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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/list-properties/list_flag-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 02:29:10,762 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 02:29:10,765 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 02:29:10,782 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 02:29:10,783 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 02:29:10,784 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 02:29:10,786 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 02:29:10,788 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 02:29:10,791 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 02:29:10,799 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 02:29:10,800 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 02:29:10,802 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 02:29:10,803 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 02:29:10,804 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 02:29:10,807 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 02:29:10,808 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 02:29:10,810 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 02:29:10,815 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 02:29:10,819 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 02:29:10,821 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 02:29:10,826 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 02:29:10,828 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 02:29:10,831 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 02:29:10,833 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 02:29:10,838 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-03 02:29:10,839 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-03 02:29:10,839 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-03 02:29:10,842 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-03 02:29:10,844 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-03 02:29:10,848 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-03 02:29:10,848 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 02:29:10,850 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 02:29:10,852 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 02:29:10,853 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 02:29:10,859 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 02:29:10,859 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 02:29:10,860 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 02:29:10,860 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 02:29:10,861 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 02:29:10,862 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 02:29:10,866 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 02:29:10,868 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-10-03 02:29:10,885 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 02:29:10,886 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 02:29:10,886 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 02:29:10,887 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 02:29:10,887 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 02:29:10,888 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 02:29:10,888 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 02:29:10,888 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 02:29:10,888 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 02:29:10,888 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 02:29:10,889 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 02:29:10,890 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 02:29:10,890 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 02:29:10,890 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 02:29:10,890 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 02:29:10,891 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 02:29:10,891 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 02:29:10,891 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 02:29:10,891 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 02:29:10,892 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 02:29:10,892 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 02:29:10,892 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 02:29:10,892 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 02:29:10,892 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:29:10,893 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 02:29:10,893 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 02:29:10,893 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 02:29:10,893 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 02:29:10,894 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 02:29:10,894 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 02:29:10,944 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 02:29:10,970 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 02:29:10,979 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 02:29:10,981 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 02:29:10,982 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 02:29:10,984 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-properties/list_flag-2.i [2019-10-03 02:29:11,081 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb15fc6ad/950a7a0fcb2243dbb9764d8970b04bd8/FLAGab6ee1c33 [2019-10-03 02:29:11,742 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 02:29:11,743 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-properties/list_flag-2.i [2019-10-03 02:29:11,762 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb15fc6ad/950a7a0fcb2243dbb9764d8970b04bd8/FLAGab6ee1c33 [2019-10-03 02:29:12,002 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb15fc6ad/950a7a0fcb2243dbb9764d8970b04bd8 [2019-10-03 02:29:12,015 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 02:29:12,017 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 02:29:12,018 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 02:29:12,018 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 02:29:12,023 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 02:29:12,024 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:29:12" (1/1) ... [2019-10-03 02:29:12,028 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2089993a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:29:12, skipping insertion in model container [2019-10-03 02:29:12,028 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:29:12" (1/1) ... [2019-10-03 02:29:12,038 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 02:29:12,086 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 02:29:12,624 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:29:12,642 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 02:29:12,702 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:29:12,763 INFO L192 MainTranslator]: Completed translation [2019-10-03 02:29:12,763 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:29:12 WrapperNode [2019-10-03 02:29:12,764 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 02:29:12,765 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 02:29:12,765 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 02:29:12,765 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 02:29:12,782 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:29:12" (1/1) ... [2019-10-03 02:29:12,782 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:29:12" (1/1) ... [2019-10-03 02:29:12,802 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:29:12" (1/1) ... [2019-10-03 02:29:12,802 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:29:12" (1/1) ... [2019-10-03 02:29:12,819 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:29:12" (1/1) ... [2019-10-03 02:29:12,825 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:29:12" (1/1) ... [2019-10-03 02:29:12,829 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:29:12" (1/1) ... [2019-10-03 02:29:12,836 