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/abstractInterpretation/regression/open/int/recursive-CallABAB.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 12:18:48,306 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 12:18:48,309 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 12:18:48,322 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-08-05 12:18:48,362 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 12:18:48,377 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-05 12:18:48,378 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-05 12:18:48,379 INFO L136 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2019-08-05 12:18:48,379 INFO L138 SettingsManager]: * Show backtranslation warnings=false [2019-08-05 12:18:48,379 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-08-05 12:18:48,380 INFO L138 SettingsManager]: * User list type=DISABLED [2019-08-05 12:18:48,380 INFO L138 SettingsManager]: * Inline calls to unimplemented procedures=true [2019-08-05 12:18:48,380 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-08-05 12:18:48,380 INFO L138 SettingsManager]: * Explicit value domain=true [2019-08-05 12:18:48,380 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-08-05 12:18:48,381 INFO L138 SettingsManager]: * Octagon Domain=false [2019-08-05 12:18:48,381 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-08-05 12:18:48,381 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-08-05 12:18:48,381 INFO L138 SettingsManager]: * Interval Domain=false [2019-08-05 12:18:48,382 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-05 12:18:48,384 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-05 12:18:48,384 INFO L138 SettingsManager]: * Use SBE=true [2019-08-05 12:18:48,384 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-05 12:18:48,385 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-05 12:18:48,385 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-05 12:18:48,385 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-05 12:18:48,385 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-05 12:18:48,385 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-05 12:18:48,386 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-05 12:18:48,386 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-05 12:18:48,386 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-05 12:18:48,387 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-05 12:18:48,387 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-05 12:18:48,387 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-05 12:18:48,387 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-05 12:18:48,387 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-05 12:18:48,388 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-05 12:18:48,388 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-05 12:18:48,388 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-05 12:18:48,388 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-05 12:18:48,388 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-08-05 12:18:48,389 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-05 12:18:48,389 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-05 12:18:48,389 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-05 12:18:48,390 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-08-05 12:18:48,447 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 12:18:48,467 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 12:18:48,472 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 12:18:48,476 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 12:18:48,477 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 12:18:48,478 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/abstractInterpretation/regression/open/int/recursive-CallABAB.bpl [2019-08-05 12:18:48,478 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/abstractInterpretation/regression/open/int/recursive-CallABAB.bpl' [2019-08-05 12:18:48,516 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 12:18:48,518 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 12:18:48,518 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 12:18:48,519 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 12:18:48,520 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 12:18:48,540 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "recursive-CallABAB.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:18:48" (1/1) ... [2019-08-05 12:18:48,551 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "recursive-CallABAB.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:18:48" (1/1) ... [2019-08-05 12:18:48,563 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 12:18:48,564 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 12:18:48,565 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 12:18:48,565 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 12:18:48,577 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "recursive-CallABAB.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:18:48" (1/1) ... [2019-08-05 12:18:48,577 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "recursive-CallABAB.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:18:48" (1/1) ... [2019-08-05 12:18:48,579 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "recursive-CallABAB.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:18:48" (1/1) ... [2019-08-05 12:18:48,579 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "recursive-CallABAB.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:18:48" (1/1) ... [2019-08-05 12:18:48,586 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "recursive-CallABAB.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:18:48" (1/1) ... [2019-08-05 12:18:48,589 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "recursive-CallABAB.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:18:48" (1/1) ... [2019-08-05 12:18:48,590 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "recursive-CallABAB.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:18:48" (1/1) ... [2019-08-05 12:18:48,592 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 12:18:48,593 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 12:18:48,593 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 12:18:48,593 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 12:18:48,595 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "recursive-CallABAB.