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-correct.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 12:18:02,566 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 12:18:02,568 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 12:18:02,579 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-08-05 12:18:02,614 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 12:18:02,626 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-05 12:18:02,626 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-05 12:18:02,627 INFO L136 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2019-08-05 12:18:02,627 INFO L138 SettingsManager]: * Show backtranslation warnings=false [2019-08-05 12:18:02,627 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-08-05 12:18:02,628 INFO L138 SettingsManager]: * User list type=DISABLED [2019-08-05 12:18:02,628 INFO L138 SettingsManager]: * Inline calls to unimplemented procedures=true [2019-08-05 12:18:02,628 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-08-05 12:18:02,628 INFO L138 SettingsManager]: * Explicit value domain=true [2019-08-05 12:18:02,628 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-08-05 12:18:02,629 INFO L138 SettingsManager]: * Octagon Domain=false [2019-08-05 12:18:02,629 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-08-05 12:18:02,629 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-08-05 12:18:02,629 INFO L138 SettingsManager]: * Interval Domain=false [2019-08-05 12:18:02,630 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-05 12:18:02,630 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-05 12:18:02,630 INFO L138 SettingsManager]: * Use SBE=true [2019-08-05 12:18:02,630 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-05 12:18:02,631 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-05 12:18:02,631 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-05 12:18:02,631 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-05 12:18:02,631 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-05 12:18:02,631 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-05 12:18:02,632 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-05 12:18:02,632 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-05 12:18:02,632 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-05 12:18:02,633 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-05 12:18:02,633 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-05 12:18:02,633 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-05 12:18:02,634 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-05 12:18:02,634 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-05 12:18:02,635 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-05 12:18:02,635 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-05 12:18:02,636 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-05 12:18:02,636 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-05 12:18:02,636 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-08-05 12:18:02,636 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-05 12:18:02,637 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-05 12:18:02,637 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-05 12:18:02,637 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-08-05 12:18:02,670 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 12:18:02,682 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 12:18:02,685 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 12:18:02,686 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 12:18:02,687 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 12:18:02,688 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/recursive/regression/bpl/lockingExample-correct.bpl [2019-08-05 12:18:02,688 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/recursive/regression/bpl/lockingExample-correct.bpl' [2019-08-05 12:18:02,718 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 12:18:02,719 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 12:18:02,720 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 12:18:02,720 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 12:18:02,721 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 12:18:02,736 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "lockingExample-correct.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:18:02" (1/1) ... [2019-08-05 12:18:02,745 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "lockingExample-correct.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:18:02" (1/1) ... [2019-08-05 12:18:02,752 WARN L165 Inliner]: Program contained no entry procedure! [2019-08-05 12:18:02,752 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2019-08-05 12:18:02,752 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2019-08-05 12:18:02,765 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 12:18:02,766 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 12:18:02,766 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 12:18:02,767 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 12:18:02,777 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "lockingExample-correct.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:18:02" (1/1) ... [2019-08-05 12:18:02,778 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "lockingExample-correct.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:18:02" (1/1) ... [2019-08-05 12:18:02,778 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "lockingExample-correct.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:18:02" (1/1) ... [2019-08-05 12:18:02,779 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "lockingExample-correct.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:18:02" (1/1) ... [2019-08-05 12:18:02,781 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "lockingExample-correct.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:18:02" (1/1) ... [2019-08-05 12:18:02,785 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "lockingExample-correct.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:18:02" (1/1) ... [2019-08-05 12:18:02,786 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "lockingExample-correct.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:18:02" (1/1) ... [2019-08-05 12:18:02,787 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 12:18:02,788 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 12:18:02,788 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 12:18:02,788 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 12:18:02,789 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "lockingExample-correct.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:18:02" (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 12:18:02,855 INFO L130 BoogieDeclarations]: Found specification of procedure unlock [2019-08-05 12:18:02,855 INFO L138 BoogieDeclarations]: Found implementation of procedure unlock [2019-08-05 12:18:02,856 INFO L130 BoogieDeclarations]: Found specification of procedure lock [2019-08-05 12:18:02,856 INFO L138 BoogieDeclarations]: Found implementation of procedure lock [2019-08-05 12:18:02,856 INFO L130 BoogieDeclarations]: Found specification of procedure Main [2019-08-05 12:18:02,856 INFO L138 BoogieDeclarations]: Found implementation of procedure Main [2019-08-05 12:18:02,924 WARN L731 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-08-05 12:18:02,997 WARN L731 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-08-05 12:18:03,039 WARN L731 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-08-05 12:18:03,141 INFO L275 CfgBuilder]: Using library mode [2019-08-05 12:18:03,141 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-08-05 12:18:03,143 INFO L202 PluginConnector]: Adding new model lockingExample-correct.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 12:18:03 BoogieIcfgContainer [2019-08-05 12:18:03,143 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 12:18:03,144 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-08-05 12:18:03,144 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-08-05 12:18:03,144 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-08-05 12:18:03,145 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "lockingExample-correct.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 12:18:03" (1/1) ... [2019-08-05 12:18:03,176 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2019-08-05 12:18:03,278 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-08-05 12:18:03,300 INFO L272 AbstractInterpreter]: Visited 18 different actions 24 times. Merged at 4 different actions 4 times. Never widened. Performed 53 root evaluator evaluations with a maximum evaluation depth of 3. Performed 53 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 2 fixpoints after 2 different actions. Largest state had 0 variables. [2019-08-05 12:18:03,300 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-08-05 12:18:03,303 INFO L168 Benchmark]: Toolchain (without parser) took 582.46 ms. Allocated memory is still 134.2 MB. Free memory was 107.0 MB in the beginning and 87.0 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. [2019-08-05 12:18:03,304 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.18 ms. Allocated memory is still 134.2 MB. Free memory was 108.2 MB in the beginning and 108.0 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-08-05 12:18:03,306 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.65 ms. Allocated memory is still 134.2 MB. Free memory was 107.0 MB in the beginning and 104.7 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. [2019-08-05 12:18:03,307 INFO L168 Benchmark]: Boogie Preprocessor took 21.24 ms. Allocated memory is still 134.2 MB. Free memory was 104.7 MB in the beginning and 103.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. [2019-08-05 12:18:03,308 INFO L168 Benchmark]: RCFGBuilder took 355.19 ms. Allocated memory is still 134.2 MB. Free memory was 103.6 MB in the beginning and 93.5 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2019-08-05 12:18:03,310 INFO L168 Benchmark]: Abstract Interpretation took 156.48 ms. Allocated memory is still 134.2 MB. Free memory was 93.3 MB in the beginning and 87.0 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 7.1 GB. [2019-08-05 12:18:03,314 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 0.18 ms. Allocated memory is still 134.2 MB. Free memory was 108.2 MB in the beginning and 108.0 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 45.65 ms. Allocated memory is still 134.2 MB. Free memory was 107.0 MB in the beginning and 104.7 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 21.24 ms. Allocated memory is still 134.2 MB. Free memory was 104.7 MB in the beginning and 103.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 355.19 ms. Allocated memory is still 134.2 MB. Free memory was 103.6 MB in the beginning and 93.5 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 156.48 ms. Allocated memory is still 134.2 MB. Free memory was 93.3 MB in the beginning and 87.0 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 39]: 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: [L16-L18] requires lock == 0; [L39-L41] requires lock == 0; [L44] lock := 1; [L27] auld := new; [L32] COND FALSE !(new == auld) [L39-L41] requires lock == 0; - PositiveResult [Line: 48]: 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...