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-simple/sll2c_remove_all.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 02:30:25,848 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 02:30:25,850 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 02:30:25,869 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 02:30:25,869 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 02:30:25,870 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 02:30:25,872 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 02:30:25,874 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 02:30:25,876 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 02:30:25,877 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 02:30:25,883 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 02:30:25,885 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 02:30:25,886 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 02:30:25,887 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 02:30:25,889 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 02:30:25,890 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 02:30:25,891 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 02:30:25,892 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 02:30:25,893 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 02:30:25,895 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 02:30:25,897 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 02:30:25,898 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 02:30:25,899 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 02:30:25,900 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 02:30:25,903 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-03 02:30:25,903 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-03 02:30:25,903 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-03 02:30:25,904 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-03 02:30:25,905 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-03 02:30:25,906 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-03 02:30:25,906 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 02:30:25,907 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 02:30:25,908 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 02:30:25,908 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 02:30:25,909 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 02:30:25,910 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 02:30:25,910 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 02:30:25,910 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 02:30:25,911 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 02:30:25,912 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 02:30:25,912 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 02:30:25,913 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 02:30:25,930 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 02:30:25,930 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 02:30:25,930 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 02:30:25,931 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 02:30:25,931 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 02:30:25,932 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 02:30:25,932 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 02:30:25,932 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 02:30:25,932 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 02:30:25,932 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 02:30:25,933 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 02:30:25,934 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 02:30:25,934 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 02:30:25,934 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 02:30:25,934 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 02:30:25,934 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 02:30:25,934 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 02:30:25,935 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 02:30:25,935 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 02:30:25,935 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 02:30:25,935 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 02:30:25,936 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 02:30:25,936 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 02:30:25,936 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:30:25,936 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 02:30:25,936 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 02:30:25,937 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 02:30:25,937 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 02:30:25,937 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 02:30:25,937 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 02:30:25,972 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 02:30:25,989 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 02:30:25,992 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 02:30:25,994 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 02:30:25,994 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 02:30:25,995 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/sll2c_remove_all.i [2019-10-03 02:30:26,066 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9fd2938da/70beb2298f454287aa183912efb46180/FLAGc644012fc [2019-10-03 02:30:26,683 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 02:30:26,684 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-simple/sll2c_remove_all.i [2019-10-03 02:30:26,700 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9fd2938da/70beb2298f454287aa183912efb46180/FLAGc644012fc [2019-10-03 02:30:26,940 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9fd2938da/70beb2298f454287aa183912efb46180 [2019-10-03 02:30:26,952 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 02:30:26,954 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 02:30:26,955 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 02:30:26,955 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 02:30:26,960 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 02:30:26,961 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:30:26" (1/1) ... [2019-10-03 02:30:26,965 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e9ca86a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:30:26, skipping insertion in model container [2019-10-03 02:30:26,965 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:30:26" (1/1) ... [2019-10-03 02:30:26,974 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 02:30:27,041 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 02:30:27,567 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:30:27,579 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 02:30:27,630 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:30:27,706 INFO L192 MainTranslator]: Completed translation [2019-10-03 02:30:27,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:30:27 WrapperNode [2019-10-03 02:30:27,707 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 02:30:27,708 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 02:30:27,708 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 02:30:27,708 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 02:30:27,721 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:30:27" (1/1) ... [2019-10-03 02:30:27,722 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:30:27" (1/1) ... [2019-10-03 02:30:27,740 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:30:27" (1/1) ... [2019-10-03 02:30:27,740 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:30:27" (1/1) ... [2019-10-03 02:30:27,758 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:30:27" (1/1) ... [2019-10-03 02:30:27,764 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:30:27" (1/1) ... [2019-10-03 02:30:27,768 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:30:27" (1/1) ... [2019-10-03 02:30:27,775 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 02:30:27,776 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 02:30:27,776 