java -ea -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_exp_cong.epf -i ../../../trunk/examples/programs/heapseparator/speedup-poc-dd-5-unlimited.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f57a05f [2019-01-07 19:06:07,592 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-07 19:06:07,594 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-07 19:06:07,612 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-07 19:06:07,612 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-07 19:06:07,614 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-07 19:06:07,616 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-07 19:06:07,619 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-07 19:06:07,620 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-07 19:06:07,623 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-07 19:06:07,625 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2019-01-07 19:06:07,669 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/array-bench/reach_32bit_array_compound_exp_cong.epf [2019-01-07 19:06:07,691 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-07 19:06:07,692 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-07 19:06:07,693 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2019-01-07 19:06:07,693 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2019-01-07 19:06:07,694 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-01-07 19:06:07,694 INFO L133 SettingsManager]: * User list type=DISABLED [2019-01-07 19:06:07,694 INFO L133 SettingsManager]: * Inline calls to unimplemented procedures=true [2019-01-07 19:06:07,694 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-01-07 19:06:07,695 INFO L133 SettingsManager]: * Explicit value domain=true [2019-01-07 19:06:07,695 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-01-07 19:06:07,696 INFO L133 SettingsManager]: * Octagon Domain=false [2019-01-07 19:06:07,696 INFO L133 SettingsManager]: * Abstract domain=ArrayDomain [2019-01-07 19:06:07,696 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-01-07 19:06:07,696 INFO L133 SettingsManager]: * Interval Domain=false [2019-01-07 19:06:07,697 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-07 19:06:07,697 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-07 19:06:07,697 INFO L133 SettingsManager]: * Use SBE=true [2019-01-07 19:06:07,699 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-07 19:06:07,700 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-07 19:06:07,700 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-07 19:06:07,700 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-07 19:06:07,700 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-07 19:06:07,700 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-07 19:06:07,701 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-07 19:06:07,701 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-07 19:06:07,701 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-07 19:06:07,701 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-07 19:06:07,702 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-07 19:06:07,702 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-07 19:06:07,702 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-07 19:06:07,702 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-07 19:06:07,702 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-07 19:06:07,703 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-07 19:06:07,703 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-07 19:06:07,704 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-07 19:06:07,704 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-01-07 19:06:07,704 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-07 19:06:07,704 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-07 19:06:07,704 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-01-07 19:06:07,705 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-01-07 19:06:07,757 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-07 19:06:07,772 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-07 19:06:07,778 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-07 19:06:07,780 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-01-07 19:06:07,781 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2019-01-07 19:06:07,782 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/heapseparator/speedup-poc-dd-5-unlimited.bpl [2019-01-07 19:06:07,782 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/heapseparator/speedup-poc-dd-5-unlimited.bpl' [2019-01-07 19:06:07,854 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-07 19:06:07,855 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-01-07 19:06:07,856 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-07 19:06:07,856 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-07 19:06:07,857 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-07 19:06:07,876 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "speedup-poc-dd-5-unlimited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.01 07:06:07" (1/1) ... [2019-01-07 19:06:07,891 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "speedup-poc-dd-5-unlimited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.01 07:06:07" (1/1) ... [2019-01-07 19:06:07,926 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-07 19:06:07,927 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-07 19:06:07,928 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-07 19:06:07,928 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-07 19:06:07,941 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "speedup-poc-dd-5-unlimited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.01 07:06:07" (1/1) ... [2019-01-07 19:06:07,942 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "speedup-poc-dd-5-unlimited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.01 07:06:07" (1/1) ... [2019-01-07 19:06:07,945 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "speedup-poc-dd-5-unlimited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.01 07:06:07" (1/1) ... [2019-01-07 19:06:07,945 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "speedup-poc-dd-5-unlimited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.01 07:06:07" (1/1) ... [2019-01-07 19:06:07,951 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "speedup-poc-dd-5-unlimited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.01 07:06:07" (1/1) ... [2019-01-07 19:06:07,959 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "speedup-poc-dd-5-unlimited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.01 07:06:07" (1/1) ... [2019-01-07 19:06:07,960 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "speedup-poc-dd-5-unlimited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.01 07:06:07" (1/1) ... [2019-01-07 19:06:07,962 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-07 19:06:07,963 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-07 19:06:07,963 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-07 19:06:07,963 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-07 19:06:07,964 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "speedup-poc-dd-5-unlimited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.01 07:06:07" (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 [2019-01-07 19:06:08,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-07 19:06:08,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-07 19:06:08,600 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-07 19:06:08,601 INFO L286 CfgBuilder]: Removed 13 assue(true) statements. [2019-01-07 19:06:08,602 INFO L202 PluginConnector]: Adding new model speedup-poc-dd-5-unlimited.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.01 07:06:08 BoogieIcfgContainer [2019-01-07 19:06:08,602 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-07 19:06:08,603 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-01-07 19:06:08,603 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-01-07 19:06:08,604 INFO L276 PluginConnector]: Abstract Interpretation initialized [2019-01-07 19:06:08,605 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "speedup-poc-dd-5-unlimited.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.01 07:06:08" (1/1) ... [2019-01-07 19:06:08,660 INFO L101 FixpointEngine]: Starting fixpoint engine with domain ArrayDomain (maxUnwinding=3, maxParallelStates=2) [2019-01-07 19:06:15,524 WARN L212 ngHoareTripleChecker]: Soundness check inconclusive for the following hoare triple [2019-01-07 19:06:15,525 WARN L217 ngHoareTripleChecker]: Expected: VALID Actual: UNKNOWN [2019-01-07 19:06:15,525 WARN L219 ngHoareTripleChecker]: Solver was "Z3" in version "4.8.3" [2019-01-07 19:06:15,526 WARN L223 ngHoareTripleChecker]: -- [2019-01-07 19:06:15,526 WARN L224 ngHoareTripleChecker]: Pre: {2147483617#(forall ((v_idx_289 