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 02:29:12,837 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 02:29:12,837 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 02:29:12,837 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 02:29:12,841 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:29:12" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:29:12,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 02:29:12,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 02:29:12,911 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-03 02:29:12,911 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-03 02:29:12,911 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-10-03 02:29:12,911 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-10-03 02:29:12,911 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-10-03 02:29:12,912 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-10-03 02:29:12,912 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 02:29:12,912 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 02:29:12,912 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 02:29:12,912 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-03 02:29:12,913 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-03 02:29:12,913 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-03 02:29:12,913 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-03 02:29:12,913 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-03 02:29:12,914 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-03 02:29:12,914 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-03 02:29:12,914 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-03 02:29:12,914 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-03 02:29:12,915 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-03 02:29:12,915 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-03 02:29:12,915 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-03 02:29:12,915 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-03 02:29:12,915 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-03 02:29:12,915 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-03 02:29:12,915 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-03 02:29:12,916 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-03 02:29:12,916 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-03 02:29:12,916 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-10-03 02:29:12,916 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-10-03 02:29:12,916 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-10-03 02:29:12,916 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-03 02:29:12,917 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-03 02:29:12,917 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-03 02:29:12,917 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-03 02:29:12,917 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-03 02:29:12,917 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-03 02:29:12,917 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-03 02:29:12,918 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-03 02:29:12,918 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-03 02:29:12,918 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-03 02:29:12,918 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-03 02:29:12,918 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-03 02:29:12,919 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-03 02:29:12,919 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-03 02:29:12,920 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-03 02:29:12,920 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-03 02:29:12,920 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-03 02:29:12,920 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-03 02:29:12,920 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-03 02:29:12,921 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-03 02:29:12,921 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-03 02:29:12,921 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-03 02:29:12,921 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-03 02:29:12,921 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-03 02:29:12,921 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-03 02:29:12,921 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-03 02:29:12,922 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-03 02:29:12,922 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-03 02:29:12,922 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-03 02:29:12,922 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-03 02:29:12,922 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-03 02:29:12,922 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-03 02:29:12,923 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-03 02:29:12,923 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-03 02:29:12,923 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-03 02:29:12,923 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-03 02:29:12,923 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-03 02:29:12,923 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-03 02:29:12,924 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-03 02:29:12,924 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-03 02:29:12,924 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-03 02:29:12,924 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-03 02:29:12,924 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-03 02:29:12,924 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-03 02:29:12,925 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-03 02:29:12,925 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-03 02:29:12,925 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-03 02:29:12,925 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-03 02:29:12,925 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-03 02:29:12,925 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-03 02:29:12,926 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-03 02:29:12,926 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-03 02:29:12,926 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-03 02:29:12,926 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-03 02:29:12,926 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-03 02:29:12,926 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-03 02:29:12,927 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-03 02:29:12,927 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-03 02:29:12,927 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-03 02:29:12,927 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-03 02:29:12,927 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-03 02:29:12,927 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-03 02:29:12,927 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-03 02:29:12,928 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-03 02:29:12,928 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-03 02:29:12,928 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-03 02:29:12,928 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-03 02:29:12,928 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-03 02:29:12,928 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-03 02:29:12,929 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-03 02:29:12,929 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-03 02:29:12,929 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-03 02:29:12,929 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-03 02:29:12,929 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-03 02:29:12,929 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-03 02:29:12,929 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-03 02:29:12,930 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-03 02:29:12,930 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-03 02:29:12,930 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-03 