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_compound_oct_cong.epf -i ../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/PointerIncrement.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-4b9831f [2018-12-23 14:55:22,342 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-23 14:55:22,344 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-23 14:55:22,360 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-23 14:55:22,361 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-23 14:55:22,364 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-23 14:55:22,366 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-23 14:55:22,369 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-23 14:55:22,372 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-23 14:55:22,381 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-23 14:55:22,382 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-12-23 14:55:22,429 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/array-bench/reach_32bit_compound_oct_cong.epf [2018-12-23 14:55:22,447 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-23 14:55:22,449 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-23 14:55:22,450 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2018-12-23 14:55:22,450 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2018-12-23 14:55:22,451 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-23 14:55:22,451 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-23 14:55:22,451 INFO L133 SettingsManager]: * Inline calls to unimplemented procedures=true [2018-12-23 14:55:22,452 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-23 14:55:22,452 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-23 14:55:22,452 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-23 14:55:22,452 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-23 14:55:22,452 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-23 14:55:22,453 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-23 14:55:22,454 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-23 14:55:22,454 INFO L133 SettingsManager]: * Use SBE=true [2018-12-23 14:55:22,454 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-23 14:55:22,454 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-23 14:55:22,454 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-23 14:55:22,456 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-23 14:55:22,457 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-23 14:55:22,457 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-23 14:55:22,457 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-23 14:55:22,457 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-23 14:55:22,457 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-23 14:55:22,458 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-23 14:55:22,458 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-23 14:55:22,458 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-23 14:55:22,458 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-23 14:55:22,459 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-23 14:55:22,459 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-23 14:55:22,459 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-23 14:55:22,459 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-23 14:55:22,459 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-23 14:55:22,460 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-23 14:55:22,460 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-23 14:55:22,460 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-23 14:55:22,460 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-23 14:55:22,460 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-12-23 14:55:22,505 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-23 14:55:22,518 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-23 14:55:22,522 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-23 14:55:22,523 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-12-23 14:55:22,524 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-12-23 14:55:22,524 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/PointerIncrement.bpl [2018-12-23 14:55:22,525 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/PointerIncrement.bpl' [2018-12-23 14:55:22,575 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-23 14:55:22,577 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-12-23 14:55:22,578 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-23 14:55:22,578 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-23 14:55:22,578 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-23 14:55:22,596 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "PointerIncrement.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.12 02:55:22" (1/1) ... [2018-12-23 14:55:22,611 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "PointerIncrement.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.12 02:55:22" (1/1) ... [2018-12-23 14:55:22,640 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-23 14:55:22,641 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-23 14:55:22,642 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-23 14:55:22,642 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-23 14:55:22,655 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "PointerIncrement.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.12 02:55:22" (1/1) ... [2018-12-23 14:55:22,655 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "PointerIncrement.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.12 02:55:22" (1/1) ... [2018-12-23 14:55:22,657 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "PointerIncrement.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.12 02:55:22" (1/1) ... [2018-12-23 14:55:22,657 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "PointerIncrement.