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/forester-heap/sll-simple-white-blue-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 01:47:26,219 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 01:47:26,221 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 01:47:26,232 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 01:47:26,232 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 01:47:26,233 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 01:47:26,235 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 01:47:26,237 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 01:47:26,239 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 01:47:26,240 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 01:47:26,241 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 01:47:26,243 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 01:47:26,243 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 01:47:26,250 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 01:47:26,251 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 01:47:26,254 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 01:47:26,255 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 01:47:26,256 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 01:47:26,259 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 01:47:26,261 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 01:47:26,266 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 01:47:26,267 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 01:47:26,268 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 01:47:26,268 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 01:47:26,271 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 01:47:26,271 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 01:47:26,271 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 01:47:26,272 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 01:47:26,272 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 01:47:26,273 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 01:47:26,273 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 01:47:26,274 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 01:47:26,275 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 01:47:26,275 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 01:47:26,276 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 01:47:26,276 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 01:47:26,277 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 01:47:26,277 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 01:47:26,278 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 01:47:26,278 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 01:47:26,279 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 01:47:26,280 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 [2019-09-10 01:47:26,296 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 01:47:26,297 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 01:47:26,297 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 01:47:26,297 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 01:47:26,298 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 01:47:26,298 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 01:47:26,298 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 01:47:26,299 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 01:47:26,299 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 01:47:26,299 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 01:47:26,300 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 01:47:26,300 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 01:47:26,300 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 01:47:26,300 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 01:47:26,300 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 01:47:26,301 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 01:47:26,301 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 01:47:26,301 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 01:47:26,301 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 01:47:26,301 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 01:47:26,302 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 01:47:26,302 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 01:47:26,302 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 01:47:26,302 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 01:47:26,302 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 01:47:26,303 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 01:47:26,303 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 01:47:26,303 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 01:47:26,303 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 01:47:26,303 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 01:47:26,334 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 01:47:26,346 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 01:47:26,350 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 01:47:26,351 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 01:47:26,351 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 01:47:26,352 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/sll-simple-white-blue-2.i [2019-09-10 01:47:26,419 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4703cc8a7/21aeed6e9f1b49a3b2401b5d137558e8/FLAG432cadc5d [2019-09-10 01:47:26,958 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 01:47:26,959 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-simple-white-blue-2.i [2019-09-10 01:47:26,977 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4703cc8a7/21aeed6e9f1b49a3b2401b5d137558e8/FLAG432cadc5d [2019-09-10 01:47:27,243 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4703cc8a7/21aeed6e9f1b49a3b2401b5d137558e8 [2019-09-10 01:47:27,252 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 01:47:27,254 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 01:47:27,255 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 01:47:27,255 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 01:47:27,260 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 01:47:27,261 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:47:27" (1/1) ... [2019-09-10 01:47:27,264 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7178c33e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:27, skipping insertion in model container [2019-09-10 01:47:27,264 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:47:27" (1/1) ... [2019-09-10 01:47:27,271 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 01:47:27,320 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 01:47:27,725 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:47:27,735 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 01:47:27,787 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:47:27,834 INFO L192 MainTranslator]: Completed translation [2019-09-10 01:47:27,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:27 WrapperNode [2019-09-10 01:47:27,835 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 01:47:27,836 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 01:47:27,836 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 01:47:27,836 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 01:47:27,850 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:27" (1/1) ... [2019-09-10 01:47:27,850 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:27" (1/1) ... [2019-09-10 01:47:27,867 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:27" (1/1) ... [2019-09-10 01:47:27,867 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:27" (1/1) ... [2019-09-10 01:47:27,885 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:27" (1/1) ... [2019-09-10 01:47:27,891 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:27" (1/1) ... [2019-09-10 01:47:27,895 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:27" (1/1) ... [2019-09-10 01:47:27,901 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 01:47:27,901 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 01:47:27,902 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 01:47:27,902 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 01:47:27,903 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:27" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 01:47:27,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 01:47:27,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 01:47:27,954 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 01:47:27,954 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-09-10 01:47:27,954 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-09-10 01:47:27,954 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-09-10 01:47:27,955 