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/sll2n_update_all_reverse.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 02:30:45,940 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 02:30:45,942 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 02:30:45,954 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 02:30:45,955 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 02:30:45,956 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 02:30:45,957 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 02:30:45,959 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 02:30:45,961 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 02:30:45,962 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 02:30:45,963 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 02:30:45,964 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 02:30:45,964 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 02:30:45,966 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 02:30:45,966 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 02:30:45,968 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 02:30:45,969 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 02:30:45,970 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 02:30:45,972 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 02:30:45,974 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 02:30:45,976 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 02:30:45,977 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 02:30:45,979 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 02:30:45,979 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 02:30:45,984 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-03 02:30:45,986 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-03 02:30:45,987 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-03 02:30:45,988 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-03 02:30:45,988 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-03 02:30:45,989 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-03 02:30:45,990 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 02:30:45,990 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 02:30:45,991 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 02:30:45,992 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 02:30:45,993 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 02:30:45,994 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 02:30:45,994 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 02:30:45,994 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 02:30:45,995 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 02:30:45,996 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 02:30:45,997 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 02:30:45,997 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 02:30:46,014 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 02:30:46,014 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 02:30:46,015 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 02:30:46,015 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 02:30:46,016 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 02:30:46,016 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 02:30:46,016 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 02:30:46,016 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 02:30:46,017 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 02:30:46,017 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 02:30:46,018 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 02:30:46,018 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 02:30:46,018 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 02:30:46,018 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 02:30:46,018 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 02:30:46,019 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 02:30:46,019 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 02:30:46,019 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 02:30:46,019 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 02:30:46,019 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 02:30:46,020 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 02:30:46,020 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 02:30:46,020 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 02:30:46,020 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:30:46,020 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 02:30:46,021 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 02:30:46,021 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 02:30:46,021 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 02:30:46,021 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 02:30:46,021 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 02:30:46,052 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 02:30:46,063 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 02:30:46,067 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 02:30:46,069 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 02:30:46,069 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 02:30:46,070 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/sll2n_update_all_reverse.i [2019-10-03 02:30:46,146 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b97c2522/46a903b2371844bbbd9e6fe8ac7d5497/FLAG691572eb0 [2019-10-03 02:30:46,720 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 02:30:46,721 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-simple/sll2n_update_all_reverse.i [2019-10-03 02:30:46,736 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b97c2522/46a903b2371844bbbd9e6fe8ac7d5497/FLAG691572eb0 [2019-10-03 02:30:46,968 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b97c2522/46a903b2371844bbbd9e6fe8ac7d5497 [2019-10-03 02:30:46,978 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 02:30:46,980 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 02:30:46,981 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 02:30:46,981 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 02:30:46,985 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 02:30:46,986 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:30:46" (1/1) ... [2019-10-03 02:30:46,989 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5336899d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:30:46, skipping insertion in model container [2019-10-03 02:30:46,990 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:30:46" (1/1) ... [2019-10-03 02:30:46,998 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 02:30:47,051 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 02:30:47,588 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:30:47,602 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 02:30:47,665 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:30:47,732 INFO L192 MainTranslator]: Completed translation [2019-10-03 02:30:47,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:30:47 WrapperNode [2019-10-03 02:30:47,733 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 02:30:47,733 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 02:30:47,734 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 02:30:47,734 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 02:30:47,748 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:30:47" (1/1) ... [2019-10-03 02:30:47,750 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:30:47" (1/1) ... [2019-10-03 02:30:47,776 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:30:47" (1/1) ... [2019-10-03 02:30:47,777 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:30:47" (1/1) ... [2019-10-03 02:30:47,804 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:30:47" (1/1) ... [2019-10-03 02:30:47,819 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:30:47" (1/1) ... [2019-10-03 02:30:47,824 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:30:47" (1/1) ... [2019-10-03 02:30:47,841 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 02:30:47,841 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 02:30:47,842 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 02:30:47,842 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 