java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/SifaC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --sifa.abstract.domain ExplicitValueDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.intern.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_DDA -i ../../../trunk/examples/svcomp/list-simple/sll2n_update_all.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-16 18:16:17,200 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-16 18:16:17,202 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-16 18:16:17,215 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-16 18:16:17,215 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-16 18:16:17,216 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-16 18:16:17,218 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-16 18:16:17,219 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-16 18:16:17,221 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-16 18:16:17,222 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-16 18:16:17,223 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-16 18:16:17,224 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-16 18:16:17,225 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-16 18:16:17,226 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-16 18:16:17,227 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-16 18:16:17,228 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-16 18:16:17,228 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-16 18:16:17,229 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-16 18:16:17,231 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-16 18:16:17,233 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-16 18:16:17,234 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-16 18:16:17,235 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-16 18:16:17,236 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-16 18:16:17,237 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-16 18:16:17,239 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-16 18:16:17,239 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-16 18:16:17,240 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-16 18:16:17,241 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-16 18:16:17,241 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-16 18:16:17,242 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-16 18:16:17,242 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-16 18:16:17,243 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-16 18:16:17,244 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-16 18:16:17,244 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-16 18:16:17,245 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-16 18:16:17,246 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-16 18:16:17,246 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-16 18:16:17,247 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-16 18:16:17,247 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-16 18:16:17,248 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-16 18:16:17,248 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-16 18:16:17,249 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-09-16 18:16:17,264 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-16 18:16:17,265 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-16 18:16:17,266 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-16 18:16:17,266 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-16 18:16:17,267 INFO L138 SettingsManager]: * Use SBE=true [2019-09-16 18:16:17,267 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-16 18:16:17,267 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-16 18:16:17,267 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-16 18:16:17,268 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-16 18:16:17,268 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-16 18:16:17,268 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-16 18:16:17,268 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-16 18:16:17,268 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-16 18:16:17,269 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-16 18:16:17,269 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-16 18:16:17,269 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-16 18:16:17,269 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-16 18:16:17,269 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-16 18:16:17,270 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-16 18:16:17,270 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-16 18:16:17,270 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-16 18:16:17,270 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 18:16:17,270 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-16 18:16:17,271 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-16 18:16:17,271 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-16 18:16:17,271 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-16 18:16:17,271 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-16 18:16:17,271 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-16 18:16:17,272 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> ExplicitValueDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Intern Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_DDA [2019-09-16 18:16:17,304 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-16 18:16:17,317 