/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/list-ext2-properties/simple_search_value-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 03:54:02,782 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 03:54:02,785 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 03:54:02,805 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 03:54:02,806 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 03:54:02,808 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 03:54:02,810 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 03:54:02,823 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 03:54:02,825 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 03:54:02,826 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 03:54:02,828 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 03:54:02,829 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 03:54:02,830 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 03:54:02,833 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 03:54:02,836 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 03:54:02,838 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 03:54:02,840 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 03:54:02,843 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 03:54:02,845 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 03:54:02,851 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 03:54:02,856 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 03:54:02,857 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 03:54:02,858 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 03:54:02,859 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 03:54:02,862 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 03:54:02,863 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 03:54:02,864 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 03:54:02,866 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 03:54:02,866 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 03:54:02,869 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 03:54:02,869 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 03:54:02,871 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 03:54:02,872 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 03:54:02,873 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 03:54:02,875 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 03:54:02,875 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 03:54:02,876 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 03:54:02,876 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 03:54:02,876 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 03:54:02,880 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 03:54:02,881 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 03:54:02,882 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 [2019-11-07 03:54:02,899 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 03:54:02,900 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 03:54:02,901 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 03:54:02,901 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 03:54:02,901 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 03:54:02,901 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 03:54:02,903 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 03:54:02,903 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 03:54:02,903 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 03:54:02,903 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 03:54:02,905 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 03:54:02,905 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 03:54:02,905 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 03:54:02,905 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 03:54:02,906 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 03:54:02,906 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 03:54:02,906 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 03:54:02,906 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 03:54:02,907 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 03:54:02,907 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 03:54:02,907 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 03:54:02,907 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 03:54:02,907 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 03:54:02,908 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 03:54:02,908 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 03:54:02,908 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 03:54:02,908 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 03:54:02,908 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 03:54:02,909 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN 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: Simplification Technique -> SIMPLIFY_QUICK [2019-11-07 03:54:03,239 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 03:54:03,260 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 03:54:03,264 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 03:54:03,266 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 03:54:03,266 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 03:54:03,267 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-ext2-properties/simple_search_value-1.i [2019-11-07 03:54:03,338 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5947cf759/e775402164584354a294b6f430e556ef/FLAG0e69d87c4 [2019-11-07 03:54:03,855 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 03:54:03,856 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-ext2-properties/simple_search_value-1.i [2019-11-07 03:54:03,870 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5947cf759/e775402164584354a294b6f430e556ef/FLAG0e69d87c4 [2019-11-07 03:54:04,176 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5947cf759/e775402164584354a294b6f430e556ef [2019-11-07 03:54:04,185 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 03:54:04,186 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 03:54:04,187 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 03:54:04,187 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 03:54:04,191 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 03:54:04,192 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:54:04" (1/1) ... [2019-11-07 03:54:04,195 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2eebbf78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:54:04, skipping insertion in model container [2019-11-07 03:54:04,195 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:54:04" (1/1) ... [2019-11-07 03:54:04,203 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 03:54:04,243 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 03:54:04,691 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 03:54:04,703 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 03:54:04,754 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 03:54:04,803 INFO L192 MainTranslator]: Completed translation [2019-11-07 03:54:04,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:54:04 WrapperNode [2019-11-07 03:54:04,804 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 03:54:04,805 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 03:54:04,805 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 03:54:04,805 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 03:54:04,819 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:54:04" (1/1) ... [2019-11-07 03:54:04,819 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:54:04" (1/1) ... [2019-11-07 03:54:04,835 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:54:04" (1/1) ... [2019-11-07 03:54:04,836 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:54:04" (1/1) ... [2019-11-07 03:54:04,850 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:54:04" (1/1) ... [2019-11-07 03:54:04,856 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:54:04" (1/1) ... [2019-11-07 03:54:04,859 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:54:04" (1/1) ... [2019-11-07 03:54:04,865 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 03:54:04,866 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 03:54:04,866 