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_oct.epf -i ../../../trunk/examples/programs/heapseparator/speedup-poc-dd-7-unlimited.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-df3cc4e-m [2019-01-11 11:59:13,783 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-11 11:59:13,785 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-11 11:59:13,797 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-11 11:59:13,798 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-11 11:59:13,799 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-11 11:59:13,800 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-11 11:59:13,802 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-11 11:59:13,804 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-11 11:59:13,805 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-11 11:59:13,805 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-11 11:59:13,806 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-11 11:59:13,807 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-11 11:59:13,808 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-11 11:59:13,809 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-11 11:59:13,809 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-11 11:59:13,810 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-11 11:59:13,812 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-11 11:59:13,814 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-11 11:59:13,816 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-11 11:59:13,817 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-11 11:59:13,818 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-11 11:59:13,821 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-11 11:59:13,821 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-11 11:59:13,821 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-11 11:59:13,822 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-11 11:59:13,823 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-11 11:59:13,824 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-11 11:59:13,825 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-11 11:59:13,826 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-11 11:59:13,826 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-11 11:59:13,827 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-11 11:59:13,827 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-11 11:59:13,827 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-11 11:59:13,828 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-11 11:59:13,829 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-11 11:59:13,829 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/array-bench/reach_32bit_oct.epf [2019-01-11 11:59:13,845 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-11 11:59:13,845 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-11 11:59:13,846 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2019-01-11 11:59:13,846 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2019-01-11 11:59:13,847 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-01-11 11:59:13,848 INFO L133 SettingsManager]: * User list type=DISABLED [2019-01-11 11:59:13,849 INFO L133 SettingsManager]: * Inline calls to unimplemented procedures=true [2019-01-11 11:59:13,849 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-01-11 11:59:13,849 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-01-11 11:59:13,849 INFO L133 SettingsManager]: * Underlying domain=OctagonDomain [2019-01-11 11:59:13,849 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2019-01-11 11:59:13,850 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-01-11 11:59:13,850 INFO L133 SettingsManager]: * Interval Domain=false [2019-01-11 11:59:13,851 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-11 11:59:13,851 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-11 11:59:13,851 INFO L133 SettingsManager]: * Use SBE=true [2019-01-11 11:59:13,851 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-11 11:59:13,852 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-11 11:59:13,853 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-11 11:59:13,853 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-11 11:59:13,854 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-11 11:59:13,854 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-11 11:59:13,854 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-11 11:59:13,855 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-11 11:59:13,855 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-11 11:59:13,855 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-11 11:59:13,855 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-11 11:59:13,855 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-11 11:59:13,856 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-11 11:59:13,856 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-11 11:59:13,856 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:8192 -smt2 -in -t:2000 [2019-01-11 11:59:13,856 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-11 11:59:13,856 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-11 11:59:13,857 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-11 11:59:13,857 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-01-11 11:59:13,857 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-11 11:59:13,857 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:8192 -smt2 -in [2019-01-11 11:59:13,857 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-01-11 11:59:13,858 