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-ext3-properties/sll_circular_traversal-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-16 17:07:24,900 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-16 17:07:24,903 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-16 17:07:24,920 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-16 17:07:24,921 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-16 17:07:24,922 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-16 17:07:24,925 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-16 17:07:24,937 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-16 17:07:24,940 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-16 17:07:24,941 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-16 17:07:24,942 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-16 17:07:24,945 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-16 17:07:24,945 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-16 17:07:24,948 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-16 17:07:24,950 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-16 17:07:24,951 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-16 17:07:24,952 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-16 17:07:24,955 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-16 17:07:24,957 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-16 17:07:24,961 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-16 17:07:24,963 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-16 17:07:24,966 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-16 17:07:24,968 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-16 17:07:24,969 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-16 17:07:24,972 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-16 17:07:24,972 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-16 17:07:24,972 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-16 17:07:24,974 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-16 17:07:24,975 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-16 17:07:24,976 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-16 17:07:24,976 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-16 17:07:24,978 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-16 17:07:24,979 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-16 17:07:24,979 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-16 17:07:24,984 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-16 17:07:24,984 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-16 17:07:24,985 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-16 17:07:24,985 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-16 17:07:24,985 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-16 17:07:24,986 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-16 17:07:24,987 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-16 17:07:24,988 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 [2019-09-16 17:07:25,011 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-16 17:07:25,011 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-16 17:07:25,012 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-16 17:07:25,013 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-16 17:07:25,013 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-16 17:07:25,013 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-16 17:07:25,014 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-16 17:07:25,014 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-16 17:07:25,014 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-16 17:07:25,014 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-16 17:07:25,016 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-16 17:07:25,017 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-16 17:07:25,017 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-16 17:07:25,017 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-16 17:07:25,017 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-16 17:07:25,018 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-16 17:07:25,018 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-16 17:07:25,018 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-16 17:07:25,018 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-16 17:07:25,019 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-16 17:07:25,019 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-16 17:07:25,019 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-16 17:07:25,019 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-16 17:07:25,020 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 17:07:25,020 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-16 17:07:25,020 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-16 17:07:25,020 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-16 17:07:25,020 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-16 17:07:25,021 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-16 17:07:25,021 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-16 17:07:25,071 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-16 17:07:25,086 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-16 17:07:25,090 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-16 17:07:25,093 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-16 17:07:25,094 INFO L275 PluginConnector]: CDTParser initialized [2019-09-16 17:07:25,095 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-ext3-properties/sll_circular_traversal-1.i [2019-09-16 17:07:25,161 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/384e94717/9574230dfc1443b6bbe0063c14a8b7f5/FLAG2debce288 [2019-09-16 17:07:25,675 INFO L306 CDTParser]: Found 1 translation units. [2019-09-16 17:07:25,676 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-ext3-properties/sll_circular_traversal-1.i [2019-09-16 17:07:25,693 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/384e94717/9574230dfc1443b6bbe0063c14a8b7f5/FLAG2debce288 [2019-09-16 17:07:26,046 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/384e94717/9574230dfc1443b6bbe0063c14a8b7f5 [2019-09-16 17:07:26,055 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-16 17:07:26,056 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-16 17:07:26,057 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-16 17:07:26,057 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-16 17:07:26,060 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-16 17:07:26,061 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:07:26" (1/1) ... [2019-09-16 17:07:26,064 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62121b16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:26, skipping insertion in model container [2019-09-16 17:07:26,064 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:07:26" (1/1) ... [2019-09-16 17:07:26,072 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-16 17:07:26,107 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-16 17:07:26,525 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:07:26,537 INFO L188 MainTranslator]: Completed pre-run [2019-09-16 17:07:26,580 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:07:26,644 INFO L192 MainTranslator]: Completed translation [2019-09-16 17:07:26,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:26 WrapperNode [2019-09-16 17:07:26,646 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-16 17:07:26,647 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-16 17:07:26,647 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-16 17:07:26,647 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-16 17:07:26,659 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:26" (1/1) ... [2019-09-16 17:07:26,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:26" (1/1) ... [2019-09-16 17:07:26,674 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:26" (1/1) ... [2019-09-16 17:07:26,675 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:26" (1/1) ... [2019-09-16 17:07:26,690 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:26" (1/1) ... [2019-09-16 