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 CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.intern.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/forester-heap/sll-queue-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-21 09:54:25,901 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-21 09:54:25,904 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-21 09:54:25,921 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-21 09:54:25,921 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-21 09:54:25,922 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-21 09:54:25,924 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-21 09:54:25,925 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-21 09:54:25,927 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-21 09:54:25,928 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-21 09:54:25,929 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-21 09:54:25,930 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-21 09:54:25,930 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-21 09:54:25,931 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-21 09:54:25,932 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-21 09:54:25,933 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-21 09:54:25,934 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-21 09:54:25,935 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-21 09:54:25,936 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-21 09:54:25,938 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-21 09:54:25,940 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-21 09:54:25,941 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-21 09:54:25,942 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-21 09:54:25,942 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-21 09:54:25,945 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-21 09:54:25,945 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-21 09:54:25,945 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-21 09:54:25,947 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-21 09:54:25,947 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-21 09:54:25,948 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-21 09:54:25,949 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-21 09:54:25,949 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-21 09:54:25,950 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-21 09:54:25,951 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-21 09:54:25,953 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-21 09:54:25,955 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-21 09:54:25,955 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-21 09:54:25,956 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-21 09:54:25,956 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-21 09:54:25,957 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-21 09:54:25,958 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-21 09:54:25,959 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 [2019-09-21 09:54:25,985 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-21 09:54:25,985 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-21 09:54:25,988 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-21 09:54:25,988 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-21 09:54:25,988 INFO L138 SettingsManager]: * Use SBE=true [2019-09-21 09:54:25,988 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-21 09:54:25,988 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-21 09:54:25,989 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-21 09:54:25,989 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-21 09:54:25,989 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-21 09:54:25,990 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-21 09:54:25,990 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-21 09:54:25,990 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-21 09:54:25,991 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-21 09:54:25,991 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-21 09:54:25,991 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-21 09:54:25,991 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-21 09:54:25,992 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-21 09:54:25,992 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-21 09:54:25,992 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-21 09:54:25,992 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-21 09:54:25,993 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-21 09:54:25,993 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-21 09:54:25,993 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-21 09:54:25,993 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-21 09:54:25,994 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-21 09:54:25,994 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-21 09:54:25,994 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-21 09:54:25,994 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain 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_QUICK [2019-09-21 09:54:26,052 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-21 09:54:26,070 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-21 09:54:26,077 