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-b8c145f [2019-08-05 12:04:40,030 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 12:04:40,033 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 12:04:40,048 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 12:04:40,049 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 12:04:40,051 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 12:04:40,052 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 12:04:40,055 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 12:04:40,057 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 12:04:40,061 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 12:04:40,062 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 12:04:40,062 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 12:04:40,063 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 12:04:40,064 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 12:04:40,067 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 12:04:40,077 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 12:04:40,078 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 12:04:40,079 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 12:04:40,081 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 12:04:40,082 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 12:04:40,084 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 12:04:40,086 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 12:04:40,088 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 12:04:40,090 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 12:04:40,092 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 12:04:40,093 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 12:04:40,093 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 12:04:40,096 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 12:04:40,097 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 12:04:40,098 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 12:04:40,101 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 12:04:40,102 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 12:04:40,103 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 12:04:40,104 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 12:04:40,107 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 12:04:40,107 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 12:04:40,108 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 12:04:40,108 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 12:04:40,108 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 12:04:40,111 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 12:04:40,111 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 12:04:40,165 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 12:04:40,176 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 12:04:40,180 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 12:04:40,181 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 12:04:40,182 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 12:04:40,183 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/recursive/regression/bpl/lockingExample-incorrect.bpl [2019-08-05 12:04:40,183 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/recursive/regression/bpl/lockingExample-incorrect.bpl' [2019-08-05 12:04:40,218 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 12:04:40,220 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-08-05 12:04:40,221 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 12:04:40,221 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 12:04:40,221 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 12:04:40,246 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 12:04:40" (1/1) ... [2019-08-05 12:04:40,248 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 12:04:40" (1/1) ... [2019-08-05 12:04:40,255 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 12:04:40" (1/1) ... [2019-08-05 12:04:40,256 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 12:04:40" (1/1) ... [2019-08-05 12:04:40,259 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 12:04:40" (1/1) ... [2019-08-05 12:04:40,264 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 12:04:40" (1/1) ... [2019-08-05 12:04:40,265 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 12:04:40" (1/1) ... [2019-08-05 12:04:40,267 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 12:04:40,268 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 12:04:40,268 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 12:04:40,268 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 12:04:40,269 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "lockingExample-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:04:40" (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 12:04:40,345 INFO L130 BoogieDeclarations]: Found specification of procedure Main [2019-08-05 12:04:40,346 INFO L138 BoogieDeclarations]: Found implementation of procedure Main [2019-08-05 12:04:40,346 INFO L130 BoogieDeclarations]: Found specification of procedure lock [2019-08-05 12:04:40,346 INFO L138 BoogieDeclarations]: Found implementation of procedure lock [2019-08-05 12:04:40,346 INFO L130 BoogieDeclarations]: Found specification of procedure unlock [2019-08-05 12:04:40,346 INFO L138 BoogieDeclarations]: Found implementation of procedure unlock [2019-08-05 12:04:40,426 WARN L731 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-08-05 12:04:40,505 WARN L731 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-08-05 12:04:40,553 WARN L731 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-08-05 12:04:40,811 INFO L275 CfgBuilder]: Using library mode [2019-08-05 12:04:40,811 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-08-05 12:04:40,812 INFO L202 PluginConnector]: Adding new model lockingExample-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 12:04:40 BoogieIcfgContainer [2019-08-05 12:04:40,812 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 12:04:40,813 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-05 12:04:40,813 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-05 12:04:40,813 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-05 12:04:40,815 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 12:04:40" (1/1) ... [2019-08-05 12:04:40,827 INFO L148 IcfgInterpreter]: Started Sifa with 3 locations of interest [2019-08-05 12:04:40,830 INFO L155 IcfgInterpreter]: Building call graph [2019-08-05 12:04:40,837 INFO L160 IcfgInterpreter]: Initial procedures are [Main] [2019-08-05 12:04:40,846 INFO L165 IcfgInterpreter]: Starting interpretation [2019-08-05 12:04:40,848 INFO L184 IcfgInterpreter]: Interpreting procedure Main with input of size 1 [2019-08-05 12:04:41,059 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2019-08-05 12:04:41,373 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2019-08-05 12:04:41,588 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 18 [2019-08-05 12:04:41,882 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2019-08-05 12:04:42,189 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 26 [2019-08-05 12:04:42,356 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2019-08-05 12:04:42,494 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 8 [2019-08-05 12:04:42,639 INFO L169 IcfgInterpreter]: Interpretation finished [2019-08-05 12:04:42,639 INFO L176 IcfgInterpreter]: Final predicates for locations of interest are: [2019-08-05 12:04:42,642 INFO L178 IcfgInterpreter]: Location MainErr0REQUIRES_VIOLATIONPRE_CONDITION has predicate 79#false [2019-08-05 12:04:42,642 INFO L178 IcfgInterpreter]: Location MainErr2ASSERT_VIOLATIONASSERT has predicate 73#(and (= 1 lock) (= 0 counter) (= Main_new Main_auld)) [2019-08-05 12:04:42,643 INFO L178 IcfgInterpreter]: Location MainErr1REQUIRES_VIOLATIONPRE_CONDITION has predicate 82#false [2019-08-05 12:04:42,652 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-05 12:04:42,654 INFO L168 Benchmark]: Toolchain (without parser) took 2433.47 ms. Allocated memory was 141.6 MB in the beginning and 176.2 MB in the end (delta: 34.6 MB). Free memory was 109.9 MB in the beginning and 122.2 MB in the end (delta: -12.3 MB). Peak memory consumption was 53.8 MB. Max. memory is 7.1 GB. [2019-08-05 12:04:42,655 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.22 ms. Allocated memory is still 141.6 MB. Free memory was 111.1 MB in the beginning and 110.9 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-08-05 12:04:42,656 INFO L168 Benchmark]: Boogie Preprocessor took 46.36 ms. Allocated memory is still 141.6 MB. Free memory was 109.9 MB in the beginning and 107.6 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2019-08-05 12:04:42,657 INFO L168 Benchmark]: RCFGBuilder took 545.02 ms. Allocated memory is still 141.6 MB. Free memory was 107.6 MB in the beginning and 95.8 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 7.1 GB. [2019-08-05 12:04:42,659 INFO L168 Benchmark]: Symbolic Interpretation took 1838.98 ms. Allocated memory was 141.6 MB in the beginning and 176.2 MB in the end (delta: 34.6 MB). Free memory was 95.8 MB in the beginning and 122.2 MB in the end (delta: -26.4 MB). Peak memory consumption was 39.8 MB. Max. memory is 7.1 GB. [2019-08-05 12:04:42,663 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - PositiveResult [Line: 29]: 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: - 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 0.22 ms. Allocated memory is still 141.6 MB. Free memory was 111.1 MB in the beginning and 110.9 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * Boogie Preprocessor took 46.36 ms. Allocated memory is still 141.6 MB. Free memory was 109.9 MB in the beginning and 107.6 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 545.02 ms. Allocated memory is still 141.6 MB. Free memory was 107.6 MB in the beginning and 95.8 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 1838.98 ms. Allocated memory was 141.6 MB in the beginning and 176.2 MB in the end (delta: 34.6 MB). Free memory was 95.8 MB in the beginning and 122.2 MB in the end (delta: -26.4 MB). Peak memory consumption was 39.8 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...