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-16 18:16:17,321 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-16 18:16:17,323 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-16 18:16:17,323 INFO L275 PluginConnector]: CDTParser initialized [2019-09-16 18:16:17,324 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/sll2n_update_all.i [2019-09-16 18:16:17,412 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b18b50a34/c381e2709cb94326a2b04871d03bbb45/FLAG6cdc28b9d [2019-09-16 18:16:18,024 INFO L306 CDTParser]: Found 1 translation units. [2019-09-16 18:16:18,024 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-simple/sll2n_update_all.i [2019-09-16 18:16:18,042 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b18b50a34/c381e2709cb94326a2b04871d03bbb45/FLAG6cdc28b9d [2019-09-16 18:16:18,278 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b18b50a34/c381e2709cb94326a2b04871d03bbb45 [2019-09-16 18:16:18,290 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-16 18:16:18,291 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-16 18:16:18,293 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-16 18:16:18,293 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-16 18:16:18,297 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-16 18:16:18,298 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 06:16:18" (1/1) ... [2019-09-16 18:16:18,301 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@485b3978 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 06:16:18, skipping insertion in model container [2019-09-16 18:16:18,301 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 06:16:18" (1/1) ... [2019-09-16 18:16:18,309 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-16 18:16:18,372 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-16 18:16:18,872 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 18:16:18,886 INFO L188 MainTranslator]: Completed pre-run [2019-09-16 18:16:18,941 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 18:16:19,006 INFO L192 MainTranslator]: Completed translation [2019-09-16 18:16:19,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 06:16:19 WrapperNode [2019-09-16 18:16:19,007 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-16 18:16:19,008 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-16 18:16:19,008 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-16 18:16:19,008 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-16 18:16:19,022 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 06:16:19" (1/1) ... [2019-09-16 18:16:19,022 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 06:16:19" (1/1) ... [2019-09-16 18:16:19,043 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 06:16:19" (1/1) ... [2019-09-16 18:16:19,043 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 06:16:19" (1/1) ... [2019-09-16 18:16:19,061 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 06:16:19" (1/1) ... [2019-09-16 18:16:19,068 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 06:16:19" (1/1) ... [2019-09-16 18:16:19,072 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 06:16:19" (1/1) ... [2019-09-16 18:16:19,079 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-16 18:16:19,080 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-16 18:16:19,080 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-16 18:16:19,080 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-16 18:16:19,081 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 06:16:19" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 18:16:19,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-16 18:16:19,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-16 18:16:19,146 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-09-16 18:16:19,146 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-09-16 18:16:19,146 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-09-16 18:16:19,146 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2019-09-16 18:16:19,147 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_create [2019-09-16 18:16:19,147 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_destroy [2019-09-16 18:16:19,147 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_get_data_at [2019-09-16 18:16:19,147 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_update_at [2019-09-16 18:16:19,149 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-16 18:16:19,150 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-16 18:16:19,150 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-09-16 18:16:19,150 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-09-16 18:16:19,150 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-09-16 18:16:19,150 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-09-16 18:16:19,151 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-09-16 18:16:19,151 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-09-16 18:16:19,151 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-09-16 18:16:19,151 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-09-16 18:16:19,152 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-09-16 18:16:19,152 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-09-16 18:16:19,152 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-09-16 18:16:19,153 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-09-16 18:16:19,153 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-09-16 18:16:19,155 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-09-16 18:16:19,156 