Int) (v_idx_290 Int) (v_idx_291 Int) (v_idx_294 Int) (v_idx_292 Int) (v_idx_293 Int) (v_idx_288 Int)) (exists ((v_v_46_1 Int) (v_v_52_1 Int) (v_b_29_1 Int) (v_b_28_1 Int) (v_v_54_1 Int) (v_v_2_1 Int) (v_v_123_1 Int) (v_v_4_1 Int)) (and (or (<= v_b_28_1 v_idx_292) (= v_v_52_1 (select |c_#valid| v_idx_292))) (= (select |c_ULTIMATE.start_malloc_old_#valid| v_idx_290) v_v_46_1) (= v_v_2_1 (select |c_old(#valid)| v_idx_291)) (or (< v_idx_293 v_b_28_1) (= 1 (select |c_#valid| v_idx_293)) (<= v_b_29_1 v_idx_293)) (= v_v_123_1 (select |c_#memory_int| v_idx_289)) (or (< v_idx_294 v_b_29_1) (= v_v_54_1 (select |c_#valid| v_idx_294))) (= (select |c_old(#memory_int)| v_idx_288) v_v_4_1))))} [2019-01-07 19:06:15,530 WARN L228 ngHoareTripleChecker]: Action: assume !(#memory_int[main_p2] <= 0); [2019-01-07 19:06:15,531 WARN L184 hOps$ForEachOp$OfRef]: ActionStr: (not (<= (select |c_#memory_int| c_ULTIMATE.start_main_p2) 0)) [2019-01-07 19:06:15,531 WARN L230 ngHoareTripleChecker]: Post: {2147483616#(forall ((v_idx_300 Int) (v_idx_301 Int) (v_idx_295 Int) (v_idx_298 Int) (v_idx_299 Int) (v_idx_296 Int) (v_idx_297 Int)) (exists ((v_v_46_1 Int) (v_v_398_1 Int) (v_v_52_1 Int) (v_b_29_1 Int) (v_b_28_1 Int) (v_v_54_1 Int) (v_v_2_1 Int) (v_v_4_1 Int)) (and (or (= 1 (select |c_#valid| v_idx_300)) (< v_idx_300 v_b_28_1) (<= v_b_29_1 v_idx_300)) (= v_v_4_1 (select |c_old(#memory_int)| v_idx_295)) (= (select |c_old(#valid)| v_idx_298) v_v_2_1) (or (< v_idx_301 v_b_29_1) (= v_v_54_1 (select |c_#valid| v_idx_301))) (or (<= v_b_28_1 v_idx_299) (= v_v_52_1 (select |c_#valid| v_idx_299))) (= v_v_398_1 (select |c_#memory_int| v_idx_296)) (= (select |c_ULTIMATE.start_malloc_old_#valid| v_idx_297) v_v_46_1))))} [2019-01-07 19:06:15,531 WARN L263 ngHoareTripleChecker]: unsat core / model generation is disabled, enable it to get more details [2019-01-07 19:06:15,950 WARN L268 ngHoareTripleChecker]: -- [2019-01-07 19:06:15,950 WARN L269 ngHoareTripleChecker]: Simplified triple [2019-01-07 19:06:16,246 WARN L270 ngHoareTripleChecker]: Pre: {2147483617#true} [2019-01-07 19:06:16,246 WARN L274 ngHoareTripleChecker]: Action: assume !(#memory_int[main_p2] <= 0); [2019-01-07 19:06:16,247 WARN L184 hOps$ForEachOp$OfRef]: ActionStr: (not (<= (select |c_#memory_int| c_ULTIMATE.start_main_p2) 0)) [2019-01-07 19:06:16,443 WARN L276 ngHoareTripleChecker]: Post: {2147483616#true} [2019-01-07 19:06:16,847 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-01-07 19:06:16,868 INFO L272 AbstractInterpreter]: Visited 17 different actions 24 times. Merged at 1 different actions 1 times. Never widened. Found 11 fixpoints after 7 different actions. Largest state had 0 variables. [2019-01-07 19:06:16,870 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-01-07 19:06:16,872 INFO L168 Benchmark]: Toolchain (without parser) took 9017.79 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: 200.9 MB). Peak memory consumption was 200.9 MB. Max. memory is 7.1 GB. [2019-01-07 19:06:16,875 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2019-01-07 19:06:16,876 INFO L168 Benchmark]: Boogie Procedure Inliner took 70.88 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2019-01-07 19:06:16,877 INFO L168 Benchmark]: Boogie Preprocessor took 34.85 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2019-01-07 19:06:16,877 INFO L168 Benchmark]: RCFGBuilder took 639.69 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 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. [2019-01-07 19:06:16,879 INFO L168 Benchmark]: Abstract Interpretation took 8267.26 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 169.2 MB). Peak memory consumption was 169.2 MB. Max. memory is 7.1 GB. [2019-01-07 19:06:16,887 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - GenericResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 70.88 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 34.85 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 639.69 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 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. * Abstract Interpretation took 8267.26 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 169.2 MB). Peak memory consumption was 169.