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-poc-dd-7-limited.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 12:13:42,352 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 12:13:42,354 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 12:13:42,370 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-08-05 12:13:42,406 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 12:13:42,418 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-05 12:13:42,419 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-05 12:13:42,419 INFO L136 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2019-08-05 12:13:42,420 INFO L138 SettingsManager]: * Show backtranslation warnings=false [2019-08-05 12:13:42,420 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-08-05 12:13:42,420 INFO L138 SettingsManager]: * User list type=DISABLED [2019-08-05 12:13:42,420 INFO L138 SettingsManager]: * Inline calls to unimplemented procedures=true [2019-08-05 12:13:42,420 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-08-05 12:13:42,421 INFO L138 SettingsManager]: * Explicit value domain=true [2019-08-05 12:13:42,421 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-08-05 12:13:42,421 INFO L138 SettingsManager]: * Octagon Domain=false [2019-08-05 12:13:42,421 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-08-05 12:13:42,421 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-08-05 12:13:42,422 INFO L138 SettingsManager]: * Interval Domain=false [2019-08-05 12:13:42,422 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-05 12:13:42,423 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-05 12:13:42,423 INFO L138 SettingsManager]: * Use SBE=true [2019-08-05 12:13:42,423 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-05 12:13:42,423 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-05 12:13:42,424 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-05 12:13:42,424 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-05 12:13:42,424 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-05 12:13:42,424 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-05 12:13:42,424 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-05 12:13:42,425 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-05 12:13:42,425 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-05 12:13:42,425 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-05 12:13:42,425 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-05 12:13:42,425 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-05 12:13:42,425 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-05 12:13:42,426 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-05 12:13:42,426 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-05 12:13:42,426 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-05 12:13:42,426 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-05 12:13:42,426 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-05 12:13:42,427 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-08-05 12:13:42,427 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-05 12:13:42,427 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-05 12:13:42,428 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-05 12:13:42,428 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-08-05 12:13:42,463 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 12:13:42,476 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 12:13:42,479 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 12:13:42,480 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 12:13:42,481 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 12:13:42,482 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/heapseparator/speedup-poc-dd-7-limited.bpl [2019-08-05 12:13:42,482 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/heapseparator/speedup-poc-dd-7-limited.bpl' [2019-08-05 12:13:42,529 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 