java -ea -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_array_oct.epf -i ../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/HierarchicalTraceAbstraction/GeometricalIntegerCakeWithArray.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fa1c628-m [2019-01-31 16:16:33,565 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-31 16:16:33,567 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-31 16:16:33,579 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-31 16:16:33,580 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-31 16:16:33,581 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-31 16:16:33,582 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-31 16:16:33,584 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-31 16:16:33,586 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-31 16:16:33,586 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-31 16:16:33,587 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2019-01-31 16:16:33,623 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/array-bench/reach_32bit_array_oct.epf [2019-01-31 16:16:33,644 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-31 16:16:33,644 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-31 16:16:33,646 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2019-01-31 16:16:33,646 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2019-01-31 16:16:33,646 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-01-31 16:16:33,646 INFO L133 SettingsManager]: * User list type=DISABLED [2019-01-31 16:16:33,647 INFO L133 SettingsManager]: * Inline calls to unimplemented procedures=true [2019-01-31 16:16:33,647 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-01-31 16:16:33,647 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-01-31 16:16:33,647 INFO L133 SettingsManager]: * Underlying domain=OctagonDomain [2019-01-31 16:16:33,647 INFO L133 SettingsManager]: * Abstract domain=ArrayDomain [2019-01-31 16:16:33,648 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-01-31 16:16:33,648 INFO L133 SettingsManager]: * Interval Domain=false [2019-01-31 16:16:33,649 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-31 16:16:33,649 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-31 16:16:33,649 INFO L133 SettingsManager]: * Use SBE=true [2019-01-31 16:16:33,650 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-31 16:16:33,651 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-31 16:16:33,651 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-31 16:16:33,651 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-31 16:16:33,652 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-31 16:16:33,652 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-31 16:16:33,652 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-31 16:16:33,652 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-31 16:16:33,652 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-31 16:16:33,653 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-31 16:16:33,653 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-31 16:16:33,653 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-31 16:16:33,653 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-31 16:16:33,654 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-31 16:16:33,654 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:8092 -smt2 -in -t:10000 [2019-01-31 16:16:33,654 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-31 16:16:33,654 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-31 16:16:33,654 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-31 16:16:33,655 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-01-31 16:16:33,655 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-31 16:16:33,655 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:8092 -smt2 -in [2019-01-31 16:16:33,655 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-01-31 16:16:33,655 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-01-31 16:16:33,686 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-31 16:16:33,700 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-31 16:16:33,706 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-31 16:16:33,710 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-01-31 16:16:33,710 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2019-01-31 16:16:33,711 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/HierarchicalTraceAbstraction/GeometricalIntegerCakeWithArray.bpl [2019-01-31 16:16:33,711 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/HierarchicalTraceAbstraction/GeometricalIntegerCakeWithArray.bpl' [2019-01-31 16:16:33,757 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-31 16:16:33,759 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-01-31 16:16:33,760 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-31 16:16:33,760 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-31 16:16:33,760 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-31 16:16:33,779 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 31.01 04:16:33" (1/1) ... [2019-01-31 16:16:33,789 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 31.01 04:16:33" (1/1) ... [2019-01-31 16:16:33,796 WARN L165 Inliner]: Program contained no entry procedure! [2019-01-31 16:16:33,797 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2019-01-31 16:16:33,797 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2019-01-31 16:16:33,799 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-31 16:16:33,800 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-31 16:16:33,800 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-31 16:16:33,800 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-31 