java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/Sifa.xml -i ../../../trunk/examples/programs/toy/LockingExampleArray.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-4ddfff8 [2019-08-09 14:14:38,934 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-09 14:14:38,936 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-09 14:14:38,949 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-09 14:14:38,949 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-09 14:14:38,950 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-09 14:14:38,951 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-09 14:14:38,953 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-09 14:14:38,955 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-09 14:14:38,956 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-09 14:14:38,957 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-09 14:14:38,958 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-09 14:14:38,958 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-09 14:14:38,959 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-09 14:14:38,960 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-09 14:14:38,961 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-09 14:14:38,962 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-09 14:14:38,963 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-09 14:14:38,965 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-09 14:14:38,967 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-09 14:14:38,968 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-09 14:14:38,969 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-09 14:14:38,971 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-09 14:14:38,971 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-09 14:14:38,973 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-09 14:14:38,974 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-09 14:14:38,974 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-09 14:14:38,975 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-09 14:14:38,975 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-09 14:14:38,976 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-09 14:14:38,977 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-09 14:14:38,977 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-09 14:14:38,978 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-09 14:14:38,979 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-09 14:14:38,980 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-09 14:14:38,980 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-09 14:14:38,981 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-09 14:14:38,981 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-09 14:14:38,981 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-09 14:14:38,982 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-09 14:14:38,983 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-09 14:14:39,008 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-09 14:14:39,019 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-09 14:14:39,023 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-09 14:14:39,025 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-09 14:14:39,026 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-09 14:14:39,027 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/LockingExampleArray.bpl [2019-08-09 14:14:39,027 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/LockingExampleArray.bpl' [2019-08-09 14:14:39,053 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-09 14:14:39,054 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-08-09 14:14:39,055 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-09 14:14:39,055 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-09 14:14:39,055 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-09 14:14:39,078 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "LockingExampleArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.08 02:14:39" (1/1) ... [2019-08-09 14:14:39,079 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "LockingExampleArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.08 02:14:39" (1/1) ... [2019-08-09 14:14:39,087 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "LockingExampleArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.08 02:14:39" (1/1) ... [2019-08-09 14:14:39,087 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "LockingExampleArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.08 02:14:39" (1/1) ... [2019-08-09 14:14:39,090 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "LockingExampleArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.08 02:14:39" (1/1) ... [2019-08-09 14:14:39,097 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "LockingExampleArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.08 02:14:39" (1/1) ... [2019-08-09 14:14:39,098 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "LockingExampleArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.08 02:14:39" (1/1) ... [2019-08-09 14:14:39,099 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-09 14:14:39,100 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-09 14:14:39,100 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-09 14:14:39,101 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-09 14:14:39,102 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "LockingExampleArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.08 02:14:39" (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:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-08-09 14:14:39,163 INFO L124 BoogieDeclarations]: Specification and implementation of procedure lockingEx given in one single declaration [2019-08-09 14:14:39,163 INFO L130 BoogieDeclarations]: Found specification of procedure lockingEx [2019-08-09 14:14:39,163 INFO L138 BoogieDeclarations]: Found implementation of procedure lockingEx [2019-08-09 14:14:39,363 INFO L275 CfgBuilder]: Using library mode [2019-08-09 14:14:39,363 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-08-09 14:14:39,368 INFO L202 PluginConnector]: Adding new model LockingExampleArray.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.08 02:14:39 BoogieIcfgContainer [2019-08-09 14:14:39,369 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-09 14:14:39,369 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-09 14:14:39,369 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-09 14:14:39,370 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-09 14:14:39,370 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "LockingExampleArray.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.08 02:14:39" (1/1) ... [2019-08-09 14:14:40,109 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 25 [2019-08-09 14:14:40,122 WARN L88 terpretationObserver]: Some locations of interest might be reachable, see reported results. [2019-08-09 14:14:40,130 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-09 14:14:40,133 INFO L168 Benchmark]: Toolchain (without parser) took 1077.63 ms. Allocated memory was 131.6 MB in the beginning and 173.5 MB in the end (delta: 41.9 MB). Free memory was 106.7 MB in the beginning and 146.4 MB in the end (delta: -39.7 MB). Peak memory consumption was 54.3 MB. Max. memory is 7.1 GB. [2019-08-09 14:14:40,135 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 ms. Allocated memory is still 131.6 MB. Free memory was 108.0 MB in the beginning and 107.7 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-08-09 14:14:40,137 INFO L168 Benchmark]: Boogie Preprocessor took 45.20 ms. Allocated memory is still 131.6 MB. Free memory was 106.7 MB in the beginning and 104.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2019-08-09 14:14:40,139 INFO L168 Benchmark]: RCFGBuilder took 268.49 ms. Allocated memory is still 131.6 MB. Free memory was 104.5 MB in the beginning and 94.0 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. [2019-08-09 14:14:40,141 INFO L168 Benchmark]: Symbolic Interpretation took 761.22 ms. Allocated memory was 131.6 MB in the beginning and 173.5 MB in the end (delta: 41.9 MB). Free memory was 94.0 MB in the beginning and 146.4 MB in the end (delta: -52.4 MB). Peak memory consumption was 41.7 MB. Max. memory is 7.1 GB. [2019-08-09 14:14:40,151 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - UnprovableResult [Line: 21]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: Interpreter reached this location of interest. Location might be reachable. Predicate is 14#(and (or (and (not (= (select lockingEx_a lockingEx_new) (select lockingEx_a lockingEx_auld))) (or (and (= (select lockingEx_a lockingEx_new) (select lockingEx_a lockingEx_auld)) (not (= lockingEx_new lockingEx_L)) (not (= lockingEx_auld lockingEx_L)) (not (= lockingEx_auld lockingEx_new)) (= (select lockingEx_a lockingEx_L) 1)) (and (not (= lockingEx_new lockingEx_L)) (not (= lockingEx_auld lockingEx_L)) (= (select lockingEx_a lockingEx_new) (+ (select lockingEx_a lockingEx_auld) 1)) (= (select lockingEx_a lockingEx_L) 0)))) (and (not (= lockingEx_new lockingEx_L)) (not (= lockingEx_auld lockingEx_L)) (not (= lockingEx_auld lockingEx_new)) (= (select lockingEx_a lockingEx_L) 0))) (= (select lockingEx_a lockingEx_L) 1)). Possible FailurePath: * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.20 ms. Allocated memory is still 131.6 MB. Free memory was 108.0 MB in the beginning and 107.7 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * Boogie Preprocessor took 45.20 ms. Allocated memory is still 131.6 MB. Free memory was 106.7 MB in the beginning and 104.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 268.49 ms. Allocated memory is still 131.6 MB. Free memory was 104.5 MB in the beginning and 94.0 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 761.22 ms. Allocated memory was 131.6 MB in the beginning and 173.5 MB in the end (delta: 41.9 MB). Free memory was 94.0 MB in the beginning and 146.4 MB in the end (delta: -52.4 MB). Peak memory consumption was 41.7 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...