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/heapseparator/speedup-poc03-18.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 12:13:44,597 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 12:13:44,599 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 12:13:44,611 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-08-05 12:13:44,641 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 12:13:44,642 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 12:13:44,647 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 12:13:44,648 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 12:13:44,649 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 12:13:44,649 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 12:13:44,650 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 12:13:44,650 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... 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[2019-08-05 12:13:44,657 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 12:13:44,680 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-05 12:13:44,680 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-05 12:13:44,683 INFO L136 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2019-08-05 12:13:44,684 INFO L138 SettingsManager]: * Show backtranslation warnings=false [2019-08-05 12:13:44,684 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-08-05 12:13:44,684 INFO L138 SettingsManager]: * User list type=DISABLED [2019-08-05 12:13:44,684 INFO L138 SettingsManager]: * Inline calls to unimplemented procedures=true [2019-08-05 12:13:44,685 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-08-05 12:13:44,685 INFO L138 SettingsManager]: * Explicit value domain=true [2019-08-05 12:13:44,685 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-08-05 12:13:44,685 INFO L138 SettingsManager]: * Octagon Domain=false [2019-08-05 12:13:44,685 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-08-05 12:13:44,686 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-08-05 12:13:44,686 INFO L138 SettingsManager]: * Interval Domain=false [2019-08-05 12:13:44,688 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-05 12:13:44,688 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-05 12:13:44,689 INFO L138 SettingsManager]: * Use SBE=true [2019-08-05 12:13:44,689 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-05 12:13:44,689 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-05 12:13:44,690 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-05 12:13:44,690 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-05 12:13:44,690 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-05 12:13:44,690 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-05 12:13:44,691 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-05 12:13:44,691 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-05 12:13:44,691 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-05 12:13:44,691 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-05 12:13:44,691 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-05 12:13:44,692 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-05 12:13:44,692 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-05 12:13:44,692 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-05 12:13:44,693 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-05 12:13:44,693 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-05 12:13:44,694 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-05 12:13:44,694 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-05 12:13:44,694 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-08-05 12:13:44,695 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-05 12:13:44,695 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-05 12:13:44,695 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-05 12:13:44,695 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-08-05 12:13:44,752 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 