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/doubleLoopUniformIterations.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-c78c21b [2018-12-03 20:36:29,333 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 20:36:29,335 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 20:36:29,351 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-03 20:36:29,351 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-03 20:36:29,353 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-03 20:36:29,354 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-03 20:36:29,356 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-03 20:36:29,358 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-03 20:36:29,358 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-03 20:36:29,359 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-12-03 20:36:29,384 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 [2018-12-03 20:36:29,410 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 20:36:29,410 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 20:36:29,411 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2018-12-03 20:36:29,412 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2018-12-03 20:36:29,412 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 20:36:29,412 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 20:36:29,412 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 20:36:29,413 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 20:36:29,413 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-03 20:36:29,413 INFO L133 SettingsManager]: * Abstract domain=ArrayDomain [2018-12-03 20:36:29,413 INFO L133 SettingsManager]: * Log string format=TERM [2018-12-03 20:36:29,413 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-03 20:36:29,414 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 20:36:29,414 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-03 20:36:29,415 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-03 20:36:29,415 INFO L133 SettingsManager]: * Use SBE=true [2018-12-03 20:36:29,415 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 20:36:29,415 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-03 20:36:29,416 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-03 20:36:29,416 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-03 20:36:29,416 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 20:36:29,416 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-03 20:36:29,416 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 20:36:29,417 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-03 20:36:29,417 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-03 20:36:29,417 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-03 20:36:29,417 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-03 20:36:29,417 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 20:36:29,418 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 20:36:29,418 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 20:36:29,418 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 20:36:29,418 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 20:36:29,419 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 20:36:29,419 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-03 20:36:29,419 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-03 20:36:29,419 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 20:36:29,419 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-03 20:36:29,420 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-03 20:36:29,420 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-12-03 20:36:29,469 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 20:36:29,490 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 20:36:29,497 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 20:36:29,501 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-12-03 20:36:29,501 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-12-03 20:36:29,502 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/doubleLoopUniformIterations.bpl [2018-12-03 20:36:29,503 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/doubleLoopUniformIterations.bpl' [2018-12-03 20:36:29,548 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 20:36:29,550 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-12-03 20:36:29,551 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 20:36:29,551 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 20:36:29,551 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 20:36:29,575 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "doubleLoopUniformIterations.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:36:29" (1/1) ... [2018-12-03 20:36:29,587 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "doubleLoopUniformIterations.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:36:29" (1/1) ... [2018-12-03 20:36:29,597 WARN L165 Inliner]: Program contained no entry procedure! [2018-12-03 20:36:29,597 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2018-12-03 20:36:29,598 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2018-12-03 20:36:29,601 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 20:36:29,602 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 20:36:29,602 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 20:36:29,602 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 20:36:29,619 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "doubleLoopUniformIterations.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:36:29" (1/1) ... [2018-12-03 20:36:29,620 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "doubleLoopUniformIterations.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:36:29" (1/1) ... [2018-12-03 20:36:29,620 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "doubleLoopUniformIterations.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:36:29" (1/1) ... [2018-12-03 20:36:29,620 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "doubleLoopUniformIterations.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:36:29" (1/1) ... [2018-12-03 20:36:29,624 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "doubleLoopUniformIterations.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:36:29" (1/1) ... [2018-12-03 20:36:29,631 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "doubleLoopUniformIterations.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:36:29" (1/1) ... [2018-12-03 20:36:29,632 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "doubleLoopUniformIterations.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:36:29" (1/1) ... [2018-12-03 20:36:29,633 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 20:36:29,637 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 20:36:29,637 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 20:36:29,637 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 20:36:29,639 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "doubleLoopUniformIterations.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 08:36:29" (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 [2018-12-03 20:36:29,717 INFO L130 BoogieDeclarations]: Found specification of procedure Main [2018-12-03 20:36:29,718 INFO L138 BoogieDeclarations]: Found implementation of procedure Main [2018-12-03 20:36:29,945 INFO L272 CfgBuilder]: Using library mode [2018-12-03 20:36:29,945 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-03 20:36:29,946 INFO L202 PluginConnector]: Adding new model doubleLoopUniformIterations.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 08:36:29 BoogieIcfgContainer [2018-12-03 20:36:29,946 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 20:36:29,947 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2018-12-03 20:36:29,947 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2018-12-03 20:36:29,947 INFO L276 PluginConnector]: Abstract Interpretation initialized [2018-12-03 20:36:29,948 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "doubleLoopUniformIterations.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 08:36:29" (1/1) ... [2018-12-03 20:36:30,022 INFO L101 FixpointEngine]: Starting fixpoint engine with domain ArrayDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 20:36:30,367 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 20:36:30,388 INFO L272 AbstractInterpreter]: Visited 10 different actions 56 times. Merged at 6 different actions 27 times. Widened at 2 different actions 2 times. Found 12 fixpoints after 4 different actions. Largest state had 0 variables. [2018-12-03 20:36:30,391 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2018-12-03 20:36:30,392 INFO L168 Benchmark]: Toolchain (without parser) took 843.91 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-12-03 20:36:30,395 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.25 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. [2018-12-03 20:36:30,396 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.94 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. [2018-12-03 20:36:30,397 INFO L168 Benchmark]: Boogie Preprocessor took 34.37 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. [2018-12-03 20:36:30,397 INFO L168 Benchmark]: RCFGBuilder took 308.99 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. [2018-12-03 20:36:30,399 INFO L168 Benchmark]: Abstract Interpretation took 444.49 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. [2018-12-03 20:36:30,407 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 0.25 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 50.94 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 34.37 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 308.99 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 444.49 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: 24]: 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] x := 0; [L14] y := 0; [L16] x := x + 1; [L17] y := y + 1; [L16] x := x + 1; [L17] y := y + 1; [L16] x := x + 1; [L17] y := y + 1; [L19] COND FALSE !(x != 0) [L23] assert x == 0; [L24] assert y == 0; - PositiveResult [Line: 23]: assertion always holds For all program executions holds that assertion always holds at this location RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...