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:18:48" (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 12:18:48,670 INFO L124 BoogieDeclarations]: Specification and implementation of procedure funA given in one single declaration [2019-08-05 12:18:48,670 INFO L130 BoogieDeclarations]: Found specification of procedure funA [2019-08-05 12:18:48,670 INFO L138 BoogieDeclarations]: Found implementation of procedure funA [2019-08-05 12:18:48,671 INFO L124 BoogieDeclarations]: Specification and implementation of procedure funB given in one single declaration [2019-08-05 12:18:48,671 INFO L130 BoogieDeclarations]: Found specification of procedure funB [2019-08-05 12:18:48,671 INFO L138 BoogieDeclarations]: Found implementation of procedure funB [2019-08-05 12:18:48,671 INFO L124 BoogieDeclarations]: Specification and implementation of procedure dispatch given in one single declaration [2019-08-05 12:18:48,672 INFO L130 BoogieDeclarations]: Found specification of procedure dispatch [2019-08-05 12:18:48,672 INFO L138 BoogieDeclarations]: Found implementation of procedure dispatch [2019-08-05 12:18:48,672 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2019-08-05 12:18:48,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-05 12:18:48,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-05 12:18:48,919 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-05 12:18:48,920 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-05 12:18:48,921 INFO L202 PluginConnector]: Adding new model recursive-CallABAB.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 12:18:48 BoogieIcfgContainer [2019-08-05 12:18:48,922 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 12:18:48,922 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-08-05 12:18:48,923 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-08-05 12:18:48,923 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-08-05 12:18:48,924 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "recursive-CallABAB.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 12:18:48" (1/1) ... [2019-08-05 12:18:48,954 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2019-08-05 12:18:49,172 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-08-05 12:18:49,200 INFO L272 AbstractInterpreter]: Visited 20 different actions 77 times. Merged at 2 different actions 2 times. Widened at 4 different actions 6 times. Performed 156 root evaluator evaluations with a maximum evaluation depth of 3. Performed 156 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 4 fixpoints after 3 different actions. Largest state had 3 variables. [2019-08-05 12:18:49,200 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-08-05 12:18:49,204 INFO L168 Benchmark]: Toolchain (without parser) took 684.71 ms. Allocated memory is still 140.0 MB. Free memory was 104.8 MB in the beginning and 81.6 MB in the end (delta: 23.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. [2019-08-05 12:18:49,205 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.23 ms. Allocated memory is still 140.0 MB. Free memory is still 105.6 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-08-05 12:18:49,207 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.39 ms. Allocated memory is still 140.0 MB. Free memory was 104.8 MB in the beginning and 103.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. [2019-08-05 12:18:49,209 INFO L168 Benchmark]: Boogie Preprocessor took 28.19 ms. Allocated memory is still 140.0 MB. Free memory was 103.1 MB in the beginning and 101.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-08-05 12:18:49,211 INFO L168 Benchmark]: RCFGBuilder took 328.74 ms. Allocated memory is still 140.0 MB. Free memory was 101.8 MB in the beginning and 91.4 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2019-08-05 12:18:49,212 INFO L168 Benchmark]: Abstract Interpretation took 277.96 ms. Allocated memory is still 140.0 MB. Free memory was 91.4 MB in the beginning and 81.6 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2019-08-05 12:18:49,220 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 0.23 ms. Allocated memory is still 140.0 MB. Free memory is still 105.6 MB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 45.39 ms. Allocated memory is still 140.0 MB. Free memory was 104.8 MB in the beginning and 103.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.19 ms. Allocated memory is still 140.0 MB. Free memory was 103.1 MB in the beginning and 101.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 328.74 ms. Allocated memory is still 140.0 MB. Free memory was 101.8 MB in the beginning and 91.4 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 277.96 ms. Allocated memory is still 140.0 MB. Free memory was 91.4 MB in the beginning and 81.6 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 14]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L12] CALL call x := dispatch(2000, 2000); [L20] COND FALSE !(a < 0) [L26] COND FALSE !(a > b) [L32] CALL call res := funB(a, b); [L44] CALL call res := dispatch(a - 1, b - 2); [L20] COND FALSE !(a < 0) [L26] COND TRUE a > b [L28] CALL call res := funA(a, b); [L38] CALL call res := dispatch(a - 2, b - 1); [L20] COND FALSE !(a < 0) [L26] COND FALSE !(a > b) [L32] CALL call res := funB(a, b); [L44] CALL call res := dispatch(a - 1, b - 2); [L20] COND FALSE !(a < 0) [L26] COND TRUE a > b [L28] CALL call res := funA(a, b); [L38] CALL call res := dispatch(a - 2, b - 1); [L20] COND FALSE !(a < 0) [L26] COND FALSE !(a > b) [L32] CALL call res := funB(a, b); [L44] CALL call res := dispatch(a - 1, b - 2); [L20] COND TRUE a < 0 [L22] res := b; [L44] RET call res := dispatch(a - 1, b - 2); [L32] RET call res := funB(a, b); [L38] RET call res := dispatch(a - 2, b - 1); [L28] RET call res := funA(a, b); [L44] RET call res := dispatch(a - 1, b - 2); [L32] RET call res := funB(a, b); [L38] RET call res := dispatch(a - 2, b - 1); [L28] RET call res := funA(a, b); [L44] RET call res := dispatch(a - 1, b - 2); [L32] RET call res := funB(a, b); [L12] RET call x := dispatch(2000, 2000); [L14] assert x <= 0; RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...