12:13:42,530 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 12:13:42,531 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 12:13:42,532 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 12:13:42,532 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 12:13:42,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "speedup-poc-dd-7-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:13:42" (1/1) ... [2019-08-05 12:13:42,561 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "speedup-poc-dd-7-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:13:42" (1/1) ... [2019-08-05 12:13:42,589 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 12:13:42,589 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 12:13:42,590 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 12:13:42,590 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 12:13:42,601 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "speedup-poc-dd-7-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:13:42" (1/1) ... [2019-08-05 12:13:42,602 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "speedup-poc-dd-7-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:13:42" (1/1) ... [2019-08-05 12:13:42,604 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "speedup-poc-dd-7-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:13:42" (1/1) ... [2019-08-05 12:13:42,604 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "speedup-poc-dd-7-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:13:42" (1/1) ... [2019-08-05 12:13:42,608 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "speedup-poc-dd-7-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:13:42" (1/1) ... [2019-08-05 12:13:42,612 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "speedup-poc-dd-7-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:13:42" (1/1) ... [2019-08-05 12:13:42,613 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "speedup-poc-dd-7-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:13:42" (1/1) ... [2019-08-05 12:13:42,615 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 12:13:42,616 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 12:13:42,616 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 12:13:42,616 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 12:13:42,617 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "speedup-poc-dd-7-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:13:42" (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 12:13:42,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-05 12:13:42,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-05 12:13:43,178 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-05 12:13:43,178 INFO L283 CfgBuilder]: Removed 17 assume(true) statements. [2019-08-05 12:13:43,180 INFO L202 PluginConnector]: Adding new model speedup-poc-dd-7-limited.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 12:13:43 BoogieIcfgContainer [2019-08-05 12:13:43,180 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 12:13:43,181 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-08-05 12:13:43,181 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-08-05 12:13:43,181 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-08-05 12:13:43,182 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "speedup-poc-dd-7-limited.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 12:13:43" (1/1) ... [2019-08-05 12:13:43,210 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2019-08-05 12:13:43,303 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-08-05 12:13:43,336 INFO L272 AbstractInterpreter]: Visited 23 different actions 23 times. Never merged. Never widened. Performed 124 root evaluator evaluations with a maximum evaluation depth of 3. Performed 124 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 7 fixpoints after 7 different actions. Largest state had 0 variables. [2019-08-05 12:13:43,336 