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 02:30:27,776 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 02:30:27,777 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:30:27" (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 02:30:27,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 02:30:27,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 02:30:27,849 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-03 02:30:27,849 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-03 02:30:27,849 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-10-03 02:30:27,850 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2019-10-03 02:30:27,850 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_circular_create [2019-10-03 02:30:27,850 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_circular_remove_first [2019-10-03 02:30:27,851 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 02:30:27,851 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 02:30:27,851 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-03 02:30:27,852 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-03 02:30:27,852 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-03 02:30:27,853 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-03 02:30:27,853 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-03 02:30:27,854 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-03 02:30:27,854 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-03 02:30:27,854 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-03 02:30:27,854 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-03 02:30:27,854 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-03 02:30:27,855 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-03 02:30:27,855 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-03 02:30:27,856 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-03 02:30:27,856 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-03 02:30:27,856 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-03 02:30:27,857 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-03 02:30:27,857 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-03 02:30:27,857 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-03 02:30:27,857 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-03 02:30:27,857 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-03 02:30:27,857 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-03 02:30:27,858 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-03 02:30:27,866 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-03 02:30:27,867 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-03 02:30:27,867 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-03 02:30:27,867 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-03 02:30:27,867 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-03 02:30:27,868 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-03 02:30:27,868 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-03 02:30:27,868 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-03 02:30:27,869 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-03 02:30:27,869 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-03 02:30:27,869 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-03 02:30:27,869 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-03 02:30:27,869 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-03 02:30:27,870 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-03 02:30:27,870 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-03 02:30:27,870 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-03 02:30:27,870 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-03 02:30:27,870 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-03 02:30:27,870 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-03 02:30:27,871 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-03 02:30:27,871 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-03 02:30:27,871 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-03 02:30:27,871 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-03 02:30:27,871 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-03 02:30:27,872 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-03 02:30:27,872 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-03 02:30:27,872 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-03 02:30:27,872 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-03 02:30:27,872 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-03 02:30:27,873 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-03 02:30:27,873 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-03 02:30:27,873 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-03 02:30:27,873 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-03 02:30:27,874 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-03 02:30:27,874 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-03 02:30:27,875 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-03 02:30:27,875 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-03 02:30:27,875 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-03 02:30:27,876 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-03 02:30:27,876 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-03 02:30:27,876 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-03 02:30:27,877 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-03 02:30:27,877 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-03 02:30:27,877 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-03 02:30:27,877 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-03 02:30:27,878 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-03 02:30:27,878 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-03 02:30:27,878 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-03 02:30:27,879 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-03 02:30:27,879 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-03 02:30:27,879 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-03 02:30:27,879 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-03 02:30:27,879 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-03 02:30:27,880 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-03 02:30:27,881 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-03 02:30:27,881 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-03 02:30:27,881 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-03 02:30:27,881 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-03 02:30:27,881 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-03 02:30:27,882 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-03 02:30:27,882 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-03 02:30:27,882 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-03 02:30:27,882 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-03 02:30:27,882 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-03 02:30:27,882 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-03 02:30:27,882 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-03 02:30:27,883 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-03 02:30:27,883 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-03 02:30:27,883 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-03 02:30:27,883 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-03 02:30:27,883 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-03 02:30:27,883 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-03 02:30:27,883 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-03 02:30:27,884 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-03 02:30:27,884 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-03 02:30:27,884 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-03 02:30:27,884 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-03 02:30:27,884 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-03 02:30:27,884 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-03 02:30:27,884 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-03 02:30:27,885 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-03 