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 --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 09:12:01,880 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-21 09:12:01,882 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-21 09:12:01,893 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-21 09:12:01,894 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-21 09:12:01,895 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-21 09:12:01,897 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-21 09:12:01,899 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-21 09:12:01,902 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-21 09:12:01,904 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-21 09:12:01,910 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-21 09:12:01,912 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-21 09:12:01,912 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-21 09:12:01,913 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-21 09:12:01,917 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-21 09:12:01,918 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-21 09:12:01,919 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-21 09:12:01,920 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-21 09:12:01,922 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-21 09:12:01,927 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-21 09:12:01,929 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-21 09:12:01,931 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-21 09:12:01,933 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-21 09:12:01,934 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-21 09:12:01,939 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-21 09:12:01,939 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-21 09:12:01,939 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-21 09:12:01,941 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-21 09:12:01,943 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-21 09:12:01,944 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-21 09:12:01,944 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-21 09:12:01,946 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-21 09:12:01,947 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-21 09:12:01,948 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-21 09:12:01,951 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-21 09:12:01,951 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-21 09:12:01,952 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-21 09:12:01,952 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-21 09:12:01,953 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-21 09:12:01,955 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-21 09:12:01,958 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-21 09:12:01,959 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 09:12:01,974 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-21 09:12:01,974 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-21 09:12:01,975 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-21 09:12:01,975 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-21 09:12:01,976 INFO L138 SettingsManager]: * Use SBE=true [2019-09-21 09:12:01,976 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-21 09:12:01,976 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-21 09:12:01,976 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-21 09:12:01,976 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-21 09:12:01,977 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-21 09:12:01,977 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-21 09:12:01,977 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-21 09:12:01,977 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-21 09:12:01,977 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-21 09:12:01,977 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-21 09:12:01,978 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-21 09:12:01,978 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-21 09:12:01,978 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-21 09:12:01,978 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-21 09:12:01,978 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-21 09:12:01,979 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-21 09:12:01,979 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-21 09:12:01,979 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-21 09:12:01,979 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-21 09:12:01,980 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-21 09:12:01,980 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-21 09:12:01,980 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-21 09:12:01,980 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-21 09:12:01,980 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> IntervalDomain 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 09:12:02,020 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-21 09:12:02,034 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-21 09:12:02,038 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-21 09:12:02,040 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-21 09:12:02,041 INFO L275 PluginConnector]: CDTParser initialized [2019-09-21 09:12:02,041 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/sll-queue-2.i [2019-09-21 09:12:02,110 