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-21 09:54:26,078 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-21 09:54:26,079 INFO L275 PluginConnector]: CDTParser initialized [2019-09-21 09:54:26,079 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/sll-queue-2.i [2019-09-21 09:54:26,158 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c268bff04/d4367bfdd3f343cd81bb55cff32944ec/FLAG363a85cbd [2019-09-21 09:54:26,679 INFO L306 CDTParser]: Found 1 translation units. [2019-09-21 09:54:26,680 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-queue-2.i [2019-09-21 09:54:26,695 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c268bff04/d4367bfdd3f343cd81bb55cff32944ec/FLAG363a85cbd [2019-09-21 09:54:26,947 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c268bff04/d4367bfdd3f343cd81bb55cff32944ec [2019-09-21 09:54:26,956 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-21 09:54:26,957 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-21 09:54:26,958 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-21 09:54:26,958 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-21 09:54:26,961 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-21 09:54:26,962 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 09:54:26" (1/1) ... [2019-09-21 09:54:26,964 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45126d08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:54:26, skipping insertion in model container [2019-09-21 09:54:26,965 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 09:54:26" (1/1) ... [2019-09-21 09:54:26,971 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-21 09:54:27,021 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-21 09:54:27,470 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-21 09:54:27,480 INFO L188 MainTranslator]: Completed pre-run [2019-09-21 09:54:27,531 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-21 09:54:27,582 INFO L192 MainTranslator]: Completed translation [2019-09-21 09:54:27,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:54:27 WrapperNode [2019-09-21 09:54:27,583 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-21 09:54:27,584 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-21 09:54:27,584 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-21 09:54:27,584 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-21 09:54:27,597 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:54:27" (1/1) ... [2019-09-21 09:54:27,597 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:54:27" (1/1) ... [2019-09-21 09:54:27,614 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:54:27" (1/1) ... [2019-09-21 09:54:27,614 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:54:27" (1/1) ... [2019-09-21 09:54:27,634 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:54:27" (1/1) ... [2019-09-21 09:54:27,645 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:54:27" (1/1) ... [2019-09-21 09:54:27,649 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:54:27" (1/1) ... [2019-09-21 09:54:27,656 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-21 09:54:27,657 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-21 09:54:27,657 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-21 09:54:27,657 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-21 09:54:27,658 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:54:27" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-21 09:54:27,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-21 09:54:27,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-21 09:54:27,709 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-21 09:54:27,709 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-09-21 09:54:27,709 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-09-21 09:54:27,710 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-09-21 09:54:27,710 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-09-21 09:54:27,710 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-09-21 09:54:27,710 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-09-21 09:54:27,710 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-09-21 09:54:27,710 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-09-21 09:54:27,711 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-09-21 09:54:27,711 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-09-21 09:54:27,711 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-09-21 09:54:27,711 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-09-21 09:54:27,711 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-09-21 09:54:27,711 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-09-21 09:54:27,712 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-09-21 09:54:27,712 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-09-21 09:54:27,712 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-09-21 09:54:27,712 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-09-21 09:54:27,712 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-09-21 09:54:27,712 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-09-21 09:54:27,713 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-09-21 09:54:27,713 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-09-21 09:54:27,713 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-09-21 09:54:27,713 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-09-21 