02:29:12,930 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-03 02:29:12,930 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-03 02:29:12,930 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-03 02:29:12,930 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-03 02:29:12,931 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-03 02:29:12,931 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-03 02:29:12,931 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-03 02:29:12,931 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-10-03 02:29:12,931 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 02:29:12,931 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-03 02:29:12,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-03 02:29:12,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-03 02:29:12,932 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-03 02:29:12,932 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-03 02:29:12,932 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 02:29:12,932 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 02:29:12,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 02:29:13,310 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-10-03 02:29:13,543 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 02:29:13,543 INFO L283 CfgBuilder]: Removed 3 assume(true) statements. [2019-10-03 02:29:13,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:29:13 BoogieIcfgContainer [2019-10-03 02:29:13,546 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 02:29:13,547 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 02:29:13,547 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 02:29:13,551 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 02:29:13,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 02:29:12" (1/3) ... [2019-10-03 02:29:13,553 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70f6869f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:29:13, skipping insertion in model container [2019-10-03 02:29:13,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:29:12" (2/3) ... [2019-10-03 02:29:13,554 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70f6869f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:29:13, skipping insertion in model container [2019-10-03 02:29:13,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:29:13" (3/3) ... [2019-10-03 02:29:13,556 INFO L109 eAbstractionObserver]: Analyzing ICFG list_flag-2.i [2019-10-03 02:29:13,569 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 02:29:13,577 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 02:29:13,595 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 02:29:13,621 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 02:29:13,621 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 02:29:13,621 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 02:29:13,621 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 02:29:13,622 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 02:29:13,622 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 02:29:13,622 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 02:29:13,622 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 02:29:13,636 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2019-10-03 02:29:13,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-03 02:29:13,649 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:29:13,650 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:29:13,652 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:29:13,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:29:13,658 INFO L82 PathProgramCache]: Analyzing trace with hash 1184417696, now seen corresponding path program 1 times [2019-10-03 02:29:13,661 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:29:13,742 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:29:13,742 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:29:13,743 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:29:13,743 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:29:13,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:29:13,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:29:13,858 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:29:13,859 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-03 02:29:13,859 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:29:13,866 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:29:13,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:29:13,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:29:13,889 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 2 states. [2019-10-03 02:29:13,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:29:13,915 INFO L93 Difference]: Finished difference Result 32 states and 38 transitions. [2019-10-03 02:29:13,915 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:29:13,917 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2019-10-03 02:29:13,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:29:13,925 INFO L225 Difference]: With dead ends: 32 [2019-10-03 02:29:13,925 INFO L226 Difference]: Without dead ends: 24 [2019-10-03 02:29:13,927 INFO L640 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 [2019-10-03 02:29:13,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-10-03 02:29:13,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-10-03 02:29:13,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-10-03 02:29:13,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2019-10-03 02:29:13,974 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 15 [2019-10-03 02:29:13,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:29:13,975 INFO L475 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2019-10-03 02:29:13,975 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:29:13,975 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2019-10-03 02:29:13,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-03 02:29:13,976 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:29:13,977 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:29:13,977 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:29:13,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:29:13,978 INFO L82 PathProgramCache]: Analyzing trace with hash -218242506, now seen corresponding path program 1 times [2019-10-03 02:29:13,978 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:29:13,983 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:29:13,984 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:29:13,984 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:29:13,984 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:29:14,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:29:14,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:29:14,130 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:29:14,130 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-03 02:29:14,130 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:29:14,132 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-03 02:29:14,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-03 02:29:14,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:29:14,134 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand 5 states. [2019-10-03 02:29:14,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:29:14,386 INFO L93 Difference]: Finished difference Result 46 states and 55 transitions. [2019-10-03 02:29:14,387 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-03 02:29:14,388 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-10-03 02:29:14,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:29:14,389 INFO L225 Difference]: With dead ends: 46 [2019-10-03 02:29:14,390 INFO L226 Difference]: Without dead ends: 44 [2019-10-03 02:29:14,391 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:29:14,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2019-10-03 02:29:14,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 32. [2019-10-03 02:29:14,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-10-03 