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b4b2b229/ea3081638afe41f88dd2ee40b8083cd5/FLAG37bbc1856 [2019-09-21 09:12:02,686 INFO L306 CDTParser]: Found 1 translation units. [2019-09-21 09:12:02,689 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-queue-2.i [2019-09-21 09:12:02,704 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b4b2b229/ea3081638afe41f88dd2ee40b8083cd5/FLAG37bbc1856 [2019-09-21 09:12:02,932 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b4b2b229/ea3081638afe41f88dd2ee40b8083cd5 [2019-09-21 09:12:02,941 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-21 09:12:02,942 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-21 09:12:02,943 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-21 09:12:02,944 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-21 09:12:02,947 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-21 09:12:02,948 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 09:12:02" (1/1) ... [2019-09-21 09:12:02,951 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@206385ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:12:02, skipping insertion in model container [2019-09-21 09:12:02,951 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 09:12:02" (1/1) ... [2019-09-21 09:12:02,959 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-21 09:12:03,028 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-21 09:12:03,471 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-21 09:12:03,482 INFO L188 MainTranslator]: Completed pre-run [2019-09-21 09:12:03,529 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-21 09:12:03,587 INFO L192 MainTranslator]: Completed translation [2019-09-21 09:12:03,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:12:03 WrapperNode [2019-09-21 09:12:03,588 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-21 09:12:03,588 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-21 09:12:03,588 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-21 09:12:03,589 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-21 09:12:03,603 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:12:03" (1/1) ... [2019-09-21 09:12:03,603 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:12:03" (1/1) ... [2019-09-21 09:12:03,632 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:12:03" (1/1) ... [2019-09-21 09:12:03,632 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:12:03" (1/1) ... [2019-09-21 09:12:03,655 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:12:03" (1/1) ... [2019-09-21 09:12:03,666 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:12:03" (1/1) ... [2019-09-21 09:12:03,670 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:12:03" (1/1) ... [2019-09-21 09:12:03,678 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-21 09:12:03,685 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-21 09:12:03,685 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-21 09:12:03,685 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-21 09:12:03,686 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:12:03" (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 09:12:03,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-21 09:12:03,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-21 09:12:03,736 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-21 09:12:03,736 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-09-21 09:12:03,737 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-09-21 09:12:03,737 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-09-21 09:12:03,737 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-09-21 09:12:03,737 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-09-21 09:12:03,737 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-09-21 09:12:03,738 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-09-21 09:12:03,738 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-09-21 09:12:03,738 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-09-21 09:12:03,738 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-09-21 09:12:03,738 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-09-21 09:12:03,738 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-09-21 09:12:03,739 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-09-21 09:12:03,739 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-09-21 09:12:03,739 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-09-21 09:12:03,739 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-09-21 09:12:03,739 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-09-21 09:12:03,740 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-09-21 09:12:03,740 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-09-21 09:12:03,740 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-09-21 09:12:03,740 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-09-21 09:12:03,740 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-09-21 09:12:03,740 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-09-21 09:12:03,741 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-09-21 09:12:03,741 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-09-21 09:12:03,741 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-09-21 09:12:03,741 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-09-21 09:12:03,741 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-09-21 09:12:03,741 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-09-21 09:12:03,742 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-09-21 09:12:03,742 