java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AbstractInterpretationInline.xml -s ../../../trunk/examples/settings/ai/array-bench/reach_32bit_compound_exp_cong.epf -i ../../../trunk/examples/programs/recursive/regression/bpl/lockingExample-incorrect.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 12:18:00,178 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 12:18:00,180 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 12:18:00,192 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-08-05 12:18:00,230 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/array-bench/reach_32bit_compound_exp_cong.epf [2019-08-05 12:18:00,246 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-05 12:18:00,246 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-05 12:18:00,247 INFO L136 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2019-08-05 12:18:00,247 INFO L138 SettingsManager]: * Show backtranslation warnings=false [2019-08-05 12:18:00,248 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-08-05 12:18:00,248 INFO L138 SettingsManager]: * User list type=DISABLED [2019-08-05 12:18:00,250 INFO L138 SettingsManager]: * Inline calls to unimplemented procedures=true [2019-08-05 12:18:00,250 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-08-05 12:18:00,250 INFO L138 SettingsManager]: * Explicit value domain=true [2019-08-05 12:18:00,250 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-08-05 12:18:00,250 INFO L138 SettingsManager]: * Octagon Domain=false [2019-08-05 12:18:00,251 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-08-05 12:18:00,251 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-08-05 12:18:00,251 INFO L138 SettingsManager]: * Interval Domain=false [2019-08-05 12:18:00,254 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-05 12:18:00,254 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-05 12:18:00,254 INFO L138 SettingsManager]: * Use SBE=true [2019-08-05 12:18:00,255 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-05 12:18:00,256 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-05 12:18:00,256 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-05 12:18:00,256 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-05 12:18:00,256 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-05 12:18:00,256 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-05 12:18:00,256 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-05 12:18:00,257 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-05 12:18:00,257 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-05 12:18:00,258 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-05 12:18:00,258 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-05 12:18:00,258 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-05 12:18:00,258 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-05 12:18:00,258 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-05 12:18:00,259 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-05 12:18:00,259 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-05 12:18:00,259 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-05 12:18:00,259 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-05 12:18:00,260 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-08-05 12:18:00,260 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-05 12:18:00,260 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-05 12:18:00,260 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-05 12:18:00,260 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-08-05 12:18:00,305 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 12:18:00,322 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 12:18:00,326 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 12:18:00,327 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 12:18:00,328 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 12:18:00,328 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/recursive/regression/bpl/lockingExample-incorrect.bpl [2019-08-05 12:18:00,329 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/recursive/regression/bpl/lockingExample-incorrect.bpl' [2019-08-05 12:18:00,362 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 12:18:00,364 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 12:18:00,365 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 12:18:00,365 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 12:18:00,365 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 12:18:00,381 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "lockingExample-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:18:00" (1/1) ... [2019-08-05 12:18:00,391 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "lockingExample-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:18:00" (1/1) ... [2019-08-05 12:18:00,398 WARN L165 Inliner]: Program contained no entry procedure! [2019-08-05 12:18:00,398 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2019-08-05 12:18:00,398 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2019-08-05 12:18:00,411 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 12:18:00,412 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 12:18:00,412 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 12:18:00,413 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 12:18:00,423 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 12:18:00" (1/1) ... [2019-08-05 12:18:00,424 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 12:18:00" (1/1) ... [2019-08-05 12:18:00,425 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 12:18:00" (1/1) ... [2019-08-05 12:18:00,425 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 12:18:00" (1/1) ... [2019-08-05 12:18:00,427 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 12:18:00" (1/1) ... [2019-08-05 12:18:00,432 