12:13:44,768 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 12:13:44,772 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 12:13:44,774 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 12:13:44,774 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 12:13:44,775 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/heapseparator/speedup-poc03-18.bpl [2019-08-05 12:13:44,775 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/heapseparator/speedup-poc03-18.bpl' [2019-08-05 12:13:44,826 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 12:13:44,828 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 12:13:44,829 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 12:13:44,829 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 12:13:44,829 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 12:13:44,848 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "speedup-poc03-18.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:13:44" (1/1) ... [2019-08-05 12:13:44,861 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "speedup-poc03-18.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:13:44" (1/1) ... [2019-08-05 12:13:44,896 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 12:13:44,897 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 12:13:44,897 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 12:13:44,897 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 12:13:44,908 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "speedup-poc03-18.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:13:44" (1/1) ... [2019-08-05 12:13:44,909 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "speedup-poc03-18.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:13:44" (1/1) ... [2019-08-05 12:13:44,913 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "speedup-poc03-18.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:13:44" (1/1) ... [2019-08-05 12:13:44,913 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "speedup-poc03-18.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:13:44" (1/1) ... [2019-08-05 12:13:44,919 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "speedup-poc03-18.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:13:44" (1/1) ... [2019-08-05 12:13:44,928 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "speedup-poc03-18.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:13:44" (1/1) ... [2019-08-05 12:13:44,933 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "speedup-poc03-18.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:13:44" (1/1) ... [2019-08-05 12:13:44,938 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 12:13:44,939 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 12:13:44,939 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 12:13:44,942 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 12:13:44,943 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "speedup-poc03-18.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:13:44" (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 12:13:45,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-05 12:13:45,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-05 12:13:45,744 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-05 12:13:45,744 INFO L283 CfgBuilder]: Removed 39 assume(true) statements. [2019-08-05 12:13:45,746 INFO L202 PluginConnector]: Adding new model speedup-poc03-18.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 12:13:45 BoogieIcfgContainer [2019-08-05 12:13:45,746 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 12:13:45,747 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-08-05 12:13:45,747 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-08-05 12:13:45,747 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-08-05 12:13:45,748 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "speedup-poc03-18.