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/returnZero.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 12:17:54,786 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 12:17:54,788 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 12:17:54,801 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-08-05 12:17:54,848 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 12:17:54,871 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-05 12:17:54,872 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-05 12:17:54,874 INFO L136 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2019-08-05 12:17:54,874 INFO L138 SettingsManager]: * Show backtranslation warnings=false [2019-08-05 12:17:54,874 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-08-05 12:17:54,875 INFO L138 SettingsManager]: * User list type=DISABLED [2019-08-05 12:17:54,875 INFO L138 SettingsManager]: * Inline calls to unimplemented procedures=true [2019-08-05 12:17:54,876 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-08-05 12:17:54,876 INFO L138 SettingsManager]: * Explicit value domain=true [2019-08-05 12:17:54,876 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-08-05 12:17:54,876 INFO L138 SettingsManager]: * Octagon Domain=false [2019-08-05 12:17:54,876 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-08-05 12:17:54,877 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-08-05 12:17:54,877 INFO L138 SettingsManager]: * Interval Domain=false [2019-08-05 12:17:54,879 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-05 12:17:54,880 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-05 12:17:54,880 INFO L138 SettingsManager]: * Use SBE=true [2019-08-05 12:17:54,881 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-05 12:17:54,881 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-05 12:17:54,881 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-05 12:17:54,882 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-05 12:17:54,882 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-05 12:17:54,882 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-05 12:17:54,882 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-05 12:17:54,883 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-05 12:17:54,883 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-05 12:17:54,883 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-05 12:17:54,883 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-05 12:17:54,884 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-05 12:17:54,884 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-05 12:17:54,884 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-05 12:17:54,884 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-05 12:17:54,884 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-05 12:17:54,885 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-05 12:17:54,885 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-05 12:17:54,885 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-08-05 12:17:54,885 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-05 12:17:54,885 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-05 12:17:54,886 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-05 12:17:54,886 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-08-05 12:17:54,944 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 12:17:54,960 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 12:17:54,964 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 12:17:54,966 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 12:17:54,966 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 12:17:54,967 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/recursive/regression/bpl/returnZero.bpl [2019-08-05 12:17:54,967 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/recursive/regression/bpl/returnZero.bpl' [2019-08-05 12:17:55,001 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 12:17:55,003 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 12:17:55,003 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 12:17:55,004 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 12:17:55,004 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 12:17:55,021 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "returnZero.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:17:54" (1/1) ... [2019-08-05 12:17:55,032 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "returnZero.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:17:54" (1/1) ... [2019-08-05 12:17:55,038 WARN L165 Inliner]: Program contained no entry procedure! [2019-08-05 12:17:55,038 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2019-08-05 12:17:55,038 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2019-08-05 12:17:55,040 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 12:17:55,041 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 12:17:55,041 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 12:17:55,041 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 12:17:55,054 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "returnZero.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:17:54" (1/1) ... [2019-08-05 12:17:55,054 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "returnZero.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:17:54" (1/1) ... [2019-08-05 12:17:55,055 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "returnZero.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:17:54" (1/1) ... [2019-08-05 12:17:55,055 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "returnZero.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:17:54" (1/1) ... [2019-08-05 12:17:55,058 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "returnZero.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:17:54" (1/1) ... [2019-08-05 12:17:55,059 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "returnZero.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:17:54" (1/1) ... [2019-08-05 12:17:55,061 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "returnZero.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:17:54" (1/1) ... [2019-08-05 12:17:55,062 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 12:17:55,063 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 12:17:55,063 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 12:17:55,063 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 12:17:55,064 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "returnZero.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 12:17:55,136 INFO L130 BoogieDeclarations]: Found specification of procedure returnZero [2019-08-05 12:17:55,136 INFO L138 BoogieDeclarations]: Found implementation of procedure returnZero [2019-08-05 12:17:55,280 INFO L275 CfgBuilder]: Using library mode [2019-08-05 12:17:55,280 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-05 12:17:55,281 INFO L202 PluginConnector]: Adding new model returnZero.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 12:17:55 BoogieIcfgContainer [2019-08-05 12:17:55,282 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 12:17:55,282 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-08-05 12:17:55,283 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-08-05 12:17:55,283 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-08-05 12:17:55,284 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "returnZero.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 12:17:55" (1/1) ... [2019-08-05 12:17:55,315 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2019-08-05 12:17:58,265 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-08-05 12:17:58,274 INFO L272 AbstractInterpreter]: Visited 13 different actions 35677 times. Never merged. Never widened. Performed 45871 root evaluator evaluations with a maximum evaluation depth of 1. Performed 45871 inverse root evaluator evaluations with a maximum inverse evaluation depth of 1. Found 5097 fixpoints after 5 different actions. Largest state had 3 variables. [2019-08-05 12:17:58,274 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-08-05 12:17:58,280 INFO L168 Benchmark]: Toolchain (without parser) took 3273.76 ms. Allocated memory was 141.0 MB in the beginning and 254.8 MB in the end (delta: 113.8 MB). Free memory was 107.3 MB in the beginning and 143.1 MB in the end (delta: -35.9 MB). Peak memory consumption was 183.7 MB. Max. memory is 7.1 GB. [2019-08-05 12:17:58,281 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.18 ms. Allocated memory is still 141.0 MB. Free memory was 108.3 MB in the beginning and 108.1 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-08-05 12:17:58,284 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.40 ms. Allocated memory is still 141.0 MB. Free memory was 107.1 MB in the beginning and 105.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. [2019-08-05 12:17:58,285 INFO L168 Benchmark]: Boogie Preprocessor took 21.31 ms. Allocated memory is still 141.0 MB. Free memory was 105.3 MB in the beginning and 104.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. [2019-08-05 12:17:58,287 INFO L168 Benchmark]: RCFGBuilder took 218.95 ms. Allocated memory is still 141.0 MB. Free memory was 104.0 MB in the beginning and 95.6 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 7.1 GB. [2019-08-05 12:17:58,289 INFO L168 Benchmark]: Abstract Interpretation took 2991.92 ms. Allocated memory was 141.0 MB in the beginning and 254.8 MB in the end (delta: 113.8 MB). Free memory was 95.3 MB in the beginning and 143.1 MB in the end (delta: -47.8 MB). Peak memory consumption was 171.8 MB. Max. memory is 7.1 GB. [2019-08-05 12:17:58,296 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 141.0 MB. Free memory was 108.3 MB in the beginning and 108.1 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 37.40 ms. Allocated memory is still 141.0 MB. Free memory was 107.1 MB in the beginning and 105.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 21.31 ms. Allocated memory is still 141.0 MB. Free memory was 105.3 MB in the beginning and 104.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 218.95 ms. Allocated memory is still 141.0 MB. Free memory was 104.0 MB in the beginning and 95.6 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 2991.92 ms. Allocated memory was 141.0 MB in the beginning and 254.8 MB in the end (delta: 113.8 MB). Free memory was 95.3 MB in the beginning and 143.1 MB in the end (delta: -47.8 MB). Peak memory consumption was 171.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - PositiveResult [Line: 28]: assertion always holds For all program executions holds that assertion always holds at this location RESULT: Ultimate proved your program to be correct! Received shutdown request...