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 43]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L51-L52] modifies #valid; [L51-L53] ensures old(#valid)[ptr] == 0; [L51-L54] ensures #valid == old(#valid)[ptr := 1]; [L51-L52] modifies #valid; [L51-L53] ensures old(#valid)[ptr] == 0; [L51-L54] ensures #valid == old(#valid)[ptr := 1]; [L51-L52] modifies #valid; [L51-L53] ensures old(#valid)[ptr] == 0; [L51-L54] ensures #valid == old(#valid)[ptr := 1]; [L51-L52] modifies #valid; [L51-L53] ensures old(#valid)[ptr] == 0; [L51-L54] ensures #valid == old(#valid)[ptr := 1]; [L51-L52] modifies #valid; [L51-L53] ensures old(#valid)[ptr] == 0; [L51-L54] ensures #valid == old(#valid)[ptr := 1]; [L23] #memory_int[p1] := 0; [L24] #memory_int[p2] := 0; [L25] #memory_int[p3] := 0; [L26] #memory_int[p4] := 0; [L27] #memory_int[p5] := 0; [L43] assert #memory_int[p1] >= 0; - UnprovableResult [Line: 44]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L51-L52] modifies #valid; [L51-L53] ensures old(#valid)[ptr] == 0; [L51-L54] ensures #valid == old(#valid)[ptr := 1]; [L51-L52] modifies #valid; [L51-L53] ensures old(#valid)[ptr] == 0; [L51-L54] ensures #valid == old(#valid)[ptr := 1]; [L51-L52] modifies #valid; [L51-L53] ensures old(#valid)[ptr] == 0; [L51-L54] ensures #valid == old(#valid)[ptr := 1]; [L51-L52] modifies #valid; [L51-L53] ensures old(#valid)[ptr] == 0; [L51-L54] ensures #valid == old(#valid)[ptr := 1]; [L51-L52] modifies #valid; [L51-L53] ensures old(#valid)[ptr] == 0; [L51-L54] ensures #valid == old(#valid)[ptr := 1]; [L23] #memory_int[p1] := 0; [L24] #memory_int[p2] := 0; [L25] #memory_int[p3] := 0; [L26] #memory_int[p4] := 0; [L27] #memory_int[p5] := 0; [L43] assert #memory_int[p1] >= 0; [L44] assert #memory_int[p2] <= 0; - UnprovableResult [Line: 45]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L51-L52] modifies #valid; [L51-L53] ensures old(#valid)[ptr] == 0; [L51-L54] ensures #valid == old(#valid)[ptr := 1]; [L51-L52] modifies #valid; [L51-L53] ensures old(#valid)[ptr] == 0; [L51-L54] ensures #valid == old(#valid)[ptr := 1]; [L51-L52] modifies #valid; [L51-L53] ensures old(#valid)[ptr] == 0; [L51-L54] ensures #valid == old(#valid)[ptr := 1]; [L51-L52] modifies #valid; [L51-L53] ensures old(#valid)[ptr] == 0; [L51-L54] ensures #valid == old(#valid)[ptr := 1]; [L51-L52] modifies #valid; [L51-L53] ensures old(#valid)[ptr] == 0; [L51-L54] ensures #valid == old(#valid)[ptr := 1]; [L23] #memory_int[p1] := 0; [L24] #memory_int[p2] := 0; [L25] #memory_int[p3] := 0; [L26] #memory_int[p4] := 0; [L27] #memory_int[p5] := 0; [L43] assert #memory_int[p1] >= 0; [L44] assert #memory_int[p2] <= 0; [L45] assert #memory_int[p3] >= 0; - UnprovableResult [Line: 46]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L51-L52] modifies #valid; [L51-L53] ensures old(#valid)[ptr] == 0; [L51-L54] ensures #valid == old(#valid)[ptr := 1]; [L51-L52] modifies #valid; [L51-L53] ensures old(#valid)[ptr] == 0; [L51-L54] ensures #valid == old(#valid)[ptr := 1]; [L51-L52] modifies #valid; [L51-L53] ensures old(#valid)[ptr] == 0; [L51-L54] ensures #valid == old(#valid)[ptr := 1]; [L51-L52] modifies #valid; [L51-L53] ensures old(#valid)[ptr] == 0; [L51-L54] ensures #valid == old(#valid)[ptr := 1]; [L51-L52] modifies #valid; [L51-L53] ensures old(#valid)[ptr] == 0; [L51-L54] ensures #valid == old(#valid)[ptr := 1]; [L23] #memory_int[p1] := 0; [L24] #memory_int[p2] := 0; [L25] #memory_int[p3] := 0; [L26] #memory_int[p4] := 0; [L27] #memory_int[p5] := 0; [L43] assert #memory_int[p1] >= 0; [L44] assert #memory_int[p2] <= 0; [L45] assert #memory_int[p3] >= 0; [L46] assert #memory_int[p4] <= 0; - UnprovableResult [Line: 47]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L51-L52] modifies #valid; [L51-L53] ensures old(#valid)[ptr] == 0; [L51-L54] ensures #valid == old(#valid)[ptr := 1]; [L51-L52] modifies #valid; [L51-L53] ensures old(#valid)[ptr] == 0; [L51-L54] ensures #valid == old(#valid)[ptr := 1]; [L51-L52] modifies #valid; [L51-L53] ensures old(#valid)[ptr] == 0; [L51-L54] ensures #valid == old(#valid)[ptr := 1]; [L51-L52] modifies #valid; [L51-L53] ensures old(#valid)[ptr] == 0; [L51-L54] ensures #valid == old(#valid)[ptr := 1]; [L51-L52] modifies #valid; [L51-L53] ensures old(#valid)[ptr] == 0; [L51-L54] ensures #valid == old(#valid)[ptr := 1]; [L23] #memory_int[p1] := 0; [L24] #memory_int[p2] := 0; [L25] #memory_int[p3] := 0; [L26] #memory_int[p4] := 0; [L27] #memory_int[p5] := 0; [L43] assert #memory_int[p1] >= 0; [L44] assert #memory_int[p2] <= 0; [L45] assert #memory_int[p3] >= 0; [L46] assert #memory_int[p4] <= 0; [L47] assert #memory_int[p5] >= 0; RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...