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-01-11 11:59:13,902 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-11 11:59:13,915 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-11 11:59:13,921 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-11 11:59:13,923 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-01-11 11:59:13,923 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2019-01-11 11:59:13,924 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/heapseparator/speedup-poc-dd-7-unlimited.bpl [2019-01-11 11:59:13,924 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/heapseparator/speedup-poc-dd-7-unlimited.bpl' [2019-01-11 11:59:13,961 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-11 11:59:13,963 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-01-11 11:59:13,964 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-11 11:59:13,964 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-11 11:59:13,964 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-11 11:59:13,979 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "speedup-poc-dd-7-unlimited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.01 11:59:13" (1/1) ... [2019-01-11 11:59:13,991 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "speedup-poc-dd-7-unlimited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.01 11:59:13" (1/1) ... [2019-01-11 11:59:14,016 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-11 11:59:14,017 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-11 11:59:14,017 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-11 11:59:14,017 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-11 11:59:14,028 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "speedup-poc-dd-7-unlimited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.01 11:59:13" (1/1) ... [2019-01-11 11:59:14,028 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "speedup-poc-dd-7-unlimited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.01 11:59:13" (1/1) ... [2019-01-11 11:59:14,030 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "speedup-poc-dd-7-unlimited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.01 11:59:13" (1/1) ... [2019-01-11 11:59:14,030 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "speedup-poc-dd-7-unlimited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.01 11:59:13" (1/1) ... [2019-01-11 11:59:14,034 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "speedup-poc-dd-7-unlimited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.01 11:59:13" (1/1) ... [2019-01-11 11:59:14,038 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "speedup-poc-dd-7-unlimited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.01 11:59:13" (1/1) ... [2019-01-11 11:59:14,039 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "speedup-poc-dd-7-unlimited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.01 11:59:13" (1/1) ... [2019-01-11 11:59:14,041 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-11 11:59:14,041 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-11 11:59:14,041 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-11 11:59:14,041 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-11 11:59:14,042 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "speedup-poc-dd-7-unlimited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.01 11:59:13" (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:8192 -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:8192 -smt2 -in -t:2000 [2019-01-11 11:59:14,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-11 11:59:14,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-11 11:59:14,578 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-11 11:59:14,578 INFO L286 CfgBuilder]: Removed 17 assue(true) statements. [2019-01-11 11:59:14,581 INFO L202 PluginConnector]: Adding new model speedup-poc-dd-7-unlimited.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 11:59:14 BoogieIcfgContainer [2019-01-11 11:59:14,581 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-11 11:59:14,582 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-01-11 11:59:14,582 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-01-11 11:59:14,582 INFO L276 PluginConnector]: Abstract Interpretation initialized [2019-01-11 11:59:14,583 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "speedup-poc-dd-7-unlimited.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 11:59:14" (1/1) ... [2019-01-11 11:59:14,625 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2019-01-11 11:59:14,697 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-01-11 11:59:14,728 INFO L272 AbstractInterpreter]: Visited 23 different actions 23 times. Never merged. Never widened. Found 7 fixpoints after 7 different actions. Largest state had 0 variables. [2019-01-11 11:59:14,730 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-01-11 11:59:14,731 INFO L168 Benchmark]: Toolchain (without parser) took 768.68 ms. Allocated memory is still 140.5 MB. Free memory was 108.0 MB in the beginning and 84.8 MB in the end (delta: 23.3 MB). Peak memory consumption was 23.3 MB. Max. memory is 7.1 GB. [2019-01-11 11:59:14,733 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 140.5 MB. Free memory is still 109.3 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-01-11 11:59:14,734 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.23 ms. Allocated memory is still 140.5 MB. Free memory was 107.8 MB in the beginning and 105.4 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2019-01-11 11:59:14,735 INFO L168 Benchmark]: Boogie Preprocessor took 23.55 ms. Allocated memory is still 140.5 MB. Free memory was 105.4 MB in the beginning and 104.