09:54:27,713 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-09-21 09:54:27,713 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-09-21 09:54:27,714 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-09-21 09:54:27,714 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-09-21 09:54:27,714 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-09-21 09:54:27,714 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-09-21 09:54:27,714 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-09-21 09:54:27,714 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-09-21 09:54:27,715 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-09-21 09:54:27,715 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-09-21 09:54:27,715 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-09-21 09:54:27,715 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-09-21 09:54:27,715 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-09-21 09:54:27,715 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-09-21 09:54:27,716 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-09-21 09:54:27,716 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-09-21 09:54:27,716 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-09-21 09:54:27,716 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-09-21 09:54:27,716 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-09-21 09:54:27,716 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-09-21 09:54:27,717 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-09-21 09:54:27,717 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-09-21 09:54:27,717 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-09-21 09:54:27,717 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-09-21 09:54:27,717 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-09-21 09:54:27,717 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-09-21 09:54:27,718 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-21 09:54:27,718 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-21 09:54:27,718 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-09-21 09:54:27,718 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-21 09:54:27,718 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-09-21 09:54:27,718 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-09-21 09:54:27,719 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-09-21 09:54:27,719 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-09-21 09:54:27,719 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-09-21 09:54:27,719 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-09-21 09:54:27,719 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-09-21 09:54:27,719 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-09-21 09:54:27,719 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-09-21 09:54:27,720 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-09-21 09:54:27,720 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-09-21 09:54:27,720 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-09-21 09:54:27,720 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-09-21 09:54:27,720 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-09-21 09:54:27,720 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-09-21 09:54:27,721 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-09-21 09:54:27,721 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-09-21 09:54:27,721 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-09-21 09:54:27,721 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-09-21 09:54:27,721 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-09-21 09:54:27,721 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-09-21 09:54:27,721 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-09-21 09:54:27,722 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-09-21 09:54:27,722 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-09-21 09:54:27,722 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-09-21 09:54:27,722 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-09-21 09:54:27,722 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-09-21 09:54:27,722 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-09-21 09:54:27,723 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-09-21 09:54:27,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-09-21 09:54:27,723 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-09-21 09:54:27,723 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-09-21 09:54:27,723 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-09-21 09:54:27,723 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-09-21 09:54:27,724 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-09-21 09:54:27,724 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-09-21 09:54:27,724 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-09-21 09:54:27,724 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-09-21 09:54:27,724 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-09-21 09:54:27,724 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-09-21 09:54:27,724 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-09-21 09:54:27,725 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-09-21 09:54:27,725 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-09-21 09:54:27,725 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-09-21 