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_array_compound_oct_cong.epf -i ../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/HierarchicalTraceAbstraction/GeometricalIntegerCakeWithArray.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f57a05f [2019-01-07 22:41:58,332 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-07 22:41:58,334 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-07 22:41:58,348 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-07 22:41:58,348 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-07 22:41:58,350 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-07 22:41:58,351 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-07 22:41:58,353 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-07 22:41:58,355 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-07 22:41:58,356 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-07 22:41:58,357 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2019-01-07 22:41:58,382 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/array-bench/reach_32bit_array_compound_oct_cong.epf [2019-01-07 22:41:58,409 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-07 22:41:58,410 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-07 22:41:58,411 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2019-01-07 22:41:58,411 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2019-01-07 22:41:58,412 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-01-07 22:41:58,412 INFO L133 SettingsManager]: * User list type=DISABLED [2019-01-07 22:41:58,412 INFO L133 SettingsManager]: * Inline calls to unimplemented procedures=true [2019-01-07 22:41:58,412 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-01-07 22:41:58,412 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-01-07 22:41:58,413 INFO L133 SettingsManager]: * Abstract domain=ArrayDomain [2019-01-07 22:41:58,413 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-01-07 22:41:58,413 INFO L133 SettingsManager]: * Interval Domain=false [2019-01-07 22:41:58,414 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-07 22:41:58,414 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-07 22:41:58,414 INFO L133 SettingsManager]: * Use SBE=true [2019-01-07 22:41:58,414 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-07 22:41:58,415 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-07 22:41:58,415 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-07 22:41:58,415 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-07 22:41:58,415 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-07 22:41:58,415 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-07 22:41:58,416 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-07 22:41:58,416 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-07 22:41:58,416 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-07 22:41:58,416 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-07 22:41:58,416 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-07 22:41:58,417 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-07 22:41:58,417 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-07 22:41:58,417 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-07 22:41:58,417 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-07 22:41:58,417 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-07 22:41:58,418 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-07 22:41:58,418 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-07 22:41:58,418 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-01-07 22:41:58,418 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-07 22:41:58,418 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-07 22:41:58,419 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-01-07 22:41:58,419 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-01-07 22:41:58,467 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-07 22:41:58,479 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-07 22:41:58,483 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-07 22:41:58,485 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-01-07 22:41:58,485 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2019-01-07 22:41:58,486 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/HierarchicalTraceAbstraction/GeometricalIntegerCakeWithArray.bpl [2019-01-07 22:41:58,487 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/HierarchicalTraceAbstraction/GeometricalIntegerCakeWithArray.bpl' [2019-01-07 22:41:58,522 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-07 22:41:58,524 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-01-07 22:41:58,525 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-07 22:41:58,525 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-07 22:41:58,525 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-07 22:41:58,542 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.01 10:41:58" (1/1) ... [2019-01-07 22:41:58,552 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.01 10:41:58" (1/1) ... [2019-01-07 22:41:58,558 WARN L165 Inliner]: Program contained no entry procedure! [2019-01-07 22:41:58,559 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2019-01-07 22:41:58,559 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2019-01-07 22:41:58,561 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-07 22:41:58,562 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-07 22:41:58,562 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-07 22:41:58,563 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-07 22:41:58,575 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.01 10:41:58" (1/1) ... [2019-01-07 22:41:58,575 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.01 10:41:58" (1/1) ... [2019-01-07 22:41:58,576 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.01 10:41:58" (1/1) ... [2019-01-07 22:41:58,576 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.01 10:41:58" (1/1) ... [2019-01-07 22:41:58,580 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.01 10:41:58" (1/1) ... [2019-01-07 22:41:58,584 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.01 10:41:58" (1/1) ... [2019-01-07 22:41:58,585 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.01 10:41:58" (1/1) ... [2019-01-07 22:41:58,586 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-07 22:41:58,587 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-07 22:41:58,587 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-07 22:41:58,587 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-07 22:41:58,588 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.01 10:41:58" (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 [2019-01-07 22:41:58,653 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2019-01-07 22:41:58,654 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-01-07 22:41:58,654 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-01-07 22:41:58,839 INFO L278 CfgBuilder]: Using library mode [2019-01-07 22:41:58,839 INFO L286 CfgBuilder]: Removed 1 assue(true) statements. [2019-01-07 22:41:58,841 INFO L202 PluginConnector]: Adding new model GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.01 10:41:58 BoogieIcfgContainer [2019-01-07 22:41:58,841 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-07 22:41:58,842 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-01-07 22:41:58,842 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-01-07 22:41:58,842 INFO L276 PluginConnector]: Abstract Interpretation initialized [2019-01-07 22:41:58,843 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.01 10:41:58" (1/1) ... [2019-01-07 22:41:58,905 INFO L101 FixpointEngine]: Starting fixpoint engine with domain ArrayDomain (maxUnwinding=3, maxParallelStates=2) [2019-01-07 22:42:00,166 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-01-07 22:42:00,189 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. [2019-01-07 22:42:00,191 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-01-07 22:42:00,192 INFO L168 Benchmark]: Toolchain (without parser) took 1669.77 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 179.7 MB). Peak memory consumption was 179.7 MB. Max. memory is 7.1 GB. [2019-01-07 22:42:00,195 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2019-01-07 22:42:00,196 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.15 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2019-01-07 22:42:00,197 INFO L168 Benchmark]: Boogie Preprocessor took 24.26 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2019-01-07 22:42:00,198 INFO L168 Benchmark]: RCFGBuilder took 254.16 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2019-01-07 22:42:00,199 INFO L168 Benchmark]: Abstract Interpretation took 1349.74 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 158.5 MB). Peak memory consumption was 158.5 MB. Max. memory is 7.1 GB. [2019-01-07 22:42:00,204 INFO L336 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 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 37.15 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 24.26 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 254.16 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 1349.74 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 158.5 MB). Peak memory consumption was 158.5 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...