/usr/bin/java -ea -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/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/forester-heap/sll-simple-white-blue-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-8fc6572 [2020-07-10 19:04:29,976 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-10 19:04:29,979 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-10 19:04:29,991 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-10 19:04:29,991 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-10 19:04:29,992 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-10 19:04:29,993 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-10 19:04:29,995 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-10 19:04:29,997 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-10 19:04:29,998 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-10 19:04:29,999 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-10 19:04:30,000 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-10 19:04:30,000 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-10 19:04:30,001 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-10 19:04:30,002 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-10 19:04:30,003 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-10 19:04:30,004 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-10 19:04:30,005 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-10 19:04:30,006 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-10 19:04:30,008 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-10 19:04:30,010 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-10 19:04:30,011 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-10 19:04:30,012 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-10 19:04:30,012 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-10 19:04:30,015 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-10 19:04:30,015 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-10 19:04:30,015 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-10 19:04:30,016 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-10 19:04:30,017 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-10 19:04:30,017 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-10 19:04:30,018 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-10 19:04:30,018 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-10 19:04:30,019 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-10 19:04:30,020 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-10 19:04:30,021 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-10 19:04:30,021 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-10 19:04:30,022 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-10 19:04:30,022 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-10 19:04:30,022 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-10 19:04:30,023 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-10 19:04:30,024 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-10 19:04:30,024 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-10 19:04:30,033 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-10 19:04:30,034 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-10 19:04:30,035 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-10 19:04:30,037 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-10 19:04:30,037 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-10 19:04:30,037 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-10 19:04:30,037 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-10 19:04:30,038 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-10 19:04:30,038 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-10 19:04:30,038 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-10 19:04:30,038 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-10 19:04:30,038 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-10 19:04:30,039 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-10 19:04:30,039 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-10 19:04:30,039 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-10 19:04:30,040 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-10 19:04:30,040 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-10 19:04:30,041 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-10 19:04:30,041 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-10 19:04:30,041 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-10 19:04:30,041 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-10 19:04:30,042 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-10 19:04:30,042 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-10 19:04:30,312 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-10 19:04:30,329 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-10 19:04:30,333 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-10 19:04:30,335 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-10 19:04:30,335 INFO L275 PluginConnector]: CDTParser initialized [2020-07-10 19:04:30,336 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/sll-simple-white-blue-2.i [2020-07-10 19:04:30,413 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c1f437cd/05fde6cc9f7c45cca8a454c83ab4c6f4/FLAG8f16ef663 [2020-07-10 19:04:30,953 INFO L306 CDTParser]: Found 1 translation units. [2020-07-10 19:04:30,953 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-simple-white-blue-2.i [2020-07-10 19:04:30,970 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c1f437cd/05fde6cc9f7c45cca8a454c83ab4c6f4/FLAG8f16ef663 [2020-07-10 19:04:31,274 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c1f437cd/05fde6cc9f7c45cca8a454c83ab4c6f4 [2020-07-10 19:04:31,283 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-10 19:04:31,285 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-10 19:04:31,288 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-10 19:04:31,288 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-10 19:04:31,291 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-10 19:04:31,293 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 07:04:31" (1/1) ... [2020-07-10 19:04:31,296 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@129bb515 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 07:04:31, skipping insertion in model container [2020-07-10 19:04:31,296 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 07:04:31" (1/1) ... [2020-07-10 19:04:31,305 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-10 19:04:31,366 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-10 19:04:31,798 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 19:04:31,814 INFO L203 MainTranslator]: Completed pre-run [2020-07-10 19:04:31,902 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 19:04:31,972 INFO L208 MainTranslator]: Completed translation [2020-07-10 19:04:31,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 07:04:31 WrapperNode [2020-07-10 19:04:31,972 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-10 19:04:31,973 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-10 19:04:31,973 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-10 19:04:31,973 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-10 19:04:31,987 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 07:04:31" (1/1) ... [2020-07-10 19:04:31,987 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 07:04:31" (1/1) ... [2020-07-10 19:04:32,026 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 07:04:31" (1/1) ... [2020-07-10 19:04:32,027 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 07:04:31" (1/1) ... [2020-07-10 19:04:32,068 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 07:04:31" (1/1) ... [2020-07-10 19:04:32,075 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 07:04:31" (1/1) ... [2020-07-10 19:04:32,079 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 07:04:31" (1/1) ... [2020-07-10 19:04:32,085 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-10 19:04:32,086 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-10 19:04:32,086 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-10 19:04:32,086 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-10 19:04:32,087 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 07:04:31" (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 [2020-07-10 19:04:32,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-10 19:04:32,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-10 19:04:32,154 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-10 19:04:32,154 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-07-10 19:04:32,155 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-07-10 19:04:32,156 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-07-10 19:04:32,156 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-07-10 19:04:32,156 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-07-10 19:04:32,156 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-07-10 19:04:32,156 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-07-10 19:04:32,156 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-07-10 19:04:32,157 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-07-10 19:04:32,157 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-07-10 19:04:32,157 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-07-10 19:04:32,158 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-07-10 19:04:32,158 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-07-10 19:04:32,158 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-07-10 19:04:32,159 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-07-10 19:04:32,159 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-07-10 19:04:32,159 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-07-10 19:04:32,161 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-07-10 19:04:32,161 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-07-10 19:04:32,163 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-07-10 19:04:32,163 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-07-10 19:04:32,164 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-07-10 19:04:32,164 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-07-10 19:04:32,164 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-07-10 19:04:32,164 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-07-10 19:04:32,165 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-07-10 19:04:32,165 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-07-10 19:04:32,165 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-07-10 19:04:32,165 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-07-10 19:04:32,165 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-07-10 19:04:32,167 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-07-10 19:04:32,167 