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-09-10 01:47:27,955 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-09-10 01:47:27,955 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-09-10 01:47:27,955 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-09-10 01:47:27,955 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-09-10 01:47:27,955 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-09-10 01:47:27,956 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-09-10 01:47:27,956 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-09-10 01:47:27,956 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-09-10 01:47:27,956 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-09-10 01:47:27,956 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-09-10 01:47:27,956 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-09-10 01:47:27,957 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-09-10 01:47:27,957 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-09-10 01:47:27,957 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-09-10 01:47:27,957 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-09-10 01:47:27,957 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-09-10 01:47:27,957 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-09-10 01:47:27,958 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-09-10 01:47:27,958 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-09-10 01:47:27,958 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-09-10 01:47:27,958 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-09-10 01:47:27,958 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-09-10 01:47:27,958 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-09-10 01:47:27,959 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-09-10 01:47:27,959 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-09-10 01:47:27,959 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-09-10 01:47:27,959 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-09-10 01:47:27,959 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-09-10 01:47:27,959 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-09-10 01:47:27,960 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-09-10 01:47:27,960 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-09-10 01:47:27,960 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-09-10 01:47:27,960 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-09-10 01:47:27,960 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-09-10 01:47:27,960 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-09-10 01:47:27,960 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-09-10 01:47:27,961 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-09-10 01:47:27,961 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-09-10 01:47:27,961 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-09-10 01:47:27,961 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-09-10 01:47:27,961 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-09-10 01:47:27,961 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-09-10 01:47:27,962 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-09-10 01:47:27,962 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-09-10 01:47:27,962 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-09-10 01:47:27,962 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-09-10 01:47:27,962 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 01:47:27,962 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-10 01:47:27,962 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-09-10 01:47:27,963 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 01:47:27,963 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-09-10 01:47:27,963 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-09-10 01:47:27,963 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-09-10 01:47:27,963 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-09-10 01:47:27,963 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-09-10 01:47:27,963 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-09-10 01:47:27,964 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-09-10 01:47:27,964 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-09-10 01:47:27,964 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-09-10 01:47:27,964 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-09-10 01:47:27,964 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-09-10 01:47:27,964 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-09-10 01:47:27,965 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-09-10 01:47:27,965 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-09-10 01:47:27,965 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-09-10 01:47:27,965 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-09-10 01:47:27,965 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-09-10 01:47:27,965 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-09-10 01:47:27,966 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-09-10 01:47:27,966 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-09-10 01:47:27,966 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-09-10 01:47:27,966 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-09-10 01:47:27,966 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-09-10 01:47:27,966 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-09-10 01:47:27,967 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-09-10 01:47:27,967 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-09-10 01:47:27,967 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-09-10 01:47:27,967 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-09-10 01:47:27,967 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-09-10 01:47:27,967 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-09-10 01:47:27,967 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-09-10 01:47:27,968 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-09-10 01:47:27,968 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-09-10 01:47:27,968 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-09-10 01:47:27,968 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-09-10 01:47:27,968 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-09-10 01:47:27,968 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-09-10 01:47:27,969 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-09-10 01:47:27,969 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-09-10 01:47:27,969 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-09-10 01:47:27,969 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-09-10 01:47:27,969 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-09-10 01:47:27,969 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-09-10 01:47:27,969 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-09-10 01:47:27,970 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-09-10 01:47:27,970 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-09-10 01:47:27,970 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-09-10 01:47:27,970 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-09-10 01:47:27,970 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-09-10 01:47:27,970 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 01:47:27,970 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 01:47:27,971 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 01:47:27,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 01:47:27,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 01:47:27,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 01:47:27,971 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 01:47:27,971 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 01:47:27,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 01:47:27,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 01:47:27,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 01:47:28,499 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 01:47:28,499 INFO L283 CfgBuilder]: Removed 8 assume(true) statements. [2019-09-10 01:47:28,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:47:28 BoogieIcfgContainer [2019-09-10 01:47:28,501 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 01:47:28,502 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 01:47:28,502 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 01:47:28,505 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 01:47:28,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 01:47:27" (1/3) ... [2019-09-10 01:47:28,506 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b4d82ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:47:28, skipping insertion in model container [2019-09-10 01:47:28,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:27" (2/3) ... [2019-09-10 