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-09-21 09:12:03,742 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-09-21 09:12:03,742 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-09-21 09:12:03,742 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-09-21 09:12:03,742 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-09-21 09:12:03,743 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-09-21 09:12:03,743 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-09-21 09:12:03,743 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-09-21 09:12:03,743 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-09-21 09:12:03,743 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-09-21 09:12:03,744 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-09-21 09:12:03,744 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-09-21 09:12:03,744 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-09-21 09:12:03,744 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-09-21 09:12:03,744 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-09-21 09:12:03,744 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-09-21 09:12:03,744 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-09-21 09:12:03,745 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-09-21 09:12:03,745 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-09-21 09:12:03,745 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-09-21 09:12:03,745 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-21 09:12:03,745 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-21 09:12:03,745 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-09-21 09:12:03,745 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-21 09:12:03,746 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-09-21 09:12:03,746 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-09-21 09:12:03,746 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-09-21 09:12:03,746 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-09-21 09:12:03,746 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-09-21 09:12:03,746 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-09-21 09:12:03,747 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-09-21 09:12:03,747 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-09-21 09:12:03,747 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-09-21 09:12:03,747 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-09-21 09:12:03,747 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-09-21 09:12:03,747 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-09-21 09:12:03,748 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-09-21 09:12:03,748 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-09-21 09:12:03,748 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-09-21 09:12:03,748 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-09-21 09:12:03,748 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-09-21 09:12:03,748 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-09-21 09:12:03,749 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-09-21 09:12:03,749 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-09-21 09:12:03,749 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-09-21 09:12:03,749 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-09-21 09:12:03,749 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-09-21 09:12:03,749 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-09-21 09:12:03,750 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-09-21 09:12:03,750 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-09-21 09:12:03,750 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-09-21 09:12:03,750 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-09-21 09:12:03,750 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-09-21 09:12:03,750 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-09-21 09:12:03,751 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-09-21 09:12:03,751 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-09-21 09:12:03,751 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-09-21 09:12:03,751 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-09-21 09:12:03,751 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-09-21 09:12:03,751 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-09-21 09:12:03,751 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-09-21 09:12:03,752 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-09-21 09:12:03,752 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-09-21 09:12:03,752 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-09-21 09:12:03,752 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-09-21 09:12:03,752 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-09-21 09:12:03,752 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-09-21 09:12:03,752 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-09-21 09:12:03,753 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-09-21 09:12:03,753 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-09-21 09:12:03,753 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-09-21 09:12:03,753 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-09-21 09:12:03,753 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-09-21 09:12:03,753 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-21 09:12:03,754 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-21 09:12:03,754 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-21 09:12:03,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-21 