02:29:14,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 38 transitions. [2019-10-03 02:29:14,409 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 38 transitions. Word has length 17 [2019-10-03 02:29:14,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:29:14,410 INFO L475 AbstractCegarLoop]: Abstraction has 32 states and 38 transitions. [2019-10-03 02:29:14,410 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-03 02:29:14,410 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2019-10-03 02:29:14,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-03 02:29:14,412 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:29:14,412 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:29:14,413 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:29:14,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:29:14,413 INFO L82 PathProgramCache]: Analyzing trace with hash 771025649, now seen corresponding path program 1 times [2019-10-03 02:29:14,414 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:29:14,425 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:29:14,426 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:29:14,426 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:29:14,426 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:29:14,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:29:14,580 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:29:14,580 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:29:14,580 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-03 02:29:14,581 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:29:14,581 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-03 02:29:14,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-03 02:29:14,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:29:14,582 INFO L87 Difference]: Start difference. First operand 32 states and 38 transitions. Second operand 5 states. [2019-10-03 02:29:14,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:29:14,735 INFO L93 Difference]: Finished difference Result 44 states and 51 transitions. [2019-10-03 02:29:14,735 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-03 02:29:14,736 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2019-10-03 02:29:14,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:29:14,737 INFO L225 Difference]: With dead ends: 44 [2019-10-03 02:29:14,737 INFO L226 Difference]: Without dead ends: 42 [2019-10-03 02:29:14,738 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:29:14,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2019-10-03 02:29:14,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 30. [2019-10-03 02:29:14,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-10-03 02:29:14,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 35 transitions. [2019-10-03 02:29:14,743 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 35 transitions. Word has length 19 [2019-10-03 02:29:14,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:29:14,744 INFO L475 AbstractCegarLoop]: Abstraction has 30 states and 35 transitions. [2019-10-03 02:29:14,744 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-03 02:29:14,744 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 35 transitions. [2019-10-03 02:29:14,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-03 02:29:14,745 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:29:14,745 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:29:14,746 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:29:14,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:29:14,746 INFO L82 PathProgramCache]: Analyzing trace with hash -472715872, now seen corresponding path program 1 times [2019-10-03 02:29:14,746 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:29:14,750 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:29:14,751 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:29:14,751 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:29:14,751 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:29:14,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:29:14,832 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:29:14,832 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:29:14,833 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-03 02:29:14,833 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:29:14,833 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-03 02:29:14,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-03 02:29:14,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:29:14,834 INFO L87 Difference]: Start difference. First operand 30 states and 35 transitions. Second operand 5 states. [2019-10-03 02:29:14,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:29:14,964 INFO L93 Difference]: Finished difference Result 42 states and 48 transitions. [2019-10-03 02:29:14,965 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-03 02:29:14,965 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2019-10-03 02:29:14,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:29:14,966 INFO L225 Difference]: With dead ends: 42 [2019-10-03 02:29:14,967 INFO L226 Difference]: Without dead ends: 38 [2019-10-03 02:29:14,967 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:29:14,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2019-10-03 02:29:14,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 26. [2019-10-03 02:29:14,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-10-03 02:29:14,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2019-10-03 02:29:14,972 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 19 [2019-10-03 02:29:14,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:29:14,972 INFO L475 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2019-10-03 02:29:14,972 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-03 02:29:14,972 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2019-10-03 02:29:14,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-10-03 02:29:14,973 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:29:14,974 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:29:14,974 INFO L418 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:29:14,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:29:14,974 INFO L82 PathProgramCache]: Analyzing trace with hash -1962636917, now seen corresponding path program 1 times [2019-10-03 02:29:14,975 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:29:14,979 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:29:14,979 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:29:14,980 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:29:14,980 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:29:14,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:29:15,031 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:29:15,032 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:29:15,032 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:29:15,032 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:29:15,032 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:29:15,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:29:15,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:29:15,033 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand 3 states. [2019-10-03 02:29:15,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:29:15,057 INFO L93 Difference]: Finished difference Result 38 states and 42 transitions. [2019-10-03 02:29:15,058 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:29:15,058 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2019-10-03 02:29:15,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:29:15,059 INFO L225 Difference]: With dead ends: 38 [2019-10-03 02:29:15,059 INFO L226 Difference]: Without dead ends: 38 [2019-10-03 02:29:15,060 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:29:15,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2019-10-03 02:29:15,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 34. [2019-10-03 02:29:15,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-10-03 02:29:15,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 