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 12:13:45" (1/1) ... [2019-08-05 12:13:45,781 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2019-08-05 12:13:45,897 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-08-05 12:13:45,992 INFO L272 AbstractInterpreter]: Visited 56 different actions 56 times. Never merged. Never widened. Performed 288 root evaluator evaluations with a maximum evaluation depth of 2. Performed 288 inverse root evaluator evaluations with a maximum inverse evaluation depth of 2. Found 18 fixpoints after 18 different actions. Largest state had 0 variables. [2019-08-05 12:13:45,993 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-08-05 12:13:45,996 INFO L168 Benchmark]: Toolchain (without parser) took 1166.39 ms. Allocated memory is still 141.0 MB. Free memory was 106.8 MB in the beginning and 70.6 MB in the end (delta: 36.3 MB). Peak memory consumption was 36.3 MB. Max. memory is 7.1 GB. [2019-08-05 12:13:45,997 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.22 ms. Allocated memory is still 141.0 MB. Free memory was 108.3 MB in the beginning and 108.1 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-08-05 12:13:45,998 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.20 ms. Allocated memory is still 141.0 MB. Free memory was 106.6 MB in the beginning and 103.9 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. [2019-08-05 12:13:46,000 INFO L168 Benchmark]: Boogie Preprocessor took 41.67 ms. Allocated memory is still 141.0 MB. Free memory was 103.9 MB in the beginning and 102.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 7.1 GB. [2019-08-05 12:13:46,001 INFO L168 Benchmark]: RCFGBuilder took 807.19 ms. Allocated memory is still 141.0 MB. Free memory was 102.3 MB in the beginning and 80.9 MB in the end (delta: 21.4 MB). Peak memory consumption was 21.4 MB. Max. memory is 7.1 GB. [2019-08-05 12:13:46,002 INFO L168 Benchmark]: Abstract Interpretation took 246.08 ms. Allocated memory is still 141.0 MB. Free memory was 80.7 MB in the beginning and 70.6 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2019-08-05 12:13:46,008 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 0.22 ms. Allocated memory is still 141.0 MB. Free memory was 108.3 MB in the beginning and 108.1 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 67.20 ms. Allocated memory is still 141.0 MB. Free memory was 106.6 MB in the beginning and 103.9 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 41.67 ms. Allocated memory is still 141.0 MB. Free memory was 103.9 MB in the beginning and 102.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 807.19 ms. Allocated memory is still 141.0 MB. Free memory was 102.3 MB in the beginning and 80.9 MB in the end (delta: 21.4 MB). Peak memory consumption was 21.4 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 246.08 ms. Allocated memory is still 141.0 MB. Free memory was 80.7 MB in the beginning and 70.6 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 97]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L39] #memory_int[p1] := 0; [L40] #memory_int[p2] := 0; [L41] #memory_int[p3] := 0; [L42] #memory_int[p4] := 0; [L43] #memory_int[p5] := 0; [L44] #memory_int[p6] := 0; [L45] #memory_int[p7] := 0; [L46] #memory_int[p8] := 0; [L47] #memory_int[p9] := 0; [L48] #memory_int[p10] := 0; [L49] #memory_int[p11] := 0; [L50] #memory_int[p12] := 0; [L51] #memory_int[p13] := 0; [L52] #memory_int[p14] := 0; [L53] #memory_int[p15] := 0; [L54] #memory_int[p16] := 0; [L55] #memory_int[p17] := 0; [L56] #memory_int[p18] := 0; [L97] assert #memory_int[p1] >= 0; - UnprovableResult [Line: 98]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L39] #memory_int[p1] := 0; [L40] #memory_int[p2] := 0; [L41] #memory_int[p3] := 0; [L42] #memory_int[p4] := 0; [L43] #memory_int[p5] := 0; [L44] #memory_int[p6] := 0; [L45] #memory_int[p7] := 0; [L46] #memory_int[p8] := 0; [L47] #memory_int[p9] := 0; [L48] #memory_int[p10] := 0; [L49] #memory_int[p11] := 0; [L50] #memory_int[p12] := 0; [L51] #memory_int[p13] := 