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 03:54:04,866 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 03:54:04,867 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:54:04" (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 [2019-11-07 03:54:04,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 03:54:04,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 03:54:04,932 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-07 03:54:04,932 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-07 03:54:04,932 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-11-07 03:54:04,933 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 03:54:04,933 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 03:54:04,933 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 03:54:04,933 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-07 03:54:04,933 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-07 03:54:04,933 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-07 03:54:04,934 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-07 03:54:04,934 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-07 03:54:04,934 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-07 03:54:04,934 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-07 03:54:04,934 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-07 03:54:04,935 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-07 03:54:04,935 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-07 03:54:04,935 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-07 03:54:04,935 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-07 03:54:04,935 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-07 03:54:04,935 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-07 03:54:04,936 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-07 03:54:04,936 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-07 03:54:04,936 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-07 03:54:04,936 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-07 03:54:04,936 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-07 03:54:04,936 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-07 03:54:04,937 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-07 03:54:04,937 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-07 03:54:04,937 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-07 03:54:04,937 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-07 03:54:04,937 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-07 03:54:04,937 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-07 03:54:04,938 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-07 03:54:04,938 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-07 03:54:04,938 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-07 03:54:04,938 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-07 03:54:04,938 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-07 03:54:04,938 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-07 03:54:04,938 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-07 03:54:04,938 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-07 03:54:04,938 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-07 03:54:04,938 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-07 03:54:04,939 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-07 03:54:04,939 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-07 03:54:04,939 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-07 03:54:04,939 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-07 03:54:04,939 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-07 03:54:04,939 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-07 03:54:04,939 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-07 03:54:04,940 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-07 03:54:04,940 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-07 03:54:04,940 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-07 03:54:04,940 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-07 03:54:04,940 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-07 03:54:04,940 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-07 03:54:04,940 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-07 03:54:04,941 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-07 03:54:04,941 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-07 03:54:04,941 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 03:54:04,941 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-07 03:54:04,941 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-07 03:54:04,942 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 03:54:04,942 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-11-07 03:54:04,942 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-07 03:54:04,942 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-07 03:54:04,942 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-07 03:54:04,942 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-07 03:54:04,942 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-07 03:54:04,943 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-07 03:54:04,943 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-07 03:54:04,943 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-07 03:54:04,943 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-07 03:54:04,943 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-07 03:54:04,943 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-07 03:54:04,944 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-07 03:54:04,944 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-07 03:54:04,944 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-07 03:54:04,944 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-07 03:54:04,944 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-07 03:54:04,944 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-07 03:54:04,944 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-07 03:54:04,945 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-07 03:54:04,945 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-07 03:54:04,945 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-07 03:54:04,945 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-07 03:54:04,945 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-07 03:54:04,945 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-07 03:54:04,945 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-07 03:54:04,946 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-07 03:54:04,946 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-07 03:54:04,946 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-07 03:54:04,946 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-07 03:54:04,946 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-07 03:54:04,946 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-07 03:54:04,946 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-07 03:54:04,947 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-07 03:54:04,947 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-07 03:54:04,947 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-07 03:54:04,947 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-07 03:54:04,947 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-07 03:54:04,947 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-07 03:54:04,948 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-07 03:54:04,948 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-07 03:54:04,948 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-07 03:54:04,948 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-07 03:54:04,948 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-07 03:54:04,948 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-07 03:54:04,948 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-07 03:54:04,949 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-07 03:54:04,949 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-07 03:54:04,949 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-07 03:54:04,949 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-11-07 03:54:04,949 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 