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.12 02:55:22" (1/1) ... [2018-12-23 14:55:22,663 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "PointerIncrement.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.12 02:55:22" (1/1) ... [2018-12-23 14:55:22,667 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "PointerIncrement.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.12 02:55:22" (1/1) ... [2018-12-23 14:55:22,668 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "PointerIncrement.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.12 02:55:22" (1/1) ... [2018-12-23 14:55:22,670 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-23 14:55:22,671 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-23 14:55:22,671 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-23 14:55:22,671 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-23 14:55:22,672 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "PointerIncrement.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.12 02:55:22" (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 [2018-12-23 14:55:22,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-23 14:55:22,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-23 14:55:23,261 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-23 14:55:23,262 INFO L280 CfgBuilder]: Removed 9 assue(true) statements. [2018-12-23 14:55:23,262 INFO L202 PluginConnector]: Adding new model PointerIncrement.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 02:55:23 BoogieIcfgContainer [2018-12-23 14:55:23,263 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-23 14:55:23,263 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2018-12-23 14:55:23,264 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2018-12-23 14:55:23,264 INFO L276 PluginConnector]: Abstract Interpretation initialized [2018-12-23 14:55:23,265 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "PointerIncrement.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 02:55:23" (1/1) ... [2018-12-23 14:55:23,321 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-23 14:55:28,697 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-23 14:55:28,720 INFO L272 AbstractInterpreter]: Visited 15 different actions 194 times. Merged at 12 different actions 148 times. Widened at 2 different actions 18 times. Performed 704 root evaluator evaluations with a maximum evaluation depth of 3. Performed 704 inverse root evaluator evaluations with a maximum inverse evaluation depth of 2. Found 12 fixpoints after 3 different actions. Largest state had 0 variables. [2018-12-23 14:55:28,723 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2018-12-23 14:55:28,724 INFO L168 Benchmark]: Toolchain (without parser) took 6148.74 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 25.7 MB). Free memory was 1.5 GB in the beginning and 1.1 GB in the end (delta: 329.9 MB). Peak memory consumption was 355.5 MB. Max. memory is 7.1 GB. [2018-12-23 14:55:28,728 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.25 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-12-23 14:55:28,728 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.28 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-12-23 14:55:28,729 INFO L168 Benchmark]: Boogie Preprocessor took 28.80 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-12-23 14:55:28,730 INFO L168 Benchmark]: RCFGBuilder took 592.11 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-12-23 14:55:28,731 INFO L168 Benchmark]: Abstract Interpretation took 5459.34 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 25.7 MB). Free memory was 1.5 GB in the beginning and 1.1 GB in the end (delta: 308.7 MB). Peak memory consumption was 334.4 MB. Max. memory is 7.1 GB. [2018-12-23 14:55:28,736 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 0.25 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 63.28 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.80 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 592.11 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 5459.34 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 25.7 MB). Free memory was 1.5 GB in the beginning and 1.1 GB in the end (delta: 308.7 MB). Peak memory consumption was 334.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 58]: Unable to prove that procedure precondition always holds and assertion always holds Unable to prove that procedure precondition always holds and assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L37] #NULL := { base: 0, offset: 0 }; [L38] #valid[0] := false; [L71-L76] modifies #valid, #length; [L71] ensures old(#valid)[#res!base] == false; [L71-L72] ensures #valid == old(#valid)[#res!base := true]; [L71-L73] ensures #res!offset == 0; [L71-L74] ensures #res!base != 0; [L71-L75] ensures #length == old(#length)[#res!base := ~size]; [L10] ~p~1 := #t~malloc0; [L11] ~q~1 := ~p~1; [L14] #t~short2 := ~q~1!offset < { base: ~p~1!base, offset: ~p~1!offset + 400 }!offset; [L15] COND TRUE #t~short2 [L58] requires #valid[#ptr!base]; - UnprovableResult [Line: 58]: Unable to prove that procedure precondition always holds and assertion always holds Unable to prove that procedure precondition always holds and assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L37] #NULL := { base: 0, offset: 0 }; [L38] #valid[0] := false; [L71-L76] modifies #valid, #length; [L71] ensures old(#valid)[#res!base] == false; [L71-L72] ensures #valid == old(#valid)[#res!base := true]; [L71-L73] ensures #res!offset == 0; [L71-L74] ensures #res!base != 0; [L71-L75] ensures #length == old(#length)[#res!base := ~size]; [L10] ~p~1 := #t~malloc0; [L11] ~q~1 := ~p~1; [L14] #t~short2 := ~q~1!offset < { base: ~p~1!base, offset: ~p~1!offset + 400 }!offset; [L15] COND TRUE #t~short2 [L58] requires #valid[#ptr!base]; [L58-L59] requires #sizeOfReadType + #ptr!offset <= #length[#ptr!base]; RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...