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-09-16 18:16:19,157 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-09-16 18:16:19,157 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-09-16 18:16:19,157 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-09-16 18:16:19,158 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-09-16 18:16:19,158 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-09-16 18:16:19,158 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-09-16 18:16:19,159 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-09-16 18:16:19,159 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-09-16 18:16:19,159 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-09-16 18:16:19,159 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-09-16 18:16:19,159 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-09-16 18:16:19,159 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-09-16 18:16:19,159 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-09-16 18:16:19,159 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-09-16 18:16:19,160 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-09-16 18:16:19,160 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-09-16 18:16:19,160 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-09-16 18:16:19,160 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-09-16 18:16:19,160 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-09-16 18:16:19,160 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-09-16 18:16:19,161 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-09-16 18:16:19,161 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-09-16 18:16:19,161 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-09-16 18:16:19,161 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-09-16 18:16:19,161 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-09-16 18:16:19,161 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-09-16 18:16:19,161 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-09-16 18:16:19,162 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-09-16 18:16:19,162 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-09-16 18:16:19,162 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-09-16 18:16:19,162 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-09-16 18:16:19,162 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-09-16 18:16:19,162 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-09-16 18:16:19,163 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-09-16 18:16:19,163 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-09-16 18:16:19,163 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-09-16 18:16:19,163 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-09-16 18:16:19,163 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-16 18:16:19,163 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-16 18:16:19,163 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-09-16 18:16:19,164 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-16 18:16:19,164 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-09-16 18:16:19,164 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-09-16 18:16:19,164 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-09-16 18:16:19,164 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-09-16 18:16:19,164 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-09-16 18:16:19,165 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-09-16 18:16:19,165 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-09-16 18:16:19,165 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-09-16 18:16:19,165 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-09-16 18:16:19,165 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-09-16 18:16:19,165 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-09-16 18:16:19,166 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-09-16 18:16:19,166 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-09-16 18:16:19,166 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-09-16 18:16:19,166 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-09-16 18:16:19,166 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-09-16 18:16:19,166 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-09-16 18:16:19,166 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-09-16 18:16:19,167 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-09-16 18:16:19,167 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-09-16 18:16:19,167 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-09-16 18:16:19,167 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-09-16 18:16:19,167 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-09-16 18:16:19,167 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-09-16 18:16:19,168 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-09-16 18:16:19,168 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-09-16 18:16:19,168 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-09-16 18:16:19,168 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-09-16 18:16:19,168 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-09-16 18:16:19,168 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-09-16 18:16:19,168 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-09-16 18:16:19,169 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-09-16 18:16:19,169 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-09-16 18:16:19,169 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-09-16 