03:54:04,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 03:54:04,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 03:54:04,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 03:54:04,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 03:54:04,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 03:54:04,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 03:54:04,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 03:54:04,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 03:54:05,317 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-11-07 03:54:05,618 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 03:54:05,619 INFO L284 CfgBuilder]: Removed 2 assume(true) statements. [2019-11-07 03:54:05,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:54:05 BoogieIcfgContainer [2019-11-07 03:54:05,620 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 03:54:05,621 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 03:54:05,622 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 03:54:05,625 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 03:54:05,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:54:04" (1/3) ... [2019-11-07 03:54:05,626 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20e661ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:54:05, skipping insertion in model container [2019-11-07 03:54:05,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:54:04" (2/3) ... [2019-11-07 03:54:05,627 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20e661ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:54:05, skipping insertion in model container [2019-11-07 03:54:05,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:54:05" (3/3) ... [2019-11-07 03:54:05,629 INFO L109 eAbstractionObserver]: Analyzing ICFG simple_search_value-1.i [2019-11-07 03:54:05,639 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 03:54:05,647 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 03:54:05,657 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 03:54:05,681 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 03:54:05,681 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 03:54:05,681 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 03:54:05,681 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 03:54:05,682 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 03:54:05,682 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 03:54:05,682 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 03:54:05,682 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 03:54:05,697 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2019-11-07 03:54:05,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-07 03:54:05,704 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:54:05,705 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 03:54:05,706 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:54:05,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:54:05,711 INFO L82 PathProgramCache]: Analyzing trace with hash -1748319836, now seen corresponding path program 1 times [2019-11-07 03:54:05,722 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:54:05,722 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198312677] [2019-11-07 03:54:05,723 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:54:05,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:54:05,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 03:54:05,865 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198312677] [2019-11-07 03:54:05,866 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 03:54:05,866 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 03:54:05,867 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994206316] [2019-11-07 03:54:05,872 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 03:54:05,873 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 03:54:05,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 03:54:05,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 03:54:05,893 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 2 states. [2019-11-07 03:54:05,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 03:54:05,919 INFO L93 Difference]: Finished difference Result 33 states and 39 transitions. [2019-11-07 03:54:05,920 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 03:54:05,921 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2019-11-07 03:54:05,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 03:54:05,930 INFO L225 Difference]: With dead ends: 33 [2019-11-07 03:54:05,930 INFO L226 Difference]: Without dead ends: 16 [2019-11-07 03:54:05,934 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 03:54:05,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-11-07 03:54:05,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-11-07 03:54:05,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-07 03:54:05,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2019-11-07 03:54:05,976 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 12 [2019-11-07 03:54:05,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 03:54:05,977 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2019-11-07 03:54:05,977 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 03:54:05,977 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2019-11-07 03:54:05,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-07 03:54:05,978 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:54:05,978 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 03:54:05,979 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:54:05,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:54:05,980 INFO L82 PathProgramCache]: Analyzing trace with hash -926616102, now seen corresponding path program 1 times [2019-11-07 03:54:05,980 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:54:05,980 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842862550] [2019-11-07 03:54:05,980 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:54:06,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:54:06,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 03:54:06,103 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842862550] [2019-11-07 03:54:06,104 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 03:54:06,104 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-07 03:54:06,104 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631906244] [2019-11-07 03:54:06,107 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-07 03:54:06,108 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 03:54:06,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-07 03:54:06,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-07 03:54:06,109 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 4 states. [2019-11-07 03:54:06,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 03:54:06,186 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2019-11-07 03:54:06,188 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-07 03:54:06,188 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2019-11-07 03:54:06,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 03:54:06,189 INFO L225 Difference]: With dead ends: 25 [2019-11-07 03:54:06,190 INFO L226 Difference]: Without dead ends: 22 [2019-11-07 03:54:06,191 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-07 03:54:06,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-11-07 03:54:06,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 17. [2019-11-07 03:54:06,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-11-07 03:54:06,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2019-11-07 03:54:06,200 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 13 [2019-11-07 03:54:06,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 03:54:06,200 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2019-11-07 03:54:06,201 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-07 03:54:06,201 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2019-11-07 03:54:06,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-07 03:54:06,203 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:54:06,203 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 03:54:06,203 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:54:06,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:54:06,204 