0; [L52] #memory_int[p14] := 0; [L53] #memory_int[p15] := 0; [L54] #memory_int[p16] := 0; [L55] #memory_int[p17] := 0; [L56] #memory_int[p18] := 0; [L97] assert #memory_int[p1] >= 0; [L98] assert #memory_int[p2] <= 0; - UnprovableResult [Line: 99]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L39] #memory_int[p1] := 0; [L40] #memory_int[p2] := 0; [L41] #memory_int[p3] := 0; [L42] #memory_int[p4] := 0; [L43] #memory_int[p5] := 0; [L44] #memory_int[p6] := 0; [L45] #memory_int[p7] := 0; [L46] #memory_int[p8] := 0; [L47] #memory_int[p9] := 0; [L48] #memory_int[p10] := 0; [L49] #memory_int[p11] := 0; [L50] #memory_int[p12] := 0; [L51] #memory_int[p13] := 0; [L52] #memory_int[p14] := 0; [L53] #memory_int[p15] := 0; [L54] #memory_int[p16] := 0; [L55] #memory_int[p17] := 0; [L56] #memory_int[p18] := 0; [L97] assert #memory_int[p1] >= 0; [L98] assert #memory_int[p2] <= 0; [L99] assert #memory_int[p3] >= 0; - UnprovableResult [Line: 100]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L39] #memory_int[p1] := 0; [L40] #memory_int[p2] := 0; [L41] #memory_int[p3] := 0; [L42] #memory_int[p4] := 0; [L43] #memory_int[p5] := 0; [L44] #memory_int[p6] := 0; [L45] #memory_int[p7] := 0; [L46] #memory_int[p8] := 0; [L47] #memory_int[p9] := 0; [L48] #memory_int[p10] := 0; [L49] #memory_int[p11] := 0; [L50] #memory_int[p12] := 0; [L51] #memory_int[p13] := 0; [L52] #memory_int[p14] := 0; [L53] #memory_int[p15] := 0; [L54] #memory_int[p16] := 0; [L55] #memory_int[p17] := 0; [L56] #memory_int[p18] := 0; [L97] assert #memory_int[p1] >= 0; [L98] assert #memory_int[p2] <= 0; [L99] assert #memory_int[p3] >= 0; [L100] assert #memory_int[p4] <= 0; - UnprovableResult [Line: 101]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L39] #memory_int[p1] := 0; [L40] #memory_int[p2] := 0; [L41] #memory_int[p3] := 0; [L42] #memory_int[p4] := 0; [L43] #memory_int[p5] := 0; [L44] #memory_int[p6] := 0; [L45] #memory_int[p7] := 0; [L46] #memory_int[p8] := 0; [L47] #memory_int[p9] := 0; [L48] #memory_int[p10] := 0; [L49] #memory_int[p11] := 0; [L50] #memory_int[p12] := 0; [L51] #memory_int[p13] := 0; [L52] #memory_int[p14] := 0; [L53] #memory_int[p15] := 0; [L54] #memory_int[p16] := 0; [L55] #memory_int[p17] := 0; [L56] #memory_int[p18] := 0; [L97] assert #memory_int[p1] >= 0; [L98] assert #memory_int[p2] <= 0; [L99] assert #memory_int[p3] >= 0; [L100] assert #memory_int[p4] <= 0; [L101] assert #memory_int[p5] >= 0; - UnprovableResult [Line: 102]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L39] #memory_int[p1] := 0; [L40] #memory_int[p2] := 0; [L41] #memory_int[p3] := 0; [L42] #memory_int[p4] := 0; [L43] #memory_int[p5] := 0; [L44] #memory_int[p6] := 0; [L45] #memory_int[p7] := 0; [L46] #memory_int[p8] := 0; [L47] #memory_int[p9] := 0; [L48] #memory_int[p10] := 0; [L49] #memory_int[p11] := 0; [L50] #memory_int[p12] := 0; [L51] #memory_int[p13] := 0; [L52] #memory_int[p14] := 0; [L53] #memory_int[p15] := 0; [L54] #memory_int[p16] := 0; [L55] #memory_int[p17] := 0; [L56] #memory_int[p18] := 0; [L97] assert #memory_int[p1] >= 0; [L98] assert #memory_int[p2] <= 0; [L99] assert #memory_int[p3] >= 0; [L100] assert #memory_int[p4] <= 0; [L101] assert #memory_int[p5] >= 0; [L102] assert #memory_int[p6] <= 0; - UnprovableResult [Line: 103]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L39] #memory_int[p1] := 0; [L40] #memory_int[p2] := 0; [L41] #memory_int[p3] := 0; [L42] #memory_int[p4] := 0; [L43] #memory_int[p5] := 0; [L44] #memory_int[p6] := 0; [L45] #memory_int[p7] := 0; [L46] #memory_int[p8] := 0; [L47] #memory_int[p9] := 0; [L48] #memory_int[p10] := 0; [L49] #memory_int[p11] := 0; [L50] #memory_int[p12] := 0; [L51] #memory_int[p13] := 0; [L52] #memory_int[p14] := 0; [L53] #memory_int[p15] := 0; [L54] #memory_int[p16] := 0; [L55] #memory_int[p17] := 0; [L56] #memory_int[p18] := 0; [L97] assert #memory_int[p1] >= 0; [L98] assert #memory_int[p2] <= 0; [L99] assert #memory_int[p3] >= 0; [L100] assert #memory_int[p4] <= 0; [L101] assert #memory_int[p5] >= 