17:07:26,695 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:26" (1/1) ... [2019-09-16 17:07:26,700 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:26" (1/1) ... [2019-09-16 17:07:26,706 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-16 17:07:26,707 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-16 17:07:26,707 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-16 17:07:26,707 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-16 17:07:26,708 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:26" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 17:07:26,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-16 17:07:26,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-16 17:07:26,759 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-09-16 17:07:26,759 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-09-16 17:07:26,759 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-09-16 17:07:26,759 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_circular_create [2019-09-16 17:07:26,759 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-16 17:07:26,759 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-16 17:07:26,760 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-09-16 17:07:26,760 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-09-16 17:07:26,760 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-09-16 17:07:26,760 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-09-16 17:07:26,760 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-09-16 17:07:26,760 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-09-16 17:07:26,760 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-09-16 17:07:26,761 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-09-16 17:07:26,761 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-09-16 17:07:26,761 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-09-16 17:07:26,761 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-09-16 17:07:26,761 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-09-16 17:07:26,761 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-09-16 17:07:26,762 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-09-16 17:07:26,762 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-09-16 17:07:26,762 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-09-16 17:07:26,762 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-09-16 17:07:26,762 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-09-16 17:07:26,762 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-09-16 17:07:26,763 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-09-16 17:07:26,763 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-09-16 17:07:26,763 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-09-16 17:07:26,763 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-09-16 17:07:26,763 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-09-16 17:07:26,763 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-09-16 17:07:26,763 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-09-16 17:07:26,764 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-09-16 17:07:26,764 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-09-16 17:07:26,764 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-09-16 17:07:26,764 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-09-16 17:07:26,764 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-09-16 17:07:26,764 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-09-16 17:07:26,764 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-09-16 17:07:26,765 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-09-16 17:07:26,765 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-09-16 17:07:26,765 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-09-16 17:07:26,765 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-09-16 17:07:26,765 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-09-16 17:07:26,765 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-09-16 17:07:26,766 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-09-16 17:07:26,766 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-09-16 17:07:26,766 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-09-16 17:07:26,766 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-09-16 17:07:26,766 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-09-16 17:07:26,766 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-09-16 17:07:26,766 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-09-16 17:07:26,767 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-09-16 17:07:26,767 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-09-16 17:07:26,767 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-09-16 17:07:26,767 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-09-16 17:07:26,767 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-09-16 17:07:26,767 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-09-16 17:07:26,768 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-16 17:07:26,768 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-16 17:07:26,768 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-09-16 17:07:26,768 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-16 17:07:26,768 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-09-16 17:07:26,768 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-09-16 17:07:26,769 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-09-16 17:07:26,769 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-09-16 17:07:26,769 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-09-16 17:07:26,769 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-09-16 17:07:26,769 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-09-16 17:07:26,769 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-09-16 17:07:26,769 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-09-16 17:07:26,770 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-09-16 17:07:26,770 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-09-16 17:07:26,770 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-09-16 17:07:26,770 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-09-16 17:07:26,770 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-09-16 17:07:26,770 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-09-16 17:07:26,771 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-09-16 17:07:26,771 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-09-16 17:07:26,771 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-09-16 17:07:26,771 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-09-16 17:07:26,771 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-09-16 17:07:26,771 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-09-16 17:07:26,772 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-09-16 17:07:26,772 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-09-16 17:07:26,772 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-09-16 17:07:26,772 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-09-16 17:07:26,772 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-09-16 17:07:26,772 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-09-16 17:07:26,773 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-09-16 17:07:26,773 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-09-16 17:07:26,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-09-16 17:07:26,773 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-09-16 17:07:26,773 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-09-16 17:07:26,773 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-09-16 17:07:26,774 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-09-16 17:07:26,774 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-09-16 17:07:26,774 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-09-16 17:07:26,774 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-09-16 17:07:26,774 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-09-16 17:07:26,774 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-09-16 17:07:26,774 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-09-16 