18:16:19,169 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-09-16 18:16:19,169 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-09-16 18:16:19,169 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-09-16 18:16:19,169 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-09-16 18:16:19,170 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-09-16 18:16:19,170 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-09-16 18:16:19,170 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-09-16 18:16:19,170 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-09-16 18:16:19,170 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-09-16 18:16:19,170 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-09-16 18:16:19,170 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-09-16 18:16:19,171 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-09-16 18:16:19,171 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-09-16 18:16:19,171 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-09-16 18:16:19,171 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-09-16 18:16:19,171 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-09-16 18:16:19,171 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2019-09-16 18:16:19,171 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-16 18:16:19,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-16 18:16:19,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-16 18:16:19,172 INFO L130 BoogieDeclarations]: Found specification of procedure sll_create [2019-09-16 18:16:19,172 INFO L130 BoogieDeclarations]: Found specification of procedure sll_destroy [2019-09-16 18:16:19,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-16 18:16:19,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-16 18:16:19,173 INFO L130 BoogieDeclarations]: Found specification of procedure sll_get_data_at [2019-09-16 18:16:19,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-16 18:16:19,173 INFO L130 BoogieDeclarations]: Found specification of procedure sll_update_at [2019-09-16 18:16:19,173 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-16 18:16:19,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-16 18:16:19,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-16 18:16:19,557 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-09-16 18:16:19,843 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-16 18:16:19,844 INFO L283 CfgBuilder]: Removed 6 assume(true) statements. [2019-09-16 18:16:19,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 06:16:19 BoogieIcfgContainer [2019-09-16 18:16:19,846 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-16 18:16:19,847 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-16 18:16:19,847 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-16 18:16:19,848 INFO L275 PluginConnector]: Sifa initialized [2019-09-16 18:16:19,849 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 06:16:19" (1/1) ... [2019-09-16 18:16:19,850 INFO L79 SifaObserver]: Intern domains=ExplicitValueDomain;IntervalDomain ♦ Abstract Domain=ExplicitValueDomain ♦ Abstract when formula's dag size exceeds (negative numbers disable this limit)=-1 ♦ Fluid=SizeLimitFluid ♦ Max. Parallel Explicit Values=2 ♦ Max. Parallel Intervals=2 ♦ Loop Summarizer=FixpointLoopSummarizer ♦ Abstract when formula has more disjuncts than (negative numbers disable this limit)=8 ♦ Call Summarizer=TopInputCallSummarizer ♦ Xnf Conversion Technique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION ♦ Simplification Technique=SIMPLIFY_DDA ♦ Intern Fluid=SizeLimitFluid [2019-09-16 18:16:19,884 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-16 18:16:19,884 INFO L169 IcfgInterpreter]: Building call graph [2019-09-16 18:16:19,897 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-16 18:16:19,906 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-16 18:16:19,908 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-16 18:16:20,077 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 23 for LOIs [2019-09-16 18:16:20,189 WARN L98 DagInterpreter]: A function never reaches its return [2019-09-16 18:16:21,260 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 69 [2019-09-16 18:16:21,392 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2019-09-16 18:16:21,715 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2019-09-16 18:16:21,952 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2019-09-16 18:16:22,130 WARN L191 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2019-09-16 18:16:22,291 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2019-09-16 18:16:22,418 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2019-09-16 18:16:22,543 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2019-09-16 18:16:22,749 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2019-09-16 18:16:22,861 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2019-09-16 18:16:23,077 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2019-09-16 18:16:23,881 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2019-09-16 18:16:24,084 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2019-09-16 18:16:24,315 WARN L191 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2019-09-16 18:16:25,399 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2019-09-16 18:16:25,879 INFO L183 IcfgInterpreter]: Interpretation finished [2019-09-16 18:16:25,880 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-09-16 18:16:25,882 INFO L193 IcfgInterpreter]: Reachable states at location mainErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 168#(exists ((v_prenex_16 Int) (v_sll_get_data_at_~head.offset_BEFORE_RETURN_2 Int) (v_prenex_15 Int) (v_prenex_17 Int) (v_prenex_12 Int) (v_prenex_14 Int) (v_prenex_13 Int) (v_sll_get_data_at_~head.offset_BEFORE_RETURN_1 Int) (v_prenex_4 Int) (v_prenex_5 Int) (v_sll_get_data_at_~head.base_BEFORE_RETURN_2 Int) (v_sll_get_data_at_~head.base_BEFORE_RETURN_1 Int)) (or (and (= (+ main_~i~0 main_~len~0) (+ (select (select |#memory_int| v_prenex_4) v_prenex_5) 1)) (= 0 |#NULL.base|) (= (+ main_~i~0 main_~len~0) main_~expected~0) (= (+ main_~len~0 1) main_~new_data~0) (<= (select (select |#memory_int| v_prenex_15) v_prenex_14) 2147483647) (<= main_~len~0 2) (= main_~data~0 1) (not (= (select (select |#memory_int| v_prenex_15) v_prenex_14) main_~expected~0)) (= 0 (select |old(#valid)| 0)) (<= 0 (+ (select (select |#memory_int| v_prenex_15) v_prenex_14) 2147483648)) (<= (+ main_~i~0 main_~len~0) 2147483648) (<= 0 (+ main_~i~0 main_~len~0 2147483647)) (< main_~i~0 (+ main_~len~0 1)) (< main_~i~0 main_~len~0) (= |#NULL.offset| 0) (= (+ main_~i~0 (- 1)) 0) (= main_~len~0 2)) (and (<= 0 (+ (select (select |#memory_int| v_prenex_12) v_prenex_13) 2147483648)) (= (+ main_~i~0 main_~len~0) main_~expected~0) (= 0 |#NULL.base|) (= (+ main_~len~0 1) main_~new_data~0) (<= main_~len~0 2) (= main_~data~0 1) (= 0 (select |old(#valid)| 0)) (<= (select (select |#memory_int| v_prenex_12) v_prenex_13) 2147483647) (< main_~i~0 main_~len~0) (= |#NULL.offset| 0) (not (= (select (select |#memory_int| v_prenex_12) v_prenex_13) main_~expected~0)) (= main_~len~0 2) (= main_~i~0 0)) (and (<= 0 (+ (select (select |#memory_int| v_sll_get_data_at_~head.base_BEFORE_RETURN_2) v_sll_get_data_at_~head.offset_BEFORE_RETURN_2) 2147483648)) (= 0 |#NULL.base|) (= (+ main_~i~0 main_~len~0) main_~expected~0) (<= (select (select |#memory_int| v_sll_get_data_at_~head.base_BEFORE_RETURN_2) v_sll_get_data_at_~head.offset_BEFORE_RETURN_2) 2147483647) (= main_~new_data~0 main_~len~0) (<= (* 2 main_~len~0) (+ main_~new_data~0 1)) (= main_~data~0 1) (= 0 (select |old(#valid)| 0)) (<= (+ main_~i~0 main_~len~0) 2147483648) (<= 0 (+ main_~i~0 main_~len~0 2147483647)) (= (+ (select (select |#memory_int| v_prenex_17) v_prenex_16) 1) (+ main_~i~0 main_~len~0)) (not (= main_~expected~0 (select (select |#memory_int| v_sll_get_data_at_~head.base_BEFORE_RETURN_2) v_sll_get_data_at_~head.offset_BEFORE_RETURN_2))) (< main_~i~0 (+ main_~len~0 1)) (< main_~i~0 main_~len~0) (= |#NULL.offset| 0) (= (+ main_~i~0 (- 1)) 0) (= main_~len~0 2)) (and (not (= (select (select |#memory_int| v_sll_get_data_at_~head.base_BEFORE_RETURN_1) v_sll_get_data_at_~head.offset_BEFORE_RETURN_1) main_~expected~0)) (= 0 |#NULL.base|) (= (+ main_~i~0 main_~len~0) main_~expected~0) (= main_~new_data~0 main_~len~0) (<= 0 (+ (select (select |#memory_int| v_sll_get_data_at_~head.base_BEFORE_RETURN_1) v_sll_get_data_at_~head.offset_BEFORE_RETURN_1) 2147483648)) (<= (* 2 main_~len~0) (+ main_~new_data~0 1)) (= main_~data~0 1) (= 0 (select |old(#valid)| 0)) (= |#NULL.offset| 0) (< main_~i~0 main_~len~0) (<= (select (select |#memory_int| v_sll_get_data_at_~head.base_BEFORE_RETURN_1) v_sll_get_data_at_~head.offset_BEFORE_RETURN_1) 2147483647) (= main_~len~0 2) (= main_~i~0 0)))) [2019-09-16 18:16:25,898 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-09-16 18:16:25,898 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-09-16 18:16:25,900 INFO L168 Benchmark]: Toolchain (without parser) took 7608.52 ms. Allocated memory was 130.0 MB in the beginning and 337.1 MB in the end (delta: 207.1 MB). Free memory was 84.3 MB in the beginning and 108.7 MB in the end (delta: -24.4 MB). Peak memory consumption was 182.7 MB. Max. memory is 7.1 GB. [2019-09-16 18:16:25,901 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 130.0 MB. Free memory was 104.0 MB in the beginning and 103.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-16 18:16:25,901 INFO L168 Benchmark]: CACSL2BoogieTranslator took 714.80 ms. Allocated memory was 130.0 MB in the beginning and 197.7 MB in the end (delta: 67.6 MB). Free memory was 84.1 MB in the beginning and 158.3 MB in the end (delta: -74.3 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. [2019-09-16 18:16:25,902 INFO L168 Benchmark]: Boogie Preprocessor took 71.47 ms. Allocated memory is still 197.7 MB. Free memory was 158.3 MB in the beginning and 155.1 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 7.1 GB. [2019-09-16 18:16:25,903 INFO L168 Benchmark]: RCFGBuilder took 767.06 ms. Allocated memory is still 197.7 MB. Free memory was 155.1 MB in the beginning and 100.6 MB in the end (delta: 54.5 MB). Peak memory consumption was 54.5 MB. Max. memory is 7.1 GB. [2019-09-16 18:16:25,904 INFO L168 Benchmark]: Sifa took 6051.03 ms. Allocated memory was 197.7 MB in the beginning and 337.1 MB in the end (delta: 139.5 MB). Free memory was 100.6 MB in the beginning and 108.7 MB in the end (delta: -8.1 MB). Peak memory consumption was 131.4 MB. Max. memory is 7.1 GB. [2019-09-16 18:16:25,907 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 130.0 MB. Free memory was 104.0 MB in the beginning and 103.