java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AbstractInterpretationInline.xml -s ../../../trunk/examples/settings/ai/array-bench/reach_32bit_compound_exp_cong.epf -i ../../../trunk/examples/programs/heapseparator/speedup-poc-dd-7-limited.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-824f902 [2018-12-19 12:43:05,352 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-19 12:43:05,354 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-19 12:43:05,366 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-19 12:43:05,366 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-19 12:43:05,367 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-19 12:43:05,369 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-19 12:43:05,371 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-19 12:43:05,373 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-19 12:43:05,374 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-19 12:43:05,375 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-12-19 12:43:05,406 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/array-bench/reach_32bit_compound_exp_cong.epf [2018-12-19 12:43:05,420 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-19 12:43:05,421 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-19 12:43:05,422 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2018-12-19 12:43:05,422 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2018-12-19 12:43:05,422 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-19 12:43:05,423 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-19 12:43:05,423 INFO L133 SettingsManager]: * Inline calls to unimplemented procedures=true [2018-12-19 12:43:05,423 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-19 12:43:05,424 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-19 12:43:05,424 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-19 12:43:05,424 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-19 12:43:05,424 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-19 12:43:05,425 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-19 12:43:05,425 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-19 12:43:05,426 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-19 12:43:05,426 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-19 12:43:05,426 INFO L133 SettingsManager]: * Use SBE=true [2018-12-19 12:43:05,427 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-19 12:43:05,427 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-19 12:43:05,427 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-19 12:43:05,428 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-19 12:43:05,428 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-19 12:43:05,428 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-19 12:43:05,428 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-19 12:43:05,429 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-19 12:43:05,429 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-19 12:43:05,429 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-19 12:43:05,429 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-19 12:43:05,430 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-19 12:43:05,430 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-19 12:43:05,430 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-19 12:43:05,430 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-19 12:43:05,430 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-19 12:43:05,431 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-19 12:43:05,431 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-19 12:43:05,431 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-19 12:43:05,431 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-19 12:43:05,432 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-19 12:43:05,432 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-19 12:43:05,432 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-12-19 12:43:05,462 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-19 12:43:05,481 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-19 12:43:05,488 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-19 12:43:05,490 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-12-19 12:43:05,491 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-12-19 12:43:05,491 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/heapseparator/speedup-poc-dd-7-limited.bpl [2018-12-19 12:43:05,492 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/heapseparator/speedup-poc-dd-7-limited.bpl' [2018-12-19 12:43:05,548 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-19 12:43:05,550 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-12-19 12:43:05,551 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-19 12:43:05,551 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-19 12:43:05,551 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-19 12:43:05,570 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 19.12 12:43:05" (1/1) ... [2018-12-19 12:43:05,584 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 19.12 12:43:05" (1/1) ... [2018-12-19 12:43:05,615 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-19 12:43:05,616 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-19 12:43:05,616 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-19 12:43:05,616 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-19 12:43:05,628 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 19.12 12:43:05" (1/1) ... [2018-12-19 12:43:05,628 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 19.12 12:43:05" (1/1) ... [2018-12-19 12:43:05,630 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 19.12 12:43:05" (1/1) ... [2018-12-19 12:43:05,631 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 19.12 12:43:05" (1/1) ... [2018-12-19 12:43:05,635 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 19.12 12:43:05" (1/1) ... [2018-12-19 12:43:05,640 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 19.12 12:43:05" (1/1) ... [2018-12-19 12:43:05,641 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 19.12 12:43:05" (1/1) ... [2018-12-19 12:43:05,643 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-19 12:43:05,644 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-19 12:43:05,644 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-19 12:43:05,645 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-19 12:43:05,646 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 19.12 12:43:05" (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 [2018-12-19 12:43:05,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-19 12:43:05,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-19 12:43:06,692 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-19 12:43:06,692 INFO L280 CfgBuilder]: Removed 17 assue(true) statements. [2018-12-19 12:43:06,693 INFO L202 PluginConnector]: Adding new model speedup-poc-dd-7-limited.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 12:43:06 BoogieIcfgContainer [2018-12-19 12:43:06,693 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-19 12:43:06,694 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2018-12-19 12:43:06,694 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2018-12-19 12:43:06,694 INFO L276 PluginConnector]: Abstract Interpretation initialized [2018-12-19 12:43:06,695 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 19.12 12:43:06" (1/1) ... [2018-12-19 12:43:06,739 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-19 12:43:06,987 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-19 12:43:07,022 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. [2018-12-19 12:43:07,023 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2018-12-19 12:43:07,025 INFO L168 Benchmark]: Toolchain (without parser) took 1476.22 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. [2018-12-19 12:43:07,027 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-12-19 12:43:07,028 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.54 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-12-19 12:43:07,029 INFO L168 Benchmark]: Boogie Preprocessor took 27.99 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-12-19 12:43:07,029 INFO L168 Benchmark]: RCFGBuilder took 1048.76 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-12-19 12:43:07,031 INFO L168 Benchmark]: Abstract Interpretation took 329.99 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-12-19 12:43:07,036 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - GenericResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 64.54 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.99 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 1048.76 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 329.99 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 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...