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-07-10 19:04:32,167 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-07-10 19:04:32,167 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-07-10 19:04:32,167 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-07-10 19:04:32,167 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-07-10 19:04:32,168 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-07-10 19:04:32,168 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-07-10 19:04:32,168 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-07-10 19:04:32,168 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-07-10 19:04:32,168 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-07-10 19:04:32,168 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-07-10 19:04:32,168 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-07-10 19:04:32,169 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-07-10 19:04:32,169 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-07-10 19:04:32,169 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-07-10 19:04:32,169 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-07-10 19:04:32,169 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-07-10 19:04:32,170 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-07-10 19:04:32,170 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-07-10 19:04:32,170 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-10 19:04:32,170 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-07-10 19:04:32,170 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-07-10 19:04:32,171 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-10 19:04:32,171 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-07-10 19:04:32,171 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-07-10 19:04:32,171 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-07-10 19:04:32,171 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-07-10 19:04:32,171 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-07-10 19:04:32,172 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-10 19:04:32,172 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-07-10 19:04:32,172 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-07-10 19:04:32,172 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-07-10 19:04:32,172 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-10 19:04:32,172 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-07-10 19:04:32,172 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-07-10 19:04:32,173 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-07-10 19:04:32,173 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-07-10 19:04:32,173 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-07-10 19:04:32,173 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-07-10 19:04:32,173 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-07-10 19:04:32,174 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-07-10 19:04:32,175 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-07-10 19:04:32,175 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-07-10 19:04:32,175 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-07-10 19:04:32,175 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-07-10 19:04:32,175 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-07-10 19:04:32,176 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-07-10 19:04:32,176 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-07-10 19:04:32,176 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-07-10 19:04:32,177 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-07-10 19:04:32,177 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-07-10 19:04:32,177 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-07-10 19:04:32,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-07-10 19:04:32,178 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-07-10 19:04:32,179 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-07-10 19:04:32,179 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-07-10 19:04:32,179 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-07-10 19:04:32,179 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-07-10 19:04:32,179 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-07-10 19:04:32,179 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-07-10 19:04:32,179 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-07-10 19:04:32,180 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-07-10 19:04:32,180 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-07-10 19:04:32,180 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-07-10 19:04:32,181 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-07-10 19:04:32,181 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-07-10 19:04:32,181 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-07-10 19:04:32,181 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-07-10 19:04:32,181 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-07-10 19:04:32,181 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-07-10 19:04:32,181 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-07-10 19:04:32,182 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-07-10 19:04:32,182 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-10 19:04:32,182 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-10 19:04:32,182 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-10 