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 714.80 ms. Allocated memory was 130.0 MB in the beginning and 197.7 MB in the end (delta: 67.6 MB). Free memory was 84.1 MB in the beginning and 158.3 MB in the end (delta: -74.3 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 71.47 ms. Allocated memory is still 197.7 MB. Free memory was 158.3 MB in the beginning and 155.1 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 767.06 ms. Allocated memory is still 197.7 MB. Free memory was 155.1 MB in the beginning and 100.6 MB in the end (delta: 54.5 MB). Peak memory consumption was 54.5 MB. Max. memory is 7.1 GB. * Sifa took 6051.03 ms. Allocated memory was 197.7 MB in the beginning and 337.1 MB in the end (delta: 139.5 MB). Free memory was 100.6 MB in the beginning and 108.7 MB in the end (delta: -8.1 MB). Peak memory consumption was 131.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.sifa: - StatisticsResult: Symbolic Interpretation with Fluid Abstractions OVERALL_TIME[ms]: 5998, ICFG_INTERPRETER_ENTERED_PROCEDURES: 2, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 73, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 52, TOOLS_POST_TIME[ms]: 1791, TOOLS_POST_CALL_APPLICATIONS: 15, TOOLS_POST_CALL_TIME[ms]: 89, TOOLS_POST_RETURN_APPLICATIONS: 14, TOOLS_POST_RETURN_TIME[ms]: 784, TOOLS_QUANTIFIERELIM_APPLICATIONS: 81, TOOLS_QUANTIFIERELIM_TIME[ms]: 2618, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 927, FLUID_QUERY_TIME[ms]: 7, FLUID_QUERIES: 91, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 26, DOMAIN_JOIN_TIME[ms]: 1726, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 12, DOMAIN_WIDEN_TIME[ms]: 1449, DOMAIN_ISSUBSETEQ_APPLICATIONS: 18, DOMAIN_ISSUBSETEQ_TIME[ms]: 55, DOMAIN_ISBOTTOM_APPLICATIONS: 2, DOMAIN_ISBOTTOM_TIME[ms]: 10, LOOP_SUMMARIZER_APPLICATIONS: 6, LOOP_SUMMARIZER_CACHE_MISSES: 6, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 5578, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 5577, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 18, CALL_SUMMARIZER_APPLICATIONS: 14, CALL_SUMMARIZER_CACHE_MISSES: 6, CALL_SUMMARIZER_OVERALL_TIME[ms]: 5179, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 5178, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 5, PATH_EXPR_TIME[ms]: 4, REGEX_TO_DAG_TIME[ms]: 3, DAG_COMPRESSION_TIME[ms]: 18, DAG_COMPRESSION_PROCESSED_NODES: 160, DAG_COMPRESSION_RETAINED_NODES: 71 - UnprovableResult [Line: 619]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: Over-approximation of reachable states at this location is 168#(exists ((v_prenex_16 Int) (v_sll_get_data_at_~head.offset_BEFORE_RETURN_2 Int) (v_prenex_15 Int) (v_prenex_17 Int) (v_prenex_12 Int) (v_prenex_14 Int) (v_prenex_13 Int) (v_sll_get_data_at_~head.offset_BEFORE_RETURN_1 Int) (v_prenex_4 Int) (v_prenex_5 Int) (v_sll_get_data_at_~head.base_BEFORE_RETURN_2 Int) (v_sll_get_data_at_~head.base_BEFORE_RETURN_1 Int)) (or (and (= (+ main_~i~0 main_~len~0) (+ (select (select |#memory_int| v_prenex_4) v_prenex_5) 1)) (= 0 |#NULL.base|) (= (+ main_~i~0 main_~len~0) main_~expected~0) (= (+ main_~len~0 1) main_~new_data~0) (<= (select (select |#memory_int| v_prenex_15) v_prenex_14) 2147483647) (<= main_~len~0 2) (= main_~data~0 1) (not (= (select (select |#memory_int| v_prenex_15) v_prenex_14) main_~expected~0)) (= 0 (select |old(#valid)| 0)) (<= 0 (+ (select (select |#memory_int| v_prenex_15) v_prenex_14) 2147483648)) (<= (+ main_~i~0 main_~len~0) 2147483648) (<= 0 (+ main_~i~0 main_~len~0 2147483647)) (< main_~i~0 (+ main_~len~0 1)) (< main_~i~0 main_~len~0) (= |#NULL.offset| 0) (= (+ main_~i~0 (- 1)) 0) (= main_~len~0 2)) (and (<= 0 (+ (select (select |#memory_int| v_prenex_12) v_prenex_13) 2147483648)) (= (+ main_~i~0 main_~len~0) main_~expected~0) (= 0 |#NULL.base|) (= (+ main_~len~0 1) main_~new_data~0) (<= main_~len~0 2) (= main_~data~0 1) (= 0 (select |old(#valid)| 0)) (<= (select (select |#memory_int| v_prenex_12) v_prenex_13) 2147483647) (< main_~i~0 main_~len~0) (= |#NULL.offset| 0) (not (= (select (select |#memory_int| v_prenex_12) v_prenex_13) main_~expected~0)) (= main_~len~0 2) (= main_~i~0 0)) (and (<= 0 (+ (select (select |#memory_int| v_sll_get_data_at_~head.base_BEFORE_RETURN_2) v_sll_get_data_at_~head.offset_BEFORE_RETURN_2) 2147483648)) (= 0 |#NULL.base|) (= (+ main_~i~0 main_~len~0) main_~expected~0) (<= (select (select |#memory_int| v_sll_get_data_at_~head.base_BEFORE_RETURN_2) v_sll_get_data_at_~head.offset_BEFORE_RETURN_2) 2147483647) (= main_~new_data~0 main_~len~0) (<= (* 2 main_~len~0) (+ main_~new_data~0 1)) (= main_~data~0 1) (= 0 (select |old(#valid)| 0)) (<= (+ main_~i~0 main_~len~0) 2147483648) (<= 0 (+ main_~i~0 main_~len~0 2147483647)) (= (+ (select (select |#memory_int| v_prenex_17) v_prenex_16) 1) (+ main_~i~0 main_~len~0)) (not (= main_~expected~0 (select (select |#memory_int| v_sll_get_data_at_~head.base_BEFORE_RETURN_2) v_sll_get_data_at_~head.offset_BEFORE_RETURN_2))) (< main_~i~0 (+ main_~len~0 1)) (< main_~i~0 main_~len~0) (= |#NULL.offset| 0) (= (+ main_~i~0 (- 1)) 0) (= main_~len~0 2)) (and (not (= (select (select |#memory_int| v_sll_get_data_at_~head.base_BEFORE_RETURN_1) v_sll_get_data_at_~head.offset_BEFORE_RETURN_1) main_~expected~0)) (= 0 |#NULL.base|) (= (+ main_~i~0 main_~len~0) main_~expected~0) (= main_~new_data~0 main_~len~0) (<= 0 (+ (select (select |#memory_int| v_sll_get_data_at_~head.base_BEFORE_RETURN_1) v_sll_get_data_at_~head.offset_BEFORE_RETURN_1) 2147483648)) (<= (* 2 main_~len~0) (+ main_~new_data~0 1)) (= main_~data~0 1) (= 0 (select |old(#valid)| 0)) (= |#NULL.offset| 0) (< main_~i~0 main_~len~0) (<= (select (select |#memory_int| v_sll_get_data_at_~head.base_BEFORE_RETURN_1) v_sll_get_data_at_~head.offset_BEFORE_RETURN_1) 2147483647) (= main_~len~0 2) (= main_~i~0 0)))). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...