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/toy/InvariantChecking/showcase/MultiplicationOfNaturalNumbers.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 12:15:34,750 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 12:15:34,752 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 12:15:34,763 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 12:15:34,764 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 12:15:34,765 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 12:15:34,766 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 12:15:34,768 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 12:15:34,769 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 12:15:34,770 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 12:15:34,771 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 12:15:34,772 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2019-08-05 12:15:34,791 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 12:15:34,792 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 12:15:34,793 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 12:15:34,794 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 12:15:34,795 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 12:15:34,795 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 12:15:34,796 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 12:15:34,796 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... 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[2019-08-05 12:15:34,800 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 12:15:34,823 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-05 12:15:34,828 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-05 12:15:34,829 INFO L136 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2019-08-05 12:15:34,829 INFO L138 SettingsManager]: * Show backtranslation warnings=false [2019-08-05 12:15:34,829 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-08-05 12:15:34,830 INFO L138 SettingsManager]: * User list type=DISABLED [2019-08-05 12:15:34,830 INFO L138 SettingsManager]: * Inline calls to unimplemented procedures=true [2019-08-05 12:15:34,830 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-08-05 12:15:34,830 INFO L138 SettingsManager]: * Explicit value domain=true [2019-08-05 12:15:34,831 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-08-05 12:15:34,831 INFO L138 SettingsManager]: * Octagon Domain=false [2019-08-05 12:15:34,831 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-08-05 12:15:34,831 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-08-05 12:15:34,832 INFO L138 SettingsManager]: * Interval Domain=false [2019-08-05 12:15:34,832 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-05 12:15:34,832 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-05 12:15:34,833 INFO L138 SettingsManager]: * Use SBE=true [2019-08-05 12:15:34,833 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-05 12:15:34,833 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-05 12:15:34,834 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-05 12:15:34,834 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-05 12:15:34,835 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-05 12:15:34,835 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-05 12:15:34,835 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-05 12:15:34,835 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-05 12:15:34,836 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-05 12:15:34,836 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-05 12:15:34,836 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-05 12:15:34,836 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-05 12:15:34,836 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-05 12:15:34,837 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-05 12:15:34,837 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-05 12:15:34,837 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-05 12:15:34,837 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-05 12:15:34,838 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-05 12:15:34,838 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-08-05 12:15:34,838 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-05 12:15:34,840 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-05 12:15:34,840 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-05 12:15:34,840 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-08-05 12:15:34,880 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 12:15:34,891 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 12:15:34,894 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 12:15:34,895 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 12:15:34,895 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 12:15:34,896 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/InvariantChecking/showcase/MultiplicationOfNaturalNumbers.bpl [2019-08-05 12:15:34,896 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/InvariantChecking/showcase/MultiplicationOfNaturalNumbers.bpl' [2019-08-05 12:15:34,925 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 12:15:34,927 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 12:15:34,927 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 12:15:34,928 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 12:15:34,928 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 12:15:34,944 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "MultiplicationOfNaturalNumbers.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:15:34" (1/1) ... [2019-08-05 12:15:34,954 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "MultiplicationOfNaturalNumbers.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:15:34" (1/1) ... [2019-08-05 12:15:34,959 WARN L165 Inliner]: Program contained no entry procedure! [2019-08-05 12:15:34,959 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2019-08-05 12:15:34,960 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2019-08-05 12:15:34,962 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 12:15:34,963 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 12:15:34,963 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 12:15:34,963 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 12:15:34,973 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "MultiplicationOfNaturalNumbers.