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 IntervalDomain -i ../../../trunk/examples/svcomp/forester-heap/dll-rb-sentinel-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-06 09:00:07,013 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-06 09:00:07,015 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-06 09:00:07,027 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-06 09:00:07,028 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-06 09:00:07,029 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-06 09:00:07,030 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-06 09:00:07,032 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-06 09:00:07,034 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-06 09:00:07,034 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-06 09:00:07,035 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-06 09:00:07,037 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-06 09:00:07,037 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-06 09:00:07,038 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-06 09:00:07,039 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-06 09:00:07,040 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-06 09:00:07,041 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-06 09:00:07,042 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-06 09:00:07,043 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-06 09:00:07,045 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-06 09:00:07,047 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-06 09:00:07,048 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-06 09:00:07,049 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-06 09:00:07,050 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-06 09:00:07,052 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-06 09:00:07,052 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-06 09:00:07,053 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-06 09:00:07,053 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-06 09:00:07,054 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-06 09:00:07,055 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-06 09:00:07,055 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-06 09:00:07,056 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-06 09:00:07,057 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-06 09:00:07,058 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-06 09:00:07,059 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-06 09:00:07,059 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-06 09:00:07,059 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-06 09:00:07,060 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-06 09:00:07,060 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-06 09:00:07,061 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-06 09:00:07,061 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-06 09:00:07,062 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 [2019-09-06 09:00:07,078 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-06 09:00:07,078 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-06 09:00:07,080 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-06 09:00:07,080 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-06 09:00:07,080 INFO L138 SettingsManager]: * Use SBE=true [2019-09-06 09:00:07,080 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-06 09:00:07,081 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-06 09:00:07,081 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-06 09:00:07,081 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-06 09:00:07,081 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-06 09:00:07,081 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-06 09:00:07,081 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-06 09:00:07,082 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-06 09:00:07,082 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-06 09:00:07,082 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-06 09:00:07,082 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-06 09:00:07,082 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-06 09:00:07,083 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-06 09:00:07,083 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-06 09:00:07,083 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-06 09:00:07,083 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-06 09:00:07,083 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-06 09:00:07,084 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-06 09:00:07,084 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-06 09:00:07,084 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-06 09:00:07,084 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-06 09:00:07,084 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-06 09:00:07,085 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-06 09:00:07,085 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> IntervalDomain [2019-09-06 09:00:07,114 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-06 09:00:07,130 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-06 09:00:07,137 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-06 09:00:07,139 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-06 09:00:07,139 INFO L275 PluginConnector]: CDTParser initialized [2019-09-06 09:00:07,140 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-rb-sentinel-2.i [2019-09-06 09:00:07,218 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c9bc5fc7/bdf654668cff437ebf024769202f86b9/FLAG9626d6305 [2019-09-06 09:00:07,731 INFO L306 CDTParser]: Found 1 translation units. [2019-09-06 09:00:07,731 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-rb-sentinel-2.i [2019-09-06 09:00:07,748 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c9bc5fc7/bdf654668cff437ebf024769202f86b9/FLAG9626d6305 [2019-09-06 09:00:08,026 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c9bc5fc7/bdf654668cff437ebf024769202f86b9 [2019-09-06 09:00:08,036 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-06 09:00:08,037 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-06 09:00:08,039 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-06 09:00:08,039 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-06 09:00:08,043 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-06 09:00:08,044 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.09 09:00:08" (1/1) ... [2019-09-06 09:00:08,046 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e6cf58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 09:00:08, skipping insertion in model container [2019-09-06 09:00:08,047 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.09 09:00:08" (1/1) ... [2019-09-06 09:00:08,055 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-06 09:00:08,114 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-06 09:00:08,619 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-06 09:00:08,633 