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-08-05 12:13:43,342 INFO L168 Benchmark]: Toolchain (without parser) took 810.01 ms. Allocated memory is still 141.6 MB. Free memory was 105.9 MB in the beginning and 82.5 MB in the end (delta: 23.3 MB). Peak memory consumption was 23.3 MB. Max. memory is 7.1 GB. [2019-08-05 12:13:43,344 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 ms. Allocated memory is still 141.6 MB. Free memory is still 107.1 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-08-05 12:13:43,346 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.73 ms. Allocated memory is still 141.6 MB. Free memory was 105.9 MB in the beginning and 103.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-08-05 12:13:43,348 INFO L168 Benchmark]: Boogie Preprocessor took 25.63 ms. Allocated memory is still 141.6 MB. Free memory was 103.8 MB in the beginning and 102.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. [2019-08-05 12:13:43,351 INFO L168 Benchmark]: RCFGBuilder took 564.42 ms. Allocated memory is still 141.6 MB. Free memory was 102.1 MB in the beginning and 89.5 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. [2019-08-05 12:13:43,352 INFO L168 Benchmark]: Abstract Interpretation took 155.92 ms. Allocated memory is still 141.6 MB. Free memory was 89.5 MB in the beginning and 82.5 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 7.1 GB. [2019-08-05 12:13:43,357 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.20 ms. Allocated memory is still 141.6 MB. Free memory is still 107.1 MB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 57.73 ms. Allocated memory is still 141.6 MB. Free memory was 105.9 MB in the beginning and 103.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.63 ms. Allocated memory is still 141.6 MB. Free memory was 103.8 MB in the beginning and 102.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 564.42 ms. Allocated memory is still 141.6 MB. Free memory was 102.1 MB in the beginning and 89.5 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 155.92 ms. Allocated memory is still 141.6 MB. Free memory was 89.5 MB in the beginning and 82.5 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - 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: [L68-L69] modifies #valid; [L68-L70] ensures old(#valid)[ptr] == 0; [L68-L71] ensures #valid == old(#valid)[ptr := 1]; [L68-L69] modifies #valid; [L68-L70] ensures old(#valid)[ptr] == 0; [L68-L71] ensures #valid == old(#valid)[ptr := 1]; [L68-L69] modifies #valid; [L68-L70] ensures old(#valid)[ptr] == 0; [L68-L71] ensures #valid == old(#valid)[ptr := 1]; [L68-L69] modifies #valid; [L68-L70] ensures old(#valid)[ptr] == 0; [L68-L71] ensures #valid == old(#valid)[ptr := 1]; [L68-L69] modifies #valid; [L68-L70] ensures old(#valid)[ptr] == 0; [L68-L71] ensures #valid == old(#valid)[ptr := 1]; [L68-L69] modifies #valid; [L68-L70] ensures old(#valid)[ptr] == 0; [L68-L71] ensures #valid == old(#valid)[ptr := 1]; [L68-L69] modifies #valid; [L68-L70] ensures old(#valid)[ptr] == 0; [L68-L71] ensures #valid == old(#valid)[ptr := 1]; [L25] assume p1 < p2; [L26] assume p2 < p3; [L27] assume p3 < p4; [L28] assume p4 < p5; [L29] assume p5 < p6; [L30] assume p6 < p7; [L32] #memory_int[p1] := 0; [L33] #memory_int[p2] := 0; [L34] #memory_int[p3] := 0; [L35] #memory_int[p4] := 0; [L36] #memory_int[p5] := 0; [L37] #memory_int[p6] := 0; [L38] #memory_int[p7] := 0; [L58] assert #memory_int[p1] >= 0; - UnprovableResult [Line: 59]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L68-L69] modifies #valid; [L68-L70] ensures old(#valid)[ptr] == 0; [L68-L71] ensures #valid == old(#valid)[ptr := 1]; [L68-L69] modifies #valid; [L68-L70] ensures old(#valid)[ptr] == 0; [L68-L71] ensures #valid == old(#valid)[ptr := 1]; [L68-L69] modifies #valid; [L68-L70] ensures old(#valid)[ptr] == 0; [L68-L71] ensures #valid == old(#valid)[ptr := 1]; [L68-L69] modifies #valid; [L68-L70] ensures old(#valid)[ptr] == 0; [L68-L71] ensures #valid == old(#valid)[ptr := 1]; [L68-L69] modifies #valid; [L68-L70] ensures old(#valid)[ptr] == 0; [L68-L71] ensures #valid == old(#valid)[ptr := 1]; [L68-L69] modifies #valid; [L68-L70] ensures old(#valid)[ptr] == 0; [L68-L71] ensures #valid == old(#valid)[ptr := 1]; [L68-L69] modifies #valid; [L68-L70] ensures old(#valid)[ptr] == 0; [L68-L71] ensures #valid == old(#valid)[ptr := 1]; [L25] assume p1 < p2; [L26] assume p2 < p3; [L27] assume p3 < p4; [L28] assume p4 < p5; [L29] assume p5 < p6; [L30] assume p6 < p7; [L32] #memory_int[p1] := 0; [L33] #memory_int[p2] := 0; [L34] #memory_int[p3] := 0; [L35] #memory_int[p4] := 0; [L36] #memory_int[p5] := 0; [L37] #memory_int[p6] := 0; [L38] #memory_int[p7] := 0; [L58] assert #memory_int[p1] >= 0; [L59] assert #memory_int[p2] <= 0; - UnprovableResult [Line: 60]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L68-L69] modifies #valid; [L68-L70] ensures old(#valid)[ptr] == 0; [L68-L71] ensures #valid == old(#valid)[ptr := 1]; [L68-L69] modifies #valid; [L68-L70] ensures old(#valid)[ptr] == 0; [L68-L71] ensures #valid == old(#valid)[ptr := 1]; [L68-L69] modifies #valid; [L68-L70] ensures old(#valid)[ptr] == 0; [L68-L71] ensures #valid == old(#valid)[ptr := 1]; [L68-L69] modifies #valid; [L68-L70] ensures old(#valid)[ptr] == 0; [L68-L71] ensures #valid == old(#valid)[ptr := 1]; [L68-L69] modifies #valid; [L68-L70] ensures old(#valid)[ptr] == 0; [L68-L71] ensures #valid == old(#valid)[ptr := 1]; [L68-L69] modifies #valid; [L68-L70] ensures old(#valid)[ptr] == 0; [L68-L71] ensures #valid == old(#valid)[ptr := 1]; [L68-L69] modifies #valid; [L68-L70] ensures old(#valid)[ptr] == 0; [L68-L71] ensures #valid == old(#valid)[ptr := 1]; [L25] assume p1 < p2; [L26] assume p2 < p3; [L27] assume p3 < p4; [L28] assume p4 < p5; [L29] assume p5 < p6; [L30] assume p6 < p7; [L32] #memory_int[p1] := 0; [L33] #memory_int[p2] := 0; [L34] #memory_int[p3] := 0; [L35] #memory_int[p4] := 0; [L36] #memory_int[p5] := 0; [L37] #memory_int[p6] := 0; [L38] #memory_int[p7] := 0; [L58] assert #memory_int[p1] >= 0; [L59] assert #memory_int[p2] <= 0; [L60] assert #memory_int[p3] >= 0; - UnprovableResult [Line: 61]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L68-L69] modifies #valid; [L68-L70] ensures old(#valid)[ptr] == 0; [L68-L71] ensures #valid == old(#valid)[ptr := 1]; [L68-L69] modifies #valid; [L68-L70] ensures old(#valid)[ptr] == 0; [L68-L71] ensures #valid == old(#valid)[ptr := 1]; [L68-L69] modifies #valid; [L68-L70] ensures old(#valid)[ptr] == 0; [L68-L71] ensures #valid == old(#valid)[ptr := 1]; [L68-L69] modifies #valid; [L68-L70] ensures old(#valid)[ptr] == 0; [L68-L71] ensures #valid == old(#valid)[ptr := 1]; [L68-L69] modifies #valid; [L68-L70] ensures old(#valid)[ptr] == 0; [L68-L71] ensures #valid == old(#valid)[ptr := 1]; [L68-L69] modifies #valid; [L68-L70] ensures old(#valid)[ptr] == 0; [L68-L71] ensures #valid == old(#valid)[ptr := 1]; [L68-L69] modifies #valid; [L68-L70] ensures old(#valid)[ptr] == 0; [L68-L71] ensures #valid == old(#valid)[ptr := 1]; [L25] assume p1 < p2; [L26] assume p2 < p3; [L27] assume p3 < p4; [L28] assume p4 < p5; [L29] assume p5 < p6; [L30] assume p6 < p7; [L32] #memory_int[p1] := 0; [L33] #memory_int[p2] := 0; [L34] #memory_int[p3] := 0; [L35] #memory_int[p4] := 0; [L36] #memory_int[p5] := 0; [L37] #memory_int[p6] := 0; [L38] #memory_int[p7] := 0; [L58] assert #memory_int[p1] >= 0; [L59] assert #memory_int[p2] <= 0; [L60] assert #memory_int[p3] >= 0; [L61] assert #memory_int[p4] <= 0; - UnprovableResult [Line: 62]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L68-L69] modifies #valid; [L68-L70] ensures old(#valid)[ptr] == 0; [L68-L71] ensures #valid == old(#valid)[ptr := 1]; [L68-L69] modifies #valid; [L68-L70] ensures old(#valid)[ptr] == 0; [L68-L71] ensures #valid == old(#valid)[ptr := 1]; [L68-L69] modifies #valid; [L68-L70] ensures old(#valid)[ptr] == 0; [L68-L71] ensures #valid == old(#valid)[ptr := 1]; [L68-L69] modifies #valid; [L68-L70] ensures old(#valid)[ptr] == 0; [L68-L71] ensures #valid == old(#valid)[ptr := 1]; [L68-L69] modifies #valid; [L68-L70] ensures old(#valid)[ptr] == 0; [L68-L71] ensures #valid == old(#valid)[ptr := 1]; [L68-L69] modifies #valid; [L68-L70] ensures old(#valid)[ptr] == 0; [L68-L71] ensures #valid == old(#valid)[ptr := 1]; [L68-L69] modifies #valid; [L68-L70] ensures old(#valid)[ptr] == 0; [L68-L71] ensures #valid == old(#valid)[ptr := 1]; [L25] assume p1 < p2; [L26] assume p2 < p3; [L27] assume p3 < p4; [L28] assume p4 < p5; [L29] assume p5 < p6; [L30] assume p6 < p7; [L32] #memory_int[p1] := 0; [L33] #memory_int[p2] := 0; [L34] #memory_int[p3] := 0; [L35] #memory_int[p4] := 0; [L36] #memory_int[p5] := 0; [L37] #memory_int[p6] := 0; [L38] #memory_int[p7] := 0; [L58] assert #memory_int[p1] >= 0; [L59] assert #memory_int[p2] <= 0; [L60] assert #memory_int[p3] >= 0; [L61] assert #memory_int[p4] <= 0; [L62] assert #memory_int[p5] >= 0; - UnprovableResult [Line: 63]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L68-L69] modifies #valid; [L68-L70] ensures old(#valid)[ptr] == 0; [L68-L71] ensures #valid == old(#valid)[ptr := 1]; [L68-L69] modifies #valid; [L68-L70] ensures old(#valid)[ptr] == 0; [L68-L71] ensures #valid == old(#valid)[ptr := 1]; [L68-L69] modifies #valid; [L68-L70] ensures old(#valid)[ptr] == 0; [L68-L71] ensures #valid == old(#valid)[ptr := 1]; [L68-L69] modifies #valid; [L68-L70] ensures old(#valid)[ptr] == 0; [L68-L71] ensures #valid == old(#valid)[ptr := 1]; [L68-L69] modifies #valid; [L68-L70] ensures old(#valid)[ptr] == 0; [L68-L71] ensures #valid == old(#valid)[ptr := 1]; [L68-L69] modifies #valid; [L68-L70] ensures old(#valid)[ptr] == 0; [L68-L71] ensures #valid == old(#valid)[ptr := 1]; [L68-L69] modifies #valid; [L68-L70] ensures old(#valid)[ptr] == 0; [L68-L71] ensures #valid == old(#valid)[ptr := 1]; [L25] assume p1 < p2; [L26] assume p2 < p3; [L27] assume p3 < p4; [L28] assume p4 < p5; [L29] assume p5 < p6; [L30] assume p6 < p7; [L32] #memory_int[p1] := 0; [L33] #memory_int[p2] := 0; [L34] #memory_int[p3] := 0; [L35] #memory_int[p4] := 0; [L36] #memory_int[p5] := 0; [L37] #memory_int[p6] := 0; [L38] #memory_int[p7] := 0; [L58] assert #memory_int[p1] >= 0; [L59] assert #memory_int[p2] <= 0; [L60] assert #memory_int[p3] >= 0; [L61] assert #memory_int[p4] <= 0; [L62] assert #memory_int[p5] >= 0; [L63] assert #memory_int[p6] <= 0; - UnprovableResult [Line: 64]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L68-L69] modifies #valid; [L68-L70] ensures old(#valid)[ptr] == 0; [L68-L71] ensures #valid == old(#valid)[ptr := 1]; [L68-L69] modifies #valid; [L68-L70] ensures old(#valid)[ptr] == 0; [L68-L71] ensures #valid == old(#valid)[ptr := 1]; [L68-L69] modifies #valid; [L68-L70] ensures old(#valid)[ptr] == 0; [L68-L71] ensures #valid == old(#valid)[ptr := 1]; [L68-L69] modifies #valid; [L68-L70] ensures old(#valid)[ptr] == 0; [L68-L71] ensures #valid == old(#valid)[ptr := 1]; [L68-L69] modifies #valid; [L68-L70] ensures old(#valid)[ptr] == 0; [L68-L71] ensures #valid == old(#valid)[ptr := 1]; [L68-L69] modifies #valid; [L68-L70] ensures old(#valid)[ptr] == 0; [L68-L71] ensures #valid == old(#valid)[ptr := 1]; [L68-L69] modifies #valid; [L68-L70] ensures old(#valid)[ptr] == 0; [L68-L71] ensures #valid == old(#valid)[ptr := 1]; [L25] assume p1 < p2; [L26] assume p2 < p3; [L27] assume p3 < p4; [L28] assume p4 < p5; [L29] assume p5 < p6; [L30] assume p6 < p7; [L32] #memory_int[p1] := 0; [L33] #memory_int[p2] := 0; [L34] #memory_int[p3] := 0; [L35] #memory_int[p4] := 0; [L36] #memory_int[p5] := 0; [L37] #memory_int[p6] := 0; [L38] #memory_int[p7] := 0; [L58] assert #memory_int[p1] >= 0; [L59] assert #memory_int[p2] <= 0; [L60] assert #memory_int[p3] >= 0; [L61] assert #memory_int[p4] <= 0; [L62] assert #memory_int[p5] >= 0; [L63] assert #memory_int[p6] <= 0; [L64] assert #memory_int[p7] >= 0; RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...