17:07:26,775 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-09-16 17:07:26,775 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-09-16 17:07:26,775 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-09-16 17:07:26,775 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-09-16 17:07:26,775 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-09-16 17:07:26,775 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-09-16 17:07:26,775 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-09-16 17:07:26,776 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-09-16 17:07:26,776 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-09-16 17:07:26,776 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-09-16 17:07:26,776 INFO L130 BoogieDeclarations]: Found specification of procedure sll_circular_create [2019-09-16 17:07:26,776 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-16 17:07:26,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-16 17:07:26,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-16 17:07:26,777 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-16 17:07:26,777 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-16 17:07:26,777 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-16 17:07:26,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-16 17:07:26,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-16 17:07:26,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-16 17:07:27,098 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-09-16 17:07:27,257 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-16 17:07:27,258 INFO L283 CfgBuilder]: Removed 3 assume(true) statements. [2019-09-16 17:07:27,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:07:27 BoogieIcfgContainer [2019-09-16 17:07:27,259 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-16 17:07:27,260 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-16 17:07:27,261 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-16 17:07:27,264 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-16 17:07:27,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 05:07:26" (1/3) ... [2019-09-16 17:07:27,265 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6514ce29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:07:27, skipping insertion in model container [2019-09-16 17:07:27,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:26" (2/3) ... [2019-09-16 17:07:27,265 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6514ce29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:07:27, skipping insertion in model container [2019-09-16 17:07:27,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:07:27" (3/3) ... [2019-09-16 17:07:27,267 INFO L109 eAbstractionObserver]: Analyzing ICFG sll_circular_traversal-1.i [2019-09-16 17:07:27,277 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-16 17:07:27,285 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-16 17:07:27,300 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-16 17:07:27,326 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-16 17:07:27,326 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-16 17:07:27,327 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-16 17:07:27,327 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-16 17:07:27,327 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-16 17:07:27,327 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-16 17:07:27,328 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-16 17:07:27,328 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-16 17:07:27,342 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states. [2019-09-16 17:07:27,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-09-16 17:07:27,352 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:07:27,353 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:07:27,355 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:07:27,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:07:27,360 INFO L82 PathProgramCache]: Analyzing trace with hash 1054550836, now seen corresponding path program 1 times [2019-09-16 17:07:27,363 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:07:27,428 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:27,429 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:07:27,429 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:27,429 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:07:27,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:07:27,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:07:27,534 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:07:27,535 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-16 17:07:27,535 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:07:27,540 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-16 17:07:27,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-16 17:07:27,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:07:27,558 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 2 states. [2019-09-16 17:07:27,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:07:27,575 INFO L93 Difference]: Finished difference Result 35 states and 40 transitions. [2019-09-16 17:07:27,575 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-16 17:07:27,576 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-09-16 17:07:27,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:07:27,585 INFO L225 Difference]: With dead ends: 35 [2019-09-16 17:07:27,585 INFO L226 Difference]: Without dead ends: 26 [2019-09-16 17:07:27,586 INFO L636 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 [2019-09-16 17:07:27,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-09-16 17:07:27,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2019-09-16 17:07:27,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-09-16 17:07:27,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2019-09-16 17:07:27,620 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 18 [2019-09-16 17:07:27,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:07:27,621 INFO L475 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2019-09-16 17:07:27,621 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-16 17:07:27,621 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2019-09-16 17:07:27,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-09-16 17:07:27,622 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:07:27,622 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:07:27,622 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:07:27,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:07:27,623 INFO L82 PathProgramCache]: Analyzing trace with hash 1615663296, now seen corresponding path program 1 times [2019-09-16 17:07:27,623 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:07:27,628 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:27,628 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:07:27,628 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:27,629 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:07:27,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:07:27,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:07:27,749 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:07:27,750 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-16 17:07:27,750 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:07:27,751 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-16 17:07:27,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-16 17:07:27,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-16 17:07:27,752 INFO L87 Difference]: Start difference. First operand 26 states and 29 transitions. Second operand 5 states. [2019-09-16 17:07:27,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:07:27,801 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2019-09-16 17:07:27,802 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-16 17:07:27,802 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2019-09-16 17:07:27,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:07:27,803 INFO L225 Difference]: With dead ends: 32 [2019-09-16 17:07:27,803 INFO L226 Difference]: Without dead ends: 29 [2019-09-16 17:07:27,804 INFO L636 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 [2019-09-16 17:07:27,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-09-16 17:07:27,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2019-09-16 17:07:27,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-09-16 17:07:27,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2019-09-16 17:07:27,810 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 18 [2019-09-16 17:07:27,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:07:27,811 INFO L475 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2019-09-16 17:07:27,811 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-16 17:07:27,811 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2019-09-16 17:07:27,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-09-16 17:07:27,812 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:07:27,812 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:07:27,812 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:07:27,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:07:27,813 INFO L82 PathProgramCache]: Analyzing trace with hash -1504540904, now seen corresponding path program 1 times [2019-09-16 17:07:27,813 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:07:27,818 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:27,818 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:07:27,818 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:27,818 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:07:27,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:07:27,926 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:07:27,926 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-16 17:07:27,926 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-16 17:07:27,928 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 22 with the following transitions: [2019-09-16 17:07:27,929 INFO L207 CegarAbsIntRunner]: [7], [8], [9], [11], [15], [18], [50], [55], [61], [63], [70], [72], [78], [80], [84], [85], [89], [90], [95], [96], [97] [2019-09-16 17:07:27,964 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-16 17:07:27,965 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-16 17:07:28,037 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-16 17:07:28,039 INFO L272 AbstractInterpreter]: Visited 8 different actions 8 times. Never merged. Never widened. Performed 33 root evaluator evaluations with a maximum evaluation depth of 0. Performed 33 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 33 variables. [2019-09-16 17:07:28,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:07:28,043 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-16 17:07:28,078 INFO L227 lantSequenceWeakener]: Weakened 6 states. On average, predicates are now at 88.89% of their original sizes. [2019-09-16 17:07:28,078 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-16 17:07:28,087 INFO L420 sIntCurrentIteration]: We unified 20 AI predicates to 20 [2019-09-16 17:07:28,087 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-16 17:07:28,088 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-16 17:07:28,088 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2019-09-16 17:07:28,088 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:07:28,088 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-16 17:07:28,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-16 17:07:28,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-16 17:07:28,089 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand 4 states. [2019-09-16 17:07:28,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:07:28,090 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2019-09-16 17:07:28,091 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-16 17:07:28,091 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2019-09-16 17:07:28,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:07:28,091 INFO L225 Difference]: With dead ends: 8 [2019-09-16 17:07:28,091 INFO L226 Difference]: Without dead ends: 0 [2019-09-16 17:07:28,092 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-16 17:07:28,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-16 17:07:28,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-16 17:07:28,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-16 17:07:28,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-16 17:07:28,093 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2019-09-16 17:07:28,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:07:28,093 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-16 17:07:28,093 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-16 17:07:28,093 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-16 17:07:28,094 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-16 17:07:28,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 05:07:28 BoogieIcfgContainer [2019-09-16 17:07:28,099 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-16 17:07:28,101 INFO L168 Benchmark]: Toolchain (without parser) took 2044.27 ms. Allocated memory was 139.5 MB in the beginning and 223.3 MB in the end (delta: 83.9 MB). Free memory was 84.4 MB in the beginning and 177.9 MB in the end (delta: -93.5 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-16 17:07:28,102 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 139.5 MB. Free memory is still 103.9 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-09-16 17:07:28,103 INFO L168 Benchmark]: CACSL2BoogieTranslator took 589.30 ms. Allocated memory was 139.5 MB in the beginning and 199.2 MB in the end (delta: 59.8 MB). Free memory was 84.0 MB in the beginning and 162.4 MB in the end (delta: -78.4 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2019-09-16 17:07:28,104 INFO L168 Benchmark]: Boogie Preprocessor took 59.68 ms. Allocated memory is still 199.2 MB. Free memory was 162.4 MB in the beginning and 159.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2019-09-16 17:07:28,104 INFO L168 Benchmark]: RCFGBuilder took 552.72 ms. Allocated memory is still 199.2 MB. Free memory was 159.8 MB in the beginning and 117.3 MB in the end (delta: 42.5 MB). Peak memory consumption was 42.5 MB. Max. memory is 7.1 GB. [2019-09-16 17:07:28,105 INFO L168 Benchmark]: TraceAbstraction took 838.30 ms. Allocated memory was 199.2 MB in the beginning and 223.3 MB in the end (delta: 24.1 MB). Free memory was 116.4 MB in the beginning and 177.9 MB in the end (delta: -61.4 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-16 17:07:28,109 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 139.5 MB. Free memory is still 103.9 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 589.30 ms. Allocated memory was 139.5 MB in the beginning and 199.2 MB in the end (delta: 59.8 MB). Free memory was 84.0 MB in the beginning and 162.4 MB in the end (delta: -78.4 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 59.68 ms. Allocated memory is still 199.2 MB. Free memory was 162.4 MB in the beginning and 159.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 552.72 ms. Allocated memory is still 199.2 MB. Free memory was 159.8 MB in the beginning and 117.3 MB in the end (delta: 42.5 MB). Peak memory consumption was 42.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 838.30 ms. Allocated memory was 199.2 MB in the beginning and 223.3 MB in the end (delta: 24.1 MB). Free memory was 116.4 MB in the beginning and 177.9 MB in the end (delta: -61.4 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 609]: 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 7 procedures, 42 locations, 1 error locations. SAFE Result, 0.7s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 72 SDtfs, 17 SDslu, 69 SDs, 0 SdLazy, 17 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred 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, 0.9083333333333332 AbsIntWeakeningRatio, 1.45 AbsIntAvgWeakeningVarsNumRemoved, 0.7 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 57 NumberOfCodeBlocks, 57 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 1656 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...