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/20170304-DifficultPathPrograms/underapprox2.i_3.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-04 22:00:35,477 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-04 22:00:35,479 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-04 22:00:35,491 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-08-04 22:00:35,522 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-04 22:00:35,523 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-04 22:00:35,524 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-04 22:00:35,525 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-04 22:00:35,526 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-04 22:00:35,526 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-04 22:00:35,527 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-04 22:00:35,528 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... 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[2019-08-04 22:00:35,531 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 [2019-08-04 22:00:35,545 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-04 22:00:35,545 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-04 22:00:35,546 INFO L136 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2019-08-04 22:00:35,546 INFO L138 SettingsManager]: * Show backtranslation warnings=false [2019-08-04 22:00:35,546 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-08-04 22:00:35,547 INFO L138 SettingsManager]: * User list type=DISABLED [2019-08-04 22:00:35,547 INFO L138 SettingsManager]: * Inline calls to unimplemented procedures=true [2019-08-04 22:00:35,547 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-08-04 22:00:35,547 INFO L138 SettingsManager]: * Explicit value domain=true [2019-08-04 22:00:35,548 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-08-04 22:00:35,548 INFO L138 SettingsManager]: * Octagon Domain=false [2019-08-04 22:00:35,548 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-08-04 22:00:35,548 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-08-04 22:00:35,548 INFO L138 SettingsManager]: * Interval Domain=false [2019-08-04 22:00:35,549 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-04 22:00:35,549 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-04 22:00:35,550 INFO L138 SettingsManager]: * Use SBE=true [2019-08-04 22:00:35,550 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-04 22:00:35,550 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-04 22:00:35,550 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-04 22:00:35,550 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-04 22:00:35,551 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-04 22:00:35,551 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-04 22:00:35,551 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-04 22:00:35,551 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-04 22:00:35,551 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-04 22:00:35,552 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-04 22:00:35,552 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-04 22:00:35,552 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-04 22:00:35,552 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-04 22:00:35,552 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-04 22:00:35,553 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-04 22:00:35,553 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-04 22:00:35,553 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-04 22:00:35,553 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-04 22:00:35,554 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-08-04 22:00:35,554 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-04 22:00:35,554 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-04 22:00:35,554 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-04 22:00:35,554 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-08-04 22:00:35,613 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-04 22:00:35,628 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-04 22:00:35,632 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-04 22:00:35,634 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-04 22:00:35,634 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-04 22:00:35,635 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/underapprox2.i_3.bpl [2019-08-04 22:00:35,635 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/underapprox2.i_3.bpl' [2019-08-04 22:00:35,675 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-04 22:00:35,677 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-04 22:00:35,678 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-04 22:00:35,678 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-04 22:00:35,678 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-04 22:00:35,698 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "underapprox2.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 10:00:35" (1/1) ... [2019-08-04 22:00:35,708 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "underapprox2.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 10:00:35" (1/1) ... [2019-08-04 22:00:35,719 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-04 22:00:35,720 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-04 22:00:35,720 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-04 22:00:35,720 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-04 22:00:35,731 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "underapprox2.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 10:00:35" (1/1) ... [2019-08-04 22:00:35,732 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "underapprox2.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 10:00:35" (1/1) ... [2019-08-04 22:00:35,733 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "underapprox2.