01:47:28,507 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b4d82ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:47:28, skipping insertion in model container [2019-09-10 01:47:28,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:47:28" (3/3) ... [2019-09-10 01:47:28,509 INFO L109 eAbstractionObserver]: Analyzing ICFG sll-simple-white-blue-2.i [2019-09-10 01:47:28,518 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 01:47:28,526 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 01:47:28,543 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 01:47:28,569 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 01:47:28,570 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 01:47:28,570 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 01:47:28,570 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 01:47:28,570 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 01:47:28,571 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 01:47:28,571 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 01:47:28,571 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 01:47:28,586 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2019-09-10 01:47:28,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-09-10 01:47:28,596 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:47:28,597 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:47:28,599 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:47:28,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:47:28,605 INFO L82 PathProgramCache]: Analyzing trace with hash -2080385860, now seen corresponding path program 1 times [2019-09-10 01:47:28,608 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:47:28,667 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:28,668 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:47:28,668 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:28,668 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:47:28,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:47:28,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 01:47:28,763 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:47:28,764 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 01:47:28,764 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:47:28,770 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 01:47:28,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 01:47:28,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 01:47:28,788 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 2 states. [2019-09-10 01:47:28,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:47:28,806 INFO L93 Difference]: Finished difference Result 30 states and 36 transitions. [2019-09-10 01:47:28,806 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 01:47:28,807 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2019-09-10 01:47:28,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:47:28,816 INFO L225 Difference]: With dead ends: 30 [2019-09-10 01:47:28,816 INFO L226 Difference]: Without dead ends: 23 [2019-09-10 01:47:28,818 INFO L628 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 [2019-09-10 01:47:28,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-09-10 01:47:28,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-09-10 01:47:28,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-09-10 01:47:28,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 28 transitions. [2019-09-10 01:47:28,854 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 28 transitions. Word has length 15 [2019-09-10 01:47:28,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:47:28,855 INFO L475 AbstractCegarLoop]: Abstraction has 23 states and 28 transitions. [2019-09-10 01:47:28,855 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 01:47:28,855 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2019-09-10 01:47:28,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-09-10 01:47:28,856 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:47:28,856 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:47:28,856 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:47:28,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:47:28,857 INFO L82 PathProgramCache]: Analyzing trace with hash 442262470, now seen corresponding path program 1 times [2019-09-10 01:47:28,857 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:47:28,859 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:28,859 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:47:28,859 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:28,860 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:47:28,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-10 01:47:28,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-10 01:47:28,954 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-09-10 01:47:28,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 01:47:28 BoogieIcfgContainer [2019-09-10 01:47:28,993 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 01:47:28,995 INFO L168 Benchmark]: Toolchain (without parser) took 1740.61 ms. Allocated memory was 135.3 MB in the beginning and 201.9 MB in the end (delta: 66.6 MB). Free memory was 88.8 MB in the beginning and 93.7 MB in the end (delta: -5.0 MB). Peak memory consumption was 61.6 MB. Max. memory is 7.1 GB. [2019-09-10 01:47:28,996 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 135.3 MB. Free memory is still 108.1 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-09-10 01:47:28,997 INFO L168 Benchmark]: CACSL2BoogieTranslator took 580.92 ms. Allocated memory was 135.3 MB in the beginning and 201.9 MB in the end (delta: 66.6 MB). Free memory was 88.3 MB in the beginning and 166.2 MB in the end (delta: -77.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2019-09-10 01:47:28,998 INFO L168 Benchmark]: Boogie Preprocessor took 65.07 ms. Allocated memory is still 201.9 MB. Free memory was 166.2 MB in the beginning and 163.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2019-09-10 01:47:28,999 INFO L168 Benchmark]: RCFGBuilder took 599.54 ms. Allocated memory is still 201.9 MB. Free memory was 163.6 MB in the beginning and 118.9 MB in the end (delta: 44.7 MB). Peak memory consumption was 44.7 MB. Max. memory is 7.1 GB. [2019-09-10 01:47:29,000 INFO L168 Benchmark]: TraceAbstraction took 490.94 ms. Allocated memory is still 201.9 MB. Free memory was 118.9 MB in the beginning and 93.7 MB in the end (delta: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 7.1 GB. [2019-09-10 01:47:29,003 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 135.3 MB. Free memory is still 108.1 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 580.92 ms. Allocated memory was 135.3 MB in the beginning and 201.9 MB in the end (delta: 66.6 MB). Free memory was 88.3 MB in the beginning and 166.2 MB in the end (delta: -77.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 65.07 ms. Allocated memory is still 201.9 MB. Free memory was 166.2 MB in the beginning and 163.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 599.54 ms. Allocated memory is still 201.9 MB. Free memory was 163.6 MB in the beginning and 118.9 MB in the end (delta: 44.7 MB). Peak memory consumption was 44.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 490.94 ms. Allocated memory is still 201.9 MB. Free memory was 118.9 MB in the beginning and 93.7 MB in the end (delta: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1042]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L988] SLL* head = malloc(sizeof(SLL)); [L989] head->next = ((void*)0) [L990] head->data = 0 [L992] SLL* x = head; VAL [head={1:0}, malloc(sizeof(SLL))={1:0}, x={1:0}] [L995] COND FALSE !(__VERIFIER_nondet_int()) [L1005] COND TRUE __VERIFIER_nondet_int() [L1006] x = malloc(sizeof(SLL)) [L1007] x->data = 1 [L1008] x->next = head [L1009] head = x VAL [head={-1:0}, malloc(sizeof(SLL))={1:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] [L1029] x = head VAL [head={-1:0}, malloc(sizeof(SLL))={1:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] [L1032] EXPR x->data VAL [head={-1:0}, malloc(sizeof(SLL))={1:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}, x->data=1] [L1032] COND FALSE !(x->data != 1) [L1038] EXPR x->next [L1038] x = x->next [L1039] COND TRUE \read(*x) [L1041] EXPR x->data VAL [head={-1:0}, malloc(sizeof(SLL))={1:0}, malloc(sizeof(SLL))={-1:0}, x={1:0}, x->data=0] [L1041] COND TRUE x->data != 1 [L1042] __VERIFIER_error() VAL [head={-1:0}, malloc(sizeof(SLL))={1:0}, malloc(sizeof(SLL))={-1:0}, x={1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 31 locations, 1 error locations. UNSAFE Result, 0.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 36 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 196 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...