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/HiddenEqualityWithBranches.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 12:15:43,272 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 12:15:43,275 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 12:15:43,290 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 12:15:43,291 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 12:15:43,292 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 12:15:43,294 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 12:15:43,296 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 12:15:43,298 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 12:15:43,299 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 12:15:43,301 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 12:15:43,301 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 12:15:43,302 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 12:15:43,307 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 12:15:43,308 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 12:15:43,310 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 12:15:43,311 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 12:15:43,311 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 12:15:43,320 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 12:15:43,326 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 12:15:43,329 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 12:15:43,330 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 12:15:43,331 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 12:15:43,333 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 12:15:43,336 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-05 12:15:43,339 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 12:15:43,343 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 12:15:43,344 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 12:15:43,345 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 12:15:43,346 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 12:15:43,346 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 12:15:43,347 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 12:15:43,347 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... 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[2019-08-05 12:15:43,352 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/array-bench/reach_32bit_compound_exp_cong.epf [2019-08-05 12:15:43,372 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-05 12:15:43,372 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-05 12:15:43,373 INFO L136 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2019-08-05 12:15:43,373 INFO L138 SettingsManager]: * Show backtranslation warnings=false [2019-08-05 12:15:43,373 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-08-05 12:15:43,373 INFO L138 SettingsManager]: * User list type=DISABLED [2019-08-05 12:15:43,374 INFO L138 SettingsManager]: * Inline calls to unimplemented procedures=true [2019-08-05 12:15:43,374 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-08-05 12:15:43,374 INFO L138 SettingsManager]: * Explicit value domain=true [2019-08-05 12:15:43,374 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-08-05 12:15:43,375 INFO L138 SettingsManager]: * Octagon Domain=false [2019-08-05 12:15:43,375 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-08-05 12:15:43,375 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-08-05 12:15:43,375 INFO L138 SettingsManager]: * Interval Domain=false [2019-08-05 12:15:43,376 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-05 12:15:43,376 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-05 12:15:43,376 INFO L138 SettingsManager]: * Use SBE=true [2019-08-05 12:15:43,377 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-05 12:15:43,377 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-05 12:15:43,377 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-05 12:15:43,377 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-05 12:15:43,377 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-05 12:15:43,378 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-05 12:15:43,378 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-05 12:15:43,378 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-05 12:15:43,378 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-05 12:15:43,378 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-05 12:15:43,379 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-05 12:15:43,379 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-05 12:15:43,379 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-05 12:15:43,379 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-05 12:15:43,379 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-05 12:15:43,380 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-05 12:15:43,380 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-05 12:15:43,380 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-05 12:15:43,380 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-08-05 12:15:43,381 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-05 12:15:43,381 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-05 12:15:43,381 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-05 12:15:43,381 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-08-05 12:15:43,428 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 12:15:43,441 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 12:15:43,444 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 12:15:43,446 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 12:15:43,447 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 12:15:43,447 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/HiddenEqualityWithBranches.bpl [2019-08-05 12:15:43,448 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/HiddenEqualityWithBranches.bpl' [2019-08-05 12:15:43,480 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 12:15:43,482 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 12:15:43,483 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 12:15:43,483 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 12:15:43,483 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 12:15:43,501 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "HiddenEqualityWithBranches.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:15:43" (1/1) ... [2019-08-05 12:15:43,510 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "HiddenEqualityWithBranches.