for LOIs [2019-09-20 17:28:03,832 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2019-09-20 17:28:03,947 WARN L98 DagInterpreter]: A function never reaches its return [2019-09-20 17:28:05,453 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 51 [2019-09-20 17:28:05,559 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2019-09-20 17:28:05,686 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2019-09-20 17:28:05,918 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2019-09-20 17:28:06,205 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2019-09-20 17:28:06,408 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2019-09-20 17:28:06,615 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-20 17:28:06,838 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-20 17:28:07,038 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-20 17:28:07,240 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2019-09-20 17:28:07,453 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2019-09-20 17:28:07,634 WARN L191 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2019-09-20 17:28:07,835 WARN L191 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2019-09-20 17:28:08,010 WARN L191 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2019-09-20 17:28:08,287 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2019-09-20 17:28:08,516 WARN L191 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2019-09-20 17:28:08,731 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-20 17:28:08,949 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2019-09-20 17:28:09,157 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2019-09-20 17:28:09,339 WARN L191 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2019-09-20 17:28:09,665 WARN L191 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2019-09-20 17:28:09,842 WARN L191 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2019-09-20 17:28:10,219 WARN L191 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2019-09-20 17:28:10,654 WARN L191 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 87 [2019-09-20 17:28:10,865 WARN L191 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-20 17:28:11,324 WARN L191 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 87 [2019-09-20 17:28:11,728 WARN L191 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2019-09-20 17:28:12,107 WARN L191 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2019-09-20 17:28:12,473 WARN L191 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2019-09-20 17:28:12,850 WARN L191 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2019-09-20 17:28:13,229 WARN L191 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2019-09-20 17:28:13,589 WARN L191 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2019-09-20 17:28:13,958 WARN L191 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2019-09-20 17:28:14,292 WARN L191 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2019-09-20 17:28:14,620 WARN L191 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-20 17:28:14,949 WARN L191 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2019-09-20 17:28:15,263 WARN L191 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2019-09-20 17:28:15,582 WARN L191 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-20 17:28:15,865 WARN L191 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2019-09-20 17:28:16,138 WARN L191 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2019-09-20 17:28:16,417 WARN L191 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2019-09-20 17:28:17,102 WARN L191 SmtUtils]: Spent 641.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2019-09-20 17:28:17,606 WARN L191 SmtUtils]: Spent 488.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2019-09-20 17:28:18,036 WARN L191 SmtUtils]: Spent 413.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2019-09-20 17:28:18,415 WARN L191 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2019-09-20 17:28:18,732 WARN L191 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2019-09-20 17:28:19,036 WARN L191 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2019-09-20 17:28:19,326 WARN L191 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-20 17:28:19,591 WARN L191 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2019-09-20 17:28:19,834 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2019-09-20 17:28:20,285 WARN L191 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2019-09-20 17:28:20,518 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2019-09-20 17:28:20,983 WARN L191 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2019-09-20 17:28:21,564 WARN L191 SmtUtils]: Spent 577.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 93 [2019-09-20 17:28:21,846 WARN L191 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2019-09-20 17:28:22,426 WARN L191 SmtUtils]: Spent 574.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 93 [2019-09-20 17:28:22,971 WARN L191 SmtUtils]: Spent 500.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-09-20 17:28:23,469 WARN L191 SmtUtils]: Spent 484.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2019-09-20 17:28:23,971 WARN L191 SmtUtils]: Spent 466.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2019-09-20 17:28:24,434 WARN L191 SmtUtils]: Spent 450.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2019-09-20 17:28:24,890 WARN L191 SmtUtils]: Spent 442.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2019-09-20 17:28:25,334 WARN L191 SmtUtils]: Spent 431.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2019-09-20 17:28:25,822 WARN L191 SmtUtils]: Spent 468.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2019-09-20 17:28:26,255 WARN L191 SmtUtils]: Spent 420.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2019-09-20 17:28:26,684 WARN L191 SmtUtils]: Spent 413.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2019-09-20 17:28:27,088 WARN L191 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2019-09-20 17:28:27,498 WARN L191 SmtUtils]: Spent 398.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2019-09-20 17:28:27,901 WARN L191 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2019-09-20 17:28:28,305 WARN L191 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2019-09-20 17:28:28,697 WARN L191 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-20 17:28:29,071 WARN L191 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-20 17:28:29,455 WARN L191 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2019-09-20 17:28:29,826 WARN L191 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2019-09-20 17:28:30,178 WARN L191 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-20 17:28:30,532 WARN L191 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2019-09-20 17:28:30,854 WARN L191 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2019-09-20 17:28:32,846 WARN L191 SmtUtils]: Spent 1.96 s on a formula simplification that was a NOOP. DAG size: 157 [2019-09-20 17:28:34,213 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification that was a NOOP. DAG size: 152 [2019-09-20 17:28:35,255 WARN L191 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 145 [2019-09-20 17:28:36,062 WARN L191 SmtUtils]: Spent 796.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2019-09-20 17:28:36,690 WARN L191 SmtUtils]: Spent 614.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2019-09-20 17:28:37,241 WARN L191 SmtUtils]: Spent 529.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2019-09-20 17:28:37,699 WARN L191 SmtUtils]: Spent 441.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2019-09-20 17:28:38,158 WARN L191 SmtUtils]: Spent 441.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2019-09-20 17:28:38,535 WARN L191 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2019-09-20 17:28:38,904 WARN L191 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-09-20 17:28:39,259 WARN L191 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2019-09-20 17:28:39,587 WARN L191 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-20 17:28:40,215 WARN L191 SmtUtils]: Spent 624.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 69 [2019-09-20 17:28:40,511 WARN L191 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2019-09-20 17:28:41,117 WARN L191 SmtUtils]: Spent 585.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2019-09-20 17:28:41,833 WARN L191 SmtUtils]: Spent 711.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 94 [2019-09-20 17:28:42,169 WARN L191 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2019-09-20 17:28:42,810 WARN L191 SmtUtils]: Spent 635.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 91 [2019-09-20 17:28:43,458 WARN L191 SmtUtils]: Spent 601.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2019-09-20 17:28:44,064 WARN L191 SmtUtils]: Spent 588.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2019-09-20 17:28:44,689 WARN L191 SmtUtils]: Spent 610.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2019-09-20 17:28:45,271 WARN L191 SmtUtils]: Spent 568.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2019-09-20 17:28:45,833 WARN L191 SmtUtils]: Spent 548.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2019-09-20 17:28:46,386 WARN L191 SmtUtils]: Spent 539.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2019-09-20 17:28:46,934 WARN L191 SmtUtils]: Spent 527.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2019-09-20 17:28:47,493 WARN L191 SmtUtils]: Spent 545.00 ms on a formula simplification that was a NOOP. DAG size: 153