02:30:27,885 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-03 02:30:27,885 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-03 02:30:27,885 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-10-03 02:30:27,886 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2019-10-03 02:30:27,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-03 02:30:27,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-03 02:30:27,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-03 02:30:27,887 INFO L130 BoogieDeclarations]: Found specification of procedure sll_circular_create [2019-10-03 02:30:27,888 INFO L130 BoogieDeclarations]: Found specification of procedure sll_circular_remove_first [2019-10-03 02:30:27,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-03 02:30:27,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 02:30:27,888 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 02:30:27,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-03 02:30:27,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-03 02:30:27,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 02:30:27,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 02:30:27,889 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-03 02:30:28,327 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-10-03 02:30:28,535 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 02:30:28,535 INFO L283 CfgBuilder]: Removed 3 assume(true) statements. [2019-10-03 02:30:28,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:30:28 BoogieIcfgContainer [2019-10-03 02:30:28,537 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 02:30:28,538 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 02:30:28,538 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 02:30:28,542 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 02:30:28,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 02:30:26" (1/3) ... [2019-10-03 02:30:28,543 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73f5e550 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:30:28, skipping insertion in model container [2019-10-03 02:30:28,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:30:27" (2/3) ... [2019-10-03 02:30:28,544 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73f5e550 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:30:28, skipping insertion in model container [2019-10-03 02:30:28,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:30:28" (3/3) ... [2019-10-03 02:30:28,546 INFO L109 eAbstractionObserver]: Analyzing ICFG sll2c_remove_all.i [2019-10-03 02:30:28,557 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 02:30:28,566 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 02:30:28,585 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 02:30:28,615 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 02:30:28,615 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 02:30:28,615 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 02:30:28,615 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 02:30:28,615 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 02:30:28,616 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 02:30:28,616 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 02:30:28,616 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 02:30:28,631 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2019-10-03 02:30:28,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-10-03 02:30:28,642 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:30:28,643 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:30:28,645 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:30:28,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:30:28,649 INFO L82 PathProgramCache]: Analyzing trace with hash 430323869, now seen corresponding path program 1 times [2019-10-03 02:30:28,651 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:30:28,710 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:30:28,711 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:30:28,711 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:30:28,711 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:30:28,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:30:28,848 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 02:30:28,851 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:30:28,851 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-03 02:30:28,852 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:30:28,858 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:30:28,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:30:28,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:30:28,879 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 2 states. [2019-10-03 02:30:28,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:30:28,905 INFO L93 Difference]: Finished difference Result 43 states and 48 transitions. [2019-10-03 02:30:28,905 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:30:28,907 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2019-10-03 02:30:28,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:30:28,915 INFO L225 Difference]: With dead ends: 43 [2019-10-03 02:30:28,915 INFO L226 Difference]: Without dead ends: 36 [2019-10-03 02:30:28,917 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 02:30:28,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-10-03 02:30:28,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-10-03 02:30:28,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-10-03 02:30:28,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2019-10-03 02:30:28,954 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 24 [2019-10-03 02:30:28,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:30:28,956 INFO L475 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2019-10-03 02:30:28,956 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:30:28,956 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2019-10-03 02:30:28,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-10-03 02:30:28,958 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:30:28,959 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:30:28,959 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:30:28,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:30:28,960 INFO L82 PathProgramCache]: Analyzing trace with hash 430145123, now seen corresponding path program 1 times [2019-10-03 02:30:28,960 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:30:28,965 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:30:28,966 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:30:28,966 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:30:28,966 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:30:29,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:30:29,108 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 02:30:29,108 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:30:29,109 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-03 02:30:29,109 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:30:29,111 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-03 02:30:29,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-03 02:30:29,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:30:29,112 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand 5 states. [2019-10-03 02:30:29,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:30:29,241 INFO L93 Difference]: Finished difference Result 42 states and 47 transitions. [2019-10-03 02:30:29,242 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-03 02:30:29,243 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2019-10-03 02:30:29,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:30:29,245 INFO L225 Difference]: With dead ends: 42 [2019-10-03 02:30:29,245 INFO L226 Difference]: Without dead ends: 39 [2019-10-03 02:30:29,249 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-03 02:30:29,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-10-03 02:30:29,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 37. [2019-10-03 02:30:29,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-10-03 