INFO L82 PathProgramCache]: Analyzing trace with hash 1339791088, now seen corresponding path program 1 times [2019-11-07 03:54:06,204 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:54:06,204 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861364992] [2019-11-07 03:54:06,205 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:54:06,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:54:06,337 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-07 03:54:06,338 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861364992] [2019-11-07 03:54:06,338 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 03:54:06,338 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-07 03:54:06,338 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071306370] [2019-11-07 03:54:06,339 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-07 03:54:06,339 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 03:54:06,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-07 03:54:06,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-07 03:54:06,340 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 4 states. [2019-11-07 03:54:06,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 03:54:06,376 INFO L93 Difference]: Finished difference Result 27 states and 29 transitions. [2019-11-07 03:54:06,380 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-07 03:54:06,380 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2019-11-07 03:54:06,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 03:54:06,381 INFO L225 Difference]: With dead ends: 27 [2019-11-07 03:54:06,381 INFO L226 Difference]: Without dead ends: 21 [2019-11-07 03:54:06,382 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-07 03:54:06,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-11-07 03:54:06,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2019-11-07 03:54:06,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-11-07 03:54:06,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2019-11-07 03:54:06,387 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 14 [2019-11-07 03:54:06,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 03:54:06,388 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2019-11-07 03:54:06,388 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-07 03:54:06,388 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2019-11-07 03:54:06,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-07 03:54:06,388 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:54:06,389 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 03:54:06,389 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:54:06,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:54:06,389 INFO L82 PathProgramCache]: Analyzing trace with hash -124297803, now seen corresponding path program 1 times [2019-11-07 03:54:06,390 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:54:06,390 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282398366] [2019-11-07 03:54:06,390 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:54:06,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:54:06,464 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-07 03:54:06,466 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282398366] [2019-11-07 03:54:06,467 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1124126709] [2019-11-07 03:54:06,467 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 03:54:06,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:54:06,614 INFO L256 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-07 03:54:06,620 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 03:54:06,655 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 03:54:06,674 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-07 03:54:06,674 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 03:54:06,690 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 03:54:06,691 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 03:54:06,692 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 03:54:06,736 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-07 03:54:06,736 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1593392734] [2019-11-07 03:54:06,765 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2019-11-07 03:54:06,765 INFO L166 IcfgInterpreter]: Building call graph [2019-11-07 03:54:06,772 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-07 03:54:06,777 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-07 03:54:06,778 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-07 03:54:06,903 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 27 for LOIs [2019-11-07 03:54:07,318 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 03:54:07,726 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 10 for LOIs [2019-11-07 03:54:07,728 INFO L180 IcfgInterpreter]: Interpretation finished [2019-11-07 03:54:08,117 INFO L218 FreeRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-11-07 03:54:08,118 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 11] total 18 [2019-11-07 03:54:08,119 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000896891] [2019-11-07 03:54:08,120 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-11-07 03:54:08,120 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 03:54:08,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-11-07 03:54:08,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2019-11-07 03:54:08,121 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand 18 states. [2019-11-07 03:54:09,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 03:54:09,447 INFO L93 Difference]: Finished difference Result 39 states and 43 transitions. [2019-11-07 03:54:09,447 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2019-11-07 03:54:09,448 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 18 [2019-11-07 03:54:09,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 03:54:09,449 INFO L225 Difference]: With dead ends: 39 [2019-11-07 03:54:09,449 INFO L226 Difference]: Without dead ends: 33 [2019-11-07 03:54:09,451 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=208, Invalid=1052, Unknown=0, NotChecked=0, Total=1260 [2019-11-07 03:54:09,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-11-07 03:54:09,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 31. [2019-11-07 03:54:09,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-11-07 03:54:09,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2019-11-07 03:54:09,458 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 18 [2019-11-07 03:54:09,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 03:54:09,458 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2019-11-07 03:54:09,458 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-11-07 03:54:09,458 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2019-11-07 03:54:09,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-07 03:54:09,459 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:54:09,460 INFO L410 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 03:54:09,664 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 03:54:09,664 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:54:09,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:54:09,665 INFO L82 PathProgramCache]: Analyzing trace with hash -886164732, now seen corresponding path program 2 times [2019-11-07 03:54:09,665 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:54:09,665 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135766114] [2019-11-07 03:54:09,665 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:54:09,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:54:09,790 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-07 03:54:09,790 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135766114] [2019-11-07 03:54:09,791 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1067709489] [2019-11-07 03:54:09,791 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 03:54:10,018 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2019-11-07 03:54:10,018 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-07 03:54:10,021 INFO L256 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-07 03:54:10,023 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 