19:04:32,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-10 19:04:32,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-10 19:04:32,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-10 19:04:32,183 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-10 19:04:32,183 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-10 19:04:32,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-10 19:04:32,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-10 19:04:32,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-10 19:04:32,859 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-10 19:04:32,859 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-07-10 19:04:32,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 07:04:32 BoogieIcfgContainer [2020-07-10 19:04:32,864 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-10 19:04:32,865 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-10 19:04:32,865 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-10 19:04:32,868 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-10 19:04:32,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.07 07:04:31" (1/3) ... [2020-07-10 19:04:32,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59d11d95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 07:04:32, skipping insertion in model container [2020-07-10 19:04:32,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 07:04:31" (2/3) ... [2020-07-10 19:04:32,870 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59d11d95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 07:04:32, skipping insertion in model container [2020-07-10 19:04:32,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 07:04:32" (3/3) ... [2020-07-10 19:04:32,872 INFO L109 eAbstractionObserver]: Analyzing ICFG sll-simple-white-blue-2.i [2020-07-10 19:04:32,882 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-10 19:04:32,890 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-10 19:04:32,904 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-10 19:04:32,922 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-10 19:04:32,922 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-10 19:04:32,922 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-10 19:04:32,922 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-10 19:04:32,923 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-10 19:04:32,923 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-10 19:04:32,923 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-10 19:04:32,923 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-10 19:04:32,937 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states. [2020-07-10 19:04:32,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-07-10 19:04:32,949 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 19:04:32,950 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-10 19:04:32,951 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 19:04:32,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 19:04:32,957 INFO L82 PathProgramCache]: Analyzing trace with hash -65050132, now seen corresponding path program 1 times [2020-07-10 19:04:32,964 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 19:04:32,964 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1280995023] [2020-07-10 19:04:32,965 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 19:04:33,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 19:04:33,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 19:04:33,207 INFO L280 TraceCheckUtils]: 0: Hoare triple {99#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {92#true} is VALID [2020-07-10 19:04:33,208 INFO L280 TraceCheckUtils]: 1: Hoare triple {92#true} #valid := #valid[0 := 0]; {92#true} is VALID [2020-07-10 19:04:33,208 INFO L280 TraceCheckUtils]: 2: Hoare triple {92#true} assume 0 < #StackHeapBarrier; {92#true} is VALID [2020-07-10 19:04:33,209 INFO L280 TraceCheckUtils]: 3: Hoare triple {92#true} assume true; {92#true} is VALID [2020-07-10 19:04:33,210 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {92#true} {92#true} #170#return; {92#true} is VALID [2020-07-10 19:04:33,213 INFO L263 TraceCheckUtils]: 0: Hoare triple {92#true} call ULTIMATE.init(); {99#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-10 19:04:33,214 INFO L280 TraceCheckUtils]: 1: Hoare triple {99#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {92#true} is VALID [2020-07-10 19:04:33,214 INFO L280 TraceCheckUtils]: 2: Hoare triple {92#true} #valid := #valid[0 := 0]; {92#true} is VALID [2020-07-10 19:04:33,214 INFO L280 TraceCheckUtils]: 3: Hoare triple {92#true} assume 0 < #StackHeapBarrier; {92#true} is VALID [2020-07-10 19:04:33,215 INFO L280 TraceCheckUtils]: 4: Hoare triple {92#true} assume true; {92#true} is VALID [2020-07-10 19:04:33,215 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {92#true} {92#true} #170#return; {92#true} is VALID [2020-07-10 19:04:33,215 INFO L263 TraceCheckUtils]: 6: Hoare triple {92#true} call #t~ret19 := main(); {92#true} is VALID [2020-07-10 19:04:33,216 INFO L280 TraceCheckUtils]: 7: Hoare triple {92#true} SUMMARY for call #t~malloc0.base, #t~malloc0.offset := #Ultimate.allocOnHeap(8); srcloc: mainENTRY {92#true} is VALID [2020-07-10 19:04:33,216 INFO L280 TraceCheckUtils]: 8: Hoare triple {92#true} ~head~0.base, ~head~0.offset := #t~malloc0.base, #t~malloc0.offset; {92#true} is VALID [2020-07-10 19:04:33,217 INFO L280 TraceCheckUtils]: 9: Hoare triple {92#true} SUMMARY for call write~$Pointer$(0, 0, ~head~0.base, ~head~0.offset, 4); srcloc: L989 {92#true} is VALID [2020-07-10 19:04:33,217 INFO L280 TraceCheckUtils]: 10: Hoare triple {92#true} SUMMARY for call write~int(0, ~head~0.base, 4 + ~head~0.offset, 4); srcloc: L989-1 {92#true} is VALID [2020-07-10 19:04:33,217 INFO L280 TraceCheckUtils]: 11: Hoare triple {92#true} ~x~0.base, ~x~0.offset := ~head~0.base, ~head~0.offset; {92#true} is VALID [2020-07-10 19:04:33,218 INFO L280 TraceCheckUtils]: 12: Hoare triple {92#true} assume !true; {93#false} is VALID [2020-07-10 19:04:33,219 INFO L280 TraceCheckUtils]: 13: Hoare triple {93#false} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {93#false} is VALID [2020-07-10 19:04:33,219 INFO L280 TraceCheckUtils]: 14: Hoare triple {93#false} assume 0 != #t~nondet4; {93#false} is VALID [2020-07-10 19:04:33,220 INFO L280 TraceCheckUtils]: 15: Hoare triple {93#false} havoc #t~nondet4; {93#false} is VALID [2020-07-10 19:04:33,220 INFO L280 TraceCheckUtils]: 16: Hoare triple {93#false} SUMMARY for call #t~malloc5.base, #t~malloc5.offset := #Ultimate.allocOnHeap(8); srcloc: L1006 {93#false} is VALID [2020-07-10 19:04:33,220 INFO L280 TraceCheckUtils]: 17: Hoare triple {93#false} ~x~0.base, ~x~0.offset := #t~malloc5.base, #t~malloc5.offset; {93#false} is VALID [2020-07-10 19:04:33,221 INFO L280 TraceCheckUtils]: 18: Hoare triple {93#false} SUMMARY for call write~int(1, ~x~0.base, 4 + ~x~0.offset, 4); srcloc: L1007 {93#false} is VALID [2020-07-10 19:04:33,221 INFO L280 TraceCheckUtils]: 19: Hoare triple {93#false} SUMMARY for call write~$Pointer$(~head~0.base, ~head~0.offset, ~x~0.base, ~x~0.offset, 4); srcloc: L1007-1 {93#false} is VALID [2020-07-10 19:04:33,222 INFO L280 TraceCheckUtils]: 20: Hoare triple {93#false} ~head~0.base, ~head~0.offset := ~x~0.base, ~x~0.offset; {93#false} is VALID [2020-07-10 19:04:33,222 INFO L280 TraceCheckUtils]: 21: Hoare triple {93#false} ~x~0.base, ~x~0.offset := ~head~0.base, ~head~0.offset; {93#false} is VALID [2020-07-10 19:04:33,222 INFO L280 TraceCheckUtils]: 22: Hoare triple {93#false} assume !true; {93#false} is VALID [2020-07-10 19:04:33,223 INFO L280 TraceCheckUtils]: 23: Hoare triple {93#false} SUMMARY for call #t~mem15.base, #t~mem15.offset := read~$Pointer$(~x~0.base, ~x~0.offset, 4); srcloc: L1032-6 {93#false} is VALID [2020-07-10 19:04:33,223 INFO L280 TraceCheckUtils]: 24: Hoare triple {93#false} ~x~0.base, ~x~0.offset := #t~mem15.base, #t~mem15.offset; {93#false} is VALID [2020-07-10 19:04:33,223 INFO L280 TraceCheckUtils]: 25: Hoare triple {93#false} havoc #t~mem15.base, #t~mem15.offset; {93#false} is VALID [2020-07-10 19:04:33,224 INFO L280 TraceCheckUtils]: 26: Hoare triple {93#false} assume !!(~x~0.base != 0 || ~x~0.offset != 0); {93#false} is VALID [2020-07-10 19:04:33,224 INFO L280 TraceCheckUtils]: 27: Hoare triple {93#false} SUMMARY for call #t~mem16 := read~int(~x~0.base, 4 + ~x~0.offset, 4); srcloc: L1041 {93#false} is VALID [2020-07-10 19:04:33,224 INFO L280 TraceCheckUtils]: 28: Hoare triple {93#false} assume 1 != #t~mem16; {93#false} is VALID [2020-07-10 19:04:33,225 INFO L280 TraceCheckUtils]: 29: Hoare triple {93#false} havoc #t~mem16; {93#false} is VALID [2020-07-10 19:04:33,225 INFO L280 TraceCheckUtils]: 30: Hoare triple {93#false} assume !false; {93#false} is VALID [2020-07-10 19:04:33,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-10 19:04:33,231 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-10 19:04:33,233 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1280995023] [2020-07-10 19:04:33,235 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 19:04:33,236 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-10 19:04:33,236 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401815144] [2020-07-10 19:04:33,242 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2020-07-10 19:04:33,245 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 19:04:33,250 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-10 19:04:33,308 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 31 edges. 31 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 19:04:33,308 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-10 19:04:33,308 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-10 19:04:33,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-10 19:04:33,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-10 19:04:33,321 INFO L87 Difference]: Start difference. First operand 89 states. Second operand 3 states. [2020-07-10 19:04:33,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 19:04:33,740 INFO L93 Difference]: Finished difference Result 154 states and 181 transitions. [2020-07-10 19:04:33,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-10 19:04:33,740 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2020-07-10 19:04:33,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 19:04:33,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-10 19:04:33,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 181 transitions. [2020-07-10 19:04:33,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-10 19:04:33,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 181 transitions. [2020-07-10 19:04:33,764 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 181 transitions. [2020-07-10 19:04:34,019 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 181 edges. 