09:12:03,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-21 09:12:03,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-21 09:12:03,754 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-21 09:12:03,754 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-21 09:12:03,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-21 09:12:03,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-21 09:12:03,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-21 09:12:04,559 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-21 09:12:04,560 INFO L283 CfgBuilder]: Removed 31 assume(true) statements. [2019-09-21 09:12:04,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 09:12:04 BoogieIcfgContainer [2019-09-21 09:12:04,562 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-21 09:12:04,562 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-21 09:12:04,562 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-21 09:12:04,563 INFO L275 PluginConnector]: Sifa initialized [2019-09-21 09:12:04,564 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 09:12:04" (1/1) ... [2019-09-21 09:12:04,565 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=TopInputCallSummarizer ♦ Xnf Conversion Technique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION ♦ Simplification Technique=SIMPLIFY_QUICK ♦ Intern Fluid=SizeLimitFluid [2019-09-21 09:12:04,591 INFO L162 IcfgInterpreter]: Started Sifa with 14 locations of interest [2019-09-21 09:12:04,591 INFO L169 IcfgInterpreter]: Building call graph [2019-09-21 09:12:04,600 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-21 09:12:04,610 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-21 09:12:04,612 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-21 09:12:04,797 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 23 for LOIs [2019-09-21 09:12:09,838 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 23 [2019-09-21 09:12:12,340 INFO L183 IcfgInterpreter]: Interpretation finished [2019-09-21 09:12:12,340 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-09-21 09:12:12,342 INFO L193 IcfgInterpreter]: Reachable states at location mainErr1ASSERT_VIOLATIONERROR_FUNCTION satisfy 2812#(and (<= 0 main_~item~0.base) (<= main_~item~0.base 0) (<= 0 main_~item~0.offset) (<= main_~item~0.offset 0)) [2019-09-21 09:12:12,343 INFO L193 IcfgInterpreter]: Reachable states at location mainErr9ASSERT_VIOLATIONERROR_FUNCTION satisfy 5010#(and (<= 3 main_~status~0) (<= main_~status~0 3)) [2019-09-21 09:12:12,343 INFO L193 IcfgInterpreter]: Reachable states at location mainErr3ASSERT_VIOLATIONERROR_FUNCTION satisfy 5172#(and (<= 0 main_~head~0.base) (<= main_~status~0 1) (<= main_~head~0.offset 0) (<= main_~head~0.base 0) (<= 1 main_~status~0) (<= 0 main_~head~0.offset)) [2019-09-21 09:12:12,343 INFO L193 IcfgInterpreter]: Reachable states at location mainErr6ASSERT_VIOLATIONERROR_FUNCTION satisfy 5065#(and (<= 2 main_~status~0) (<= main_~status~0 2)) [2019-09-21 09:12:12,344 INFO L193 IcfgInterpreter]: Reachable states at location mainErr4ASSERT_VIOLATIONERROR_FUNCTION satisfy 5154#(and (<= main_~status~0 1) (<= 1 main_~status~0)) [2019-09-21 09:12:12,344 INFO L193 IcfgInterpreter]: Reachable states at location mainErr11ASSERT_VIOLATIONERROR_FUNCTION satisfy 4432#(and (<= 3 main_~status~0) (<= main_~status~0 3)) [2019-09-21 09:12:12,344 INFO L193 IcfgInterpreter]: Reachable states at location mainErr7ASSERT_VIOLATIONERROR_FUNCTION satisfy 4883#(and (<= 2 main_~status~0) (<= main_~status~0 2)) [2019-09-21 09:12:12,344 INFO L193 IcfgInterpreter]: Reachable states at location mainErr5ASSERT_VIOLATIONERROR_FUNCTION satisfy 5126#(and (<= 0 main_~head~0.base) (<= 2 main_~status~0) (<= main_~status~0 2) (<= main_~head~0.offset 0) (<= main_~head~0.base 0) (<= 0 main_~head~0.offset)) [2019-09-21 09:12:12,345 INFO L193 IcfgInterpreter]: Reachable states at location mainErr12ASSERT_VIOLATIONERROR_FUNCTION satisfy 4121#(and (<= 3 main_~status~0) (<= main_~status~0 3)) [2019-09-21 09:12:12,345 INFO L193 IcfgInterpreter]: Reachable states at location mainErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 176#(and (<= 0 main_~head~0.base) (<= main_~head~0.offset 0) (<= main_~head~0.base 0) (<= 0 main_~head~0.offset)) [2019-09-21 09:12:12,345 INFO L193 IcfgInterpreter]: Reachable states at location mainErr10ASSERT_VIOLATIONERROR_FUNCTION satisfy 4629#(and (<= 3 main_~status~0) (<= main_~status~0 3)) [2019-09-21 09:12:12,346 INFO L193 IcfgInterpreter]: Reachable states at location mainErr8ASSERT_VIOLATIONERROR_FUNCTION satisfy 5087#(and (<= 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)) [2019-09-21 09:12:12,346 INFO L193 IcfgInterpreter]: Reachable states at location mainErr2ASSERT_VIOLATIONERROR_FUNCTION satisfy 2863#(and (<= 0 main_~head~0.base) (<= main_~head~0.offset 0) (<= main_~head~0.base 0) (<= 0 main_~head~0.offset)) [2019-09-21 09:12:12,346 INFO L193 IcfgInterpreter]: Reachable states at location mainErr13ASSERT_VIOLATIONERROR_FUNCTION satisfy 4757#true [2019-09-21 09:12:12,370 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-09-21 09:12:12,371 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-09-21 09:12:12,372 INFO L168 Benchmark]: Toolchain (without parser) took 9430.10 ms. Allocated memory was 131.6 MB in the beginning and 410.0 MB in the end (delta: 278.4 MB). Free memory was 85.5 MB in the beginning and 222.7 MB in the end (delta: -137.2 MB). Peak memory consumption was 141.2 MB. Max. memory is 7.1 GB. [2019-09-21 09:12:12,373 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 131.6 MB. Free memory was 105.6 MB in the beginning and 105.