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:15:43" (1/1) ... [2019-08-05 12:15:43,516 WARN L165 Inliner]: Program contained no entry procedure! [2019-08-05 12:15:43,516 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2019-08-05 12:15:43,516 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2019-08-05 12:15:43,518 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 12:15:43,519 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 12:15:43,519 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 12:15:43,519 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 12:15:43,530 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "HiddenEqualityWithBranches.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:15:43" (1/1) ... [2019-08-05 12:15:43,531 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "HiddenEqualityWithBranches.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:15:43" (1/1) ... [2019-08-05 12:15:43,531 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "HiddenEqualityWithBranches.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:15:43" (1/1) ... [2019-08-05 12:15:43,532 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "HiddenEqualityWithBranches.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:15:43" (1/1) ... [2019-08-05 12:15:43,534 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "HiddenEqualityWithBranches.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:15:43" (1/1) ... [2019-08-05 12:15:43,538 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "HiddenEqualityWithBranches.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:15:43" (1/1) ... [2019-08-05 12:15:43,539 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "HiddenEqualityWithBranches.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:15:43" (1/1) ... [2019-08-05 12:15:43,540 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 12:15:43,541 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 12:15:43,541 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 12:15:43,541 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 12:15:43,542 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "HiddenEqualityWithBranches.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:15:43" (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 [2019-08-05 12:15:43,612 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2019-08-05 12:15:43,612 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-05 12:15:43,612 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-05 12:15:43,798 INFO L275 CfgBuilder]: Using library mode [2019-08-05 12:15:43,798 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-08-05 12:15:43,800 INFO L202 PluginConnector]: Adding new model HiddenEqualityWithBranches.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 12:15:43 BoogieIcfgContainer [2019-08-05 12:15:43,800 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 12:15:43,801 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-08-05 12:15:43,801 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-08-05 12:15:43,801 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-08-05 12:15:43,802 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "HiddenEqualityWithBranches.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 12:15:43" (1/1) ... [2019-08-05 12:15:43,830 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2019-08-05 12:15:43,956 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-08-05 12:15:43,979 INFO L272 AbstractInterpreter]: Visited 8 different actions 29 times. Merged at 7 different actions 13 times. Widened at 1 different actions 1 times. Performed 96 root evaluator evaluations with a maximum evaluation depth of 5. Performed 96 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 5 fixpoints after 3 different actions. Largest state had 0 variables. [2019-08-05 12:15:43,979 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-08-05 12:15:43,982 INFO L168 Benchmark]: Toolchain (without parser) took 499.06 ms. Allocated memory is still 132.6 MB. Free memory was 106.6 MB in the beginning and 87.0 MB in the end (delta: 19.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 7.1 GB. [2019-08-05 12:15:43,984 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.19 ms. Allocated memory is still 132.6 MB. Free memory was 107.8 MB in the beginning and 107.6 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-08-05 12:15:43,985 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.04 ms. Allocated memory is still 132.6 MB. Free memory was 106.6 MB in the beginning and 104.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-08-05 12:15:43,986 INFO L168 Benchmark]: Boogie Preprocessor took 21.71 ms. Allocated memory is still 132.6 MB. Free memory was 104.7 MB in the beginning and 103.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 7.1 GB. [2019-08-05 12:15:43,988 INFO L168 Benchmark]: RCFGBuilder took 259.11 ms. Allocated memory is still 132.6 MB. Free memory was 103.5 MB in the beginning and 94.4 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2019-08-05 12:15:43,989 INFO L168 Benchmark]: Abstract Interpretation took 178.49 ms. Allocated memory is still 132.6 MB. Free memory was 94.4 MB in the beginning and 87.0 MB in the end (delta: 7.4 MB). Peak memory consumption was 7.4 MB. Max. memory is 7.1 GB. [2019-08-05 12:15:43,993 INFO L335 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 0.19 ms. Allocated memory is still 132.6 MB. Free memory was 107.8 MB in the beginning and 107.6 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 36.04 ms. Allocated memory is still 132.6 MB. Free memory was 106.6 MB in the beginning and 104.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 21.71 ms. Allocated memory is still 132.6 MB. Free memory was 104.7 MB in the beginning and 103.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 259.11 ms. Allocated memory is still 132.6 MB. Free memory was 103.5 MB in the beginning and 94.4 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 178.49 ms. Allocated memory is still 132.6 MB. Free memory was 94.4 MB in the beginning and 87.0 MB in the end (delta: 7.4 MB). Peak memory consumption was 7.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 30]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L14] x := 0; [L15] y := 0; [L18] COND FALSE !(x >= 256) [L21] x := x + 1; [L23] COND FALSE !(y >= 256) [L26] y := y + 1; [L18] COND FALSE !(x >= 256) [L21] x := x + 1; [L23] COND FALSE !(y >= 256) [L26] y := y + 1; [L30] assert x != 100 || y == 100; RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...