39 transitions. [2019-10-03 02:29:15,065 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 39 transitions. Word has length 23 [2019-10-03 02:29:15,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:29:15,066 INFO L475 AbstractCegarLoop]: Abstraction has 34 states and 39 transitions. [2019-10-03 02:29:15,066 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:29:15,066 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 39 transitions. [2019-10-03 02:29:15,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-10-03 02:29:15,067 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:29:15,067 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:29:15,068 INFO L418 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:29:15,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:29:15,068 INFO L82 PathProgramCache]: Analyzing trace with hash 1888593434, now seen corresponding path program 1 times [2019-10-03 02:29:15,068 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:29:15,072 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:29:15,072 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:29:15,073 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:29:15,073 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:29:15,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:29:15,286 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:29:15,287 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-03 02:29:15,287 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-10-03 02:29:15,289 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 24 with the following transitions: [2019-10-03 02:29:15,291 INFO L207 CegarAbsIntRunner]: [11], [12], [13], [19], [21], [26], [29], [31], [34], [38], [44], [46], [50], [53], [58], [61], [82], [85], [87], [104], [105], [106] [2019-10-03 02:29:15,352 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-03 02:29:15,352 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-03 02:29:15,493 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-03 02:29:15,496 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Performed 21 root evaluator evaluations with a maximum evaluation depth of 2. Performed 21 inverse root evaluator evaluations with a maximum inverse evaluation depth of 2. Never found a fixpoint. Largest state had 33 variables. [2019-10-03 02:29:15,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:29:15,501 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-03 02:29:15,541 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-10-03 02:29:15,541 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-10-03 02:29:15,543 INFO L420 sIntCurrentIteration]: We unified 22 AI predicates to 22 [2019-10-03 02:29:15,543 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-03 02:29:15,544 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-03 02:29:15,545 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2019-10-03 02:29:15,545 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:29:15,545 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:29:15,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:29:15,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:29:15,546 INFO L87 Difference]: Start difference. First operand 34 states and 39 transitions. Second operand 2 states. [2019-10-03 02:29:15,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:29:15,547 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2019-10-03 02:29:15,548 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:29:15,548 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2019-10-03 02:29:15,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:29:15,548 INFO L225 Difference]: With dead ends: 6 [2019-10-03 02:29:15,548 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 02:29:15,549 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:29:15,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 02:29:15,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 02:29:15,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 02:29:15,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 02:29:15,550 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2019-10-03 02:29:15,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:29:15,550 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 02:29:15,550 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:29:15,550 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 02:29:15,551 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 02:29:15,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 02:29:15 BoogieIcfgContainer [2019-10-03 02:29:15,557 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 02:29:15,560 INFO L168 Benchmark]: Toolchain (without parser) took 3542.51 ms. Allocated memory was 129.5 MB in the beginning and 215.0 MB in the end (delta: 85.5 MB). Free memory was 82.8 MB in the beginning and 120.1 MB in the end (delta: -37.3 MB). Peak memory consumption was 48.2 MB. Max. memory is 7.1 GB. [2019-10-03 02:29:15,562 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 129.5 MB. Free memory was 102.4 MB in the beginning and 102.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-03 02:29:15,563 INFO L168 Benchmark]: CACSL2BoogieTranslator took 746.45 ms. Allocated memory was 129.5 MB in the beginning and 197.7 MB in the end (delta: 68.2 MB). Free memory was 82.6 MB in the beginning and 161.8 MB in the end (delta: -79.2 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. [2019-10-03 02:29:15,564 INFO L168 Benchmark]: Boogie Preprocessor took 71.92 ms. Allocated memory is still 197.7 MB. Free memory was 161.2 MB in the beginning and 158.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2019-10-03 02:29:15,565 INFO L168 Benchmark]: RCFGBuilder took 708.71 ms. Allocated memory is still 197.7 MB. Free memory was 158.6 MB in the beginning and 115.6 MB in the end (delta: 43.0 MB). Peak memory consumption was 43.0 MB. Max. memory is 7.1 GB. [2019-10-03 02:29:15,566 INFO L168 Benchmark]: TraceAbstraction took 2010.06 ms. Allocated memory was 197.7 MB in the beginning and 215.0 MB in the end (delta: 17.3 MB). Free memory was 114.9 MB in the beginning and 120.1 MB in the end (delta: -5.2 MB). Peak memory consumption was 12.1 MB. Max. memory is 7.1 GB. [2019-10-03 02:29:15,571 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 129.5 MB. Free memory was 102.4 MB in the beginning and 102.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 746.45 ms. Allocated memory was 129.5 MB in the beginning and 197.7 MB in the end (delta: 68.2 MB). Free memory was 82.6 MB in the beginning and 161.8 MB in the end (delta: -79.2 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 71.92 ms. Allocated memory is still 197.7 MB. Free memory was 161.2 MB in the beginning and 158.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 708.71 ms. Allocated memory is still 197.7 MB. Free memory was 158.6 MB in the beginning and 115.6 MB in the end (delta: 43.0 MB). Peak memory consumption was 43.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2010.06 ms. Allocated memory was 197.7 MB in the beginning and 215.0 MB in the end (delta: 17.3 MB). Free memory was 114.9 MB in the beginning and 120.1 MB in the end (delta: -5.2 MB). Peak memory consumption was 12.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 546]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 48 locations, 1 error locations. SAFE Result, 1.9s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 135 SDtfs, 71 SDslu, 179 SDs, 0 SdLazy, 132 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.2s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.8977272727272727 AbsIntWeakeningRatio, 0.9545454545454546 AbsIntAvgWeakeningVarsNumRemoved, 0.2727272727272727 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 40 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 116 NumberOfCodeBlocks, 116 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 110 ConstructedInterpolants, 0 QuantifiedInterpolants, 7664 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 6/8 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...