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/abstractInterpretation/regression/open/int/recursive-Collatz.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 12:18:48,124 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 12:18:48,127 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 12:18:48,139 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 12:18:48,139 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 12:18:48,140 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 12:18:48,142 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 12:18:48,143 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 12:18:48,145 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 12:18:48,146 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 12:18:48,147 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 12:18:48,148 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 12:18:48,148 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 12:18:48,149 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 12:18:48,150 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 12:18:48,151 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 12:18:48,152 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 12:18:48,153 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 12:18:48,155 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 12:18:48,157 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 12:18:48,159 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 12:18:48,160 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 12:18:48,161 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 12:18:48,162 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 12:18:48,164 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 12:18:48,165 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 12:18:48,165 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 12:18:48,166 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 12:18:48,166 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 12:18:48,167 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 12:18:48,167 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 12:18:48,168 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 12:18:48,169 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 12:18:48,170 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 12:18:48,171 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 12:18:48,171 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 12:18:48,172 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 12:18:48,172 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 12:18:48,172 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 12:18:48,173 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 12:18:48,174 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 12:18:48,175 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 12:18:48,199 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-05 12:18:48,199 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-05 12:18:48,200 INFO L136 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2019-08-05 12:18:48,202 INFO L138 SettingsManager]: * Show backtranslation warnings=false [2019-08-05 12:18:48,202 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-08-05 12:18:48,203 INFO L138 SettingsManager]: * User list type=DISABLED [2019-08-05 12:18:48,203 INFO L138 SettingsManager]: * Inline calls to unimplemented procedures=true [2019-08-05 12:18:48,203 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-08-05 12:18:48,203 INFO L138 SettingsManager]: * Explicit value domain=true [2019-08-05 12:18:48,203 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-08-05 12:18:48,204 INFO L138 SettingsManager]: * Octagon Domain=false [2019-08-05 12:18:48,204 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-08-05 12:18:48,204 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-08-05 12:18:48,204 INFO L138 SettingsManager]: * Interval Domain=false [2019-08-05 12:18:48,205 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-05 12:18:48,206 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-05 12:18:48,206 INFO L138 SettingsManager]: * Use SBE=true [2019-08-05 12:18:48,207 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-05 12:18:48,207 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-05 12:18:48,207 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-05 12:18:48,207 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-05 12:18:48,207 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-05 12:18:48,208 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-05 12:18:48,208 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-05 12:18:48,208 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-05 12:18:48,208 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-05 12:18:48,208 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-05 12:18:48,209 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-05 12:18:48,209 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-05 12:18:48,209 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-05 12:18:48,209 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-05 12:18:48,209 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-05 12:18:48,210 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-05 12:18:48,210 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-05 12:18:48,210 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-05 12:18:48,210 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-08-05 12:18:48,210 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-05 12:18:48,211 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-05 12:18:48,211 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-05 12:18:48,211 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-08-05 12:18:48,252 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 12:18:48,265 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 12:18:48,269 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 12:18:48,271 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 12:18:48,271 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 12:18:48,272 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/abstractInterpretation/regression/open/int/recursive-Collatz.bpl [2019-08-05 12:18:48,272 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/abstractInterpretation/regression/open/int/recursive-Collatz.bpl' [2019-08-05 12:18:48,303 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 12:18:48,305 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 12:18:48,306 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 12:18:48,306 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 12:18:48,306 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 12:18:48,324 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "recursive-Collatz.