02:30:47,844 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:30:47" (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 02:30:47,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 02:30:47,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 02:30:47,903 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-03 02:30:47,903 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-03 02:30:47,903 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-10-03 02:30:47,903 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2019-10-03 02:30:47,904 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_create [2019-10-03 02:30:47,904 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_destroy [2019-10-03 02:30:47,904 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_get_data_at [2019-10-03 02:30:47,904 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_update_at [2019-10-03 02:30:47,905 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 02:30:47,905 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 02:30:47,905 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-03 02:30:47,905 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-03 02:30:47,906 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-03 02:30:47,906 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-03 02:30:47,906 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-03 02:30:47,907 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-03 02:30:47,907 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-03 02:30:47,907 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-03 02:30:47,908 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-03 02:30:47,908 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-03 02:30:47,908 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-03 02:30:47,908 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-03 02:30:47,909 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-03 02:30:47,909 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-03 02:30:47,910 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-03 02:30:47,910 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-03 02:30:47,910 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-03 02:30:47,910 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-03 02:30:47,910 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-03 02:30:47,910 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-03 02:30:47,911 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-03 02:30:47,911 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-03 02:30:47,911 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-03 02:30:47,911 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-03 02:30:47,911 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-03 02:30:47,912 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-03 02:30:47,912 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-03 02:30:47,912 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-03 02:30:47,913 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-03 02:30:47,913 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-03 02:30:47,913 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-03 02:30:47,913 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-03 02:30:47,913 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-03 02:30:47,913 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-03 02:30:47,914 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-03 02:30:47,914 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-03 02:30:47,914 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-03 02:30:47,914 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-03 02:30:47,914 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-03 02:30:47,914 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-03 02:30:47,914 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-03 02:30:47,915 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-03 02:30:47,915 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-03 02:30:47,915 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-03 02:30:47,915 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-03 02:30:47,915 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-03 02:30:47,915 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-03 02:30:47,916 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-03 02:30:47,916 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-03 02:30:47,916 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-03 02:30:47,916 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-03 02:30:47,916 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-03 02:30:47,916 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-03 02:30:47,917 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-03 02:30:47,917 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-03 02:30:47,918 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-03 02:30:47,918 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-03 02:30:47,918 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-03 02:30:47,918 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-03 02:30:47,919 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-03 02:30:47,919 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-03 02:30:47,920 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-03 02:30:47,920 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-03 02:30:47,920 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-03 02:30:47,921 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-03 02:30:47,921 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-03 02:30:47,922 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-03 02:30:47,923 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-03 02:30:47,923 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-03 02:30:47,923 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-03 02:30:47,923 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-03 02:30:47,923 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-03 02:30:47,923 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-03 02:30:47,924 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-03 02:30:47,925 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-03 02:30:47,925 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-03 02:30:47,926 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-03 02:30:47,926 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-03 02:30:47,926 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-03 02:30:47,926 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-03 02:30:47,926 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-03 02:30:47,926 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-03 02:30:47,926 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-03 02:30:47,927 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-03 02:30:47,927 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-03 02:30:47,927 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-03 02:30:47,927 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-03 02:30:47,927 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-03 02:30:47,927 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-03 02:30:47,928 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-03 02:30:47,928 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-03 02:30:47,928 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-03 02:30:47,928 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-03 02:30:47,928 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-03 02:30:47,928 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-03 02:30:47,928 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-03 02:30:47,929 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-03 02:30:47,929 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-03 02:30:47,929 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-03 02:30:47,929 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-03 02:30:47,929 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-03 02:30:47,929 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-03 02:30:47,930 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-03 02:30:47,930 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-03 