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_oct.epf -i ../../../trunk/examples/programs/heapseparator/speedup-poc-dd-5-unlimited.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b7bd044-m [2019-01-18 15:06:34,541 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-18 15:06:34,543 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-18 15:06:34,556 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-18 15:06:34,556 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-18 15:06:34,557 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-18 15:06:34,559 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-18 15:06:34,561 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-18 15:06:34,563 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-18 15:06:34,564 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-18 15:06:34,565 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-18 15:06:34,565 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-18 15:06:34,566 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-18 15:06:34,567 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-18 15:06:34,568 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-18 15:06:34,569 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-18 15:06:34,570 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-18 15:06:34,572 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-18 15:06:34,575 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-18 15:06:34,577 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-18 15:06:34,578 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-18 15:06:34,579 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-18 15:06:34,582 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-18 15:06:34,583 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-18 15:06:34,583 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-18 15:06:34,584 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-18 15:06:34,585 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-18 15:06:34,586 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-18 15:06:34,587 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-18 15:06:34,588 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-18 15:06:34,589 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-18 15:06:34,589 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-18 15:06:34,590 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-18 15:06:34,590 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-18 15:06:34,591 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-18 15:06:34,592 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-18 15:06:34,592 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/array-bench/reach_32bit_oct.epf [2019-01-18 15:06:34,606 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-18 15:06:34,606 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-18 15:06:34,607 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2019-01-18 15:06:34,608 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2019-01-18 15:06:34,608 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-01-18 15:06:34,608 INFO L133 SettingsManager]: * User list type=DISABLED [2019-01-18 15:06:34,608 INFO L133 SettingsManager]: * Inline calls to unimplemented procedures=true [2019-01-18 15:06:34,609 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-01-18 15:06:34,609 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-01-18 15:06:34,609 INFO L133 SettingsManager]: * Underlying domain=OctagonDomain [2019-01-18 15:06:34,609 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2019-01-18 15:06:34,610 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-01-18 15:06:34,610 INFO L133 SettingsManager]: * Interval Domain=false [2019-01-18 15:06:34,611 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-18 15:06:34,611 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-18 15:06:34,611 INFO L133 SettingsManager]: * Use SBE=true [2019-01-18 15:06:34,611 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-18 15:06:34,612 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-18 15:06:34,612 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-18 15:06:34,612 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-18 15:06:34,612 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-18 15:06:34,612 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-18 15:06:34,613 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-18 15:06:34,613 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-18 15:06:34,613 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-18 15:06:34,613 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-18 15:06:34,613 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-18 15:06:34,614 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-18 15:06:34,614 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-18 15:06:34,614 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-18 15:06:34,614 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-18 15:06:34,615 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-18 15:06:34,615 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-18 15:06:34,615 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-18 15:06:34,615 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-01-18 15:06:34,616 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-18 15:06:34,617 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-18 15:06:34,617 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-01-18 15:06:34,617 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-01-18 15:06:34,667 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-18 15:06:34,682 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-18 