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/recursive/regression/bpl/lockingExample-incorrect.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-3b9210c [2019-08-06 16:57:55,445 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-06 16:57:55,447 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-06 16:57:55,459 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-06 16:57:55,459 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-06 16:57:55,460 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-06 16:57:55,462 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-06 16:57:55,464 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-06 16:57:55,465 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-06 16:57:55,466 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-06 16:57:55,467 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-06 16:57:55,469 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-06 16:57:55,469 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-06 16:57:55,470 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-06 16:57:55,471 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-06 16:57:55,472 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-06 16:57:55,473 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-06 16:57:55,474 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-06 16:57:55,479 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-06 16:57:55,482 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-06 16:57:55,487 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-06 16:57:55,491 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-06 16:57:55,492 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-06 16:57:55,493 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-06 16:57:55,497 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-06 16:57:55,497 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-06 16:57:55,497 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-06 16:57:55,499 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-06 16:57:55,500 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-06 16:57:55,501 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-06 16:57:55,502 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-06 16:57:55,503 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-06 16:57:55,504 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-06 16:57:55,506 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-06 16:57:55,508 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-06 16:57:55,508 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-06 16:57:55,509 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-06 16:57:55,509 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-06 16:57:55,510 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-06 16:57:55,511 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-06 16:57:55,511 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-06 16:57:55,559 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-06 16:57:55,579 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-06 16:57:55,583 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-06 16:57:55,585 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-06 16:57:55,586 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-06 16:57:55,587 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/recursive/regression/bpl/lockingExample-incorrect.bpl [2019-08-06 16:57:55,587 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/recursive/regression/bpl/lockingExample-incorrect.bpl' [2019-08-06 16:57:55,625 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-06 16:57:55,626 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-08-06 16:57:55,627 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-06 16:57:55,627 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-06 16:57:55,627 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-06 16:57:55,654 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "lockingExample-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:57:55" (1/1) ... [2019-08-06 16:57:55,656 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "lockingExample-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:57:55" (1/1) ... [2019-08-06 16:57:55,663 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "lockingExample-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:57:55" (1/1) ... [2019-08-06 16:57:55,664 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "lockingExample-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:57:55" (1/1) ... [2019-08-06 16:57:55,667 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "lockingExample-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:57:55" (1/1) ... [2019-08-06 16:57:55,674 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "lockingExample-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:57:55" (1/1) ... [2019-08-06 16:57:55,675 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "lockingExample-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:57:55" (1/1) ... [2019-08-06 16:57:55,677 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-06 16:57:55,677 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-06 16:57:55,678 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-06 16:57:55,678 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-06 16:57:55,679 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "lockingExample-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:57:55" (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 [2019-08-06 16:57:55,747 INFO L130 BoogieDeclarations]: Found specification of procedure Main [2019-08-06 