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_compound_exp_cong.epf -i ../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/PointerIncrement.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f57a05f [2019-01-08 14:49:58,125 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-08 14:49:58,127 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-08 14:49:58,140 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-08 14:49:58,140 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-08 14:49:58,142 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-08 14:49:58,143 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-08 14:49:58,145 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-08 14:49:58,147 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-08 14:49:58,148 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-08 14:49:58,149 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2019-01-08 14:49:58,183 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/array-bench/reach_32bit_compound_exp_cong.epf [2019-01-08 14:49:58,209 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-08 14:49:58,209 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-08 14:49:58,210 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2019-01-08 14:49:58,210 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2019-01-08 14:49:58,211 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-01-08 14:49:58,211 INFO L133 SettingsManager]: * User list type=DISABLED [2019-01-08 14:49:58,211 INFO L133 SettingsManager]: * Inline calls to unimplemented procedures=true [2019-01-08 14:49:58,211 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-01-08 14:49:58,212 INFO L133 SettingsManager]: * Explicit value domain=true [2019-01-08 14:49:58,212 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-01-08 14:49:58,212 INFO L133 SettingsManager]: * Octagon Domain=false [2019-01-08 14:49:58,212 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2019-01-08 14:49:58,212 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-01-08 14:49:58,213 INFO L133 SettingsManager]: * Interval Domain=false [2019-01-08 14:49:58,213 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-08 14:49:58,214 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-08 14:49:58,215 INFO L133 SettingsManager]: * Use SBE=true [2019-01-08 14:49:58,215 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-08 14:49:58,215 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-08 14:49:58,215 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-08 14:49:58,216 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-08 14:49:58,216 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-08 14:49:58,216 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-08 14:49:58,216 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-08 14:49:58,216 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-08 14:49:58,217 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-08 14:49:58,218 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-08 14:49:58,218 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-08 14:49:58,219 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-08 14:49:58,219 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-08 14:49:58,220 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-08 14:49:58,220 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:8192 -smt2 -in -t:2000 [2019-01-08 14:49:58,220 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-08 14:49:58,220 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-08 14:49:58,220 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-08 14:49:58,221 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-01-08 14:49:58,221 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-08 14:49:58,221 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:8192 -smt2 -in [2019-01-08 14:49:58,221 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-01-08 14:49:58,221 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-01-08 14:49:58,274 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-08 14:49:58,290 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-08 14:49:58,297 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-08 14:49:58,298 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-01-08 14:49:58,301 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2019-01-08 14:49:58,302 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/PointerIncrement.bpl [2019-01-08 14:49:58,302 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/PointerIncrement.bpl' [2019-01-08 14:49:58,372 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-08 14:49:58,374 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-01-08 14:49:58,375 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-08 14:49:58,375 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-08 14:49:58,375 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-08 14:49:58,393 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "PointerIncrement.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.01 02:49:58" (1/1) ... [2019-01-08 14:49:58,409 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "PointerIncrement.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.01 02:49:58" (1/1) ... [2019-01-08 14:49:58,441 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-08 14:49:58,442 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-08 14:49:58,443 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-08 14:49:58,443 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-08 14:49:58,456 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "PointerIncrement.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.01 02:49:58" (1/1) ... [2019-01-08 14:49:58,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "PointerIncrement.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.01 02:49:58" (1/1) ... [2019-01-08 14:49:58,457 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "PointerIncrement.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.01 02:49:58" (1/1) ... [2019-01-08 14:49:58,458 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "PointerIncrement.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.01 02:49:58" (1/1) ... [2019-01-08 14:49:58,464 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "PointerIncrement.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.01 02:49:58" (1/1) ... [2019-01-08 14:49:58,469 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "PointerIncrement.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.01 02:49:58" (1/1) ... [2019-01-08 14:49:58,471 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "PointerIncrement.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.01 02:49:58" (1/1) ... [2019-01-08 14:49:58,473 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-08 14:49:58,474 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-08 14:49:58,474 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-08 14:49:58,474 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-08 14:49:58,475 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "PointerIncrement.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.01 02:49:58" (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:8192 -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:8192 -smt2 -in -t:2000 [2019-01-08 14:49:58,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-08 14:49:58,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-08 14:49:58,909 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-08 14:49:58,909 INFO L286 CfgBuilder]: Removed 9 assue(true) statements. [2019-01-08 14:49:58,910 INFO L202 PluginConnector]: Adding new model PointerIncrement.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.01 02:49:58 BoogieIcfgContainer [2019-01-08 14:49:58,911 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-08 14:49:58,911 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-01-08 14:49:58,911 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-01-08 14:49:58,912 INFO L276 PluginConnector]: Abstract Interpretation initialized [2019-01-08 14:49:58,913 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "PointerIncrement.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.01 02:49:58" (1/1) ... [2019-01-08 14:49:58,943 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2019-01-08 14:49:59,142 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-01-08 14:49:59,162 INFO L272 AbstractInterpreter]: Visited 15 different actions 49 times. Merged at 12 different actions 28 times. Never widened. Performed 295 root evaluator evaluations with a maximum evaluation depth of 3. Performed 295 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 3 fixpoints after 2 different actions. Largest state had 0 variables. [2019-01-08 14:49:59,164 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-01-08 14:49:59,166 INFO L168 Benchmark]: Toolchain (without parser) took 792.92 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2019-01-08 14:49:59,168 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 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. [2019-01-08 14:49:59,169 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.99 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. [2019-01-08 14:49:59,170 INFO L168 Benchmark]: Boogie Preprocessor took 31.26 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. [2019-01-08 14:49:59,171 INFO L168 Benchmark]: RCFGBuilder took 436.64 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 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. [2019-01-08 14:49:59,172 INFO L168 Benchmark]: Abstract Interpretation took 253.40 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: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2019-01-08 14:49:59,179 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 0.21 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 66.99 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 31.26 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 436.64 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 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 253.40 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: 10.6 MB). Peak memory consumption was 10.6 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...