15:06:34,688 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-18 15:06:34,689 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-01-18 15:06:34,690 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2019-01-18 15:06:34,691 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/heapseparator/speedup-poc-dd-5-unlimited.bpl [2019-01-18 15:06:34,691 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/heapseparator/speedup-poc-dd-5-unlimited.bpl' [2019-01-18 15:06:34,732 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-18 15:06:34,734 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-01-18 15:06:34,735 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-18 15:06:34,735 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-18 15:06:34,735 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-18 15:06:34,752 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "speedup-poc-dd-5-unlimited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 03:06:34" (1/1) ... [2019-01-18 15:06:34,764 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "speedup-poc-dd-5-unlimited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 03:06:34" (1/1) ... [2019-01-18 15:06:34,792 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-18 15:06:34,793 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-18 15:06:34,793 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-18 15:06:34,794 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-18 15:06:34,805 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "speedup-poc-dd-5-unlimited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 03:06:34" (1/1) ... [2019-01-18 15:06:34,805 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "speedup-poc-dd-5-unlimited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 03:06:34" (1/1) ... [2019-01-18 15:06:34,807 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "speedup-poc-dd-5-unlimited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 03:06:34" (1/1) ... [2019-01-18 15:06:34,807 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "speedup-poc-dd-5-unlimited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 03:06:34" (1/1) ... [2019-01-18 15:06:34,811 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "speedup-poc-dd-5-unlimited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 03:06:34" (1/1) ... [2019-01-18 15:06:34,815 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "speedup-poc-dd-5-unlimited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 03:06:34" (1/1) ... [2019-01-18 15:06:34,816 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "speedup-poc-dd-5-unlimited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 03:06:34" (1/1) ... [2019-01-18 15:06:34,818 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-18 15:06:34,818 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-18 15:06:34,818 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-18 15:06:34,819 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-18 15:06:34,820 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "speedup-poc-dd-5-unlimited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 03:06:34" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-18 15:06:34,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-18 15:06:34,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-18 15:06:35,575 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-18 15:06:35,575 INFO L286 CfgBuilder]: Removed 13 assue(true) statements. [2019-01-18 15:06:35,577 INFO L202 PluginConnector]: Adding new model speedup-poc-dd-5-unlimited.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 03:06:35 BoogieIcfgContainer [2019-01-18 15:06:35,577 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-18 15:06:35,580 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-01-18 15:06:35,580 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-01-18 15:06:35,581 INFO L276 PluginConnector]: Abstract Interpretation initialized [2019-01-18 15:06:35,581 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "speedup-poc-dd-5-unlimited.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 03:06:35" (1/1) ... [2019-01-18 15:06:35,654 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2019-01-18 15:06:35,926 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-01-18 15:06:35,953 INFO L272 AbstractInterpreter]: Visited 17 different actions 17 times. Never merged. Never widened. Found 5 fixpoints after 5 different actions. Largest state had 0 variables. [2019-01-18 15:06:35,955 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-01-18 15:06:35,957 INFO L168 Benchmark]: Toolchain (without parser) took 1223.68 ms. Allocated memory is still 141.0 MB. Free memory was 108.2 MB in the beginning and 75.5 MB in the end (delta: 32.7 MB). Peak memory consumption was 32.7 MB. Max. memory is 7.1 GB. [2019-01-18 15:06:35,959 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 ms. Allocated memory is still 141.0 MB. Free memory is still 109.7 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-01-18 15:06:35,960 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.87 ms. Allocated memory is still 141.0 MB. Free memory was 108.2 MB in the beginning and 105.8 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2019-01-18 15:06:35,961 INFO L168 Benchmark]: Boogie Preprocessor took 24.68 ms. Allocated memory is still 141.0 MB. Free memory was 105.8 MB in the beginning and 104.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-01-18 15:06:35,962 INFO L168 Benchmark]: RCFGBuilder took 758.75 ms. Allocated memory is still 141.0 MB. Free memory was 104.6 MB in the beginning and 86.9 MB in the end (delta: 17.