INFO L188 MainTranslator]: Completed pre-run [2019-09-06 09:00:08,676 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-06 09:00:08,741 INFO L192 MainTranslator]: Completed translation [2019-09-06 09:00:08,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 09:00:08 WrapperNode [2019-09-06 09:00:08,742 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-06 09:00:08,743 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-06 09:00:08,743 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-06 09:00:08,743 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-06 09:00:08,758 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 09:00:08" (1/1) ... [2019-09-06 09:00:08,758 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 09:00:08" (1/1) ... [2019-09-06 09:00:08,777 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 09:00:08" (1/1) ... [2019-09-06 09:00:08,778 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 09:00:08" (1/1) ... [2019-09-06 09:00:08,798 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 09:00:08" (1/1) ... [2019-09-06 09:00:08,807 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 09:00:08" (1/1) ... [2019-09-06 09:00:08,811 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 09:00:08" (1/1) ... [2019-09-06 09:00:08,818 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-06 09:00:08,818 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-06 09:00:08,818 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-06 09:00:08,818 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-06 09:00:08,819 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 09:00:08" (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 [2019-09-06 09:00:08,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-06 09:00:08,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-06 09:00:08,870 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-06 09:00:08,871 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-09-06 09:00:08,871 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-09-06 09:00:08,871 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-09-06 09:00:08,871 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-09-06 09:00:08,871 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-09-06 09:00:08,871 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-09-06 09:00:08,872 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-09-06 09:00:08,872 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-09-06 09:00:08,872 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-09-06 09:00:08,872 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-09-06 09:00:08,872 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-09-06 09:00:08,872 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-09-06 09:00:08,873 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-09-06 09:00:08,873 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-09-06 09:00:08,873 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-09-06 09:00:08,873 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-09-06 09:00:08,873 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-09-06 09:00:08,874 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-09-06 09:00:08,874 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-09-06 09:00:08,874 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-09-06 09:00:08,874 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-09-06 09:00:08,874 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-09-06 09:00:08,877 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-09-06 09:00:08,878 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-09-06 09:00:08,878 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-09-06 09:00:08,878 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-09-06 09:00:08,878 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-09-06 09:00:08,878 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-09-06 09:00:08,879 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-09-06 09:00:08,879 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-09-06 09:00:08,879 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-09-06 09:00:08,879 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-09-06 09:00:08,879 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-09-06 09:00:08,879 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-09-06 09:00:08,879 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-09-06 09:00:08,880 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-09-06 09:00:08,880 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-09-06 09:00:08,880 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-09-06 09:00:08,880 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-09-06 09:00:08,880 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-09-06 09:00:08,881 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-09-06 09:00:08,881 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-09-06 09:00:08,881 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-09-06 09:00:08,881 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-09-06 09:00:08,881 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-09-06 09:00:08,881 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-09-06 09:00:08,881 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-09-06 09:00:08,882 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-09-06 09:00:08,882 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-09-06 09:00:08,882 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-09-06 09:00:08,882 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-06 09:00:08,882 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-06 09:00:08,883 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-09-06 09:00:08,883 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-06 09:00:08,883 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-09-06 09:00:08,883 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-09-06 09:00:08,883 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-09-06 09:00:08,883 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-09-06 09:00:08,883 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-09-06 09:00:08,884 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-09-06 09:00:08,884 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-09-06 09:00:08,884 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-09-06 09:00:08,884 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-09-06 09:00:08,884 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-09-06 09:00:08,885 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-09-06 09:00:08,886 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-09-06 09:00:08,886 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-09-06 09:00:08,886 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-09-06 09:00:08,886 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-09-06 09:00:08,886 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-09-06 09:00:08,886 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-09-06 09:00:08,887 