16:57:55,748 INFO L138 BoogieDeclarations]: Found implementation of procedure Main [2019-08-06 16:57:55,748 INFO L130 BoogieDeclarations]: Found specification of procedure lock [2019-08-06 16:57:55,748 INFO L138 BoogieDeclarations]: Found implementation of procedure lock [2019-08-06 16:57:55,748 INFO L130 BoogieDeclarations]: Found specification of procedure unlock [2019-08-06 16:57:55,748 INFO L138 BoogieDeclarations]: Found implementation of procedure unlock [2019-08-06 16:57:55,826 WARN L731 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-08-06 16:57:55,861 WARN L731 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-08-06 16:57:55,874 WARN L731 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-08-06 16:57:56,081 INFO L275 CfgBuilder]: Using library mode [2019-08-06 16:57:56,082 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-08-06 16:57:56,083 INFO L202 PluginConnector]: Adding new model lockingExample-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.08 04:57:56 BoogieIcfgContainer [2019-08-06 16:57:56,083 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-06 16:57:56,083 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-06 16:57:56,083 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-06 16:57:56,084 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-06 16:57:56,084 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "lockingExample-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.08 04:57:56" (1/1) ... [2019-08-06 16:57:56,097 INFO L148 IcfgInterpreter]: Started Sifa with 3 locations of interest [2019-08-06 16:57:56,100 INFO L155 IcfgInterpreter]: Building call graph [2019-08-06 16:57:56,107 INFO L160 IcfgInterpreter]: Initial procedures are [Main] [2019-08-06 16:57:56,115 INFO L165 IcfgInterpreter]: Starting interpretation [2019-08-06 16:57:56,117 INFO L185 IcfgInterpreter]: Interpreting procedure Main with input of size 1 [2019-08-06 16:57:56,277 INFO L169 IcfgInterpreter]: Interpretation finished [2019-08-06 16:57:56,278 INFO L177 IcfgInterpreter]: Final predicates for locations of interest are: [2019-08-06 16:57:56,281 INFO L179 IcfgInterpreter]: Location MainErr1REQUIRES_VIOLATIONPRE_CONDITION has predicate 70#false [2019-08-06 16:57:56,281 INFO L179 IcfgInterpreter]: Location MainErr2ASSERT_VIOLATIONASSERT has predicate 67#(and (not (= 0 lock)) (or (and (= Main_new (+ Main_auld 1)) (exists ((v_Main_auld_5 Int)) (and (not (= v_Main_auld_5 Main_auld)) (or (= v_Main_auld_5 Main_auld) (= (+ v_Main_auld_5 1) Main_auld)))) (= Main_new Main_auld) (= 0 lock)) (and (= 1 lock) (exists ((v_Main_auld_5 Int)) (and (or (= v_Main_auld_5 Main_new) (= Main_new (+ v_Main_auld_5 1))) (not (= v_Main_auld_5 Main_new)))) (= Main_new Main_auld))) (= 0 counter)) [2019-08-06 16:57:56,282 INFO L179 IcfgInterpreter]: Location MainErr0REQUIRES_VIOLATIONPRE_CONDITION has predicate 61#(and (not (= 0 lock)) (or (and (not (= Main_new Main_auld)) (= Main_new (+ Main_auld 1)) (exists ((v_Main_auld_5 Int)) (and (not (= v_Main_auld_5 Main_auld)) (or (= v_Main_auld_5 Main_auld) (= (+ v_Main_auld_5 1) Main_auld)))) (= 0 lock)) (and (= 0 counter) (= 0 lock)))) [2019-08-06 16:57:56,283 WARN L88 terpretationObserver]: Some locations of interest might be reachable, see reported results. [2019-08-06 16:57:56,291 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-06 16:57:56,294 INFO L168 Benchmark]: Toolchain (without parser) took 666.52 ms. Allocated memory is still 133.2 MB. Free memory was 109.5 MB in the beginning and 87.7 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2019-08-06 16:57:56,295 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 133.2 MB. Free memory is still 110.4 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-08-06 16:57:56,296 INFO L168 Benchmark]: Boogie Preprocessor took 49.91 ms. Allocated memory is still 133.2 MB. Free memory was 109.5 MB in the beginning and 107.3 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2019-08-06 16:57:56,297 INFO L168 Benchmark]: RCFGBuilder took 405.61 ms. Allocated memory is still 133.2 MB. Free memory was 107.3 MB in the beginning and 95.3 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 7.1 GB. [2019-08-06 16:57:56,299 INFO L168 Benchmark]: Symbolic Interpretation took 207.82 ms. Allocated memory is still 133.2 MB. Free memory was 95.3 MB in the beginning and 87.7 MB in the end (delta: 7.6 MB). Peak memory consumption was 7.6 MB. Max. memory is 7.1 GB. [2019-08-06 16:57:56,302 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - PositiveResult [Line: 32]: procedure precondition always holds For all program executions holds that procedure precondition always holds at this location - UnprovableResult [Line: 36]: 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.. Possible FailurePath: - UnprovableResult [Line: 29]: Unable to prove that procedure precondition always holds Unable to prove that procedure precondition always holds Reason: Interpreter reached this location of interest. Location might be reachable.. Possible FailurePath: * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 133.2 MB. Free memory is still 110.4 MB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 49.91 ms. Allocated memory is still 133.2 MB. Free memory was 109.5 MB in the beginning and 107.3 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 405.61 ms. Allocated memory is still 133.2 MB. Free memory was 107.3 MB in the beginning and 95.3 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 207.82 ms. Allocated memory is still 133.2 MB. Free memory was 95.3 MB in the beginning and 87.7 MB in the end (delta: 7.6 MB). Peak memory consumption was 7.6 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...