02:30:47,930 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-03 02:30:47,931 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-10-03 02:30:47,931 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2019-10-03 02:30:47,931 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-03 02:30:47,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-03 02:30:47,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-03 02:30:47,932 INFO L130 BoogieDeclarations]: Found specification of procedure sll_create [2019-10-03 02:30:47,932 INFO L130 BoogieDeclarations]: Found specification of procedure sll_destroy [2019-10-03 02:30:47,932 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-03 02:30:47,932 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 02:30:47,932 INFO L130 BoogieDeclarations]: Found specification of procedure sll_get_data_at [2019-10-03 02:30:47,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-03 02:30:47,933 INFO L130 BoogieDeclarations]: Found specification of procedure sll_update_at [2019-10-03 02:30:47,933 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 02:30:47,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 02:30:47,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 02:30:48,346 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-10-03 02:30:48,497 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 02:30:48,498 INFO L283 CfgBuilder]: Removed 6 assume(true) statements. [2019-10-03 02:30:48,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:30:48 BoogieIcfgContainer [2019-10-03 02:30:48,499 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 02:30:48,501 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 02:30:48,501 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 02:30:48,504 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 02:30:48,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 02:30:46" (1/3) ... [2019-10-03 02:30:48,506 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@582d8124 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:30:48, skipping insertion in model container [2019-10-03 02:30:48,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:30:47" (2/3) ... [2019-10-03 02:30:48,506 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@582d8124 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:30:48, skipping insertion in model container [2019-10-03 02:30:48,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:30:48" (3/3) ... [2019-10-03 02:30:48,509 INFO L109 eAbstractionObserver]: Analyzing ICFG sll2n_update_all_reverse.i [2019-10-03 02:30:48,520 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 02:30:48,534 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 02:30:48,554 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 02:30:48,579 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 02:30:48,579 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 02:30:48,580 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 02:30:48,580 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 02:30:48,580 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 02:30:48,580 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 02:30:48,580 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 02:30:48,580 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 02:30:48,598 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states. [2019-10-03 02:30:48,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-03 02:30:48,610 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:30:48,612 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, 1] [2019-10-03 02:30:48,614 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:30:48,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:30:48,619 INFO L82 PathProgramCache]: Analyzing trace with hash -1559034541, now seen corresponding path program 1 times [2019-10-03 02:30:48,622 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:30:48,700 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:30:48,700 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:30:48,701 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:30:48,701 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:30:48,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:30:48,799 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 02:30:48,806 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:30:48,807 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-03 02:30:48,807 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:30:48,814 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:30:48,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:30:48,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:30:48,833 INFO L87 Difference]: Start difference. First operand 55 states. Second operand 2 states. [2019-10-03 02:30:48,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:30:48,852 INFO L93 Difference]: Finished difference Result 55 states and 61 transitions. [2019-10-03 02:30:48,852 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:30:48,853 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 25 [2019-10-03 02:30:48,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:30:48,864 INFO L225 Difference]: With dead ends: 55 [2019-10-03 02:30:48,864 INFO L226 Difference]: Without dead ends: 42 [2019-10-03 02:30:48,866 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 02:30:48,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2019-10-03 02:30:48,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2019-10-03 02:30:48,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-10-03 02:30:48,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2019-10-03 02:30:48,908 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 25 [2019-10-03 02:30:48,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:30:48,909 INFO L475 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2019-10-03 02:30:48,909 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:30:48,909 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2019-10-03 02:30:48,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-03 02:30:48,911 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:30:48,911 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, 1] [2019-10-03 02:30:48,911 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:30:48,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:30:48,912 INFO L82 PathProgramCache]: Analyzing trace with hash -404189262, now seen corresponding path program 1 times [2019-10-03 02:30:48,912 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:30:48,917 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:30:48,918 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:30:48,918 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:30:48,918 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:30:48,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:30:49,008 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 02:30:49,008 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:30:49,009 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-03 02:30:49,009 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:30:49,011 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-03 02:30:49,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-03 02:30:49,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-03 02:30:49,012 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand 4 states. [2019-10-03 02:30:49,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:30:49,101 INFO L93 Difference]: Finished difference Result 52 states and 58 transitions. [2019-10-03 02:30:49,103 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-03 02:30:49,103 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2019-10-03 02:30:49,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:30:49,107 INFO L225 Difference]: With dead ends: 52 [2019-10-03 02:30:49,107 INFO L226 Difference]: Without dead ends: 52 [2019-10-03 02:30:49,108 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:30:49,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2019-10-03 02:30:49,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 43. [2019-10-03 02:30:49,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-10-03 02:30:49,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 