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-09-06 09:00:08,887 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-09-06 09:00:08,887 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-09-06 09:00:08,888 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-09-06 09:00:08,888 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-09-06 09:00:08,888 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-09-06 09:00:08,888 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-09-06 09:00:08,889 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-09-06 09:00:08,889 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-09-06 09:00:08,889 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-09-06 09:00:08,890 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-09-06 09:00:08,890 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-09-06 09:00:08,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-09-06 09:00:08,891 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-09-06 09:00:08,891 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-09-06 09:00:08,892 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-09-06 09:00:08,892 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-09-06 09:00:08,892 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-09-06 09:00:08,892 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-09-06 09:00:08,892 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-09-06 09:00:08,892 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-09-06 09:00:08,893 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-09-06 09:00:08,893 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-09-06 09:00:08,893 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-09-06 09:00:08,893 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-09-06 09:00:08,893 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-09-06 09:00:08,893 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-09-06 09:00:08,893 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-09-06 09:00:08,893 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-09-06 09:00:08,894 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-09-06 09:00:08,894 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-09-06 09:00:08,894 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-09-06 09:00:08,894 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-06 09:00:08,894 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-06 09:00:08,894 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-06 09:00:08,894 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-06 09:00:08,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-06 09:00:08,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-06 09:00:08,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-06 09:00:08,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-06 09:00:08,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-06 09:00:08,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-06 09:00:08,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-06 09:00:09,518 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-06 09:00:09,519 INFO L283 CfgBuilder]: Removed 17 assume(true) statements. [2019-09-06 09:00:09,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.09 09:00:09 BoogieIcfgContainer [2019-09-06 09:00:09,520 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-06 09:00:09,521 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-06 09:00:09,521 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-06 09:00:09,521 INFO L275 PluginConnector]: Sifa initialized [2019-09-06 09:00:09,522 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.09 09:00:09" (1/1) ... [2019-09-06 09:00:09,523 INFO L79 SifaObserver]: Intern domains=ExplicitValueDomain;IntervalDomain ♦ Abstract Domain=IntervalDomain ♦ 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=ReUseSupersetCallSummarizer ♦ Xnf Conversion Technique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION ♦ Simplification Technique=NONE ♦ Intern Fluid=SizeLimitFluid [2019-09-06 09:00:09,546 INFO L162 IcfgInterpreter]: Started Sifa with 7 locations of interest [2019-09-06 09:00:09,546 INFO L169 IcfgInterpreter]: Building call graph [2019-09-06 09:00:09,554 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-06 09:00:09,564 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-06 09:00:09,566 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-06 09:00:09,631 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 23 for LOIs [2019-09-06 09:00:11,859 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 33 [2019-09-06 09:00:12,743 WARN L188 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2019-09-06 09:00:12,929 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 47 [2019-09-06 09:00:13,071 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 37 [2019-09-06 09:00:29,191 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2019-09-06 09:00:29,397 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 47 [2019-09-06 09:00:29,531 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 37 [2019-09-06 09:00:44,063 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2019-09-06 09:00:44,264 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 47 [2019-09-06 09:00:44,411 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 37 [2019-09-06 09:00:47,422 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2019-09-06 09:00:47,635 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 47 [2019-09-06 09:00:47,772 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 37 [2019-09-06 09:01:01,440 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2019-09-06 09:01:01,662 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 47 [2019-09-06 09:01:01,800 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 37 [2019-09-06 09:01:13,744 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2019-09-06 09:01:13,963 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 47 [2019-09-06 09:01:35,079 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2019-09-06 09:01:35,267 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 47 [2019-09-06 09:01:49,778 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2019-09-06 09:01:49,979 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 47 [2019-09-06 09:01:50,128 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 37 [2019-09-06 09:01:56,600 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2019-09-06 09:01:56,782 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 47 [2019-09-06 09:02:11,499 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2019-09-06 09:02:11,724 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 47 [2019-09-06 09:02:11,857 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 37 [2019-09-06 09:02:43,511 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2019-09-06 09:02:43,713 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 47 [2019-09-06 09:02:43,847 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 37 [2019-09-06 09:02:57,799 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2019-09-06 