02:30:29,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2019-10-03 02:30:29,265 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 24 [2019-10-03 02:30:29,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:30:29,266 INFO L475 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2019-10-03 02:30:29,266 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-03 02:30:29,266 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2019-10-03 02:30:29,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-10-03 02:30:29,270 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:30:29,271 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:30:29,271 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:30:29,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:30:29,272 INFO L82 PathProgramCache]: Analyzing trace with hash -452541733, now seen corresponding path program 1 times [2019-10-03 02:30:29,272 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:30:29,282 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:30:29,282 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:30:29,283 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:30:29,283 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:30:29,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:30:29,418 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-03 02:30:29,419 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:30:29,419 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-03 02:30:29,419 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:30:29,420 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-03 02:30:29,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-03 02:30:29,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-03 02:30:29,421 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand 4 states. [2019-10-03 02:30:29,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:30:29,460 INFO L93 Difference]: Finished difference Result 40 states and 45 transitions. [2019-10-03 02:30:29,461 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-03 02:30:29,461 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2019-10-03 02:30:29,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:30:29,463 INFO L225 Difference]: With dead ends: 40 [2019-10-03 02:30:29,463 INFO L226 Difference]: Without dead ends: 40 [2019-10-03 02:30:29,464 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-03 02:30:29,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2019-10-03 02:30:29,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 38. [2019-10-03 02:30:29,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2019-10-03 02:30:29,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2019-10-03 02:30:29,476 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 32 [2019-10-03 02:30:29,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:30:29,478 INFO L475 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2019-10-03 02:30:29,478 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-03 02:30:29,478 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2019-10-03 02:30:29,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-10-03 02:30:29,482 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:30:29,486 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:30:29,486 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:30:29,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:30:29,487 INFO L82 PathProgramCache]: Analyzing trace with hash -1201021362, now seen corresponding path program 1 times [2019-10-03 02:30:29,487 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:30:29,499 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:30:29,499 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:30:29,499 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:30:29,500 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:30:29,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:30:29,669 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-03 02:30:29,670 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:30:29,670 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-03 02:30:29,670 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:30:29,671 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-03 02:30:29,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-03 02:30:29,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-03 02:30:29,672 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand 6 states. [2019-10-03 02:30:29,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:30:29,840 INFO L93 Difference]: Finished difference Result 50 states and 58 transitions. [2019-10-03 02:30:29,841 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 02:30:29,841 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 39 [2019-10-03 02:30:29,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:30:29,844 INFO L225 Difference]: With dead ends: 50 [2019-10-03 02:30:29,844 INFO L226 Difference]: Without dead ends: 48 [2019-10-03 02:30:29,845 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-10-03 02:30:29,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2019-10-03 02:30:29,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 41. [2019-10-03 02:30:29,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-10-03 02:30:29,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2019-10-03 02:30:29,852 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 39 [2019-10-03 02:30:29,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:30:29,853 INFO L475 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2019-10-03 02:30:29,853 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-03 02:30:29,853 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2019-10-03 02:30:29,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-10-03 02:30:29,855 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:30:29,855 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:30:29,855 INFO L418 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:30:29,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:30:29,856 INFO L82 PathProgramCache]: Analyzing trace with hash 1388528326, now seen corresponding path program 1 times [2019-10-03 02:30:29,856 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:30:29,861 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:30:29,862 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:30:29,862 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:30:29,862 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:30:29,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:30:30,130 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 31 [2019-10-03 02:30:30,261 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-03 02:30:30,261 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:30:30,261 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-03 02:30:30,262 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:30:30,262 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-03 02:30:30,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-03 02:30:30,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:30:30,263 INFO L87 Difference]: Start difference. First operand 41 states and 45 transitions. Second operand 5 states. [2019-10-03 02:30:30,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:30:30,418 INFO L93 Difference]: Finished difference Result 43 states and 47 transitions. [2019-10-03 02:30:30,418 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-03 02:30:30,418 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 42 [2019-10-03 02:30:30,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:30:30,419 INFO L225 Difference]: With dead ends: 43 [2019-10-03 02:30:30,420 INFO L226 Difference]: Without dead ends: 43 [2019-10-03 02:30:30,420 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-03 02:30:30,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2019-10-03 02:30:30,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2019-10-03 02:30:30,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-10-03 02:30:30,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 47 transitions. [2019-10-03 02:30:30,426 