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-21 09:12:12,374 INFO L168 Benchmark]: CACSL2BoogieTranslator took 644.62 ms. Allocated memory was 131.6 MB in the beginning and 198.7 MB in the end (delta: 67.1 MB). Free memory was 85.3 MB in the beginning and 162.4 MB in the end (delta: -77.1 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2019-09-21 09:12:12,374 INFO L168 Benchmark]: Boogie Preprocessor took 89.94 ms. Allocated memory is still 198.7 MB. Free memory was 162.4 MB in the beginning and 159.1 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. [2019-09-21 09:12:12,375 INFO L168 Benchmark]: RCFGBuilder took 876.97 ms. Allocated memory is still 198.7 MB. Free memory was 159.1 MB in the beginning and 94.6 MB in the end (delta: 64.5 MB). Peak memory consumption was 64.5 MB. Max. memory is 7.1 GB. [2019-09-21 09:12:12,376 INFO L168 Benchmark]: Sifa took 7808.66 ms. Allocated memory was 198.7 MB in the beginning and 410.0 MB in the end (delta: 211.3 MB). Free memory was 94.6 MB in the beginning and 222.7 MB in the end (delta: -128.1 MB). Peak memory consumption was 83.2 MB. Max. memory is 7.1 GB. [2019-09-21 09:12:12,378 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 131.6 MB. Free memory was 105.6 MB in the beginning and 105.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 644.62 ms. Allocated memory was 131.6 MB in the beginning and 198.7 MB in the end (delta: 67.1 MB). Free memory was 85.3 MB in the beginning and 162.4 MB in the end (delta: -77.1 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 89.94 ms. Allocated memory is still 198.7 MB. Free memory was 162.4 MB in the beginning and 159.1 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 876.97 ms. Allocated memory is still 198.7 MB. Free memory was 159.1 MB in the beginning and 94.6 MB in the end (delta: 64.5 MB). Peak memory consumption was 64.5 MB. Max. memory is 7.1 GB. * Sifa took 7808.66 ms. Allocated memory was 198.7 MB in the beginning and 410.0 MB in the end (delta: 211.3 MB). Free memory was 94.6 MB in the beginning and 222.7 MB in the end (delta: -128.1 MB). Peak memory consumption was 83.2 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]: 7755, ICFG_INTERPRETER_ENTERED_PROCEDURES: 2, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 5004, DAG_INTERPRETER_EARLY_EXITS: 628, TOOLS_POST_APPLICATIONS: 3991, TOOLS_POST_TIME[ms]: 5030, TOOLS_POST_CALL_APPLICATIONS: 2, TOOLS_POST_CALL_TIME[ms]: 20, TOOLS_POST_RETURN_APPLICATIONS: 1, TOOLS_POST_RETURN_TIME[ms]: 1, TOOLS_QUANTIFIERELIM_APPLICATIONS: 3821, TOOLS_QUANTIFIERELIM_TIME[ms]: 4823, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 2259, FLUID_QUERY_TIME[ms]: 42, FLUID_QUERIES: 5604, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 1174, DOMAIN_JOIN_TIME[ms]: 517, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 2, DOMAIN_WIDEN_TIME[ms]: 1, DOMAIN_ISSUBSETEQ_APPLICATIONS: 600, DOMAIN_ISSUBSETEQ_TIME[ms]: 10, DOMAIN_ISBOTTOM_APPLICATIONS: 1465, DOMAIN_ISBOTTOM_TIME[ms]: 922, LOOP_SUMMARIZER_APPLICATIONS: 598, LOOP_SUMMARIZER_CACHE_MISSES: 598, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 5330, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 5321, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 600, CALL_SUMMARIZER_APPLICATIONS: 1, CALL_SUMMARIZER_CACHE_MISSES: 1, CALL_SUMMARIZER_OVERALL_TIME[ms]: 131, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 131, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 5, PATH_EXPR_TIME[ms]: 11, REGEX_TO_DAG_TIME[ms]: 21, DAG_COMPRESSION_TIME[ms]: 813, DAG_COMPRESSION_PROCESSED_NODES: 40779, DAG_COMPRESSION_RETAINED_NODES: 13985 - 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 2812#(and (<= 0 main_~item~0.base) (<= main_~item~0.base 0) (<= 0 main_~item~0.offset) (<= main_~item~0.offset 0)). Possible FailurePath: - 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 5010#(and (<= 3 main_~status~0) (<= main_~status~0 3)). Possible FailurePath: - UnprovableResult [Line: 1020]: 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 5172#(and (<= 0 main_~head~0.base) (<= main_~status~0 1) (<= main_~head~0.offset 0) (<= main_~head~0.base 0) (<= 1 main_~status~0) (<= 0 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 5065#(and (<= 2 main_~status~0) (<= main_~status~0 2)). 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 5154#(and (<= main_~status~0 1) (<= 1 main_~status~0)). 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 4432#(and (<= 3 main_~status~0) (<= main_~status~0 3)). 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 4883#(and (<= 2 main_~status~0) (<= main_~status~0 2)). 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 5126#(and (<= 0 main_~head~0.base) (<= 2 main_~status~0) (<= main_~status~0 2) (<= main_~head~0.offset 0) (<= main_~head~0.base 0) (<= 0 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 4121#(and (<= 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 176#(and (<= 0 main_~head~0.base) (<= main_~head~0.offset 0) (<= main_~head~0.base 0) (<= 0 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 4629#(and (<= 3 main_~status~0) (<= main_~status~0 3)). 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 5087#(and (<= 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)). Possible FailurePath: - UnprovableResult [Line: 1017]: 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 2863#(and (<= 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 4757#true. Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...