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_array_compound_exp_cong.epf -i ../../../trunk/examples/programs/heapseparator/speedup-poc-dd-6-limited.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-1de736e-m [2019-02-15 11:40:21,030 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-02-15 11:40:21,032 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-02-15 11:40:21,052 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-02-15 11:40:21,052 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-02-15 11:40:21,053 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-02-15 11:40:21,055 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-02-15 11:40:21,056 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-02-15 11:40:21,058 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-02-15 11:40:21,059 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-02-15 11:40:21,060 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-02-15 11:40:21,060 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-02-15 11:40:21,061 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-02-15 11:40:21,062 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-02-15 11:40:21,064 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-02-15 11:40:21,064 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-02-15 11:40:21,065 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-02-15 11:40:21,067 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-02-15 11:40:21,069 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-02-15 11:40:21,071 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-02-15 11:40:21,072 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-02-15 11:40:21,074 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-02-15 11:40:21,076 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-02-15 11:40:21,077 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-02-15 11:40:21,077 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-02-15 11:40:21,078 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-02-15 11:40:21,079 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-02-15 11:40:21,080 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-02-15 11:40:21,081 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-02-15 11:40:21,082 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-02-15 11:40:21,083 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-02-15 11:40:21,083 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-02-15 11:40:21,084 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-02-15 11:40:21,084 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-02-15 11:40:21,085 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-02-15 11:40:21,086 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-02-15 11:40:21,086 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 [2019-02-15 11:40:21,099 INFO L110 SettingsManager]: Loading preferences was successful [2019-02-15 11:40:21,099 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-02-15 11:40:21,100 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2019-02-15 11:40:21,101 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2019-02-15 11:40:21,101 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-02-15 11:40:21,101 INFO L133 SettingsManager]: * User list type=DISABLED [2019-02-15 11:40:21,101 INFO L133 SettingsManager]: * Inline calls to unimplemented procedures=true [2019-02-15 11:40:21,101 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-02-15 11:40:21,102 INFO L133 SettingsManager]: * Explicit value domain=true [2019-02-15 11:40:21,103 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-02-15 11:40:21,103 INFO L133 SettingsManager]: * Octagon Domain=false [2019-02-15 11:40:21,103 INFO L133 SettingsManager]: * Abstract domain=ArrayDomain [2019-02-15 11:40:21,103 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-02-15 11:40:21,104 INFO L133 SettingsManager]: * Interval Domain=false [2019-02-15 11:40:21,104 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-02-15 11:40:21,105 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-02-15 11:40:21,105 INFO L133 SettingsManager]: * Use SBE=true [2019-02-15 11:40:21,105 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-02-15 11:40:21,105 INFO L133 SettingsManager]: * sizeof long=4 [2019-02-15 11:40:21,106 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-02-15 11:40:21,106 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-02-15 11:40:21,106 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-02-15 11:40:21,106 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-02-15 11:40:21,106 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-02-15 11:40:21,106 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-02-15 11:40:21,107 INFO L133 SettingsManager]: * sizeof long double=12 [2019-02-15 11:40:21,107 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-02-15 11:40:21,107 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-02-15 11:40:21,107 