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 12:18:00" (1/1) ... [2019-08-05 12:18:00,433 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 12:18:00" (1/1) ... [2019-08-05 12:18:00,434 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 12:18:00,435 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 12:18:00,435 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 12:18:00,435 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 12:18:00,436 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "lockingExample-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:18:00" (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 [2019-08-05 12:18:00,511 INFO L130 BoogieDeclarations]: Found specification of procedure unlock [2019-08-05 12:18:00,511 INFO L138 BoogieDeclarations]: Found implementation of procedure unlock [2019-08-05 12:18:00,512 INFO L130 BoogieDeclarations]: Found specification of procedure lock [2019-08-05 12:18:00,512 INFO L138 BoogieDeclarations]: Found implementation of procedure lock [2019-08-05 12:18:00,512 INFO L130 BoogieDeclarations]: Found specification of procedure Main [2019-08-05 12:18:00,512 INFO L138 BoogieDeclarations]: Found implementation of procedure Main [2019-08-05 12:18:00,586 WARN L731 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-08-05 12:18:00,650 WARN L731 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-08-05 12:18:00,697 WARN L731 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-08-05 12:18:00,870 INFO L275 CfgBuilder]: Using library mode [2019-08-05 12:18:00,871 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-08-05 12:18:00,872 INFO L202 PluginConnector]: Adding new model lockingExample-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 12:18:00 BoogieIcfgContainer [2019-08-05 12:18:00,872 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 12:18:00,873 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-08-05 12:18:00,873 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-08-05 12:18:00,874 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-08-05 12:18:00,875 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "lockingExample-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 12:18:00" (1/1) ... [2019-08-05 12:18:00,924 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2019-08-05 12:18:01,085 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-08-05 12:18:01,104 INFO L272 AbstractInterpreter]: Visited 21 different actions 49 times. Merged at 11 different actions 18 times. Never widened. Performed 154 root evaluator evaluations with a maximum evaluation depth of 5. Performed 154 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 6 fixpoints after 4 different actions. Largest state had 0 variables. [2019-08-05 12:18:01,104 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-08-05 12:18:01,108 INFO L168 Benchmark]: Toolchain (without parser) took 742.45 ms. Allocated memory is still 138.9 MB. Free memory was 103.7 MB in the beginning and 81.6 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. [2019-08-05 12:18:01,109 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 138.9 MB. Free memory is still 104.6 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-08-05 12:18:01,110 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.16 ms. Allocated memory is still 138.9 MB. Free memory was 103.3 MB in the beginning and 101.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-08-05 12:18:01,111 INFO L168 Benchmark]: Boogie Preprocessor took 22.27 ms. Allocated memory is still 138.9 MB. Free memory was 101.2 MB in the beginning and 100.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-08-05 12:18:01,113 INFO L168 Benchmark]: RCFGBuilder took 437.75 ms. Allocated memory is still 138.9 MB. Free memory was 100.0 MB in the beginning and 89.7 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2019-08-05 12:18:01,114 INFO L168 Benchmark]: Abstract Interpretation took 230.99 ms. Allocated memory is still 138.9 MB. Free memory was 89.7 MB in the beginning and 81.6 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 7.1 GB. [2019-08-05 12:18:01,119 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * 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 138.9 MB. Free memory is still 104.6 MB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 47.16 ms. Allocated memory is still 138.9 MB. Free memory was 103.3 MB in the beginning and 101.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 22.27 ms. Allocated memory is still 138.9 MB. Free memory was 101.2 MB in the beginning and 100.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 437.75 ms. Allocated memory is still 138.9 MB. Free memory was 100.0 MB in the beginning and 89.7 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 230.99 ms. Allocated memory is still 138.9 MB. Free memory was 89.7 MB in the beginning and 81.6 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 36]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L17-L19] requires lock == 0; [L26] counter := 0; [L44-L46] requires lock == 0; [L49] lock := 1; [L30] auld := new; [L35] COND TRUE new == auld [L36] assert counter != 0 || lock == 0; - UnprovableResult [Line: 44]: Unable to prove that procedure precondition always holds and assertion always holds Unable to prove that procedure precondition always holds and assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L17-L19] requires lock == 0; [L26] counter := 0; [L44-L46] requires lock == 0; [L49] lock := 1; [L30] auld := new; [L35] COND FALSE !(new == auld) [L39] counter := counter + 1; [L44-L46] requires lock == 0; - PositiveResult [Line: 53]: procedure precondition always holds and assertion always holds For all program executions holds that procedure precondition always holds and assertion always holds at this location RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...