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_oct.epf -i ../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/HierarchicalTraceAbstraction/GeometricalIntegerCakeWithArray.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-a9d37a5-m [2019-02-28 14:07:38,600 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-02-28 14:07:38,602 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-02-28 14:07:38,614 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-02-28 14:07:38,615 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-02-28 14:07:38,616 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-02-28 14:07:38,617 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-02-28 14:07:38,619 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-02-28 14:07:38,621 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-02-28 14:07:38,622 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-02-28 14:07:38,623 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2019-02-28 14:07:38,651 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/array-bench/reach_32bit_oct.epf [2019-02-28 14:07:38,677 INFO L110 SettingsManager]: Loading preferences was successful [2019-02-28 14:07:38,678 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-02-28 14:07:38,679 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2019-02-28 14:07:38,679 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2019-02-28 14:07:38,679 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-02-28 14:07:38,680 INFO L133 SettingsManager]: * User list type=DISABLED [2019-02-28 14:07:38,680 INFO L133 SettingsManager]: * Inline calls to unimplemented procedures=true [2019-02-28 14:07:38,680 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-02-28 14:07:38,681 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-02-28 14:07:38,681 INFO L133 SettingsManager]: * Underlying domain=OctagonDomain [2019-02-28 14:07:38,681 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2019-02-28 14:07:38,681 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-02-28 14:07:38,681 INFO L133 SettingsManager]: * Interval Domain=false [2019-02-28 14:07:38,682 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-02-28 14:07:38,682 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-02-28 14:07:38,683 INFO L133 SettingsManager]: * Use SBE=true [2019-02-28 14:07:38,684 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-02-28 14:07:38,684 INFO L133 SettingsManager]: * sizeof long=4 [2019-02-28 14:07:38,684 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-02-28 14:07:38,684 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-02-28 14:07:38,684 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-02-28 14:07:38,685 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-02-28 14:07:38,685 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-02-28 14:07:38,685 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-02-28 14:07:38,685 INFO L133 SettingsManager]: * sizeof long double=12 [2019-02-28 14:07:38,685 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-02-28 14:07:38,686 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-02-28 14:07:38,687 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-02-28 14:07:38,687 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-02-28 14:07:38,687 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-02-28 14:07:38,688 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:16092 -smt2 -in -t:20000 [2019-02-28 14:07:38,688 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-02-28 14:07:38,688 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-02-28 14:07:38,688 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-02-28 14:07:38,688 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-02-28 14:07:38,689 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-02-28 14:07:38,689 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:16092 -smt2 -in [2019-02-28 14:07:38,689 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-02-28 14:07:38,689 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-02-28 14:07:38,745 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-02-28 14:07:38,758 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-02-28 14:07:38,763 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-02-28 14:07:38,765 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-02-28 14:07:38,766 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2019-02-28 14:07:38,767 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/HierarchicalTraceAbstraction/GeometricalIntegerCakeWithArray.bpl [2019-02-28 14:07:38,767 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/HierarchicalTraceAbstraction/GeometricalIntegerCakeWithArray.bpl' [2019-02-28 14:07:38,819 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-02-28 14:07:38,821 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-02-28 14:07:38,822 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-02-28 14:07:38,823 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-02-28 14:07:38,823 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-02-28 14:07:38,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.02 02:07:38" (1/1) ... [2019-02-28 14:07:38,853 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.02 02:07:38" (1/1) ... [2019-02-28 14:07:38,859 WARN L165 Inliner]: Program contained no entry procedure! [2019-02-28 14:07:38,859 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2019-02-28 14:07:38,860 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2019-02-28 14:07:38,862 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-02-28 14:07:38,862 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-02-28 14:07:38,863 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-02-28 14:07:38,863 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-02-28 14:07:38,875 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.02 02:07:38" (1/1) ... [2019-02-28 14:07:38,875 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.02 02:07:38" (1/1) ... [2019-02-28 14:07:38,877 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.02 02:07:38" (1/1) ... [2019-02-28 14:07:38,878 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.02 02:07:38" (1/1) ... [2019-02-28 14:07:38,883 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.02 02:07:38" (1/1) ... [2019-02-28 14:07:38,889 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.02 02:07:38" (1/1) ... [2019-02-28 14:07:38,890 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.02 02:07:38" (1/1) ... [2019-02-28 14:07:38,892 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-02-28 14:07:38,892 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-02-28 14:07:38,892 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-02-28 14:07:38,895 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-02-28 14:07:38,896 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.02 02:07:38" (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:16092 -smt2 -in -t:20000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:16092 -smt2 -in -t:20000 [2019-02-28 14:07:38,967 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2019-02-28 14:07:38,967 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-02-28 14:07:38,968 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-02-28 14:07:39,338 INFO L278 CfgBuilder]: Using library mode [2019-02-28 14:07:39,338 INFO L286 CfgBuilder]: Removed 1 assue(true) statements. [2019-02-28 14:07:39,340 INFO L202 PluginConnector]: Adding new model GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.02 02:07:39 BoogieIcfgContainer [2019-02-28 14:07:39,340 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-02-28 14:07:39,341 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-02-28 14:07:39,341 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-02-28 14:07:39,341 INFO L276 PluginConnector]: Abstract Interpretation initialized [2019-02-28 14:07:39,342 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.02 02:07:39" (1/1) ... [2019-02-28 14:07:39,389 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2019-02-28 14:07:39,662 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-02-28 14:07:39,679 INFO L272 AbstractInterpreter]: Visited 9 different actions 10 times. Merged at 2 different actions 2 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 0 variables. [2019-02-28 14:07:39,681 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-02-28 14:07:39,683 INFO L168 Benchmark]: Toolchain (without parser) took 863.38 ms. Allocated memory is still 132.1 MB. Free memory was 106.3 MB in the beginning and 81.9 MB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. [2019-02-28 14:07:39,685 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 132.1 MB. Free memory is still 107.5 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-02-28 14:07:39,686 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.54 ms. Allocated memory is still 132.1 MB. Free memory was 106.1 MB in the beginning and 104.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. [2019-02-28 14:07:39,687 INFO L168 Benchmark]: Boogie Preprocessor took 29.46 ms. Allocated memory is still 132.1 MB. Free memory was 104.3 MB in the beginning and 103.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. [2019-02-28 14:07:39,688 INFO L168 Benchmark]: RCFGBuilder took 447.58 ms. Allocated memory is still 132.1 MB. Free memory was 103.1 MB in the beginning and 91.9 MB in the end (delta: 11.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. [2019-02-28 14:07:39,689 INFO L168 Benchmark]: Abstract Interpretation took 340.85 ms. Allocated memory is still 132.1 MB. Free memory was 91.7 MB in the beginning and 81.9 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2019-02-28 14:07:39,694 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 0.21 ms. Allocated memory is still 132.1 MB. Free memory is still 107.5 MB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 40.54 ms. Allocated memory is still 132.1 MB. Free memory was 106.1 MB in the beginning and 104.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.46 ms. Allocated memory is still 132.1 MB. Free memory was 104.3 MB in the beginning and 103.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 447.58 ms. Allocated memory is still 132.1 MB. Free memory was 103.1 MB in the beginning and 91.9 MB in the end (delta: 11.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 340.85 ms. Allocated memory is still 132.1 MB. Free memory was 91.7 MB in the beginning and 81.9 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 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...