03:54:10,041 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-07 03:54:10,042 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 03:54:10,100 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-07 03:54:10,100 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [887271324] [2019-11-07 03:54:10,102 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2019-11-07 03:54:10,102 INFO L166 IcfgInterpreter]: Building call graph [2019-11-07 03:54:10,103 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-07 03:54:10,103 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-07 03:54:10,103 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-07 03:54:10,127 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 27 for LOIs [2019-11-07 03:54:10,352 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 03:54:10,643 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 10 for LOIs [2019-11-07 03:54:10,645 INFO L180 IcfgInterpreter]: Interpretation finished [2019-11-07 03:54:10,904 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2019-11-07 03:54:11,110 INFO L218 FreeRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-11-07 03:54:11,111 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 11] total 24 [2019-11-07 03:54:11,111 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442282371] [2019-11-07 03:54:11,112 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-11-07 03:54:11,113 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 03:54:11,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-11-07 03:54:11,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=447, Unknown=0, NotChecked=0, Total=552 [2019-11-07 03:54:11,114 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand 24 states. [2019-11-07 03:54:13,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 03:54:13,603 INFO L93 Difference]: Finished difference Result 63 states and 70 transitions. [2019-11-07 03:54:13,603 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2019-11-07 03:54:13,603 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 30 [2019-11-07 03:54:13,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 03:54:13,605 INFO L225 Difference]: With dead ends: 63 [2019-11-07 03:54:13,606 INFO L226 Difference]: Without dead ends: 57 [2019-11-07 03:54:13,607 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 71 SyntacticMatches, 5 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1071 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=691, Invalid=2849, Unknown=0, NotChecked=0, Total=3540 [2019-11-07 03:54:13,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2019-11-07 03:54:13,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 55. [2019-11-07 03:54:13,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2019-11-07 03:54:13,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 56 transitions. [2019-11-07 03:54:13,616 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 56 transitions. Word has length 30 [2019-11-07 03:54:13,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 03:54:13,616 INFO L462 AbstractCegarLoop]: Abstraction has 55 states and 56 transitions. [2019-11-07 03:54:13,616 INFO L463 AbstractCegarLoop]: Interpolant automaton has 24 states. [2019-11-07 03:54:13,616 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 56 transitions. [2019-11-07 03:54:13,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2019-11-07 03:54:13,624 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:54:13,624 INFO L410 BasicCegarLoop]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 03:54:13,830 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 03:54:13,831 INFO L410 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:54:13,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:54:13,831 INFO L82 PathProgramCache]: Analyzing trace with hash -148102622, now seen corresponding path program 3 times [2019-11-07 03:54:13,833 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:54:13,834 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561807837] [2019-11-07 03:54:13,834 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:54:13,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:54:14,384 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 0 proven. 73 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2019-11-07 03:54:14,385 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561807837] [2019-11-07 03:54:14,385 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [90364740] [2019-11-07 03:54:14,385 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 03:54:14,728 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-11-07 03:54:14,729 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-07 03:54:14,732 INFO L256 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 116 conjunts are in the unsatisfiable core [2019-11-07 03:54:14,738 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 03:54:16,011 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2019-11-07 03:54:16,143 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 54 [2019-11-07 03:54:16,293 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 58 [2019-11-07 03:54:16,693 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 60 [2019-11-07 03:54:16,950 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2019-11-07 03:54:17,243 WARN L191 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2019-11-07 03:54:17,555 WARN L191 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 83 [2019-11-07 03:54:17,842 WARN L191 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 72 [2019-11-07 03:54:18,098 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2019-11-07 03:54:18,539 WARN L191 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 76 [2019-11-07 03:54:18,774 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2019-11-07 03:54:19,147 WARN L191 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 96 [2019-11-07 03:54:19,565 WARN L191 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 118 [2019-11-07 03:54:19,895 WARN L191 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 92 [2019-11-07 03:54:20,309 WARN L191 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2019-11-07 03:54:21,265 WARN L191 SmtUtils]: Spent 697.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 95 [2019-11-07 03:54:21,548 WARN L191 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-11-07 03:54:22,050 WARN L191 SmtUtils]: Spent 495.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 116 [2019-11-07 03:54:22,645 WARN L191 SmtUtils]: Spent 586.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 159 [2019-11-07 03:54:23,182 WARN L191 SmtUtils]: Spent 490.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 112 [2019-11-07 03:54:23,767 WARN L191 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2019-11-07 03:54:25,064 WARN L191 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 185 DAG size of output: 114 [2019-11-07 03:54:25,454 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2019-11-07 03:54:26,340 WARN L191 SmtUtils]: Spent 882.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 138 [2019-11-07 03:54:27,216 WARN L191 SmtUtils]: Spent 859.00 ms on a formula simplification. DAG size of input: 236 DAG size of output: 206 [2019-11-07 03:54:28,679 WARN L191 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 371 DAG size of output: 137 [2019-11-07 03:54:29,393 WARN L191 SmtUtils]: Spent 544.00 ms on a formula simplification that was a NOOP. DAG size: 236 [2019-11-07 03:54:31,566 WARN L191 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 233 DAG size of output: 137 [2019-11-07 03:54:32,052 WARN L191 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2019-11-07 03:54:33,236 WARN L191 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 180 DAG size of output: 162 [2019-11-07 03:54:34,650 WARN L191 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 293 DAG size of output: 259 [2019-11-07 03:54:37,319 WARN L191 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 453 DAG size of output: 163 [2019-11-07 03:54:38,470 WARN L191 SmtUtils]: Spent 951.00 ms on a formula simplification that was a NOOP. DAG size: 293 [2019-11-07 03:54:44,357 WARN L191 SmtUtils]: Spent 2.28 s on a formula simplification. DAG size of input: 277 DAG size of output: 160