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/fibonacci-vs-ackermann.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 12:17:53,815 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 12:17:53,817 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 12:17:53,829 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-08-05 12:17:53,838 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 12:17:53,839 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 12:17:53,840 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 12:17:53,841 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 12:17:53,842 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 12:17:53,843 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 12:17:53,845 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 12:17:53,848 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 12:17:53,849 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 12:17:53,851 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 12:17:53,852 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 12:17:53,853 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 12:17:53,856 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-05 12:17:53,868 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 12:17:53,883 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-05 12:17:53,884 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-05 12:17:53,885 INFO L136 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2019-08-05 12:17:53,885 INFO L138 SettingsManager]: * Show backtranslation warnings=false [2019-08-05 12:17:53,887 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-08-05 12:17:53,888 INFO L138 SettingsManager]: * User list type=DISABLED [2019-08-05 12:17:53,888 INFO L138 SettingsManager]: * Inline calls to unimplemented procedures=true [2019-08-05 12:17:53,888 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-08-05 12:17:53,888 INFO L138 SettingsManager]: * Explicit value domain=true [2019-08-05 12:17:53,889 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-08-05 12:17:53,889 INFO L138 SettingsManager]: * Octagon Domain=false [2019-08-05 12:17:53,889 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-08-05 12:17:53,889 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-08-05 12:17:53,889 INFO L138 SettingsManager]: * Interval Domain=false [2019-08-05 12:17:53,891 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-05 12:17:53,891 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-05 12:17:53,891 INFO L138 SettingsManager]: * Use SBE=true [2019-08-05 12:17:53,891 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-05 12:17:53,892 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-05 12:17:53,892 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-05 12:17:53,892 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-05 12:17:53,892 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-05 12:17:53,892 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-05 12:17:53,893 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-05 12:17:53,893 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-05 12:17:53,896 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-05 12:17:53,896 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-05 12:17:53,897 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-05 12:17:53,897 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-05 12:17:53,897 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-05 12:17:53,897 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-05 12:17:53,897 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-05 12:17:53,898 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-05 12:17:53,898 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-05 12:17:53,898 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-05 12:17:53,898 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-08-05 12:17:53,899 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-05 12:17:53,899 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-05 12:17:53,899 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-05 12:17:53,901 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-08-05 12:17:53,956 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 12:17:53,973 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 12:17:53,978 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 12:17:53,980 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 12:17:53,980 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 12:17:53,981 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/recursive/fibonacci-vs-ackermann.bpl [2019-08-05 12:17:53,981 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/recursive/fibonacci-vs-ackermann.bpl' [2019-08-05 12:17:54,029 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 12:17:54,030 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 12:17:54,031 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 12:17:54,032 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 12:17:54,032 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 12:17:54,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "fibonacci-vs-ackermann.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:17:54" (1/1) ... [2019-08-05 12:17:54,062 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "fibonacci-vs-ackermann.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:17:54" (1/1) ... [2019-08-05 12:17:54,071 WARN L165 Inliner]: Program contained no entry procedure! [2019-08-05 12:17:54,071 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2019-08-05 12:17:54,072 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2019-08-05 12:17:54,074 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 12:17:54,075 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 12:17:54,075 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 12:17:54,075 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 12:17:54,087 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "fibonacci-vs-ackermann.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:17:54" (1/1) ... [2019-08-05 12:17:54,088 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "fibonacci-vs-ackermann.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:17:54" (1/1) ... [2019-08-05 12:17:54,089 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "fibonacci-vs-ackermann.