47 transitions. [2019-10-03 02:30:49,140 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 47 transitions. Word has length 25 [2019-10-03 02:30:49,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:30:49,142 INFO L475 AbstractCegarLoop]: Abstraction has 43 states and 47 transitions. [2019-10-03 02:30:49,142 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-03 02:30:49,142 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 47 transitions. [2019-10-03 02:30:49,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-10-03 02:30:49,144 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:30:49,145 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:30:49,145 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:30:49,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:30:49,146 INFO L82 PathProgramCache]: Analyzing trace with hash 856367100, now seen corresponding path program 1 times [2019-10-03 02:30:49,146 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:30:49,160 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:30:49,160 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:30:49,160 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:30:49,160 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:30:49,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:30:49,530 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:30:49,530 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-03 02:30:49,530 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-10-03 02:30:49,531 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 34 with the following transitions: [2019-10-03 02:30:49,534 INFO L207 CegarAbsIntRunner]: [0], [7], [13], [14], [34], [41], [47], [48], [51], [57], [67], [68], [79], [80], [81], [83], [89], [91], [94], [98], [106], [108], [111], [121], [133], [134], [135], [136], [137], [138], [141], [142], [143] [2019-10-03 02:30:49,608 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-03 02:30:49,608 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-03 02:30:49,745 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-03 02:30:49,747 INFO L272 AbstractInterpreter]: Visited 9 different actions 9 times. Never merged. Never widened. Performed 30 root evaluator evaluations with a maximum evaluation depth of 3. Performed 30 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 23 variables. [2019-10-03 02:30:49,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:30:49,751 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-03 02:30:49,805 INFO L227 lantSequenceWeakener]: Weakened 7 states. On average, predicates are now at 86.19% of their original sizes. [2019-10-03 02:30:49,805 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-10-03 02:30:49,823 INFO L420 sIntCurrentIteration]: We unified 32 AI predicates to 32 [2019-10-03 02:30:49,823 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-03 02:30:49,824 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-03 02:30:49,825 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [13] total 16 [2019-10-03 02:30:49,825 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:30:49,825 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-03 02:30:49,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-03 02:30:49,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:30:49,826 INFO L87 Difference]: Start difference. First operand 43 states and 47 transitions. Second operand 5 states. [2019-10-03 02:30:49,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:30:49,858 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2019-10-03 02:30:49,858 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-03 02:30:49,859 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2019-10-03 02:30:49,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:30:49,859 INFO L225 Difference]: With dead ends: 16 [2019-10-03 02:30:49,859 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 02:30:49,860 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 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 02:30:49,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 02:30:49,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 02:30:49,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 02:30:49,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 02:30:49,861 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2019-10-03 02:30:49,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:30:49,861 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 02:30:49,861 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-03 02:30:49,862 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 02:30:49,862 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 02:30:49,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 02:30:49 BoogieIcfgContainer [2019-10-03 02:30:49,868 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 02:30:49,871 INFO L168 Benchmark]: Toolchain (without parser) took 2889.91 ms. Allocated memory was 133.2 MB in the beginning and 221.8 MB in the end (delta: 88.6 MB). Free memory was 84.7 MB in the beginning and 156.7 MB in the end (delta: -72.0 MB). Peak memory consumption was 16.6 MB. Max. memory is 7.1 GB. [2019-10-03 02:30:49,872 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 133.2 MB. Free memory was 104.4 MB in the beginning and 104.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-03 02:30:49,873 INFO L168 Benchmark]: CACSL2BoogieTranslator took 752.18 ms. Allocated memory was 133.2 MB in the beginning and 200.3 MB in the end (delta: 67.1 MB). Free memory was 84.3 MB in the beginning and 162.1 MB in the end (delta: -77.7 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. [2019-10-03 02:30:49,874 INFO L168 Benchmark]: Boogie Preprocessor took 107.57 ms. Allocated memory is still 200.3 MB. Free memory was 162.1 MB in the beginning and 158.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 7.1 GB. [2019-10-03 02:30:49,877 INFO L168 Benchmark]: RCFGBuilder took 658.08 ms. Allocated memory is still 200.3 MB. Free memory was 158.9 MB in the beginning and 112.0 MB in the end (delta: 46.9 MB). Peak memory consumption was 46.9 MB. Max. memory is 7.1 GB. [2019-10-03 02:30:49,878 INFO L168 Benchmark]: TraceAbstraction took 1367.26 ms. Allocated memory was 200.3 MB in the beginning and 221.8 MB in the end (delta: 21.5 MB). Free memory was 111.4 MB in the beginning and 156.7 MB in the end (delta: -45.3 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-10-03 02:30:49,884 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 133.2 MB. Free memory was 104.4 MB in the beginning and 104.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 752.18 ms. Allocated memory was 133.2 MB in the beginning and 200.3 MB in the end (delta: 67.1 MB). Free memory was 84.3 MB in the beginning and 162.1 MB in the end (delta: -77.7 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 107.57 ms. Allocated memory is still 200.3 MB. Free memory was 162.1 MB in the beginning and 158.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 658.08 ms. Allocated memory is still 200.3 MB. Free memory was 158.9 MB in the beginning and 112.0 MB in the end (delta: 46.9 MB). Peak memory consumption was 46.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1367.26 ms. Allocated memory was 200.3 MB in the beginning and 221.8 MB in the end (delta: 21.5 MB). Free memory was 111.4 MB in the beginning and 156.7 MB in the end (delta: -45.3 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 619]: 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 11 procedures, 62 locations, 1 error locations. SAFE Result, 1.2s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 116 SDtfs, 26 SDslu, 105 SDs, 0 SdLazy, 11 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred in iteration=0, 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, 0.953125 AbsIntWeakeningRatio, 1.1875 AbsIntAvgWeakeningVarsNumRemoved, 0.65625 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 9 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 83 NumberOfCodeBlocks, 83 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 80 ConstructedInterpolants, 0 QuantifiedInterpolants, 3792 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 0/1 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...