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 -i ../../../trunk/examples/svcomp/eca-rers2012/Problem04_label32.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-2989841 [2019-08-09 16:54:27,021 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-09 16:54:27,023 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-09 16:54:27,035 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-09 16:54:27,035 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-09 16:54:27,036 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-09 16:54:27,037 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-09 16:54:27,039 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-09 16:54:27,041 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-09 16:54:27,042 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-09 16:54:27,043 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-09 16:54:27,044 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-09 16:54:27,044 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-09 16:54:27,045 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-09 16:54:27,046 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-09 16:54:27,047 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-09 16:54:27,048 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-09 16:54:27,049 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-09 16:54:27,051 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-09 16:54:27,053 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-09 16:54:27,055 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-09 16:54:27,056 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-09 16:54:27,057 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-09 16:54:27,058 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-09 16:54:27,061 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-09 16:54:27,061 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-09 16:54:27,062 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-09 16:54:27,063 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-09 16:54:27,063 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-09 16:54:27,064 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-09 16:54:27,065 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-09 16:54:27,065 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-09 16:54:27,066 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-09 16:54:27,067 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-09 16:54:27,068 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-09 16:54:27,069 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-09 16:54:27,069 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-09 16:54:27,070 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-09 16:54:27,070 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-09 16:54:27,071 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-09 16:54:27,072 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-09 16:54:27,072 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 [2019-08-09 16:54:27,095 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-09 16:54:27,096 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-09 16:54:27,098 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-09 16:54:27,098 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-09 16:54:27,098 INFO L138 SettingsManager]: * Use SBE=true [2019-08-09 16:54:27,098 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-09 16:54:27,098 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-09 16:54:27,099 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-09 16:54:27,099 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-09 16:54:27,100 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-09 16:54:27,100 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-09 16:54:27,100 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-09 16:54:27,101 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-09 16:54:27,101 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-09 16:54:27,101 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-09 16:54:27,101 INFO L138 SettingsManager]: * Use constant arrays=true [2019-08-09 16:54:27,101 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-09 16:54:27,102 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-09 16:54:27,102 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-09 16:54:27,102 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-08-09 16:54:27,104 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-09 16:54:27,104 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-09 16:54:27,105 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-09 16:54:27,105 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-09 16:54:27,105 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-09 16:54:27,105 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-08-09 16:54:27,105 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-09 16:54:27,106 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-09 16:54:27,106 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-09 16:54:27,138 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-09 16:54:27,150 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-09 16:54:27,154 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-09 16:54:27,155 INFO L271 PluginConnector]: Initializing CDTParser... [2019-08-09 16:54:27,156 INFO L275 PluginConnector]: CDTParser initialized [2019-08-09 16:54:27,158 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem04_label32.c [2019-08-09 16:54:27,227 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05a27272b/bc2fc70f4cb54f4787e66c1cdc8a8e1c/FLAG28009bbdd [2019-08-09 16:54:27,978 INFO L306 CDTParser]: Found 1 translation units. [2019-08-09 16:54:27,979 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem04_label32.c [2019-08-09 16:54:28,014 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05a27272b/bc2fc70f4cb54f4787e66c1cdc8a8e1c/FLAG28009bbdd [2019-08-09 16:54:28,083 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05a27272b/bc2fc70f4cb54f4787e66c1cdc8a8e1c [2019-08-09 16:54:28,099 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-09 16:54:28,101 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-09 16:54:28,105 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-08-09 16:54:28,105 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-08-09 16:54:28,109 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-08-09 16:54:28,111 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.08 04:54:28" (1/1) ... [2019-08-09 16:54:28,114 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a4ab5e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.08 04:54:28, skipping insertion in model container [2019-08-09 16:54:28,115 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.08 04:54:28" (1/1) ... [2019-08-09 16:54:28,123 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-08-09 16:54:28,302 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-08-09 16:54:29,939 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-09 16:54:29,954 INFO L188 MainTranslator]: Completed