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:17:54" (1/1) ... [2019-08-05 12:17:54,089 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "fibonacci-vs-ackermann.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:17:54" (1/1) ... [2019-08-05 12:17:54,094 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "fibonacci-vs-ackermann.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:17:54" (1/1) ... [2019-08-05 12:17:54,098 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "fibonacci-vs-ackermann.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:17:54" (1/1) ... [2019-08-05 12:17:54,099 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "fibonacci-vs-ackermann.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:17:54" (1/1) ... [2019-08-05 12:17:54,102 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 12:17:54,103 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 12:17:54,103 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 12:17:54,103 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 12:17:54,104 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "fibonacci-vs-ackermann.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:17:54" (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 12:17:54,180 INFO L130 BoogieDeclarations]: Found specification of procedure fibonacci [2019-08-05 12:17:54,180 INFO L138 BoogieDeclarations]: Found implementation of procedure fibonacci [2019-08-05 12:17:54,180 INFO L130 BoogieDeclarations]: Found specification of procedure ackermann [2019-08-05 12:17:54,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ackermann [2019-08-05 12:17:54,181 INFO L130 BoogieDeclarations]: Found specification of procedure Main [2019-08-05 12:17:54,181 INFO L138 BoogieDeclarations]: Found implementation of procedure Main [2019-08-05 12:17:54,301 WARN L731 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-08-05 12:18:30,483 WARN L731 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-08-05 12:18:42,525 INFO L275 CfgBuilder]: Using library mode [2019-08-05 12:18:42,525 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-05 12:18:42,526 INFO L202 PluginConnector]: Adding new model fibonacci-vs-ackermann.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 12:18:42 BoogieIcfgContainer [2019-08-05 12:18:42,527 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 12:18:42,528 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-08-05 12:18:42,528 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-08-05 12:18:42,528 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-08-05 12:18:42,530 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "fibonacci-vs-ackermann.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 12:18:42" (1/1) ... [2019-08-05 12:18:42,570 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2019-08-05 12:18:45,904 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-08-05 12:18:45,932 INFO L272 AbstractInterpreter]: Visited 31 different actions 14583 times. Merged at 15 different actions 3987 times. Widened at 2 different actions 85 times. Performed 37030 root evaluator evaluations with a maximum evaluation depth of 4. Performed 37030 inverse root evaluator evaluations with a maximum inverse evaluation depth of 4. Found 1817 fixpoints after 11 different actions. Largest state had 4 variables. [2019-08-05 12:18:45,932 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-08-05 12:18:45,936 INFO L168 Benchmark]: Toolchain (without parser) took 51903.79 ms. Allocated memory was 142.1 MB in the beginning and 233.8 MB in the end (delta: 91.8 MB). Free memory was 108.1 MB in the beginning and 72.1 MB in the end (delta: 36.0 MB). Peak memory consumption was 127.8 MB. Max. memory is 7.1 GB. [2019-08-05 12:18:45,937 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 ms. Allocated memory is still 142.1 MB. Free memory was 109.3 MB in the beginning and 109.1 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-08-05 12:18:45,938 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.90 ms. Allocated memory is still 142.1 MB. Free memory was 107.9 MB in the beginning and 106.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-08-05 12:18:45,941 INFO L168 Benchmark]: Boogie Preprocessor took 27.43 ms. Allocated memory is still 142.1 MB. Free memory was 106.0 MB in the beginning and 104.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. [2019-08-05 12:18:45,942 INFO L168 Benchmark]: RCFGBuilder took 48424.30 ms. Allocated memory is still 142.1 MB. Free memory was 104.9 MB in the beginning and 93.0 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 7.1 GB. [2019-08-05 12:18:45,944 INFO L168 Benchmark]: Abstract Interpretation took 3404.64 ms. Allocated memory was 142.1 MB in the beginning and 233.8 MB in the end (delta: 91.8 MB). Free memory was 92.7 MB in the beginning and 72.1 MB in the end (delta: 20.7 MB). Peak memory consumption was 112.4 MB. Max. memory is 7.1 GB. [2019-08-05 12:18:45,950 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 0.20 ms. Allocated memory is still 142.1 MB. Free memory was 109.3 MB in the beginning and 109.1 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 42.90 ms. Allocated memory is still 142.1 MB. Free memory was 107.9 MB in the beginning and 106.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.43 ms. Allocated memory is still 142.1 MB. Free memory was 106.0 MB in the beginning and 104.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 48424.30 ms. Allocated memory is still 142.1 MB. Free memory was 104.9 MB in the beginning and 93.0 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 3404.64 ms. Allocated memory was 142.1 MB in the beginning and 233.8 MB in the end (delta: 91.8 MB). Free memory was 92.7 MB in the beginning and 72.1 MB in the end (delta: 20.7 MB). Peak memory consumption was 112.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 30]: Unable to prove that procedure postcondition always holds Unable to prove that procedure postcondition always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L31] free requires n >= 0; [L38] COND TRUE n < 1 [L39] res := 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: [L18] free requires a >= 0; [L23] CALL call b := ackermann(a, a); [L61] COND TRUE m == 0 [L62] res := n + 1; [L23] RET call b := ackermann(a, a); [L24] CALL call c := fibonacci(a); [L31] free requires n >= 0; [L38] COND TRUE n < 1 [L39] res := 0; [L24] RET call c := fibonacci(a); [L25] assert b >= c; RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...