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:15:34" (1/1) ... [2019-08-05 12:15:34,974 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "MultiplicationOfNaturalNumbers.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:15:34" (1/1) ... [2019-08-05 12:15:34,974 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "MultiplicationOfNaturalNumbers.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:15:34" (1/1) ... [2019-08-05 12:15:34,975 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "MultiplicationOfNaturalNumbers.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:15:34" (1/1) ... [2019-08-05 12:15:34,977 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "MultiplicationOfNaturalNumbers.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:15:34" (1/1) ... [2019-08-05 12:15:34,982 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "MultiplicationOfNaturalNumbers.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:15:34" (1/1) ... [2019-08-05 12:15:34,982 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "MultiplicationOfNaturalNumbers.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:15:34" (1/1) ... [2019-08-05 12:15:34,984 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 12:15:34,984 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 12:15:34,985 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 12:15:34,985 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 12:15:34,986 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "MultiplicationOfNaturalNumbers.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:15:34" (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 12:15:35,055 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2019-08-05 12:15:35,056 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-05 12:15:35,056 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-05 12:15:35,322 INFO L275 CfgBuilder]: Using library mode [2019-08-05 12:15:35,322 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-05 12:15:35,324 INFO L202 PluginConnector]: Adding new model MultiplicationOfNaturalNumbers.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 12:15:35 BoogieIcfgContainer [2019-08-05 12:15:35,324 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 12:15:35,325 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-08-05 12:15:35,325 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-08-05 12:15:35,325 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-08-05 12:15:35,326 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "MultiplicationOfNaturalNumbers.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 12:15:35" (1/1) ... [2019-08-05 12:15:35,356 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2019-08-05 12:15:35,483 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-08-05 12:15:35,506 INFO L272 AbstractInterpreter]: Visited 8 different actions 15 times. Merged at 7 different actions 7 times. Never widened. Performed 56 root evaluator evaluations with a maximum evaluation depth of 8. Performed 56 inverse root evaluator evaluations with a maximum inverse evaluation depth of 8. Found 1 fixpoints after 1 different actions. Largest state had 0 variables. [2019-08-05 12:15:35,506 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-08-05 12:15:35,509 INFO L168 Benchmark]: Toolchain (without parser) took 581.34 ms. Allocated memory is still 133.2 MB. Free memory was 107.3 MB in the beginning and 87.8 MB in the end (delta: 19.5 MB). Peak memory consumption was 19.5 MB. Max. memory is 7.1 GB. [2019-08-05 12:15:35,510 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.19 ms. Allocated memory is still 133.2 MB. Free memory is still 108.1 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-08-05 12:15:35,512 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.70 ms. Allocated memory is still 133.2 MB. Free memory was 107.3 MB in the beginning and 105.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-08-05 12:15:35,513 INFO L168 Benchmark]: Boogie Preprocessor took 21.39 ms. Allocated memory is still 133.2 MB. Free memory was 105.2 MB in the beginning and 104.3 MB in the end (delta: 909.9 kB). Peak memory consumption was 909.9 kB. Max. memory is 7.1 GB. [2019-08-05 12:15:35,514 INFO L168 Benchmark]: RCFGBuilder took 339.62 ms. Allocated memory is still 133.2 MB. Free memory was 103.8 MB in the beginning and 95.1 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 7.1 GB. [2019-08-05 12:15:35,516 INFO L168 Benchmark]: Abstract Interpretation took 181.58 ms. Allocated memory is still 133.2 MB. Free memory was 95.1 MB in the beginning and 87.8 MB in the end (delta: 7.4 MB). Peak memory consumption was 7.4 MB. Max. memory is 7.1 GB. [2019-08-05 12:15:35,520 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 0.19 ms. Allocated memory is still 133.2 MB. Free memory is still 108.1 MB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 34.70 ms. Allocated memory is still 133.2 MB. Free memory was 107.3 MB in the beginning and 105.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 21.39 ms. Allocated memory is still 133.2 MB. Free memory was 105.2 MB in the beginning and 104.3 MB in the end (delta: 909.9 kB). Peak memory consumption was 909.9 kB. Max. memory is 7.1 GB. * RCFGBuilder took 339.62 ms. Allocated memory is still 133.2 MB. Free memory was 103.8 MB in the beginning and 95.1 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 181.58 ms. Allocated memory is still 133.2 MB. Free memory was 95.1 MB in the beginning and 87.8 MB in the end (delta: 7.4 MB). Peak memory consumption was 7.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 19]: Unable to prove that loop invariant is valid and assertion always holds Unable to prove that loop invariant is valid and assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L14] assume n >= 0; [L15] assume m >= 0; [L16] n_tmp := n; [L17] result := 0; [L19-L20] invariant result == (n - n_tmp) * m && n >= 0 && m >= 0 && n_tmp <= n && n_tmp >= 0; - UnprovableResult [Line: 25]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L14] assume n >= 0; [L15] assume m >= 0; [L16] n_tmp := n; [L17] result := 0; [L19-L20] invariant result == (n - n_tmp) * m && n >= 0 && m >= 0 && n_tmp <= n && n_tmp >= 0; [L18] COND FALSE !(n_tmp >= 1) [L25] assert result == n * m; RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...