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:18:48" (1/1) ... [2019-08-05 12:18:48,333 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "recursive-Collatz.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:18:48" (1/1) ... [2019-08-05 12:18:48,340 WARN L165 Inliner]: Program contained no entry procedure! [2019-08-05 12:18:48,340 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2019-08-05 12:18:48,341 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2019-08-05 12:18:48,343 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 12:18:48,343 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 12:18:48,344 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 12:18:48,344 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 12:18:48,356 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "recursive-Collatz.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:18:48" (1/1) ... [2019-08-05 12:18:48,356 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "recursive-Collatz.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:18:48" (1/1) ... [2019-08-05 12:18:48,357 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "recursive-Collatz.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:18:48" (1/1) ... [2019-08-05 12:18:48,357 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "recursive-Collatz.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:18:48" (1/1) ... [2019-08-05 12:18:48,361 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "recursive-Collatz.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:18:48" (1/1) ... [2019-08-05 12:18:48,364 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "recursive-Collatz.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:18:48" (1/1) ... [2019-08-05 12:18:48,365 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "recursive-Collatz.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:18:48" (1/1) ... [2019-08-05 12:18:48,366 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 12:18:48,367 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 12:18:48,370 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 12:18:48,370 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 12:18:48,371 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "recursive-Collatz.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:18:48" (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 12:18:48,429 INFO L124 BoogieDeclarations]: Specification and implementation of procedure Collatz given in one single declaration [2019-08-05 12:18:48,429 INFO L130 BoogieDeclarations]: Found specification of procedure Collatz [2019-08-05 12:18:48,429 INFO L138 BoogieDeclarations]: Found implementation of procedure Collatz [2019-08-05 12:18:48,630 INFO L275 CfgBuilder]: Using library mode [2019-08-05 12:18:48,631 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-05 12:18:48,632 INFO L202 PluginConnector]: Adding new model recursive-Collatz.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 12:18:48 BoogieIcfgContainer [2019-08-05 12:18:48,632 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 12:18:48,633 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-08-05 12:18:48,633 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-08-05 12:18:48,634 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-08-05 12:18:48,635 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "recursive-Collatz.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 12:18:48" (1/1) ... [2019-08-05 12:18:48,667 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2019-08-05 12:18:49,110 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-08-05 12:18:49,130 INFO L272 AbstractInterpreter]: Visited 11 different actions 331 times. Never merged. Never widened. Performed 626 root evaluator evaluations with a maximum evaluation depth of 3. Performed 626 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 38 fixpoints after 2 different actions. Largest state had 2 variables. [2019-08-05 12:18:49,130 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-08-05 12:18:49,133 INFO L168 Benchmark]: Toolchain (without parser) took 827.25 ms. Allocated memory is still 141.6 MB. Free memory was 107.8 MB in the beginning and 81.3 MB in the end (delta: 26.5 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. [2019-08-05 12:18:49,135 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 ms. Allocated memory is still 141.6 MB. Free memory was 109.0 MB in the beginning and 108.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-08-05 12:18:49,136 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.08 ms. Allocated memory is still 141.6 MB. Free memory was 107.8 MB in the beginning and 105.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-08-05 12:18:49,137 INFO L168 Benchmark]: Boogie Preprocessor took 23.01 ms. Allocated memory is still 141.6 MB. Free memory was 105.9 MB in the beginning and 104.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. [2019-08-05 12:18:49,139 INFO L168 Benchmark]: RCFGBuilder took 265.49 ms. Allocated memory is still 141.6 MB. Free memory was 104.8 MB in the beginning and 96.2 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 7.1 GB. [2019-08-05 12:18:49,140 INFO L168 Benchmark]: Abstract Interpretation took 497.39 ms. Allocated memory is still 141.6 MB. Free memory was 96.0 MB in the beginning and 81.3 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 7.1 GB. [2019-08-05 12:18:49,147 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 0.20 ms. Allocated memory is still 141.6 MB. Free memory was 109.0 MB in the beginning and 108.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 37.08 ms. Allocated memory is still 141.6 MB. Free memory was 107.8 MB in the beginning and 105.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 23.01 ms. Allocated memory is still 141.6 MB. Free memory was 105.9 MB in the beginning and 104.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 265.49 ms. Allocated memory is still 141.6 MB. Free memory was 104.8 MB in the beginning and 96.2 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 497.39 ms. Allocated memory is still 141.6 MB. Free memory was 96.0 MB in the beginning and 81.3 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 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: [L14] COND FALSE !(x == 1) [L18] COND TRUE x % 2 == 0 [L19] CALL call res := Collatz(x / 2); [L14] COND TRUE x == 1 [L15] res := 1; [L19] RET call res := Collatz(x / 2); [L24] assert 2 / 2 == 0; RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...