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/HiddenEquality-Safe.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 12:15:38,175 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 12:15:38,178 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 12:15:38,194 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 12:15:38,194 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 12:15:38,195 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 12:15:38,197 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 12:15:38,199 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 12:15:38,208 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 12:15:38,209 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 12:15:38,212 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 12:15:38,212 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2019-08-05 12:15:38,241 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 12:15:38,242 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 12:15:38,243 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 12:15:38,244 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 12:15:38,245 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 12:15:38,245 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 12:15:38,246 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 12:15:38,246 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... 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[2019-08-05 12:15:38,249 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 12:15:38,266 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-05 12:15:38,269 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-05 12:15:38,270 INFO L136 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2019-08-05 12:15:38,270 INFO L138 SettingsManager]: * Show backtranslation warnings=false [2019-08-05 12:15:38,271 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-08-05 12:15:38,271 INFO L138 SettingsManager]: * User list type=DISABLED [2019-08-05 12:15:38,271 INFO L138 SettingsManager]: * Inline calls to unimplemented procedures=true [2019-08-05 12:15:38,271 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-08-05 12:15:38,272 INFO L138 SettingsManager]: * Explicit value domain=true [2019-08-05 12:15:38,272 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-08-05 12:15:38,272 INFO L138 SettingsManager]: * Octagon Domain=false [2019-08-05 12:15:38,274 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-08-05 12:15:38,275 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-08-05 12:15:38,275 INFO L138 SettingsManager]: * Interval Domain=false [2019-08-05 12:15:38,276 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-05 12:15:38,276 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-05 12:15:38,276 INFO L138 SettingsManager]: * Use SBE=true [2019-08-05 12:15:38,276 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-05 12:15:38,277 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-05 12:15:38,277 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-05 12:15:38,277 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-05 12:15:38,283 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-05 12:15:38,284 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-05 12:15:38,284 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-05 12:15:38,284 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-05 12:15:38,284 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-05 12:15:38,284 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-05 12:15:38,285 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-05 12:15:38,285 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-05 12:15:38,285 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-05 12:15:38,285 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-05 12:15:38,286 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-05 12:15:38,286 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-05 12:15:38,286 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-05 12:15:38,286 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-05 12:15:38,287 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-08-05 12:15:38,287 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-05 12:15:38,287 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-05 12:15:38,287 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-05 12:15:38,287 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-08-05 12:15:38,334 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 12:15:38,349 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 12:15:38,352 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 12:15:38,354 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 12:15:38,354 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 12:15:38,355 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/HiddenEquality-Safe.bpl [2019-08-05 12:15:38,355 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/HiddenEquality-Safe.bpl' [2019-08-05 12:15:38,390 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 12:15:38,392 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 12:15:38,392 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 12:15:38,393 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 12:15:38,393 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 12:15:38,412 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "HiddenEquality-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:15:38" (1/1) ... [2019-08-05 12:15:38,422 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "HiddenEquality-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:15:38" (1/1) ... [2019-08-05 12:15:38,428 WARN L165 Inliner]: Program contained no entry procedure! [2019-08-05 12:15:38,429 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2019-08-05 12:15:38,429 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2019-08-05 12:15:38,431 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 12:15:38,432 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 12:15:38,433 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 12:15:38,433 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 12:15:38,445 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "HiddenEquality-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:15:38" (1/1) ... [2019-08-05 12:15:38,445 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "HiddenEquality-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:15:38" (1/1) ... [2019-08-05 12:15:38,445 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "HiddenEquality-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:15:38" (1/1) ... [2019-08-05 12:15:38,446 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "HiddenEquality-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:15:38" (1/1) ... [2019-08-05 12:15:38,449 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "HiddenEquality-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:15:38" (1/1) ... [2019-08-05 12:15:38,453 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "HiddenEquality-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:15:38" (1/1) ... [2019-08-05 12:15:38,456 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "HiddenEquality-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:15:38" (1/1) ... [2019-08-05 12:15:38,457 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 12:15:38,458 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 12:15:38,458 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 12:15:38,458 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 12:15:38,460 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "HiddenEquality-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:15:38" (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: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 12:15:38,530 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2019-08-05 12:15:38,530 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-05 12:15:38,530 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-05 12:15:38,660 INFO L275 CfgBuilder]: Using library mode [2019-08-05 12:15:38,660 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-08-05 12:15:38,661 INFO L202 PluginConnector]: Adding new model HiddenEquality-Safe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 12:15:38 BoogieIcfgContainer [2019-08-05 12:15:38,661 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 12:15:38,662 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-08-05 12:15:38,662 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-08-05 12:15:38,663 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-08-05 12:15:38,663 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "HiddenEquality-Safe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 12:15:38" (1/1) ... [2019-08-05 12:15:38,693 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2019-08-05 12:15:38,806 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-08-05 12:15:38,829 INFO L272 AbstractInterpreter]: Visited 5 different actions 17 times. Merged at 4 different actions 10 times. Widened at 1 different actions 1 times. Performed 48 root evaluator evaluations with a maximum evaluation depth of 5. Performed 48 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 1 fixpoints after 1 different actions. Largest state had 0 variables. [2019-08-05 12:15:38,829 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-08-05 12:15:38,833 INFO L168 Benchmark]: Toolchain (without parser) took 439.53 ms. Allocated memory is still 133.2 MB. Free memory was 102.8 MB in the beginning and 84.2 MB in the end (delta: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 7.1 GB. [2019-08-05 12:15:38,834 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.19 ms. Allocated memory is still 133.2 MB. Free memory is still 103.7 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-08-05 12:15:38,836 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.55 ms. Allocated memory is still 133.2 MB. Free memory was 102.8 MB in the beginning and 100.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2019-08-05 12:15:38,837 INFO L168 Benchmark]: Boogie Preprocessor took 25.44 ms. Allocated memory is still 133.2 MB. Free memory was 100.7 MB in the beginning and 99.8 MB in the end (delta: 838.9 kB). Peak memory consumption was 838.9 kB. Max. memory is 7.1 GB. [2019-08-05 12:15:38,838 INFO L168 Benchmark]: RCFGBuilder took 203.42 ms. Allocated memory is still 133.2 MB. Free memory was 99.8 MB in the beginning and 91.3 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 7.1 GB. [2019-08-05 12:15:38,839 INFO L168 Benchmark]: Abstract Interpretation took 167.20 ms. Allocated memory is still 133.2 MB. Free memory was 91.3 MB in the beginning and 84.2 MB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 7.1 GB. [2019-08-05 12:15:38,844 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 133.2 MB. Free memory is still 103.7 MB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 39.55 ms. Allocated memory is still 133.2 MB. Free memory was 102.8 MB in the beginning and 100.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.44 ms. Allocated memory is still 133.2 MB. Free memory was 100.7 MB in the beginning and 99.8 MB in the end (delta: 838.9 kB). Peak memory consumption was 838.9 kB. Max. memory is 7.1 GB. * RCFGBuilder took 203.42 ms. Allocated memory is still 133.2 MB. Free memory was 99.8 MB in the beginning and 91.3 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 167.20 ms. Allocated memory is still 133.2 MB. Free memory was 91.3 MB in the beginning and 84.2 MB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 29]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L21] x := 0; [L22] y := 0; [L25] x := x + 1; [L26] y := y + 1; [L25] x := x + 1; [L26] y := y + 1; [L29] assert x != 100 || y == 100; RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...