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 10:00:35" (1/1) ... [2019-08-04 22:00:35,733 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "underapprox2.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 10:00:35" (1/1) ... [2019-08-04 22:00:35,741 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "underapprox2.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 10:00:35" (1/1) ... [2019-08-04 22:00:35,743 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "underapprox2.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 10:00:35" (1/1) ... [2019-08-04 22:00:35,744 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "underapprox2.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 10:00:35" (1/1) ... [2019-08-04 22:00:35,745 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-04 22:00:35,746 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-04 22:00:35,746 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-04 22:00:35,746 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-04 22:00:35,747 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "underapprox2.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 10:00:35" (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 [2019-08-04 22:00:35,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-04 22:00:35,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-04 22:00:36,044 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-04 22:00:36,045 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-08-04 22:00:36,046 INFO L202 PluginConnector]: Adding new model underapprox2.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.08 10:00:36 BoogieIcfgContainer [2019-08-04 22:00:36,046 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-04 22:00:36,047 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-08-04 22:00:36,047 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-08-04 22:00:36,047 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-08-04 22:00:36,048 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "underapprox2.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.08 10:00:36" (1/1) ... [2019-08-04 22:00:36,073 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2019-08-04 22:00:36,195 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-08-04 22:00:36,215 INFO L272 AbstractInterpreter]: Visited 5 different actions 11 times. Merged at 1 different actions 3 times. Never widened. Performed 87 root evaluator evaluations with a maximum evaluation depth of 5. Performed 87 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 2 fixpoints after 2 different actions. Largest state had 0 variables. [2019-08-04 22:00:36,215 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-08-04 22:00:36,218 INFO L168 Benchmark]: Toolchain (without parser) took 540.05 ms. Allocated memory is still 135.3 MB. Free memory was 109.3 MB in the beginning and 90.1 MB in the end (delta: 19.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 7.1 GB. [2019-08-04 22:00:36,219 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 135.3 MB. Free memory was 110.5 MB in the beginning and 110.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-08-04 22:00:36,221 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.22 ms. Allocated memory is still 135.3 MB. Free memory was 109.1 MB in the beginning and 107.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 7.1 GB. [2019-08-04 22:00:36,222 INFO L168 Benchmark]: Boogie Preprocessor took 25.79 ms. Allocated memory is still 135.3 MB. Free memory was 107.5 MB in the beginning and 106.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. [2019-08-04 22:00:36,224 INFO L168 Benchmark]: RCFGBuilder took 300.33 ms. Allocated memory is still 135.3 MB. Free memory was 106.3 MB in the beginning and 97.3 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. [2019-08-04 22:00:36,225 INFO L168 Benchmark]: Abstract Interpretation took 168.40 ms. Allocated memory is still 135.3 MB. Free memory was 97.3 MB in the beginning and 90.1 MB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 7.1 GB. [2019-08-04 22:00:36,230 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 0.21 ms. Allocated memory is still 135.3 MB. Free memory was 110.5 MB in the beginning and 110.3 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 41.22 ms. Allocated memory is still 135.3 MB. Free memory was 109.1 MB in the beginning and 107.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.79 ms. Allocated memory is still 135.3 MB. Free memory was 107.5 MB in the beginning and 106.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 300.33 ms. Allocated memory is still 135.3 MB. Free memory was 106.3 MB in the beginning and 97.3 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 168.40 ms. Allocated memory is still 135.3 MB. Free memory was 97.3 MB in the beginning and 90.1 MB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 36]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L10] havoc main_#res; [L11] havoc main_#t~post0, main_~x~4, main_~y~4; [L12] main_~x~4 := 0; [L13] main_~y~4 := 1; [L29] assume !!(main_~x~4 % 4294967296 < 6); [L30] main_#t~post0 := main_~x~4; [L31] main_~x~4 := main_#t~post0 + 1; [L32] havoc main_#t~post0; [L33] main_~y~4 := main_~y~4 * 2; [L29] assume !!(main_~x~4 % 4294967296 < 6); [L30] main_#t~post0 := main_~x~4; [L31] main_~x~4 := main_#t~post0 + 1; [L32] havoc main_#t~post0; [L33] main_~y~4 := main_~y~4 * 2; [L21] assume !(main_~x~4 % 4294967296 < 6); [L22] __VERIFIER_assert_#in~cond := (if main_~x~4 % 4294967296 != 6 then 1 else 0); [L23] havoc __VERIFIER_assert_~cond; [L24] __VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; [L25] assume __VERIFIER_assert_~cond == 0; [L26] assume !false; [L36] assert false; RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...