0; [L102] assert #memory_int[p6] <= 0; [L103] assert #memory_int[p7] >= 0; - UnprovableResult [Line: 104]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L39] #memory_int[p1] := 0; [L40] #memory_int[p2] := 0; [L41] #memory_int[p3] := 0; [L42] #memory_int[p4] := 0; [L43] #memory_int[p5] := 0; [L44] #memory_int[p6] := 0; [L45] #memory_int[p7] := 0; [L46] #memory_int[p8] := 0; [L47] #memory_int[p9] := 0; [L48] #memory_int[p10] := 0; [L49] #memory_int[p11] := 0; [L50] #memory_int[p12] := 0; [L51] #memory_int[p13] := 0; [L52] #memory_int[p14] := 0; [L53] #memory_int[p15] := 0; [L54] #memory_int[p16] := 0; [L55] #memory_int[p17] := 0; [L56] #memory_int[p18] := 0; [L97] assert #memory_int[p1] >= 0; [L98] assert #memory_int[p2] <= 0; [L99] assert #memory_int[p3] >= 0; [L100] assert #memory_int[p4] <= 0; [L101] assert #memory_int[p5] >= 0; [L102] assert #memory_int[p6] <= 0; [L103] assert #memory_int[p7] >= 0; [L104] assert #memory_int[p8] <= 0; - UnprovableResult [Line: 105]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L39] #memory_int[p1] := 0; [L40] #memory_int[p2] := 0; [L41] #memory_int[p3] := 0; [L42] #memory_int[p4] := 0; [L43] #memory_int[p5] := 0; [L44] #memory_int[p6] := 0; [L45] #memory_int[p7] := 0; [L46] #memory_int[p8] := 0; [L47] #memory_int[p9] := 0; [L48] #memory_int[p10] := 0; [L49] #memory_int[p11] := 0; [L50] #memory_int[p12] := 0; [L51] #memory_int[p13] := 0; [L52] #memory_int[p14] := 0; [L53] #memory_int[p15] := 0; [L54] #memory_int[p16] := 0; [L55] #memory_int[p17] := 0; [L56] #memory_int[p18] := 0; [L97] assert #memory_int[p1] >= 0; [L98] assert #memory_int[p2] <= 0; [L99] assert #memory_int[p3] >= 0; [L100] assert #memory_int[p4] <= 0; [L101] assert #memory_int[p5] >= 0; [L102] assert #memory_int[p6] <= 0; [L103] assert #memory_int[p7] >= 0; [L104] assert #memory_int[p8] <= 0; [L105] assert #memory_int[p9] >= 0; - UnprovableResult [Line: 106]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L39] #memory_int[p1] := 0; [L40] #memory_int[p2] := 0; [L41] #memory_int[p3] := 0; [L42] #memory_int[p4] := 0; [L43] #memory_int[p5] := 0; [L44] #memory_int[p6] := 0; [L45] #memory_int[p7] := 0; [L46] #memory_int[p8] := 0; [L47] #memory_int[p9] := 0; [L48] #memory_int[p10] := 0; [L49] #memory_int[p11] := 0; [L50] #memory_int[p12] := 0; [L51] #memory_int[p13] := 0; [L52] #memory_int[p14] := 0; [L53] #memory_int[p15] := 0; [L54] #memory_int[p16] := 0; [L55] #memory_int[p17] := 0; [L56] #memory_int[p18] := 0; [L97] assert #memory_int[p1] >= 0; [L98] assert #memory_int[p2] <= 0; [L99] assert #memory_int[p3] >= 0; [L100] assert #memory_int[p4] <= 0; [L101] assert #memory_int[p5] >= 0; [L102] assert #memory_int[p6] <= 0; [L103] assert #memory_int[p7] >= 0; [L104] assert #memory_int[p8] <= 0; [L105] assert #memory_int[p9] >= 0; [L106] assert #memory_int[p10] <= 0; - UnprovableResult [Line: 107]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L39] #memory_int[p1] := 0; [L40] #memory_int[p2] := 0; [L41] #memory_int[p3] := 0; [L42] #memory_int[p4] := 0; [L43] #memory_int[p5] := 0; [L44] #memory_int[p6] := 0; [L45] #memory_int[p7] := 0; [L46] #memory_int[p8] := 0; [L47] #memory_int[p9] := 0; [L48] #memory_int[p10] := 0; [L49] #memory_int[p11] := 0; [L50] #memory_int[p12] := 0; [L51] #memory_int[p13] := 0; [L52] #memory_int[p14] := 0; [L53] #memory_int[p15] := 0; [L54] #memory_int[p16] := 0; [L55] #memory_int[p17] := 0; [L56] #memory_int[p18] := 0; [L97] assert #memory_int[p1] >= 0; [L98] assert #memory_int[p2] <= 0; [L99] assert #memory_int[p3] >= 0; [L100] assert #memory_int[p4] <= 0; [L101] assert #memory_int[p5] >= 0; [L102] assert #memory_int[p6] <= 0; [L103] assert #memory_int[p7] >= 0; [L104] assert #memory_int[p8] <= 0; [L105] assert #memory_int[p9] >= 0; [L106] assert #memory_int[p10] <= 0; [L107] assert #memory_int[p11] >= 0; - UnprovableResult [Line: 108]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L39] #memory_int[p1] := 0; [L40] #memory_int[p2] := 0; [L41] #memory_int[p3] := 