09:54:27,725 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-09-21 09:54:27,725 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-09-21 09:54:27,725 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-09-21 09:54:27,725 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-09-21 09:54:27,726 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-09-21 09:54:27,726 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-21 09:54:27,726 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-21 09:54:27,726 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-21 09:54:27,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-21 09:54:27,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-21 09:54:27,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-21 09:54:27,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-21 09:54:27,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-21 09:54:27,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-21 09:54:27,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-21 09:54:27,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-21 09:54:28,527 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-21 09:54:28,528 INFO L283 CfgBuilder]: Removed 31 assume(true) statements. [2019-09-21 09:54:28,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 09:54:28 BoogieIcfgContainer [2019-09-21 09:54:28,529 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-21 09:54:28,530 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-21 09:54:28,530 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-21 09:54:28,530 INFO L275 PluginConnector]: Sifa initialized [2019-09-21 09:54:28,531 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 09:54:28" (1/1) ... [2019-09-21 09:54:28,532 INFO L79 SifaObserver]: Intern domains=ExplicitValueDomain;IntervalDomain ♦ Abstract Domain=CompoundDomain ♦ 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_QUICK ♦ Intern Fluid=SizeLimitFluid [2019-09-21 09:54:28,556 INFO L162 IcfgInterpreter]: Started Sifa with 14 locations of interest [2019-09-21 09:54:28,556 INFO L169 IcfgInterpreter]: Building call graph [2019-09-21 09:54:28,565 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-21 09:54:28,574 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-21 09:54:28,576 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-21 09:54:28,733 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 27 for LOIs [2019-09-21 09:54:49,624 INFO L183 IcfgInterpreter]: Interpretation finished [2019-09-21 09:54:49,626 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-09-21 09:54:49,639 INFO L193 IcfgInterpreter]: Reachable states at location mainErr3ASSERT_VIOLATIONERROR_FUNCTION satisfy 14356#false [2019-09-21 09:54:49,639 INFO L193 IcfgInterpreter]: Reachable states at location mainErr2ASSERT_VIOLATIONERROR_FUNCTION satisfy 7706#(and (= 0 main_~head~0.offset) (<= 0 main_~head~0.base) (= 0 main_~head~0.base) (exists ((v_DerPreprocessor_1 Int)) (or (and (not (= 0 main_~item~0.offset)) (not (= 0 main_~head~0.base))) (and (not (= 0 main_~head~0.offset)) (not (= main_~item~0.base 0))) (and (= (store |old(#memory_$Pointer$.offset)| main_~head~0.base (store (store (select |old(#memory_$Pointer$.offset)| main_~head~0.base) main_~head~0.offset 0) (+ main_~head~0.offset 4) (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4)))) |#memory_$Pointer$.offset|) (= 0 |#NULL.base|) (<= |#NULL.base| 0) (= 0 |main_#t~malloc0.offset|) (= main_~head~0.offset main_~item~0.offset) (= main_~status~0 0) (<= 0 |#NULL.base|) (= |#memory_$Pointer$.base| (store |old(#memory_$Pointer$.base)| main_~head~0.base (store (store (select |old(#memory_$Pointer$.base)| main_~head~0.base) main_~head~0.offset 0) (+ main_~head~0.offset 4) (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4))))) (= main_~item~0.base main_~head~0.base) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (= 0 (select |old(#valid)| 0)) (= (store |old(#memory_int)| main_~head~0.base (store (store (select |old(#memory_int)| main_~head~0.base) main_~head~0.offset v_DerPreprocessor_1) (+ main_~head~0.offset 4) 0)) |#memory_int|) (= |main_#t~malloc0.base| main_~head~0.base) (= main_~head~0.offset |main_#t~malloc0.offset|) (= |#length| (store |old(#length)| |main_#t~malloc0.base| 8)) (= (select |old(#valid)| |main_#t~malloc0.base|) 0) (< |#StackHeapBarrier| |main_#t~malloc0.base|) (not (= |main_#t~malloc0.base| 0)) (= |#NULL.offset| 0) (= (store |old(#valid)| |main_#t~malloc0.base| 1) |#valid|)) (and (not (= main_~item~0.base 0)) (not (= 0 main_~head~0.base))) (and (not (= 0 main_~item~0.offset)) (not (= 0 main_~head~0.offset))))) (<= main_~head~0.offset 0) (<= main_~head~0.base 0) (<= 0 main_~head~0.offset)) [2019-09-21 09:54:49,640 INFO L193 IcfgInterpreter]: Reachable states at location mainErr9ASSERT_VIOLATIONERROR_FUNCTION satisfy 17162#(and (not (= main_~status~0 2)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) 0) (or (not (= 0 main_~head~0.offset)) (not (= 0 main_~head~0.base))) (<= 3 main_~status~0) (<= main_~status~0 3) (= main_~status~0 3) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) [2019-09-21 09:54:49,641 INFO L193 IcfgInterpreter]: Reachable states at location mainErr6ASSERT_VIOLATIONERROR_FUNCTION satisfy 14251#(and (<= 2 main_~status~0) (= main_~status~0 2) (<= main_~status~0 2) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) 0) (or (not (= 0 main_~head~0.offset)) (not (= 0 main_~head~0.base))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) [2019-09-21 09:54:49,642 INFO L193 IcfgInterpreter]: Reachable states at location mainErr11ASSERT_VIOLATIONERROR_FUNCTION satisfy 16727#(and (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) 0) (or (not (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) 0)) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) 0))) (<= 3 main_~status~0) (or (not (= 0 main_~head~0.offset)) (not (= 0 main_~head~0.base))) (<= main_~status~0 3) (or (not (= main_~status~0 2)) (and (<= 2 main_~status~0) (<= main_~status~0 2))) (= main_~status~0 3) (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (or (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) 0)) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))) [2019-09-21 09:54:49,643 INFO L193 IcfgInterpreter]: Reachable states at location mainErr7ASSERT_VIOLATIONERROR_FUNCTION satisfy 17049#(and (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) 0) (<= 2 main_~status~0) (= main_~status~0 2) (<= main_~status~0 2) (or (not (= 0 main_~head~0.offset)) (not (= 0 main_~head~0.base))) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) 0) (or (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) 0)) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))) [2019-09-21 09:54:49,643 INFO L193 IcfgInterpreter]: Reachable states at location mainErr4ASSERT_VIOLATIONERROR_FUNCTION satisfy 14313#(exists ((v_DerPreprocessor_1 Int)) (or (and (not (= 0 main_~item~0.offset)) (= main_~status~0 1) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) 0) (<= main_~status~0 1) (not (= 0 main_~head~0.base)) (<= 1 main_~status~0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (and (not (= 0 main_~head~0.offset)) (= main_~status~0 1) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) 0) (not (= main_~item~0.base 0)) (<= main_~status~0 1) (<= 1 main_~status~0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (and (= (store |old(#memory_$Pointer$.offset)| main_~head~0.base (store (store (select |old(#memory_$Pointer$.offset)| main_~head~0.base) main_~head~0.offset 0) (+ main_~head~0.offset 4) (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4)))) |#memory_$Pointer$.offset|) (= 0 |#NULL.base|) (= 0 |main_#t~malloc0.offset|) (<= 0 |#NULL.base|) (= |#memory_$Pointer$.base| (store |old(#memory_$Pointer$.base)| main_~head~0.base (store (store (select |old(#memory_$Pointer$.base)| main_~head~0.base) main_~head~0.offset 0) (+ main_~head~0.offset 4) (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4))))) (<= 0 |#NULL.offset|) (= (store |old(#memory_int)| main_~head~0.base (store (store (select |old(#memory_int)| main_~head~0.base) main_~head~0.offset v_DerPreprocessor_1) (+ main_~head~0.offset 4) 0)) |#memory_int|) (= |main_#t~malloc0.base| main_~head~0.base) (= |#length| (store |old(#length)| |main_#t~malloc0.base| 8)) (= main_~status~0 1) (< |#StackHeapBarrier| |main_#t~malloc0.base|) (not (= 0 main_~head~0.base)) (not (= |main_#t~malloc0.base| 0)) (<= 1 main_~status~0) (= (store |old(#valid)| |main_#t~malloc0.base| 1) |#valid|) (<= |#NULL.base| 0) (= main_~head~0.offset main_~item~0.offset) (= main_~status~0 0) (= main_~item~0.base main_~head~0.base) (<= |#NULL.offset| 0) (= 0 (select |old(#valid)| 0)) (= main_~head~0.offset |main_#t~malloc0.offset|) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) 0) (<= main_~status~0 1) (= (select |old(#valid)| |main_#t~malloc0.base|) 0) (= |#NULL.offset| 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (and (= (store |old(#memory_$Pointer$.offset)| main_~head~0.base (store (store (select |old(#memory_$Pointer$.offset)| main_~head~0.base) main_~head~0.offset 0) (+ main_~head~0.offset 4) (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4)))) |#memory_$Pointer$.offset|) (= 0 |#NULL.base|) (= 0 |main_#t~malloc0.offset|) (<= 0 |#NULL.base|) (= |#memory_$Pointer$.base| (store |old(#memory_$Pointer$.base)| main_~head~0.base (store (store (select |old(#memory_$Pointer$.base)| main_~head~0.base) main_~head~0.offset 0) (+ main_~head~0.offset 4) (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4))))) (<= 0 |#NULL.offset|) (= (store |old(#memory_int)| main_~head~0.base (store (store (select |old(#memory_int)| main_~head~0.base) main_~head~0.offset v_DerPreprocessor_1) (+ main_~head~0.offset 4) 0)) |#memory_int|) (= |main_#t~malloc0.base| main_~head~0.base) (= |#length| (store |old(#length)| |main_#t~malloc0.base| 8)) (= main_~status~0 1) (< |#StackHeapBarrier| |main_#t~malloc0.base|) (not (= |main_#t~malloc0.base| 0)) (<= 1 main_~status~0) (= (store |old(#valid)| |main_#t~malloc0.base| 1) |#valid|) (<= |#NULL.base| 0) (= main_~head~0.offset main_~item~0.offset) (= main_~status~0 0) (= main_~item~0.base main_~head~0.base) (<= |#NULL.offset| 0) (= 0 (select |old(#valid)| 0)) (not (= 0 main_~head~0.offset)) (= main_~head~0.offset |main_#t~malloc0.offset|) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) 0) (<= main_~status~0 1) (= (select |old(#valid)| |main_#t~malloc0.base|) 0) (= |#NULL.offset| 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (and (= main_~status~0 1) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) 0) (not (= main_~item~0.base 0)) (<= main_~status~0 1) (not (= 0 main_~head~0.base)) (<= 1 main_~status~0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (and (not (= 0 main_~item~0.offset)) (not (= 0 main_~head~0.offset)) (= main_~status~0 1) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) 0) (<= main_~status~0 1) (<= 1 main_~status~0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))) [2019-09-21 09:54:49,644 INFO L193 IcfgInterpreter]: Reachable states at location mainErr10ASSERT_VIOLATIONERROR_FUNCTION satisfy 16858#(and (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) 0) (not (= main_~status~0 2)) (or (not (= 0 main_~head~0.offset)) (not (= 0 main_~head~0.base))) (<= 3 main_~status~0) (<= main_~status~0 3) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) 0) (= main_~status~0 3) (or (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) 0)) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))) [2019-09-21 09:54:49,644 INFO L193 IcfgInterpreter]: Reachable states at location mainErr12ASSERT_VIOLATIONERROR_FUNCTION satisfy 16148#(and (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (+ (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) 4)) 3) (<= 3 main_~status~0) (<= main_~status~0 3)) [2019-09-21 09:54:49,644 INFO L193 IcfgInterpreter]: Reachable states at location mainErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 128#(and (= 0 main_~head~0.offset) (<= 0 main_~head~0.base) (= 0 main_~head~0.base) (<= main_~head~0.offset 0) (<= main_~head~0.base 0) (<= 0 main_~head~0.offset)) [2019-09-21 09:54:49,645 INFO L193 IcfgInterpreter]: Reachable states at location mainErr13ASSERT_VIOLATIONERROR_FUNCTION satisfy 17007#(and (not (= main_~status~0 0)) (<= (select (select |#memory_int| main_~item~0.base) (+ main_~item~0.offset 4)) 0)) [2019-09-21 09:54:49,645 INFO L193 IcfgInterpreter]: Reachable states at location mainErr1ASSERT_VIOLATIONERROR_FUNCTION satisfy 6764#(and (<= 0 main_~item~0.base) (= 0 main_~item~0.offset) (<= main_~item~0.base 0) (= main_~item~0.base 0) (or (not (= 0 main_~head~0.offset)) (not (= 0 main_~head~0.base))) (<= 0 main_~item~0.offset) (<= main_~item~0.offset 0)) [2019-09-21 09:54:49,646 INFO L193 IcfgInterpreter]: Reachable states at location mainErr5ASSERT_VIOLATIONERROR_FUNCTION satisfy 14337#(and (= 0 main_~head~0.offset) (<= 0 main_~head~0.base) (<= 2 main_~status~0) (= main_~status~0 2) (<= main_~status~0 2) (= 0 main_~head~0.base) (<= main_~head~0.offset 0) (<= main_~head~0.base 0) (<= 0 main_~head~0.offset)) [2019-09-21 09:54:49,647 INFO L193 IcfgInterpreter]: Reachable states at location mainErr8ASSERT_VIOLATIONERROR_FUNCTION satisfy 17208#(and (= 0 main_~head~0.offset) (<= 0 main_~head~0.base) (not (= main_~status~0 2)) (= 0 main_~head~0.base) (<= 3 main_~status~0) (<= main_~status~0 3) (<= main_~head~0.offset 0) (<= main_~head~0.base 0) (<= 0 main_~head~0.offset) (= main_~status~0 3)) [2019-09-21 09:54:49,677 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-09-21 09:54:49,678 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-09-21 09:54:49,680 INFO L168 Benchmark]: Toolchain (without parser) took 22722.58 ms. Allocated memory was 132.6 MB in the beginning and 574.6 MB in the end (delta: 442.0 MB). Free memory was 87.3 MB in the beginning and 356.2 MB in the end (delta: -268.9 MB). Peak memory consumption was 173.1 MB. Max. memory is 7.1 GB. [2019-09-21 09:54:49,681 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 132.6 MB. Free memory was 106.7 MB in the beginning and 106.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-21 09:54:49,682 INFO L168 Benchmark]: CACSL2BoogieTranslator took 625.17 ms. Allocated memory was 132.6 MB in the beginning and 200.3 MB in the end (delta: 67.6 MB). Free memory was 87.1 MB in the beginning and 165.1 MB in the end (delta: -78.0 MB). Peak memory consumption was 28.0 MB. Max. memory is 7.1 GB. [2019-09-21 09:54:49,684 INFO L168 Benchmark]: Boogie Preprocessor took 72.49 ms. Allocated memory is still 200.3 MB. Free memory was 165.1 MB in the beginning and 161.1 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2019-09-21 09:54:49,685 INFO L168 Benchmark]: RCFGBuilder took 872.74 ms. Allocated memory is still 200.3 MB. Free memory was 161.1 MB in the beginning and 96.7 MB in the end (delta: 64.4 MB). Peak memory consumption was 64.4 MB. Max. memory is 7.1 GB. [2019-09-21 09:54:49,688 INFO L168 Benchmark]: Sifa took 21147.97 ms. Allocated memory was 200.3 MB in the beginning and 574.6 MB in the end (delta: 374.3 MB). Free memory was 96.7 MB in the beginning and 356.2 MB in the end (delta: -259.5 MB). Peak memory consumption was 114.8 MB. Max. memory is 7.1 GB. [2019-09-21 09:54:49,693 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 132.6 MB. Free memory was 106.7 MB in the beginning and 106.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 625.17 ms. Allocated memory was 132.6 MB in the beginning and 200.3 MB in the end (delta: 67.6 MB). Free memory was 87.1 MB in the beginning and 165.1 MB in the end (delta: -78.0 MB). Peak memory consumption was 28.