09:02:57,985 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 47 [2019-09-06 09:02:58,116 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 37 [2019-09-06 09:03:37,738 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2019-09-06 09:03:37,940 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 47 [2019-09-06 09:03:38,095 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 37 [2019-09-06 09:04:00,153 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2019-09-06 09:04:00,357 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 47 [2019-09-06 09:04:00,488 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 37 [2019-09-06 09:04:11,242 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2019-09-06 09:04:11,446 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 47 [2019-09-06 09:04:18,995 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2019-09-06 09:04:19,183 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 47 [2019-09-06 09:04:19,324 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 37 [2019-09-06 09:04:32,293 INFO L183 IcfgInterpreter]: Interpretation finished [2019-09-06 09:04:32,294 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-09-06 09:04:32,296 INFO L193 IcfgInterpreter]: Reachable states at location mainErr3ASSERT_VIOLATIONERROR_FUNCTION satisfy 1450#true [2019-09-06 09:04:32,296 INFO L193 IcfgInterpreter]: Reachable states at location mainErr6ASSERT_VIOLATIONERROR_FUNCTION satisfy 1343#true [2019-09-06 09:04:32,296 INFO L193 IcfgInterpreter]: Reachable states at location mainErr5ASSERT_VIOLATIONERROR_FUNCTION satisfy 1414#true [2019-09-06 09:04:32,297 INFO L193 IcfgInterpreter]: Reachable states at location mainErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 1246#true [2019-09-06 09:04:32,297 INFO L193 IcfgInterpreter]: Reachable states at location mainErr1ASSERT_VIOLATIONERROR_FUNCTION satisfy 1194#true [2019-09-06 09:04:32,297 INFO L193 IcfgInterpreter]: Reachable states at location mainErr2ASSERT_VIOLATIONERROR_FUNCTION satisfy 1133#true [2019-09-06 09:04:32,297 INFO L193 IcfgInterpreter]: Reachable states at location mainErr4ASSERT_VIOLATIONERROR_FUNCTION satisfy 1437#true [2019-09-06 09:04:32,328 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-09-06 09:04:32,329 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-09-06 09:04:32,330 INFO L168 Benchmark]: Toolchain (without parser) took 264293.66 ms. Allocated memory was 138.4 MB in the beginning and 2.8 GB in the end (delta: 2.7 GB). Free memory was 85.3 MB in the beginning and 1.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2019-09-06 09:04:32,331 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 138.4 MB. Free memory was 104.5 MB in the beginning and 104.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-06 09:04:32,331 INFO L168 Benchmark]: CACSL2BoogieTranslator took 703.80 ms. Allocated memory was 138.4 MB in the beginning and 199.2 MB in the end (delta: 60.8 MB). Free memory was 85.0 MB in the beginning and 164.5 MB in the end (delta: -79.5 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. [2019-09-06 09:04:32,331 INFO L168 Benchmark]: Boogie Preprocessor took 74.96 ms. Allocated memory is still 199.2 MB. Free memory was 164.5 MB in the beginning and 161.3 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 7.1 GB. [2019-09-06 09:04:32,331 INFO L168 Benchmark]: RCFGBuilder took 702.30 ms. Allocated memory is still 199.2 MB. Free memory was 161.3 MB in the beginning and 111.0 MB in the end (delta: 50.3 MB). Peak memory consumption was 50.3 MB. Max. memory is 7.1 GB. [2019-09-06 09:04:32,332 INFO L168 Benchmark]: Sifa took 262808.08 ms. Allocated memory was 199.2 MB in the beginning and 2.8 GB in the end (delta: 2.6 GB). Free memory was 111.0 MB in the beginning and 1.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2019-09-06 09:04:32,332 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 138.4 MB. Free memory was 104.5 MB in the beginning and 104.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 703.80 ms. Allocated memory was 138.4 MB in the beginning and 199.2 MB in the end (delta: 60.8 MB). Free memory was 85.0 MB in the beginning and 164.5 MB in the end (delta: -79.5 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 74.96 ms. Allocated memory is still 199.2 MB. Free memory was 164.5 MB in the beginning and 161.3 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 702.30 ms. Allocated memory is still 199.2 MB. Free memory was 161.3 MB in the beginning and 111.0 MB in the end (delta: 50.3 MB). Peak memory consumption was 50.3 MB. Max. memory is 7.1 GB. * Sifa took 262808.08 ms. Allocated memory was 199.2 MB in the beginning and 2.8 GB in the end (delta: 2.6 GB). Free memory was 111.0 MB in the beginning and 1.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.sifa: - StatisticsResult: Symbolic Interpretation with Fluid Abstractions OVERALL_TIME[ms]: 262752, ICFG_INTERPRETER_ENTERED_PROCEDURES: 2, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 1212, DAG_INTERPRETER_EARLY_EXITS: 67, TOOLS_POST_APPLICATIONS: 1003, TOOLS_POST_TIME[ms]: 261656, TOOLS_POST_CALL_APPLICATIONS: 2, TOOLS_POST_CALL_TIME[ms]: 15, TOOLS_POST_RETURN_APPLICATIONS: 1, TOOLS_POST_RETURN_TIME[ms]: 1, TOOLS_QUANTIFIERELIM_TIME[ms]: 261301, FLUID_QUERY_TIME[ms]: 16, FLUID_QUERIES: 1326, FLUID_YES_ANSWERS: 32, DOMAIN_JOIN_APPLICATIONS: 410, DOMAIN_JOIN_TIME[ms]: 58, DOMAIN_ALPHA_APPLICATIONS: 32, DOMAIN_ALPHA_TIME[ms]: 1, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME[ms]: 0, DOMAIN_ISSUBSETEQ_APPLICATIONS: 114, DOMAIN_ISSUBSETEQ_TIME[ms]: 22, DOMAIN_ISBOTTOM_APPLICATIONS: 327, DOMAIN_ISBOTTOM_TIME[ms]: 775, LOOP_SUMMARIZER_APPLICATIONS: 114, LOOP_SUMMARIZER_CACHE_MISSES: 114, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 260663, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 260661, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 114, CALL_SUMMARIZER_APPLICATIONS: 1, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME[ms]: 19, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 0, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 5, PATH_EXPR_TIME[ms]: 6, REGEX_TO_DAG_TIME[ms]: 6, DAG_COMPRESSION_TIME[ms]: 80, DAG_COMPRESSION_PROCESSED_NODES: 1390, DAG_COMPRESSION_RETAINED_NODES: 717 - UnprovableResult [Line: 1038]: 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 1450#true. Possible FailurePath: - UnprovableResult [Line: 1046]: 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 1343#true. Possible FailurePath: - UnprovableResult [Line: 1045]: 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 1414#true. Possible FailurePath: - UnprovableResult [Line: 1029]: 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 1246#true. Possible FailurePath: - UnprovableResult [Line: 1030]: 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 1194#true. 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 1133#true. Possible FailurePath: - UnprovableResult [Line: 1039]: 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 1437#true. Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...