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 7.1 GB. [2019-01-18 15:06:35,964 INFO L168 Benchmark]: Abstract Interpretation took 375.49 ms. Allocated memory is still 141.0 MB. Free memory was 86.9 MB in the beginning and 75.5 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. [2019-01-18 15:06:35,968 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 0.20 ms. Allocated memory is still 141.0 MB. Free memory is still 109.7 MB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 57.87 ms. Allocated memory is still 141.0 MB. Free memory was 108.2 MB in the beginning and 105.8 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 24.68 ms. Allocated memory is still 141.0 MB. Free memory was 105.8 MB in the beginning and 104.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 758.75 ms. Allocated memory is still 141.0 MB. Free memory was 104.6 MB in the beginning and 86.9 MB in the end (delta: 17.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 375.49 ms. Allocated memory is still 141.0 MB. Free memory was 86.9 MB in the beginning and 75.5 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 43]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L51-L52] modifies #valid; [L51-L53] ensures old(#valid)[ptr] == 0; [L51-L54] ensures #valid == old(#valid)[ptr := 1]; [L51-L52] modifies #valid; [L51-L53] ensures old(#valid)[ptr] == 0; [L51-L54] ensures #valid == old(#valid)[ptr := 1]; [L51-L52] modifies #valid; [L51-L53] ensures old(#valid)[ptr] == 0; [L51-L54] ensures #valid == old(#valid)[ptr := 1]; [L51-L52] modifies #valid; [L51-L53] ensures old(#valid)[ptr] == 0; [L51-L54] ensures #valid == old(#valid)[ptr := 1]; [L51-L52] modifies #valid; [L51-L53] ensures old(#valid)[ptr] == 0; [L51-L54] ensures #valid == old(#valid)[ptr := 1]; [L23] #memory_int[p1] := 0; [L24] #memory_int[p2] := 0; [L25] #memory_int[p3] := 0; [L26] #memory_int[p4] := 0; [L27] #memory_int[p5] := 0; [L43] assert #memory_int[p1] >= 0; - UnprovableResult [Line: 44]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L51-L52] modifies #valid; [L51-L53] ensures old(#valid)[ptr] == 0; [L51-L54] ensures #valid == old(#valid)[ptr := 1]; [L51-L52] modifies #valid; [L51-L53] ensures old(#valid)[ptr] == 0; [L51-L54] ensures #valid == old(#valid)[ptr := 1]; [L51-L52] modifies #valid; [L51-L53] ensures old(#valid)[ptr] == 0; [L51-L54] ensures #valid == old(#valid)[ptr := 1]; [L51-L52] modifies #valid; [L51-L53] ensures old(#valid)[ptr] == 0; [L51-L54] ensures #valid == old(#valid)[ptr := 1]; [L51-L52] modifies #valid; [L51-L53] ensures old(#valid)[ptr] == 0; [L51-L54] ensures #valid == old(#valid)[ptr := 1]; [L23] #memory_int[p1] := 0; [L24] #memory_int[p2] := 0; [L25] #memory_int[p3] := 0; [L26] #memory_int[p4] := 0; [L27] #memory_int[p5] := 0; [L43] assert #memory_int[p1] >= 0; [L44] assert #memory_int[p2] <= 0; - UnprovableResult [Line: 45]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L51-L52] modifies #valid; [L51-L53] ensures old(#valid)[ptr] == 0; [L51-L54] ensures #valid == old(#valid)[ptr := 1]; [L51-L52] modifies #valid; [L51-L53] ensures old(#valid)[ptr] == 0; [L51-L54] ensures #valid == old(#valid)[ptr := 1]; [L51-L52] modifies #valid; [L51-L53] ensures old(#valid)[ptr] == 0; [L51-L54] ensures #valid == old(#valid)[ptr := 1]; [L51-L52] modifies #valid; [L51-L53] ensures old(#valid)[ptr] == 0; [L51-L54] ensures #valid == old(#valid)[ptr := 1]; [L51-L52] modifies #valid; [L51-L53] ensures old(#valid)[ptr] == 0; [L51-L54] ensures #valid == old(#valid)[ptr := 1]; [L23] #memory_int[p1] := 0; [L24] #memory_int[p2] := 0; [L25] #memory_int[p3] := 0; [L26] #memory_int[p4] := 0; [L27] #memory_int[p5] := 0; [L43] assert #memory_int[p1] >= 0; [L44] assert #memory_int[p2] <= 0; [L45] assert #memory_int[p3] >= 0; - UnprovableResult [Line: 46]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L51-L52] modifies #valid; [L51-L53] ensures old(#valid)[ptr] == 0; [L51-L54] ensures #valid == old(#valid)[ptr := 1]; [L51-L52] modifies #valid; [L51-L53] ensures old(#valid)[ptr] == 0; [L51-L54] ensures #valid == old(#valid)[ptr := 1]; [L51-L52] modifies #valid; [L51-L53] ensures old(#valid)[ptr] == 0; [L51-L54] ensures #valid == old(#valid)[ptr := 1]; [L51-L52] modifies #valid; [L51-L53] ensures old(#valid)[ptr] == 0; [L51-L54] ensures #valid == old(#valid)[ptr := 1]; [L51-L52] modifies #valid; [L51-L53] ensures old(#valid)[ptr] == 0; [L51-L54] ensures #valid == old(#valid)[ptr := 1]; [L23] #memory_int[p1] := 0; [L24] #memory_int[p2] := 0; [L25] #memory_int[p3] := 0; [L26] #memory_int[p4] := 0; [L27] #memory_int[p5] := 0; [L43] assert #memory_int[p1] >= 0; [L44] assert #memory_int[p2] <= 0; [L45] assert #memory_int[p3] >= 0; [L46] assert #memory_int[p4] <= 0; - UnprovableResult [Line: 47]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L51-L52] modifies #valid; [L51-L53] ensures old(#valid)[ptr] == 0; [L51-L54] ensures #valid == old(#valid)[ptr := 1]; [L51-L52] modifies #valid; [L51-L53] ensures old(#valid)[ptr] == 0; [L51-L54] ensures #valid == old(#valid)[ptr := 1]; [L51-L52] modifies #valid; [L51-L53] ensures old(#valid)[ptr] == 0; [L51-L54] ensures #valid == old(#valid)[ptr := 1]; [L51-L52] modifies #valid; [L51-L53] ensures old(#valid)[ptr] == 0; [L51-L54] ensures #valid == old(#valid)[ptr := 1]; [L51-L52] modifies #valid; [L51-L53] ensures old(#valid)[ptr] == 0; [L51-L54] ensures #valid == old(#valid)[ptr := 1]; [L23] #memory_int[p1] := 0; [L24] #memory_int[p2] := 0; [L25] #memory_int[p3] := 0; [L26] #memory_int[p4] := 0; [L27] #memory_int[p5] := 0; [L43] assert #memory_int[p1] >= 0; [L44] assert #memory_int[p2] <= 0; [L45] assert #memory_int[p3] >= 0; [L46] assert #memory_int[p4] <= 0; [L47] assert #memory_int[p5] >= 0; RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...