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 47 transitions. Word has length 42 [2019-10-03 02:30:30,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:30:30,427 INFO L475 AbstractCegarLoop]: Abstraction has 43 states and 47 transitions. [2019-10-03 02:30:30,427 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-03 02:30:30,427 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 47 transitions. [2019-10-03 02:30:30,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2019-10-03 02:30:30,429 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:30:30,429 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:30:30,429 INFO L418 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:30:30,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:30:30,430 INFO L82 PathProgramCache]: Analyzing trace with hash -89881461, now seen corresponding path program 1 times [2019-10-03 02:30:30,430 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:30:30,434 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:30:30,434 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:30:30,434 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:30:30,435 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:30:30,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:30:30,515 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-10-03 02:30:30,515 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-03 02:30:30,515 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-10-03 02:30:30,517 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 45 with the following transitions: [2019-10-03 02:30:30,519 INFO L207 CegarAbsIntRunner]: [7], [13], [15], [16], [17], [18], [19], [21], [28], [30], [32], [36], [39], [42], [47], [49], [56], [58], [60], [64], [65], [66], [71], [76], [79], [81], [85], [87], [93], [94], [95], [96], [97], [98], [99], [100], [101], [102], [103] [2019-10-03 02:30:30,578 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-03 02:30:30,579 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-03 02:30:30,644 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-03 02:30:30,645 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Performed 21 root evaluator evaluations with a maximum evaluation depth of 0. Performed 21 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 26 variables. [2019-10-03 02:30:30,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:30:30,648 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-03 02:30:30,687 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-10-03 02:30:30,687 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-10-03 02:30:30,690 INFO L420 sIntCurrentIteration]: We unified 43 AI predicates to 43 [2019-10-03 02:30:30,690 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-03 02:30:30,691 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-03 02:30:30,691 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 5 [2019-10-03 02:30:30,692 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:30:30,692 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:30:30,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:30:30,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:30:30,693 INFO L87 Difference]: Start difference. First operand 43 states and 47 transitions. Second operand 2 states. [2019-10-03 02:30:30,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:30:30,694 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2019-10-03 02:30:30,694 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:30:30,695 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 44 [2019-10-03 02:30:30,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:30:30,695 INFO L225 Difference]: With dead ends: 6 [2019-10-03 02:30:30,695 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 02:30:30,696 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 43 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 02:30:30,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 02:30:30,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 02:30:30,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 02:30:30,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 02:30:30,697 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 44 [2019-10-03 02:30:30,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:30:30,697 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 02:30:30,697 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:30:30,697 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 02:30:30,698 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 02:30:30,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 02:30:30 BoogieIcfgContainer [2019-10-03 02:30:30,704 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 02:30:30,706 INFO L168 Benchmark]: Toolchain (without parser) took 3751.57 ms. Allocated memory was 133.7 MB in the beginning and 226.0 MB in the end (delta: 92.3 MB). Free memory was 87.5 MB in the beginning and 68.5 MB in the end (delta: 18.9 MB). Peak memory consumption was 111.2 MB. Max. memory is 7.1 GB. [2019-10-03 02:30:30,707 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 133.7 MB. Free memory was 106.7 MB in the beginning and 106.5 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-10-03 02:30:30,708 INFO L168 Benchmark]: CACSL2BoogieTranslator took 752.22 ms. Allocated memory was 133.7 MB in the beginning and 200.3 MB in the end (delta: 66.6 MB). Free memory was 87.3 MB in the beginning and 162.1 MB in the end (delta: -74.9 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB. [2019-10-03 02:30:30,709 INFO L168 Benchmark]: Boogie Preprocessor took 67.35 ms. Allocated memory is still 200.3 MB. Free memory was 162.1 MB in the beginning and 159.7 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2019-10-03 02:30:30,710 INFO L168 Benchmark]: RCFGBuilder took 761.39 ms. Allocated memory is still 200.3 MB. Free memory was 159.1 MB in the beginning and 112.7 MB in the end (delta: 46.4 MB). Peak memory consumption was 46.4 MB. Max. memory is 7.1 GB. [2019-10-03 02:30:30,712 INFO L168 Benchmark]: TraceAbstraction took 2165.63 ms. Allocated memory was 200.3 MB in the beginning and 226.0 MB in the end (delta: 25.7 MB). Free memory was 112.1 MB in the beginning and 68.5 MB in the end (delta: 43.6 MB). Peak memory consumption was 69.3 MB. Max. memory is 7.1 GB. [2019-10-03 02:30:30,716 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 133.7 MB. Free memory was 106.7 MB in the beginning and 106.5 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 752.22 ms. Allocated memory was 133.7 MB in the beginning and 200.3 MB in the end (delta: 66.6 MB). Free memory was 87.3 MB in the beginning and 162.1 MB in the end (delta: -74.9 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 67.35 ms. Allocated memory is still 200.3 MB. Free memory was 162.1 MB in the beginning and 159.7 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 761.39 ms. Allocated memory is still 200.3 MB. Free memory was 159.1 MB in the beginning and 112.7 MB in the end (delta: 46.4 MB). Peak memory consumption was 46.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2165.63 ms. Allocated memory was 200.3 MB in the beginning and 226.0 MB in the end (delta: 25.7 MB). Free memory was 112.1 MB in the beginning and 68.5 MB in the end (delta: 43.6 MB). Peak memory consumption was 69.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 612]: 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, 50 locations, 1 error locations. SAFE Result, 2.0s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 200 SDtfs, 36 SDslu, 333 SDs, 0 SdLazy, 134 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 53 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9767441860465116 AbsIntWeakeningRatio, 1.697674418604651 AbsIntAvgWeakeningVarsNumRemoved, 0.13953488372093023 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 11 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 205 NumberOfCodeBlocks, 205 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 199 ConstructedInterpolants, 0 QuantifiedInterpolants, 20715 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 28/29 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...