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-b03553c [2019-08-05 18:15:03,153 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 18:15:03,156 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 18:15:03,168 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 18:15:03,168 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 18:15:03,169 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 18:15:03,171 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 18:15:03,173 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 18:15:03,175 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 18:15:03,176 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 18:15:03,177 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 18:15:03,178 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 18:15:03,178 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 18:15:03,179 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 18:15:03,180 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 18:15:03,181 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 18:15:03,182 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 18:15:03,183 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 18:15:03,185 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 18:15:03,187 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 18:15:03,189 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 18:15:03,190 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 18:15:03,191 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 18:15:03,192 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 18:15:03,195 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-05 18:15:03,198 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 18:15:03,199 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 18:15:03,200 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 18:15:03,200 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 18:15:03,202 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 18:15:03,202 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 18:15:03,203 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 18:15:03,203 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 18:15:03,203 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 18:15:03,206 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 18:15:03,207 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 18:15:03,242 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 18:15:03,254 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 18:15:03,257 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 18:15:03,259 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 18:15:03,260 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 18:15:03,260 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/recursive/regression/bpl/lockingExample-incorrect.bpl [2019-08-05 18:15:03,261 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/recursive/regression/bpl/lockingExample-incorrect.bpl' [2019-08-05 18:15:03,295 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 18:15:03,297 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-08-05 18:15:03,297 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 18:15:03,297 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 18:15:03,298 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 18:15:03,321 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "lockingExample-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:15:03" (1/1) ... [2019-08-05 18:15:03,323 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "lockingExample-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:15:03" (1/1) ... [2019-08-05 18:15:03,330 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "lockingExample-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:15:03" (1/1) ... [2019-08-05 18:15:03,331 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "lockingExample-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:15:03" (1/1) ... [2019-08-05 18:15:03,334 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "lockingExample-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:15:03" (1/1) ... [2019-08-05 18:15:03,339 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "lockingExample-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:15:03" (1/1) ... [2019-08-05 18:15:03,340 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "lockingExample-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:15:03" (1/1) ... [2019-08-05 18:15:03,341 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 18:15:03,342 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 18:15:03,343 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 18:15:03,343 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 18:15:03,344 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "lockingExample-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:15:03" (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: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 [2019-08-05 18:15:03,412 INFO L130 BoogieDeclarations]: Found specification of procedure Main [2019-08-05 18:15:03,412 INFO L138 BoogieDeclarations]: Found implementation of procedure Main [2019-08-05 18:15:03,412 INFO L130 BoogieDeclarations]: Found specification of procedure lock [2019-08-05 18:15:03,412 INFO L138 BoogieDeclarations]: Found implementation of procedure lock [2019-08-05 18:15:03,413 INFO L130 BoogieDeclarations]: Found specification of procedure unlock [2019-08-05 18:15:03,413 INFO L138 BoogieDeclarations]: Found implementation of procedure unlock [2019-08-05 18:15:03,491 WARN L731 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-08-05 18:15:03,560 WARN L731 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-08-05 18:15:03,607 WARN L731 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-08-05 18:15:03,886 INFO L275 CfgBuilder]: Using library mode [2019-08-05 18:15:03,887 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-08-05 18:15:03,888 INFO L202 PluginConnector]: Adding new model lockingExample-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 06:15:03 BoogieIcfgContainer [2019-08-05 18:15:03,888 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 18:15:03,889 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-05 18:15:03,889 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-05 18:15:03,889 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-05 18:15:03,890 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "lockingExample-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 06:15:03" (1/1) ... [2019-08-05 18:15:03,907 INFO L148 IcfgInterpreter]: Started Sifa with 3 locations of interest [2019-08-05 18:15:03,912 INFO L155 IcfgInterpreter]: Building call graph [2019-08-05 18:15:03,922 INFO L160 IcfgInterpreter]: Initial procedures are [Main] [2019-08-05 18:15:03,931 INFO L165 IcfgInterpreter]: Starting interpretation [2019-08-05 18:15:03,933 INFO L185 IcfgInterpreter]: Interpreting procedure Main with input of size 1 [2019-08-05 18:15:04,071 INFO L169 IcfgInterpreter]: Interpretation finished [2019-08-05 18:15:04,071 INFO L177 IcfgInterpreter]: Final predicates for locations of interest are: [2019-08-05 18:15:04,083 INFO L179 IcfgInterpreter]: Location MainErr0REQUIRES_VIOLATIONPRE_CONDITION has predicate 67#(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)))) [2019-08-05 18:15:04,084 INFO L179 IcfgInterpreter]: Location MainErr2ASSERT_VIOLATIONASSERT has predicate 61#(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)) [2019-08-05 18:15:04,084 INFO L179 IcfgInterpreter]: Location MainErr1REQUIRES_VIOLATIONPRE_CONDITION has predicate 70#false [2019-08-05 18:15:04,086 WARN L88 terpretationObserver]: Some locations of interest might be reachable, see reported results. [2019-08-05 18:15:04,103 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-05 18:15:04,107 INFO L168 Benchmark]: Toolchain (without parser) took 808.76 ms. Allocated memory is still 133.7 MB. Free memory was 110.0 MB in the beginning and 88.3 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2019-08-05 18:15:04,108 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 133.7 MB. Free memory is still 110.9 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-08-05 18:15:04,110 INFO L168 Benchmark]: Boogie Preprocessor took 44.56 ms. Allocated memory is still 133.7 MB. Free memory was 110.0 MB in the beginning and 107.5 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. [2019-08-05 18:15:04,111 INFO L168 Benchmark]: RCFGBuilder took 545.84 ms. Allocated memory is still 133.7 MB. Free memory was 107.5 MB in the beginning and 95.8 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 7.1 GB. [2019-08-05 18:15:04,113 INFO L168 Benchmark]: Symbolic Interpretation took 214.93 ms. Allocated memory is still 133.7 MB. Free memory was 95.8 MB in the beginning and 88.3 MB in the end (delta: 7.6 MB). Peak memory consumption was 7.6 MB. Max. memory is 7.1 GB. [2019-08-05 18:15:04,120 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - 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: - 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: - PositiveResult [Line: 32]: procedure precondition always holds For all program executions holds that procedure precondition always holds at this location * 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 133.7 MB. Free memory is still 110.9 MB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 44.56 ms. Allocated memory is still 133.7 MB. Free memory was 110.0 MB in the beginning and 107.5 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 545.84 ms. Allocated memory is still 133.7 MB. Free memory was 107.5 MB in the beginning and 95.8 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 214.93 ms. Allocated memory is still 133.7 MB. Free memory was 95.8 MB in the beginning and 88.3 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...