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 72.49 ms. Allocated memory is still 200.3 MB. Free memory was 165.1 MB in the beginning and 161.1 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 872.74 ms. Allocated memory is still 200.3 MB. Free memory was 161.1 MB in the beginning and 96.7 MB in the end (delta: 64.4 MB). Peak memory consumption was 64.4 MB. Max. memory is 7.1 GB. * Sifa took 21147.97 ms. Allocated memory was 200.3 MB in the beginning and 574.6 MB in the end (delta: 374.3 MB). Free memory was 96.7 MB in the beginning and 356.2 MB in the end (delta: -259.5 MB). Peak memory consumption was 114.8 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]: 21091, ICFG_INTERPRETER_ENTERED_PROCEDURES: 2, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 8990, DAG_INTERPRETER_EARLY_EXITS: 1002, TOOLS_POST_APPLICATIONS: 7288, TOOLS_POST_TIME[ms]: 7493, TOOLS_POST_CALL_APPLICATIONS: 2, TOOLS_POST_CALL_TIME[ms]: 15, TOOLS_POST_RETURN_APPLICATIONS: 1, TOOLS_POST_RETURN_TIME[ms]: 1, TOOLS_QUANTIFIERELIM_APPLICATIONS: 6921, TOOLS_QUANTIFIERELIM_TIME[ms]: 7041, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 5427, FLUID_QUERY_TIME[ms]: 58, FLUID_QUERIES: 10064, FLUID_YES_ANSWERS: 205, DOMAIN_JOIN_APPLICATIONS: 2279, DOMAIN_JOIN_TIME[ms]: 4217, DOMAIN_ALPHA_APPLICATIONS: 205, DOMAIN_ALPHA_TIME[ms]: 112, DOMAIN_WIDEN_APPLICATIONS: 3, DOMAIN_WIDEN_TIME[ms]: 18, DOMAIN_ISSUBSETEQ_APPLICATIONS: 1074, DOMAIN_ISSUBSETEQ_TIME[ms]: 4306, DOMAIN_ISBOTTOM_APPLICATIONS: 2605, DOMAIN_ISBOTTOM_TIME[ms]: 3363, LOOP_SUMMARIZER_APPLICATIONS: 1071, LOOP_SUMMARIZER_CACHE_MISSES: 1071, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 15199, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 15187, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 1074, CALL_SUMMARIZER_APPLICATIONS: 1, CALL_SUMMARIZER_CACHE_MISSES: 1, CALL_SUMMARIZER_OVERALL_TIME[ms]: 111, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 111, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 5, PATH_EXPR_TIME[ms]: 12, REGEX_TO_DAG_TIME[ms]: 54, DAG_COMPRESSION_TIME[ms]: 933, DAG_COMPRESSION_PROCESSED_NODES: 54348, DAG_COMPRESSION_RETAINED_NODES: 18745 - PositiveResult [Line: 1020]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1017]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - UnprovableResult [Line: 1032]: 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 17162#(and (not (= main_~status~0 2)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) 0) (or (not (= 0 main_~head~0.offset)) (not (= 0 main_~head~0.base))) (<= 3 main_~status~0) (<= main_~status~0 3) (= main_~status~0 3) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))). Possible FailurePath: - UnprovableResult [Line: 1026]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: Over-approximation of reachable states at this location is 14251#(and (<= 2 main_~status~0) (= main_~status~0 2) (<= main_~status~0 2) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) 0) (or (not (= 0 main_~head~0.offset)) (not (= 0 main_~head~0.base))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))). Possible FailurePath: - UnprovableResult [Line: 1034]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: Over-approximation of reachable states at this location is 16727#(and (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) 0) (or (not (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) 0)) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) 0))) (<= 3 main_~status~0) (or (not (= 0 main_~head~0.offset)) (not (= 0 main_~head~0.base))) (<= main_~status~0 3) (or (not (= main_~status~0 2)) (and (<= 2 main_~status~0) (<= main_~status~0 2))) (= main_~status~0 3) (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (or (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) 0)) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))). Possible FailurePath: - UnprovableResult [Line: 1027]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: Over-approximation of reachable states at this location is 17049#(and (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) 0) (<= 2 main_~status~0) (= main_~status~0 2) (<= main_~status~0 2) (or (not (= 0 main_~head~0.offset)) (not (= 0 main_~head~0.base))) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) 0) (or (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) 0)) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))). Possible FailurePath: - UnprovableResult [Line: 1021]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: Over-approximation of reachable states at this location is 14313#(exists ((v_DerPreprocessor_1 Int)) (or (and (not (= 0 main_~item~0.offset)) (= main_~status~0 1) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) 0) (<= main_~status~0 1) (not (= 0 main_~head~0.base)) (<= 1 main_~status~0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (and (not (= 0 main_~head~0.offset)) (= main_~status~0 1) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) 0) (not (= main_~item~0.base 0)) (<= main_~status~0 1) (<= 1 main_~status~0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (and (= (store |old(#memory_$Pointer$.offset)| main_~head~0.base (store (store (select |old(#memory_$Pointer$.offset)| main_~head~0.base) main_~head~0.offset 0) (+ main_~head~0.offset 4) (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4)))) |#memory_$Pointer$.offset|) (= 0 |#NULL.base|) (= 0 |main_#t~malloc0.offset|) (<= 0 |#NULL.base|) (= |#memory_$Pointer$.base| (store |old(#memory_$Pointer$.base)| main_~head~0.base (store (store (select |old(#memory_$Pointer$.base)| main_~head~0.base) main_~head~0.offset 0) (+ main_~head~0.offset 4) (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4))))) (<= 0 |#NULL.offset|) (= (store |old(#memory_int)| main_~head~0.base (store (store (select |old(#memory_int)| main_~head~0.base) main_~head~0.offset v_DerPreprocessor_1) (+ main_~head~0.offset 4) 0)) |#memory_int|) (= |main_#t~malloc0.base| main_~head~0.base) (= |#length| (store |old(#length)| |main_#t~malloc0.base| 8)) (= main_~status~0 1) (< |#StackHeapBarrier| |main_#t~malloc0.base|) (not (= 0 main_~head~0.base)) (not (= |main_#t~malloc0.base| 0)) (<= 1 main_~status~0) (= (store |old(#valid)| |main_#t~malloc0.base| 1) |#valid|) (<= |#NULL.base| 0) (= main_~head~0.offset main_~item~0.offset) (= main_~status~0 0) (= main_~item~0.base main_~head~0.base) (<= |#NULL.offset| 0) (= 0 (select |old(#valid)| 0)) (= main_~head~0.offset |main_#t~malloc0.offset|) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) 0) (<= main_~status~0 1) (= (select |old(#valid)| |main_#t~malloc0.base|) 0) (= |#NULL.offset| 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (and (= (store |old(#memory_$Pointer$.offset)| main_~head~0.base (store (store (select |old(#memory_$Pointer$.offset)| main_~head~0.base) main_~head~0.offset 0) (+ main_~head~0.offset 4) (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4)))) |#memory_$Pointer$.offset|) (= 0 |#NULL.base|) (= 0 |main_#t~malloc0.offset|) (<= 0 |#NULL.base|) (= |#memory_$Pointer$.base| (store |old(#memory_$Pointer$.base)| main_~head~0.base (store (store (select |old(#memory_$Pointer$.base)| main_~head~0.base) main_~head~0.offset 0) (+ main_~head~0.offset 4) (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4))))) (<= 0 |#NULL.offset|) (= (store |old(#memory_int)| main_~head~0.base (store (store (select |old(#memory_int)| main_~head~0.base) main_~head~0.offset v_DerPreprocessor_1) (+ main_~head~0.offset 4) 0)) |#memory_int|) (= |main_#t~malloc0.base| main_~head~0.base) (= |#length| (store |old(#length)| |main_#t~malloc0.base| 8)) (= main_~status~0 1) (< |#StackHeapBarrier| |main_#t~malloc0.base|) (not (= |main_#t~malloc0.base| 0)) (<= 1 main_~status~0) (= (store |old(#valid)| |main_#t~malloc0.base| 1) |#valid|) (<= |#NULL.base| 0) (= main_~head~0.offset main_~item~0.offset) (= main_~status~0 0) (= main_~item~0.base main_~head~0.base) (<= |#NULL.offset| 0) (= 0 (select |old(#valid)| 0)) (not (= 0 main_~head~0.offset)) (= main_~head~0.offset |main_#t~malloc0.offset|) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) 0) (<= main_~status~0 1) (= (select |old(#valid)| |main_#t~malloc0.base|) 0) (= |#NULL.offset| 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (and (= main_~status~0 1) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) 0) (not (= main_~item~0.base 0)) (<= main_~status~0 1) (not (= 0 main_~head~0.base)) (<= 1 main_~status~0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (and (not (= 0 main_~item~0.offset)) (not (= 0 main_~head~0.offset)) (= main_~status~0 1) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) 0) (<= main_~status~0 1) (<= 1 main_~status~0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))). Possible FailurePath: - UnprovableResult [Line: 1033]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: Over-approximation of reachable states at this location is 16858#(and (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) 0) (not (= main_~status~0 2)) (or (not (= 0 main_~head~0.offset)) (not (= 0 main_~head~0.base))) (<= 3 main_~status~0) (<= main_~status~0 3) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) 0) (= main_~status~0 3) (or (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) 0)) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))). Possible FailurePath: - UnprovableResult [Line: 1035]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: Over-approximation of reachable states at this location is 16148#(and (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (+ (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) 4)) 3) (<= 3 main_~status~0) (<= main_~status~0 3)). Possible FailurePath: - UnprovableResult [Line: 1013]: 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 128#(and (= 0 main_~head~0.offset) (<= 0 main_~head~0.base) (= 0 main_~head~0.base) (<= main_~head~0.offset 0) (<= main_~head~0.base 0) (<= 0 main_~head~0.offset)). Possible FailurePath: - UnprovableResult [Line: 1042]: 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 17007#(and (not (= main_~status~0 0)) (<= (select (select |#memory_int| main_~item~0.base) (+ main_~item~0.offset 4)) 0)). Possible FailurePath: - UnprovableResult [Line: 1014]: 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 6764#(and (<= 0 main_~item~0.base) (= 0 main_~item~0.offset) (<= main_~item~0.base 0) (= main_~item~0.base 0) (or (not (= 0 main_~head~0.offset)) (not (= 0 main_~head~0.base))) (<= 0 main_~item~0.offset) (<= main_~item~0.offset 0)). Possible FailurePath: - UnprovableResult [Line: 1025]: 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 14337#(and (= 0 main_~head~0.offset) (<= 0 main_~head~0.base) (<= 2 main_~status~0) (= main_~status~0 2) (<= main_~status~0 2) (= 0 main_~head~0.base) (<= main_~head~0.offset 0) (<= main_~head~0.base 0) (<= 0 main_~head~0.offset)). Possible FailurePath: - UnprovableResult [Line: 1031]: 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 17208#(and (= 0 main_~head~0.offset) (<= 0 main_~head~0.base) (not (= main_~status~0 2)) (= 0 main_~head~0.base) (<= 3 main_~status~0) (<= main_~status~0 3) (<= main_~head~0.offset 0) (<= main_~head~0.base 0) (<= 0 main_~head~0.offset) (= main_~status~0 3)). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...