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-02-15 11:40:21,108 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-02-15 11:40:21,108 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-02-15 11:40:21,108 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-02-15 11:40:21,108 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-02-15 11:40:21,108 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-02-15 11:40:21,108 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-02-15 11:40:21,109 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-02-15 11:40:21,109 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-02-15 11:40:21,109 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-02-15 11:40:21,109 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-02-15 11:40:21,109 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-02-15 11:40:21,139 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-02-15 11:40:21,151 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-02-15 11:40:21,155 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-02-15 11:40:21,156 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-02-15 11:40:21,157 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2019-02-15 11:40:21,158 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/heapseparator/speedup-poc-dd-6-limited.bpl [2019-02-15 11:40:21,158 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/heapseparator/speedup-poc-dd-6-limited.bpl' [2019-02-15 11:40:21,191 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-02-15 11:40:21,192 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-02-15 11:40:21,193 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-02-15 11:40:21,193 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-02-15 11:40:21,193 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-02-15 11:40:21,209 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "speedup-poc-dd-6-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.02 11:40:21" (1/1) ... [2019-02-15 11:40:21,219 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "speedup-poc-dd-6-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.02 11:40:21" (1/1) ... [2019-02-15 11:40:21,245 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-02-15 11:40:21,246 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-02-15 11:40:21,246 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-02-15 11:40:21,246 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-02-15 11:40:21,257 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "speedup-poc-dd-6-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.02 11:40:21" (1/1) ... [2019-02-15 11:40:21,258 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "speedup-poc-dd-6-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.02 11:40:21" (1/1) ... [2019-02-15 11:40:21,260 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "speedup-poc-dd-6-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.02 11:40:21" (1/1) ... [2019-02-15 11:40:21,260 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "speedup-poc-dd-6-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.02 11:40:21" (1/1) ... [2019-02-15 11:40:21,263 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "speedup-poc-dd-6-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.02 11:40:21" (1/1) ... [2019-02-15 11:40:21,267 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "speedup-poc-dd-6-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.02 11:40:21" (1/1) ... [2019-02-15 11:40:21,269 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "speedup-poc-dd-6-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.02 11:40:21" (1/1) ... [2019-02-15 11:40:21,270 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-02-15 11:40:21,271 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-02-15 11:40:21,271 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-02-15 11:40:21,272 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-02-15 11:40:21,272 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "speedup-poc-dd-6-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.02 11:40:21" (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 [2019-02-15 11:40:21,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-02-15 11:40:21,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-02-15 11:40:21,753 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-02-15 11:40:21,754 INFO L286 CfgBuilder]: Removed 15 assue(true) statements. [2019-02-15 11:40:21,755 INFO L202 PluginConnector]: Adding new model speedup-poc-dd-6-limited.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 11:40:21 BoogieIcfgContainer [2019-02-15 11:40:21,756 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-02-15 11:40:21,756 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-02-15 11:40:21,757 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-02-15 11:40:21,757 INFO L276 PluginConnector]: Abstract Interpretation initialized [2019-02-15 11:40:21,758 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "speedup-poc-dd-6-limited.