0; [L42] #memory_int[p4] := 0; [L43] #memory_int[p5] := 0; [L44] #memory_int[p6] := 0; [L45] #memory_int[p7] := 0; [L46] #memory_int[p8] := 0; [L47] #memory_int[p9] := 0; [L48] #memory_int[p10] := 0; [L49] #memory_int[p11] := 0; [L50] #memory_int[p12] := 0; [L51] #memory_int[p13] := 0; [L52] #memory_int[p14] := 0; [L53] #memory_int[p15] := 0; [L54] #memory_int[p16] := 0; [L55] #memory_int[p17] := 0; [L56] #memory_int[p18] := 0; [L97] assert #memory_int[p1] >= 0; [L98] assert #memory_int[p2] <= 0; [L99] assert #memory_int[p3] >= 0; [L100] assert #memory_int[p4] <= 0; [L101] assert #memory_int[p5] >= 0; [L102] assert #memory_int[p6] <= 0; [L103] assert #memory_int[p7] >= 0; [L104] assert #memory_int[p8] <= 0; [L105] assert #memory_int[p9] >= 0; [L106] assert #memory_int[p10] <= 0; [L107] assert #memory_int[p11] >= 0; [L108] assert #memory_int[p12] <= 0; - UnprovableResult [Line: 109]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L39] #memory_int[p1] := 0; [L40] #memory_int[p2] := 0; [L41] #memory_int[p3] := 0; [L42] #memory_int[p4] := 0; [L43] #memory_int[p5] := 0; [L44] #memory_int[p6] := 0; [L45] #memory_int[p7] := 0; [L46] #memory_int[p8] := 0; [L47] #memory_int[p9] := 0; [L48] #memory_int[p10] := 0; [L49] #memory_int[p11] := 0; [L50] #memory_int[p12] := 0; [L51] #memory_int[p13] := 0; [L52] #memory_int[p14] := 0; [L53] #memory_int[p15] := 0; [L54] #memory_int[p16] := 0; [L55] #memory_int[p17] := 0; [L56] #memory_int[p18] := 0; [L97] assert #memory_int[p1] >= 0; [L98] assert #memory_int[p2] <= 0; [L99] assert #memory_int[p3] >= 0; [L100] assert #memory_int[p4] <= 0; [L101] assert #memory_int[p5] >= 0; [L102] assert #memory_int[p6] <= 0; [L103] assert #memory_int[p7] >= 0; [L104] assert #memory_int[p8] <= 0; [L105] assert #memory_int[p9] >= 0; [L106] assert #memory_int[p10] <= 0; [L107] assert #memory_int[p11] >= 0; [L108] assert #memory_int[p12] <= 0; [L109] assert #memory_int[p13] >= 0; - UnprovableResult [Line: 110]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L39] #memory_int[p1] := 0; [L40] #memory_int[p2] := 0; [L41] #memory_int[p3] := 0; [L42] #memory_int[p4] := 0; [L43] #memory_int[p5] := 0; [L44] #memory_int[p6] := 0; [L45] #memory_int[p7] := 0; [L46] #memory_int[p8] := 0; [L47] #memory_int[p9] := 0; [L48] #memory_int[p10] := 0; [L49] #memory_int[p11] := 0; [L50] #memory_int[p12] := 0; [L51] #memory_int[p13] := 0; [L52] #memory_int[p14] := 0; [L53] #memory_int[p15] := 0; [L54] #memory_int[p16] := 0; [L55] #memory_int[p17] := 0; [L56] #memory_int[p18] := 0; [L97] assert #memory_int[p1] >= 0; [L98] assert #memory_int[p2] <= 0; [L99] assert #memory_int[p3] >= 0; [L100] assert #memory_int[p4] <= 0; [L101] assert #memory_int[p5] >= 0; [L102] assert #memory_int[p6] <= 0; [L103] assert #memory_int[p7] >= 0; [L104] assert #memory_int[p8] <= 0; [L105] assert #memory_int[p9] >= 0; [L106] assert #memory_int[p10] <= 0; [L107] assert #memory_int[p11] >= 0; [L108] assert #memory_int[p12] <= 0; [L109] assert #memory_int[p13] >= 0; [L110] assert #memory_int[p14] <= 0; - UnprovableResult [Line: 111]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L39] #memory_int[p1] := 0; [L40] #memory_int[p2] := 0; [L41] #memory_int[p3] := 0; [L42] #memory_int[p4] := 0; [L43] #memory_int[p5] := 0; [L44] #memory_int[p6] := 0; [L45] #memory_int[p7] := 0; [L46] #memory_int[p8] := 0; [L47] #memory_int[p9] := 0; [L48] #memory_int[p10] := 0; [L49] #memory_int[p11] := 0; [L50] #memory_int[p12] := 0; [L51] #memory_int[p13] := 0; [L52] #memory_int[p14] := 0; [L53] #memory_int[p15] := 0; [L54] #memory_int[p16] := 0; [L55] #memory_int[p17] := 0; [L56] #memory_int[p18] := 0; [L97] assert #memory_int[p1] >= 0; [L98] assert #memory_int[p2] <= 0; [L99] assert #memory_int[p3] >= 0; [L100] assert #memory_int[p4] <= 0; [L101] assert #memory_int[p5] >= 0; [L102] assert #memory_int[p6] <= 0; [L103] assert #memory_int[p7] >= 0; [L104] assert #memory_int[p8] <= 0; [L105] assert #memory_int[p9] >= 0; [L106] assert #memory_int[p10] <= 0; [L107] assert #memory_int[p11] >= 0; [L108] assert #memory_int[p12] <= 0; [L109] assert #memory_int[p13] >= 0; [L110] assert #memory_int[p14] <= 0; [L111] assert #memory_int[p15] >= 0; - UnprovableResult [Line: 112]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L39] #memory_int[p1] := 0; [L40] #memory_int[p2] := 0; [L41] #memory_int[p3] := 0; [L42] #memory_int[p4] := 0; [L43] #memory_int[p5] := 0; [L44] #memory_int[p6] := 0; [L45] #memory_int[p7] := 0; [L46] #memory_int[p8] := 0; [L47] #memory_int[p9] := 0; [L48] #memory_int[p10] := 0; [L49] #memory_int[p11] := 0; [L50] #memory_int[p12] := 0; [L51] #memory_int[p13] := 0; [L52] #memory_int[p14] := 0; [L53] #memory_int[p15] := 0; [L54] #memory_int[p16] := 0; [L55] #memory_int[p17] := 0; [L56] #memory_int[p18] := 0; [L97] assert #memory_int[p1] >= 0; [L98] assert #memory_int[p2] <= 0; [L99] assert #memory_int[p3] >= 0; [L100] assert #memory_int[p4] <= 0; [L101] assert #memory_int[p5] >= 0; [L102] assert #memory_int[p6] <= 0; [L103] assert #memory_int[p7] >= 0; [L104] assert #memory_int[p8] <= 0; [L105] assert #memory_int[p9] >= 0; [L106] assert #memory_int[p10] <= 0; [L107] assert #memory_int[p11] >= 0; [L108] assert #memory_int[p12] <= 0; [L109] assert #memory_int[p13] >= 0; [L110] assert #memory_int[p14] <= 0; [L111] assert #memory_int[p15] >= 0; [L112] assert #memory_int[p16] <= 0; - UnprovableResult [Line: 113]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L39] #memory_int[p1] := 0; [L40] #memory_int[p2] := 0; [L41] #memory_int[p3] := 0; [L42] #memory_int[p4] := 0; [L43] #memory_int[p5] := 0; [L44] #memory_int[p6] := 0; [L45] #memory_int[p7] := 0; [L46] #memory_int[p8] := 0; [L47] #memory_int[p9] := 0; [L48] #memory_int[p10] := 0; [L49] #memory_int[p11] := 0; [L50] #memory_int[p12] := 0; [L51] #memory_int[p13] := 0; [L52] #memory_int[p14] := 0; [L53] #memory_int[p15] := 0; [L54] #memory_int[p16] := 0; [L55] #memory_int[p17] := 0; [L56] #memory_int[p18] := 0; [L97] assert #memory_int[p1] >= 0; [L98] assert #memory_int[p2] <= 0; [L99] assert #memory_int[p3] >= 0; [L100] assert #memory_int[p4] <= 0; [L101] assert #memory_int[p5] >= 0; [L102] assert #memory_int[p6] <= 0; [L103] assert #memory_int[p7] >= 0; [L104] assert #memory_int[p8] <= 0; [L105] assert #memory_int[p9] >= 0; [L106] assert #memory_int[p10] <= 0; [L107] assert #memory_int[p11] >= 0; [L108] assert #memory_int[p12] <= 0; [L109] assert #memory_int[p13] >= 0; [L110] assert #memory_int[p14] <= 0; [L111] assert #memory_int[p15] >= 0; [L112] assert #memory_int[p16] <= 0; [L113] assert #memory_int[p17] >= 0; - UnprovableResult [Line: 114]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L117-L118] modifies #valid; [L117-L119] ensures old(#valid)[ptr] == 0; [L117-L120] ensures #valid == old(#valid)[ptr := 1]; [L39] #memory_int[p1] := 0; [L40] #memory_int[p2] := 0; [L41] #memory_int[p3] := 0; [L42] #memory_int[p4] := 0; [L43] #memory_int[p5] := 0; [L44] #memory_int[p6] := 0; [L45] #memory_int[p7] := 0; [L46] #memory_int[p8] := 0; [L47] #memory_int[p9] := 0; [L48] #memory_int[p10] := 0; [L49] #memory_int[p11] := 0; [L50] #memory_int[p12] := 0; [L51] #memory_int[p13] := 0; [L52] #memory_int[p14] := 0; [L53] #memory_int[p15] := 0; [L54] #memory_int[p16] := 0; [L55] #memory_int[p17] := 0; [L56] #memory_int[p18] := 0; [L97] assert #memory_int[p1] >= 0; [L98] assert #memory_int[p2] <= 0; [L99] assert #memory_int[p3] >= 0; [L100] assert #memory_int[p4] <= 0; [L101] assert #memory_int[p5] >= 0; [L102] assert #memory_int[p6] <= 0; [L103] assert #memory_int[p7] >= 0; [L104] assert #memory_int[p8] <= 0; [L105] assert #memory_int[p9] >= 0; [L106] assert #memory_int[p10] <= 0; [L107] assert #memory_int[p11] >= 0; [L108] assert #memory_int[p12] <= 0; [L109] assert #memory_int[p13] >= 0; [L110] assert #memory_int[p14] <= 0; [L111] assert #memory_int[p15] >= 0; [L112] assert #memory_int[p16] <= 0; [L113] assert #memory_int[p17] >= 0; [L114] assert #memory_int[p18] <= 0; RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...