16:16:33,811 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 31.01 04:16:33" (1/1) ... [2019-01-31 16:16:33,813 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 31.01 04:16:33" (1/1) ... [2019-01-31 16:16:33,814 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 31.01 04:16:33" (1/1) ... [2019-01-31 16:16:33,814 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 31.01 04:16:33" (1/1) ... [2019-01-31 16:16:33,820 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 31.01 04:16:33" (1/1) ... [2019-01-31 16:16:33,828 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 31.01 04:16:33" (1/1) ... [2019-01-31 16:16:33,829 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 31.01 04:16:33" (1/1) ... [2019-01-31 16:16:33,830 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-31 16:16:33,831 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-31 16:16:33,833 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-31 16:16:33,833 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-31 16:16:33,835 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 31.01 04:16:33" (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:8092 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:8092 -smt2 -in -t:10000 [2019-01-31 16:16:33,904 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2019-01-31 16:16:33,905 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-01-31 16:16:33,905 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-01-31 16:16:34,277 INFO L278 CfgBuilder]: Using library mode [2019-01-31 16:16:34,278 INFO L286 CfgBuilder]: Removed 1 assue(true) statements. [2019-01-31 16:16:34,279 INFO L202 PluginConnector]: Adding new model GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:16:34 BoogieIcfgContainer [2019-01-31 16:16:34,279 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-31 16:16:34,280 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-01-31 16:16:34,280 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-01-31 16:16:34,280 INFO L276 PluginConnector]: Abstract Interpretation initialized [2019-01-31 16:16:34,281 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:16:34" (1/1) ... [2019-01-31 16:16:34,324 INFO L101 FixpointEngine]: Starting fixpoint engine with domain ArrayDomain (maxUnwinding=3, maxParallelStates=2) [2019-01-31 16:16:37,389 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-01-31 16:16:37,414 INFO L272 AbstractInterpreter]: Visited 9 different actions 12 times. Merged at 3 different actions 3 times. Never widened. Found 2 fixpoints after 2 different actions. Largest state had 0 variables. [2019-01-31 16:16:37,416 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-01-31 16:16:37,417 INFO L168 Benchmark]: Toolchain (without parser) took 3658.89 ms. Allocated memory was 142.1 MB in the beginning and 205.0 MB in the end (delta: 62.9 MB). Free memory was 109.6 MB in the beginning and 181.8 MB in the end (delta: -72.2 MB). Peak memory consumption was 87.1 MB. Max. memory is 7.1 GB. [2019-01-31 16:16:37,419 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 ms. Allocated memory is still 142.1 MB. Free memory is still 110.4 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-01-31 16:16:37,420 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.54 ms. Allocated memory is still 142.1 MB. Free memory was 109.1 MB in the beginning and 107.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. [2019-01-31 16:16:37,421 INFO L168 Benchmark]: Boogie Preprocessor took 30.62 ms. Allocated memory is still 142.1 MB. Free memory was 107.5 MB in the beginning and 106.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-01-31 16:16:37,422 INFO L168 Benchmark]: RCFGBuilder took 448.77 ms. Allocated memory is still 142.1 MB. Free memory was 106.2 MB in the beginning and 94.5 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 7.1 GB. [2019-01-31 16:16:37,423 INFO L168 Benchmark]: Abstract Interpretation took 3135.90 ms. Allocated memory was 142.1 MB in the beginning and 205.0 MB in the end (delta: 62.9 MB). Free memory was 94.5 MB in the beginning and 181.8 MB in the end (delta: -87.3 MB). Peak memory consumption was 72.0 MB. Max. memory is 7.1 GB. [2019-01-31 16:16:37,429 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - GenericResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.20 ms. Allocated memory is still 142.1 MB. Free memory is still 110.4 MB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 39.54 ms. Allocated memory is still 142.1 MB. Free memory was 109.1 MB in the beginning and 107.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 30.62 ms. Allocated memory is still 142.1 MB. Free memory was 107.5 MB in the beginning and 106.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 448.77 ms. Allocated memory is still 142.1 MB. Free memory was 106.2 MB in the beginning and 94.5 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 3135.90 ms. Allocated memory was 142.1 MB in the beginning and 205.0 MB in the end (delta: 62.9 MB). Free memory was 94.5 MB in the beginning and 181.8 MB in the end (delta: -87.3 MB). Peak memory consumption was 72.0 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: [L13] assume init >= 0; [L15] m[cakeLeft] := init; [L16] m[eat] := init / 2; [L19] invariant cakeLeft == eat || (m[eat] + init / 2 <= m[cakeLeft] && m[eat] >= 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: [L13] assume init >= 0; [L15] m[cakeLeft] := init; [L16] m[eat] := init / 2; [L19] invariant cakeLeft == eat || (m[eat] + init / 2 <= m[cakeLeft] && m[eat] >= 0); [L24] COND TRUE cakeLeft != eat [L25] assert m[cakeLeft] >= init / 2; RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...