pre-run [2019-08-09 16:54:30,849 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-09 16:54:30,884 INFO L192 MainTranslator]: Completed translation [2019-08-09 16:54:30,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.08 04:54:30 WrapperNode [2019-08-09 16:54:30,884 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-08-09 16:54:30,885 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-09 16:54:30,885 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-09 16:54:30,885 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-09 16:54:30,899 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.08 04:54:30" (1/1) ... [2019-08-09 16:54:30,899 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.08 04:54:30" (1/1) ... [2019-08-09 16:54:30,949 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.08 04:54:30" (1/1) ... [2019-08-09 16:54:30,950 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.08 04:54:30" (1/1) ... [2019-08-09 16:54:31,094 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.08 04:54:30" (1/1) ... [2019-08-09 16:54:31,148 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.08 04:54:30" (1/1) ... [2019-08-09 16:54:31,199 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.08 04:54:30" (1/1) ... [2019-08-09 16:54:31,257 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-09 16:54:31,258 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-09 16:54:31,258 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-09 16:54:31,258 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-09 16:54:31,260 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.08 04:54:30" (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 [2019-08-09 16:54:31,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-08-09 16:54:31,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-09 16:54:31,359 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-08-09 16:54:31,360 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2019-08-09 16:54:31,360 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2019-08-09 16:54:31,362 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2019-08-09 16:54:31,362 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-09 16:54:31,363 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-08-09 16:54:31,363 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2019-08-09 16:54:31,363 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2019-08-09 16:54:31,363 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2019-08-09 16:54:31,364 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-08-09 16:54:31,365 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-08-09 16:54:31,365 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-08-09 16:54:31,366 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-09 16:54:31,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-08-09 16:54:31,368 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-09 16:54:36,862 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-09 16:54:36,862 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-08-09 16:54:36,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.08 04:54:36 BoogieIcfgContainer [2019-08-09 16:54:36,867 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-09 16:54:36,869 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-09 16:54:36,869 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-09 16:54:36,870 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-09 16:54:36,871 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.08 04:54:36" (1/1) ... [2019-08-09 16:54:40,577 WARN L88 terpretationObserver]: Some locations of interest might be reachable, see reported results. [2019-08-09 16:54:40,586 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-09 16:54:40,591 INFO L168 Benchmark]: Toolchain (without parser) took 12487.62 ms. Allocated memory was 137.4 MB in the beginning and 617.1 MB in the end (delta: 479.7 MB). Free memory was 72.7 MB in the beginning and 476.4 MB in the end (delta: -403.7 MB). Peak memory consumption was 427.0 MB. Max. memory is 7.1 GB. [2019-08-09 16:54:40,596 INFO L168 Benchmark]: CDTParser took 0.41 ms. Allocated memory is still 137.4 MB. Free memory was 105.9 MB in the beginning and 105.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-08-09 16:54:40,597 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2779.62 ms. Allocated memory was 137.4 MB in the beginning and 278.4 MB in the end (delta: 141.0 MB). Free memory was 72.2 MB in the beginning and 204.8 MB in the end (delta: -132.6 MB). Peak memory consumption was 113.4 MB. Max. memory is 7.1 GB. [2019-08-09 16:54:40,599 INFO L168 Benchmark]: Boogie Preprocessor took 372.24 ms. Allocated memory is still 278.4 MB. Free memory was 204.8 MB in the beginning and 174.7 MB in the end (delta: 30.1 MB). Peak memory consumption was 30.1 MB. Max. memory is 7.1 GB. [2019-08-09 16:54:40,604 INFO L168 Benchmark]: RCFGBuilder took 5608.88 ms. Allocated memory was 278.4 MB in the beginning and 431.5 MB in the end (delta: 153.1 MB). Free memory was 174.7 MB in the beginning and 323.8 MB in the end (delta: -149.1 MB). Peak memory consumption was 197.6 MB. Max. memory is 7.1 GB. [2019-08-09 16:54:40,606 INFO L168 Benchmark]: Symbolic Interpretation took 3717.48 ms. Allocated memory was 431.5 MB in the beginning and 617.1 MB in the end (delta: 185.6 MB). Free memory was 323.8 MB in the beginning and 476.4 MB in the end (delta: -152.6 MB). Peak memory consumption was 384.0 MB. Max. memory is 7.1 GB. [2019-08-09 16:54:40,619 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - UnprovableResult [Line: 4673]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: Interpreter reached this location of interest. Location might be reachable. Predicate is 65415#(and (= 1 ~a1~0) (= ~a28~0 16) (= 1 ~a3~0) (= ~a14~0 20) (not (= 1 ~a7~0)) (= ~a25~0 1) (= ~a26~0 17) (= 16 ~a4~0)). Possible FailurePath: * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41 ms. Allocated memory is still 137.4 MB. Free memory was 105.9 MB in the beginning and 105.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2779.62 ms. Allocated memory was 137.4 MB in the beginning and 278.4 MB in the end (delta: 141.0 MB). Free memory was 72.2 MB in the beginning and 204.8 MB in the end (delta: -132.6 MB). Peak memory consumption was 113.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 372.24 ms. Allocated memory is still 278.4 MB. Free memory was 204.8 MB in the beginning and 174.7 MB in the end (delta: 30.1 MB). Peak memory consumption was 30.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5608.88 ms. Allocated memory was 278.4 MB in the beginning and 431.5 MB in the end (delta: 153.1 MB). Free memory was 174.7 MB in the beginning and 323.8 MB in the end (delta: -149.1 MB). Peak memory consumption was 197.6 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 3717.48 ms. Allocated memory was 431.5 MB in the beginning and 617.1 MB in the end (delta: 185.6 MB). Free memory was 323.8 MB in the beginning and 476.4 MB in the end (delta: -152.6 MB). Peak memory consumption was 384.0 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...