181 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 19:04:34,033 INFO L225 Difference]: With dead ends: 154 [2020-07-10 19:04:34,033 INFO L226 Difference]: Without dead ends: 76 [2020-07-10 19:04:34,037 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-10 19:04:34,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-07-10 19:04:34,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2020-07-10 19:04:34,113 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 19:04:34,113 INFO L82 GeneralOperation]: Start isEquivalent. First operand 76 states. Second operand 76 states. [2020-07-10 19:04:34,114 INFO L74 IsIncluded]: Start isIncluded. First operand 76 states. Second operand 76 states. [2020-07-10 19:04:34,114 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 76 states. [2020-07-10 19:04:34,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 19:04:34,122 INFO L93 Difference]: Finished difference Result 76 states and 81 transitions. [2020-07-10 19:04:34,122 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 81 transitions. [2020-07-10 19:04:34,123 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 19:04:34,123 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 19:04:34,124 INFO L74 IsIncluded]: Start isIncluded. First operand 76 states. Second operand 76 states. [2020-07-10 19:04:34,124 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 76 states. [2020-07-10 19:04:34,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 19:04:34,131 INFO L93 Difference]: Finished difference Result 76 states and 81 transitions. [2020-07-10 19:04:34,131 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 81 transitions. [2020-07-10 19:04:34,133 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 19:04:34,133 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 19:04:34,133 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 19:04:34,133 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 19:04:34,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-07-10 19:04:34,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 81 transitions. [2020-07-10 19:04:34,140 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 81 transitions. Word has length 31 [2020-07-10 19:04:34,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 19:04:34,141 INFO L479 AbstractCegarLoop]: Abstraction has 76 states and 81 transitions. [2020-07-10 19:04:34,141 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-10 19:04:34,141 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 76 states and 81 transitions. [2020-07-10 19:04:34,251 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 81 edges. 81 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 19:04:34,251 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 81 transitions. [2020-07-10 19:04:34,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-07-10 19:04:34,253 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 19:04:34,253 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-10 19:04:34,254 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-10 19:04:34,254 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 19:04:34,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 19:04:34,254 INFO L82 PathProgramCache]: Analyzing trace with hash 30028786, now seen corresponding path program 1 times [2020-07-10 19:04:34,255 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 19:04:34,255 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2115049055] [2020-07-10 19:04:34,255 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 19:04:34,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-10 19:04:34,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-10 19:04:34,403 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-10 19:04:34,404 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-10 19:04:34,404 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-10 19:04:34,405 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-10 19:04:34,421 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2020-07-10 19:04:34,421 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-10 19:04:34,422 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-10 19:04:34,422 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-10 19:04:34,422 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-10 19:04:34,422 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-10 19:04:34,422 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-10 19:04:34,422 WARN L170 areAnnotationChecker]: L988 has no Hoare annotation [2020-07-10 19:04:34,422 WARN L170 areAnnotationChecker]: L-1-1 has no Hoare annotation [2020-07-10 19:04:34,422 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-10 19:04:34,423 WARN L170 areAnnotationChecker]: L989 has no Hoare annotation [2020-07-10 19:04:34,423 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-10 19:04:34,423 WARN L170 areAnnotationChecker]: L989-1 has no Hoare annotation [2020-07-10 19:04:34,426 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-10 19:04:34,426 WARN L170 areAnnotationChecker]: L990 has no Hoare annotation [2020-07-10 19:04:34,427 WARN L170 areAnnotationChecker]: L1001 has no Hoare annotation [2020-07-10 19:04:34,427 WARN L170 areAnnotationChecker]: L1001 has no Hoare annotation [2020-07-10 19:04:34,427 WARN L170 areAnnotationChecker]: L995-5 has no Hoare annotation [2020-07-10 19:04:34,427 WARN L170 areAnnotationChecker]: L995-1 has no Hoare annotation [2020-07-10 19:04:34,427 WARN L170 areAnnotationChecker]: L995-1 has no Hoare annotation [2020-07-10 19:04:34,427 WARN L170 areAnnotationChecker]: L1005 has no Hoare annotation [2020-07-10 19:04:34,427 WARN L170 areAnnotationChecker]: L1005 has no Hoare annotation [2020-07-10 19:04:34,428 WARN L170 areAnnotationChecker]: L995-2 has no Hoare annotation [2020-07-10 19:04:34,428 WARN L170 areAnnotationChecker]: L995-4 has no Hoare annotation [2020-07-10 19:04:34,428 WARN L170 areAnnotationChecker]: L1005-1 has no Hoare annotation [2020-07-10 19:04:34,428 WARN L170 areAnnotationChecker]: L1005-3 has no Hoare annotation [2020-07-10 19:04:34,430 WARN L170 areAnnotationChecker]: L998 has no Hoare annotation [2020-07-10 19:04:34,430 WARN L170 areAnnotationChecker]: L1006 has no Hoare annotation [2020-07-10 19:04:34,431 WARN L170 areAnnotationChecker]: L1014 has no Hoare annotation [2020-07-10 19:04:34,431 WARN L170 areAnnotationChecker]: L998-1 has no Hoare annotation [2020-07-10 19:04:34,431 WARN L170 areAnnotationChecker]: L1006-1 has no Hoare annotation [2020-07-10 19:04:34,431 WARN L170 areAnnotationChecker]: L1015-5 has no Hoare annotation [2020-07-10 19:04:34,431 WARN L170 areAnnotationChecker]: L1015-5 has no Hoare annotation [2020-07-10 19:04:34,431 WARN L170 areAnnotationChecker]: L998-2 has no Hoare annotation [2020-07-10 19:04:34,431 WARN L170 areAnnotationChecker]: L1007 has no Hoare annotation [2020-07-10 19:04:34,432 WARN L170 areAnnotationChecker]: L1015-6 has no Hoare annotation [2020-07-10 19:04:34,432 WARN L170 areAnnotationChecker]: L1015-1 has no Hoare annotation [2020-07-10 19:04:34,432 WARN L170 areAnnotationChecker]: L1015-1 has no Hoare annotation [2020-07-10 19:04:34,432 WARN L170 areAnnotationChecker]: L999 has no Hoare annotation [2020-07-10 19:04:34,432 WARN L170 areAnnotationChecker]: L1007-1 has no Hoare annotation [2020-07-10 19:04:34,432 WARN L170 areAnnotationChecker]: L1022 has no Hoare annotation [2020-07-10 19:04:34,432 WARN L170 areAnnotationChecker]: L1015-2 has no Hoare annotation [2020-07-10 19:04:34,433 WARN L170 areAnnotationChecker]: L1015-4 has no Hoare annotation [2020-07-10 19:04:34,433 WARN L170 areAnnotationChecker]: L999-1 has no Hoare annotation [2020-07-10 19:04:34,433 WARN L170 areAnnotationChecker]: L1008 has no Hoare annotation [2020-07-10 19:04:34,433 WARN L170 areAnnotationChecker]: L1022-1 has no Hoare annotation [2020-07-10 19:04:34,436 WARN L170 areAnnotationChecker]: L1017 has no Hoare annotation [2020-07-10 19:04:34,436 WARN L170 areAnnotationChecker]: L1000 has no Hoare annotation [2020-07-10 19:04:34,437 WARN L170 areAnnotationChecker]: L1005-4 has no Hoare annotation [2020-07-10 19:04:34,437 WARN L170 areAnnotationChecker]: L1023 has no Hoare annotation [2020-07-10 19:04:34,437 WARN L170 areAnnotationChecker]: L1017-1 has no Hoare annotation [2020-07-10 19:04:34,437 WARN L170 areAnnotationChecker]: L1017-1 has no Hoare annotation [2020-07-10 19:04:34,437 WARN L170 areAnnotationChecker]: L1000-1 has no Hoare annotation [2020-07-10 19:04:34,437 WARN L170 areAnnotationChecker]: L1032-5 has no Hoare annotation [2020-07-10 19:04:34,437 WARN L170 areAnnotationChecker]: L1032-5 has no Hoare annotation [2020-07-10 19:04:34,437 WARN L170 areAnnotationChecker]: L1023-1 has no Hoare annotation [2020-07-10 19:04:34,438 WARN L170 areAnnotationChecker]: L1017-2 has no Hoare annotation [2020-07-10 19:04:34,438 WARN L170 areAnnotationChecker]: L1017-4 has no Hoare annotation [2020-07-10 19:04:34,438 WARN L170 areAnnotationChecker]: L1032-6 has no Hoare annotation [2020-07-10 19:04:34,438 WARN L170 areAnnotationChecker]: L1032-1 has no Hoare annotation [2020-07-10 19:04:34,438 WARN L170 areAnnotationChecker]: L1032-1 has no Hoare annotation [2020-07-10 19:04:34,438 WARN L170 areAnnotationChecker]: L1023-2 has no Hoare annotation [2020-07-10 19:04:34,438 WARN L170 areAnnotationChecker]: L1018 has no Hoare annotation [2020-07-10 19:04:34,438 WARN L170 areAnnotationChecker]: L1038 has no Hoare annotation [2020-07-10 19:04:34,439 WARN L170 areAnnotationChecker]: L1032-2 has no Hoare annotation [2020-07-10 19:04:34,439 WARN L170 areAnnotationChecker]: L1032-4 has no Hoare annotation [2020-07-10 19:04:34,439 WARN L170 areAnnotationChecker]: L1024 has no Hoare annotation [2020-07-10 19:04:34,439 WARN L170 areAnnotationChecker]: L1018-1 has no Hoare annotation [2020-07-10 19:04:34,439 WARN L170 areAnnotationChecker]: L1038-1 has no Hoare annotation [2020-07-10 19:04:34,439 WARN L170 areAnnotationChecker]: L1034 has no Hoare annotation [2020-07-10 19:04:34,439 WARN L170 areAnnotationChecker]: L1024-1 has no Hoare annotation [2020-07-10 19:04:34,439 WARN L170 areAnnotationChecker]: L1018-2 has no Hoare annotation [2020-07-10 19:04:34,440 WARN L170 areAnnotationChecker]: L1039-2 has no Hoare annotation [2020-07-10 19:04:34,440 WARN L170 areAnnotationChecker]: L1039-2 has no Hoare annotation [2020-07-10 19:04:34,440 WARN L170 areAnnotationChecker]: L1039-2 has no Hoare annotation [2020-07-10 19:04:34,440 WARN L170 areAnnotationChecker]: L1034-1 has no Hoare annotation [2020-07-10 19:04:34,440 WARN L170 areAnnotationChecker]: L1025 has no Hoare annotation [2020-07-10 19:04:34,440 WARN L170 areAnnotationChecker]: L1039-3 has no Hoare annotation [2020-07-10 19:04:34,440 WARN L170 areAnnotationChecker]: L1041 has no Hoare annotation [2020-07-10 19:04:34,440 WARN L170 areAnnotationChecker]: L1034-2 has no Hoare annotation [2020-07-10 19:04:34,441 WARN L170 areAnnotationChecker]: L1025-1 has no Hoare annotation [2020-07-10 19:04:34,441 WARN L170 areAnnotationChecker]: L1052-1 has no Hoare annotation [2020-07-10 19:04:34,441 WARN L170 areAnnotationChecker]: L1052-1 has no Hoare annotation [2020-07-10 19:04:34,441 WARN L170 areAnnotationChecker]: L1052-1 has no Hoare annotation [2020-07-10 19:04:34,441 WARN L170 areAnnotationChecker]: L1041-1 has no Hoare annotation [2020-07-10 19:04:34,441 WARN L170 areAnnotationChecker]: L1041-1 has no Hoare annotation [2020-07-10 19:04:34,441 WARN L170 areAnnotationChecker]: L1025-2 has no Hoare annotation [2020-07-10 19:04:34,441 WARN L170 areAnnotationChecker]: L1048-2 has no Hoare annotation [2020-07-10 19:04:34,442 WARN L170 areAnnotationChecker]: L1050 has no Hoare annotation [2020-07-10 19:04:34,442 WARN L170 areAnnotationChecker]: L1041-2 has no Hoare annotation [2020-07-10 19:04:34,442 WARN L170 areAnnotationChecker]: L1041-3 has no Hoare annotation [2020-07-10 19:04:34,442 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-10 19:04:34,442 WARN L170 areAnnotationChecker]: L1051 has no Hoare annotation [2020-07-10 19:04:34,442 WARN L170 areAnnotationChecker]: L1042-3 has no Hoare annotation [2020-07-10 19:04:34,442 WARN L170 areAnnotationChecker]: L1042-3 has no Hoare annotation [2020-07-10 19:04:34,443 WARN L170 areAnnotationChecker]: L1042-3 has no Hoare annotation [2020-07-10 19:04:34,443 WARN L170 areAnnotationChecker]: L1042-3 has no Hoare annotation [2020-07-10 19:04:34,443 WARN L170 areAnnotationChecker]: L1041-4 has no Hoare annotation [2020-07-10 19:04:34,443 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-10 19:04:34,443 WARN L170 areAnnotationChecker]: L1051-1 has no Hoare annotation [2020-07-10 19:04:34,443 WARN L170 areAnnotationChecker]: L1042-2 has no Hoare annotation [2020-07-10 19:04:34,443 WARN L170 areAnnotationChecker]: L1042-2 has no Hoare annotation [2020-07-10 19:04:34,443 WARN L170 areAnnotationChecker]: L1043 has no Hoare annotation [2020-07-10 19:04:34,444 WARN L170 areAnnotationChecker]: L1051-2 has no Hoare annotation [2020-07-10 19:04:34,444 WARN L170 areAnnotationChecker]: L1043-1 has no Hoare annotation [2020-07-10 19:04:34,444 WARN L170 areAnnotationChecker]: L1052 has no Hoare annotation [2020-07-10 19:04:34,444 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-10 19:04:34,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.07 07:04:34 BoogieIcfgContainer [2020-07-10 19:04:34,447 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-10 19:04:34,451 INFO L168 Benchmark]: Toolchain (without parser) took 3165.18 ms. Allocated memory was 138.4 MB in the beginning and 249.0 MB in the end (delta: 110.6 MB). Free memory was 102.7 MB in the beginning and 190.5 MB in the end (delta: -87.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 7.1 GB. [2020-07-10 19:04:34,452 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 138.4 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-10 19:04:34,453 INFO L168 Benchmark]: CACSL2BoogieTranslator took 684.86 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 102.5 MB in the beginning and 168.1 MB in the end (delta: -65.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. [2020-07-10 19:04:34,454 INFO L168 Benchmark]: Boogie Preprocessor took 112.73 ms. Allocated memory is still 202.4 MB. Free memory was 168.1 MB in the beginning and 164.6 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. [2020-07-10 19:04:34,454 INFO L168 Benchmark]: RCFGBuilder took 777.79 ms. Allocated memory is still 202.4 MB. Free memory was 164.6 MB in the beginning and 98.4 MB in the end (delta: 66.2 MB). Peak memory consumption was 66.2 MB. Max. memory is 7.1 GB. [2020-07-10 19:04:34,455 INFO L168 Benchmark]: TraceAbstraction took 1582.64 ms. Allocated memory was 202.4 MB in the beginning and 249.0 MB in the end (delta: 46.7 MB). Free memory was 98.4 MB in the beginning and 190.5 MB in the end (delta: -92.1 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-07-10 19:04:34,459 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 138.4 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 684.86 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 102.5 MB in the beginning and 168.1 MB in the end (delta: -65.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 112.73 ms. Allocated memory is still 202.4 MB. Free memory was 168.1 MB in the beginning and 164.6 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 777.79 ms. Allocated memory is still 202.4 MB. Free memory was 164.6 MB in the beginning and 98.4 MB in the end (delta: 66.2 MB). Peak memory consumption was 66.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1582.64 ms. Allocated memory was 202.4 MB in the beginning and 249.0 MB in the end (delta: 46.7 MB). Free memory was 98.4 MB in the beginning and 190.5 MB in the end (delta: -92.1 MB). There was no memory consumed. 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; [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 [L1029] x = head [L1032] EXPR x->data [L1032] COND FALSE !(x->data != 1) [L1038] EXPR x->next [L1038] x = x->next [L1039] COND TRUE \read(*x) [L1041] EXPR x->data [L1041] COND TRUE x->data != 1 [L1042] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 89 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 93 SDtfs, 0 SDslu, 5 SDs, 0 SdLazy, 88 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=89occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...