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 11:40:21" (1/1) ... [2019-02-15 11:40:21,797 INFO L101 FixpointEngine]: Starting fixpoint engine with domain ArrayDomain (maxUnwinding=3, maxParallelStates=2) [2019-02-15 11:40:22,373 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-02-15 11:40:22,405 INFO L272 AbstractInterpreter]: Visited 20 different actions 20 times. Never merged. Never widened. Found 6 fixpoints after 6 different actions. Largest state had 0 variables. [2019-02-15 11:40:22,409 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-02-15 11:40:22,412 INFO L168 Benchmark]: Toolchain (without parser) took 1220.71 ms. Allocated memory is still 141.0 MB. Free memory was 107.2 MB in the beginning and 63.7 MB in the end (delta: 43.5 MB). Peak memory consumption was 43.5 MB. Max. memory is 7.1 GB. [2019-02-15 11:40:22,416 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.19 ms. Allocated memory is still 141.0 MB. Free memory is still 108.5 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-02-15 11:40:22,417 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.31 ms. Allocated memory is still 141.0 MB. Free memory was 107.0 MB in the beginning and 104.7 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. [2019-02-15 11:40:22,419 INFO L168 Benchmark]: Boogie Preprocessor took 25.03 ms. Allocated memory is still 141.0 MB. Free memory was 104.7 MB in the beginning and 103.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. [2019-02-15 11:40:22,420 INFO L168 Benchmark]: RCFGBuilder took 484.68 ms. Allocated memory is still 141.0 MB. Free memory was 103.5 MB in the beginning and 91.7 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 7.1 GB. [2019-02-15 11:40:22,423 INFO L168 Benchmark]: Abstract Interpretation took 652.92 ms. Allocated memory is still 141.0 MB. Free memory was 91.7 MB in the beginning and 63.7 MB in the end (delta: 28.0 MB). Peak memory consumption was 28.0 MB. Max. memory is 7.1 GB. [2019-02-15 11:40:22,429 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.19 ms. Allocated memory is still 141.0 MB. Free memory is still 108.5 MB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 52.31 ms. Allocated memory is still 141.0 MB. Free memory was 107.0 MB in the beginning and 104.7 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.03 ms. Allocated memory is still 141.0 MB. Free memory was 104.7 MB in the beginning and 103.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 484.68 ms. Allocated memory is still 141.0 MB. Free memory was 103.5 MB in the beginning and 91.7 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 652.92 ms. Allocated memory is still 141.0 MB. Free memory was 91.7 MB in the beginning and 63.7 MB in the end (delta: 28.0 MB). Peak memory consumption was 28.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 53]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L62-L63] modifies #valid; [L62-L64] ensures old(#valid)[ptr] == 0; [L62-L65] ensures #valid == old(#valid)[ptr := 1]; [L62-L63] modifies #valid; [L62-L64] ensures old(#valid)[ptr] == 0; [L62-L65] ensures #valid == old(#valid)[ptr := 1]; [L62-L63] modifies #valid; [L62-L64] ensures old(#valid)[ptr] == 0; [L62-L65] ensures #valid == old(#valid)[ptr := 1]; [L62-L63] modifies #valid; [L62-L64] ensures old(#valid)[ptr] == 0; [L62-L65] ensures #valid == old(#valid)[ptr := 1]; [L62-L63] modifies #valid; [L62-L64] ensures old(#valid)[ptr] == 0; [L62-L65] ensures #valid == old(#valid)[ptr := 1]; [L62-L63] modifies #valid; [L62-L64] ensures old(#valid)[ptr] == 0; [L62-L65] ensures #valid == old(#valid)[ptr := 1]; [L24] assume p1 < p2; [L25] assume p2 < p3; [L26] assume p3 < p4; [L27] assume p4 < p5; [L28] assume p5 < p6; [L30] #memory_int[p1] := 0; [L31] #memory_int[p2] := 0; [L32] #memory_int[p3] := 0; [L33] #memory_int[p4] := 0; [L34] #memory_int[p5] := 0; [L35] #memory_int[p6] := 0; [L53] assert #memory_int[p1] >= 0; - UnprovableResult [Line: 54]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L62-L63] modifies #valid; [L62-L64] ensures old(#valid)[ptr] == 0; [L62-L65] ensures #valid == old(#valid)[ptr := 1]; [L62-L63] modifies #valid; [L62-L64] ensures old(#valid)[ptr] == 0; [L62-L65] ensures #valid == old(#valid)[ptr := 1]; [L62-L63] modifies #valid; [L62-L64] ensures old(#valid)[ptr] == 0; [L62-L65] ensures #valid == old(#valid)[ptr := 1]; [L62-L63] modifies #valid; [L62-L64] ensures old(#valid)[ptr] == 0; [L62-L65] ensures #valid == old(#valid)[ptr := 1]; [L62-L63] modifies #valid; [L62-L64] ensures old(#valid)[ptr] == 0; [L62-L65] ensures #valid == old(#valid)[ptr := 1]; [L62-L63] modifies #valid; [L62-L64] ensures old(#valid)[ptr] == 0; [L62-L65] ensures #valid == old(#valid)[ptr := 1]; [L24] assume p1 < p2; [L25] assume p2 < p3; [L26] assume p3 < p4; [L27] assume p4 < p5; [L28] assume p5 < p6; [L30] #memory_int[p1] := 0; [L31] #memory_int[p2] := 0; [L32] #memory_int[p3] := 0; [L33] #memory_int[p4] := 0; [L34] #memory_int[p5] := 0; [L35] #memory_int[p6] := 0; [L53] assert #memory_int[p1] >= 0; [L54] assert #memory_int[p2] <= 0; - UnprovableResult [Line: 55]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L62-L63] modifies #valid; [L62-L64] ensures old(#valid)[ptr] == 0; [L62-L65] ensures #valid == old(#valid)[ptr := 1]; [L62-L63] modifies #valid; [L62-L64] ensures old(#valid)[ptr] == 0; [L62-L65] ensures #valid == old(#valid)[ptr := 1]; [L62-L63] modifies #valid; [L62-L64] ensures old(#valid)[ptr] == 0; [L62-L65] ensures #valid == old(#valid)[ptr := 1]; [L62-L63] modifies #valid; [L62-L64] ensures old(#valid)[ptr] == 0; [L62-L65] ensures #valid == old(#valid)[ptr := 1]; [L62-L63] modifies #valid; [L62-L64] ensures old(#valid)[ptr] == 0; [L62-L65] ensures #valid == old(#valid)[ptr := 1]; [L62-L63] modifies #valid; [L62-L64] ensures old(#valid)[ptr] == 0; [L62-L65] ensures #valid == old(#valid)[ptr := 1]; [L24] assume p1 < p2; [L25] assume p2 < p3; [L26] assume p3 < p4; [L27] assume p4 < p5; [L28] assume p5 < p6; [L30] #memory_int[p1] := 0; [L31] #memory_int[p2] := 0; [L32] #memory_int[p3] := 0; [L33] #memory_int[p4] := 0; [L34] #memory_int[p5] := 0; [L35] #memory_int[p6] := 0; [L53] assert #memory_int[p1] >= 0; [L54] assert #memory_int[p2] <= 0; [L55] assert #memory_int[p3] >= 0; - UnprovableResult [Line: 56]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L62-L63] modifies #valid; [L62-L64] ensures old(#valid)[ptr] == 0; [L62-L65] ensures #valid == old(#valid)[ptr := 1]; [L62-L63] modifies #valid; [L62-L64] ensures old(#valid)[ptr] == 0; [L62-L65] ensures #valid == old(#valid)[ptr := 1]; [L62-L63] modifies #valid; [L62-L64] ensures old(#valid)[ptr] == 0; [L62-L65] ensures #valid == old(#valid)[ptr := 1]; [L62-L63] modifies #valid; [L62-L64] ensures old(#valid)[ptr] == 0; [L62-L65] ensures #valid == old(#valid)[ptr := 1]; [L62-L63] modifies #valid; [L62-L64] ensures old(#valid)[ptr] == 0; [L62-L65] ensures #valid == old(#valid)[ptr := 1]; [L62-L63] modifies #valid; [L62-L64] ensures old(#valid)[ptr] == 0; [L62-L65] ensures #valid == old(#valid)[ptr := 1]; [L24] assume p1 < p2; [L25] assume p2 < p3; [L26] assume p3 < p4; [L27] assume p4 < p5; [L28] assume p5 < p6; [L30] #memory_int[p1] := 0; [L31] #memory_int[p2] := 0; [L32] #memory_int[p3] := 0; [L33] #memory_int[p4] := 0; [L34] #memory_int[p5] := 0; [L35] #memory_int[p6] := 0; [L53] assert #memory_int[p1] >= 0; [L54] assert #memory_int[p2] <= 0; [L55] assert #memory_int[p3] >= 0; [L56] assert #memory_int[p4] <= 0; - UnprovableResult [Line: 57]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L62-L63] modifies #valid; [L62-L64] ensures old(#valid)[ptr] == 0; [L62-L65] ensures #valid == old(#valid)[ptr := 1]; [L62-L63] modifies #valid; [L62-L64] ensures old(#valid)[ptr] == 0; [L62-L65] ensures #valid == old(#valid)[ptr := 1]; [L62-L63] modifies #valid; [L62-L64] ensures old(#valid)[ptr] == 0; [L62-L65] ensures #valid == old(#valid)[ptr := 1]; [L62-L63] modifies #valid; [L62-L64] ensures old(#valid)[ptr] == 0; [L62-L65] ensures #valid == old(#valid)[ptr := 1]; [L62-L63] modifies #valid; [L62-L64] ensures old(#valid)[ptr] == 0; [L62-L65] ensures #valid == old(#valid)[ptr := 1]; [L62-L63] modifies #valid; [L62-L64] ensures old(#valid)[ptr] == 0; [L62-L65] ensures #valid == old(#valid)[ptr := 1]; [L24] assume p1 < p2; [L25] assume p2 < p3; [L26] assume p3 < p4; [L27] assume p4 < p5; [L28] assume p5 < p6; [L30] #memory_int[p1] := 0; [L31] #memory_int[p2] := 0; [L32] #memory_int[p3] := 0; [L33] #memory_int[p4] := 0; [L34] #memory_int[p5] := 0; [L35] #memory_int[p6] := 0; [L53] assert #memory_int[p1] >= 0; [L54] assert #memory_int[p2] <= 0; [L55] assert #memory_int[p3] >= 0; [L56] assert #memory_int[p4] <= 0; [L57] assert #memory_int[p5] >= 0; - UnprovableResult [Line: 58]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L62-L63] modifies #valid; [L62-L64] ensures old(#valid)[ptr] == 0; [L62-L65] ensures #valid == old(#valid)[ptr := 1]; [L62-L63] modifies #valid; [L62-L64] ensures old(#valid)[ptr] == 0; [L62-L65] ensures #valid == old(#valid)[ptr := 1]; [L62-L63] modifies #valid; [L62-L64] ensures old(#valid)[ptr] == 0; [L62-L65] ensures #valid == old(#valid)[ptr := 1]; [L62-L63] modifies #valid; [L62-L64] ensures old(#valid)[ptr] == 0; [L62-L65] ensures #valid == old(#valid)[ptr := 1]; [L62-L63] modifies #valid; [L62-L64] ensures old(#valid)[ptr] == 0; [L62-L65] ensures #valid == old(#valid)[ptr := 1]; [L62-L63] modifies #valid; [L62-L64] ensures old(#valid)[ptr] == 0; [L62-L65] ensures #valid == old(#valid)[ptr := 1]; [L24] assume p1 < p2; [L25] assume p2 < p3; [L26] assume p3 < p4; [L27] assume p4 < p5; [L28] assume p5 < p6; [L30] #memory_int[p1] := 0; [L31] #memory_int[p2] := 0; [L32] #memory_int[p3] := 0; [L33] #memory_int[p4] := 0; [L34] #memory_int[p5] := 0; [L35] #memory_int[p6] := 0; [L53] assert #memory_int[p1] >= 0; [L54] assert #memory_int[p2] <= 0; [L55] assert #memory_int[p3] >= 0; [L56] assert #memory_int[p4] <= 0; [L57] assert #memory_int[p5] >= 0; [L58] assert #memory_int[p6] <= 0; RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...