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_compound_exp_cong.epf -i ../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/HierarchicalTraceAbstraction/GeometricalIntegerCakeWithArray.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b7bd044-m [2019-01-18 15:07:04,534 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-18 15:07:04,536 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-18 15:07:04,548 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-18 15:07:04,548 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-18 15:07:04,550 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-18 15:07:04,551 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-18 15:07:04,553 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-18 15:07:04,555 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-18 15:07:04,556 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-18 15:07:04,557 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-18 15:07:04,557 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-18 15:07:04,558 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-18 15:07:04,560 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-18 15:07:04,561 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-18 15:07:04,562 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-18 15:07:04,563 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-18 15:07:04,565 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-18 15:07:04,567 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-18 15:07:04,569 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-18 15:07:04,570 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-18 15:07:04,572 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-18 15:07:04,574 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-01-18 15:07:04,584 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/array-bench/reach_32bit_array_compound_exp_cong.epf [2019-01-18 15:07:04,597 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-18 15:07:04,598 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-18 15:07:04,599 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2019-01-18 15:07:04,599 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2019-01-18 15:07:04,599 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-01-18 15:07:04,599 INFO L133 SettingsManager]: * User list type=DISABLED [2019-01-18 15:07:04,599 INFO L133 SettingsManager]: * Inline calls to unimplemented procedures=true [2019-01-18 15:07:04,600 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-01-18 15:07:04,600 INFO L133 SettingsManager]: * Explicit value domain=true [2019-01-18 15:07:04,600 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-01-18 15:07:04,600 INFO L133 SettingsManager]: * Octagon Domain=false [2019-01-18 15:07:04,600 INFO L133 SettingsManager]: * Abstract domain=ArrayDomain [2019-01-18 15:07:04,601 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-01-18 15:07:04,601 INFO L133 SettingsManager]: * Interval Domain=false [2019-01-18 15:07:04,602 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-18 15:07:04,602 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-18 15:07:04,602 INFO L133 SettingsManager]: * Use SBE=true [2019-01-18 15:07:04,602 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-18 15:07:04,602 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-18 15:07:04,603 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-18 15:07:04,603 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-18 15:07:04,603 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-18 15:07:04,603 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-18 15:07:04,603 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-18 15:07:04,604 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-18 15:07:04,604 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-18 15:07:04,604 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-18 15:07:04,604 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-18 15:07:04,604 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-18 15:07:04,605 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-18 15:07:04,605 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-18 15:07:04,605 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-18 15:07:04,605 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-18 15:07:04,605 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-18 15:07:04,606 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-18 15:07:04,606 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-01-18 15:07:04,606 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-18 15:07:04,606 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-18 15:07:04,607 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-01-18 15:07:04,607 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-01-18 15:07:04,639 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-18 15:07:04,655 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-18 15:07:04,659 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-18 15:07:04,661 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-01-18 15:07:04,662 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2019-01-18 15:07:04,662 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/HierarchicalTraceAbstraction/GeometricalIntegerCakeWithArray.bpl [2019-01-18 15:07:04,663 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/HierarchicalTraceAbstraction/GeometricalIntegerCakeWithArray.bpl' [2019-01-18 15:07:04,701 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-18 15:07:04,702 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-01-18 15:07:04,703 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-18 15:07:04,704 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-18 15:07:04,704 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-18 15:07:04,721 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 03:07:04" (1/1) ... [2019-01-18 15:07:04,732 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 03:07:04" (1/1) ... [2019-01-18 15:07:04,739 WARN L165 Inliner]: Program contained no entry procedure! [2019-01-18 15:07:04,739 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2019-01-18 15:07:04,739 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2019-01-18 15:07:04,742 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-18 15:07:04,743 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-18 15:07:04,743 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-18 15:07:04,743 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-18 15:07:04,755 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 03:07:04" (1/1) ... [2019-01-18 15:07:04,755 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 03:07:04" (1/1) ... [2019-01-18 15:07:04,756 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 03:07:04" (1/1) ... [2019-01-18 15:07:04,756 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 03:07:04" (1/1) ... [2019-01-18 15:07:04,763 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 03:07:04" (1/1) ... [2019-01-18 15:07:04,771 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 03:07:04" (1/1) ... [2019-01-18 15:07:04,772 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 03:07:04" (1/1) ... [2019-01-18 15:07:04,774 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-18 15:07:04,774 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-18 15:07:04,774 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-18 15:07:04,774 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-18 15:07:04,781 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 03:07:04" (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 [2019-01-18 15:07:04,844 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2019-01-18 15:07:04,844 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-01-18 15:07:04,844 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-01-18 15:07:05,301 INFO L278 CfgBuilder]: Using library mode [2019-01-18 15:07:05,302 INFO L286 CfgBuilder]: Removed 1 assue(true) statements. [2019-01-18 15:07:05,303 INFO L202 PluginConnector]: Adding new model GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 03:07:05 BoogieIcfgContainer [2019-01-18 15:07:05,303 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-18 15:07:05,304 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-01-18 15:07:05,304 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-01-18 15:07:05,305 INFO L276 PluginConnector]: Abstract Interpretation initialized [2019-01-18 15:07:05,306 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 03:07:05" (1/1) ... [2019-01-18 15:07:05,343 INFO L101 FixpointEngine]: Starting fixpoint engine with domain ArrayDomain (maxUnwinding=3, maxParallelStates=2) [2019-01-18 15:07:05,861 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-01-18 15:07:05,878 INFO L272 AbstractInterpreter]: Visited 9 different actions 9 times. Never merged. Never widened. Found 2 fixpoints after 2 different actions. Largest state had 0 variables. [2019-01-18 15:07:05,879 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-01-18 15:07:05,881 INFO L168 Benchmark]: Toolchain (without parser) took 1179.38 ms. Allocated memory is still 131.6 MB. Free memory was 104.5 MB in the beginning and 71.8 MB in the end (delta: 32.7 MB). Peak memory consumption was 32.7 MB. Max. memory is 7.1 GB. [2019-01-18 15:07:05,882 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.18 ms. Allocated memory is still 131.6 MB. Free memory is still 105.7 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-01-18 15:07:05,883 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.12 ms. Allocated memory is still 131.6 MB. Free memory was 104.2 MB in the beginning and 102.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-01-18 15:07:05,884 INFO L168 Benchmark]: Boogie Preprocessor took 30.91 ms. Allocated memory is still 131.6 MB. Free memory was 102.3 MB in the beginning and 101.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. [2019-01-18 15:07:05,886 INFO L168 Benchmark]: RCFGBuilder took 529.31 ms. Allocated memory is still 131.6 MB. Free memory was 101.2 MB in the beginning and 89.6 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB. [2019-01-18 15:07:05,887 INFO L168 Benchmark]: Abstract Interpretation took 575.36 ms. Allocated memory is still 131.6 MB. Free memory was 89.4 MB in the beginning and 71.8 MB in the end (delta: 17.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 7.1 GB. [2019-01-18 15:07:05,891 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 0.18 ms. Allocated memory is still 131.6 MB. Free memory is still 105.7 MB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 39.12 ms. Allocated memory is still 131.6 MB. Free memory was 104.2 MB in the beginning and 102.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 30.91 ms. Allocated memory is still 131.6 MB. Free memory was 102.3 MB in the beginning and 101.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 529.31 ms. Allocated memory is still 131.6 MB. Free memory was 101.2 MB in the beginning and 89.6 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 575.36 ms. Allocated memory is still 131.6 MB. Free memory was 89.4 MB in the beginning and 71.8 MB in the end (delta: 17.7 MB). Peak memory consumption was 17.7 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...