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. [2019-01-11 11:59:14,737 INFO L168 Benchmark]: RCFGBuilder took 540.17 ms. Allocated memory is still 140.5 MB. Free memory was 104.3 MB in the beginning and 91.8 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. [2019-01-11 11:59:14,738 INFO L168 Benchmark]: Abstract Interpretation took 148.28 ms. Allocated memory is still 140.5 MB. Free memory was 91.8 MB in the beginning and 84.8 MB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 7.1 GB. [2019-01-11 11:59:14,744 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 0.21 ms. Allocated memory is still 140.5 MB. Free memory is still 109.3 MB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 53.23 ms. Allocated memory is still 140.5 MB. Free memory was 107.8 MB in the beginning and 105.4 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 23.55 ms. Allocated memory is still 140.5 MB. Free memory was 105.4 MB in the beginning and 104.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 540.17 ms. Allocated memory is still 140.5 MB. Free memory was 104.3 MB in the beginning and 91.8 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 148.28 ms. Allocated memory is still 140.5 MB. Free memory was 91.8 MB in the beginning and 84.8 MB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 51]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L61-L62] modifies #valid; [L61-L63] ensures old(#valid)[ptr] == 0; [L61-L64] ensures #valid == old(#valid)[ptr := 1]; [L61-L62] modifies #valid; [L61-L63] ensures old(#valid)[ptr] == 0; [L61-L64] ensures #valid == old(#valid)[ptr := 1]; [L61-L62] modifies #valid; [L61-L63] ensures old(#valid)[ptr] == 0; [L61-L64] ensures #valid == old(#valid)[ptr := 1]; [L61-L62] modifies #valid; [L61-L63] ensures old(#valid)[ptr] == 0; [L61-L64] ensures #valid == old(#valid)[ptr := 1]; [L61-L62] modifies #valid; [L61-L63] ensures old(#valid)[ptr] == 0; [L61-L64] ensures #valid == old(#valid)[ptr := 1]; [L61-L62] modifies #valid; [L61-L63] ensures old(#valid)[ptr] == 0; [L61-L64] ensures #valid == old(#valid)[ptr := 1]; [L61-L62] modifies #valid; [L61-L63] ensures old(#valid)[ptr] == 0; [L61-L64] ensures #valid == old(#valid)[ptr := 1]; [L25] #memory_int[p1] := 0; [L26] #memory_int[p2] := 0; [L27] #memory_int[p3] := 0; [L28] #memory_int[p4] := 0; [L29] #memory_int[p5] := 0; [L30] #memory_int[p6] := 0; [L31] #memory_int[p7] := 0; [L51] assert #memory_int[p1] >= 0; - UnprovableResult [Line: 52]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L61-L62] modifies #valid; [L61-L63] ensures old(#valid)[ptr] == 0; [L61-L64] ensures #valid == old(#valid)[ptr := 1]; [L61-L62] modifies #valid; [L61-L63] ensures old(#valid)[ptr] == 0; [L61-L64] ensures #valid == old(#valid)[ptr := 1]; [L61-L62] modifies #valid; [L61-L63] ensures old(#valid)[ptr] == 0; [L61-L64] ensures #valid == old(#valid)[ptr := 1]; [L61-L62] modifies #valid; [L61-L63] ensures old(#valid)[ptr] == 0; [L61-L64] ensures #valid == old(#valid)[ptr := 1]; [L61-L62] modifies #valid; [L61-L63] ensures old(#valid)[ptr] == 0; [L61-L64] ensures #valid == old(#valid)[ptr := 1]; [L61-L62] modifies #valid; [L61-L63] ensures old(#valid)[ptr] == 0; [L61-L64] ensures #valid == old(#valid)[ptr := 1]; [L61-L62] modifies #valid; [L61-L63] ensures old(#valid)[ptr] == 0; [L61-L64] ensures #valid == old(#valid)[ptr := 1]; [L25] #memory_int[p1] := 0; [L26] #memory_int[p2] := 0; [L27] #memory_int[p3] := 0; [L28] #memory_int[p4] := 0; [L29] #memory_int[p5] := 0; [L30] #memory_int[p6] := 0; [L31] #memory_int[p7] := 0; [L51] assert #memory_int[p1] >= 0; [L52] assert #memory_int[p2] <= 0; - 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: [L61-L62] modifies #valid; [L61-L63] ensures old(#valid)[ptr] == 0; [L61-L64] ensures #valid == old(#valid)[ptr := 1]; [L61-L62] modifies #valid; [L61-L63] ensures old(#valid)[ptr] == 0; [L61-L64] ensures #valid == old(#valid)[ptr := 1]; [L61-L62] modifies #valid; [L61-L63] ensures old(#valid)[ptr] == 0; [L61-L64] ensures #valid == old(#valid)[ptr := 1]; [L61-L62] modifies #valid; [L61-L63] ensures old(#valid)[ptr] == 0; [L61-L64] ensures #valid == old(#valid)[ptr := 1]; [L61-L62] modifies #valid; [L61-L63] ensures old(#valid)[ptr] == 0; [L61-L64] ensures #valid == old(#valid)[ptr := 1]; [L61-L62] modifies #valid; [L61-L63] ensures old(#valid)[ptr] == 0; [L61-L64] ensures #valid == old(#valid)[ptr := 1]; [L61-L62] modifies #valid; [L61-L63] ensures old(#valid)[ptr] == 0; [L61-L64] ensures #valid == old(#valid)[ptr := 1]; [L25] #memory_int[p1] := 0; [L26] #memory_int[p2] := 0; [L27] #memory_int[p3] := 0; [L28] #memory_int[p4] := 0; [L29] #memory_int[p5] := 0; [L30] #memory_int[p6] := 0; [L31] #memory_int[p7] := 0; [L51] assert #memory_int[p1] >= 0; [L52] assert #memory_int[p2] <= 0; [L53] assert #memory_int[p3] >= 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: [L61-L62] modifies #valid; [L61-L63] ensures old(#valid)[ptr] == 0; [L61-L64] ensures #valid == old(#valid)[ptr := 1]; [L61-L62] modifies #valid; [L61-L63] ensures old(#valid)[ptr] == 0; [L61-L64] ensures #valid == old(#valid)[ptr := 1]; [L61-L62] modifies #valid; [L61-L63] ensures old(#valid)[ptr] == 0; [L61-L64] ensures #valid == old(#valid)[ptr := 1]; [L61-L62] modifies #valid; [L61-L63] ensures old(#valid)[ptr] == 0; [L61-L64] ensures #valid == old(#valid)[ptr := 1]; [L61-L62] modifies #valid; [L61-L63] ensures old(#valid)[ptr] == 0; [L61-L64] ensures #valid == old(#valid)[ptr := 1]; [L61-L62] modifies #valid; [L61-L63] ensures old(#valid)[ptr] == 0; [L61-L64] ensures #valid == old(#valid)[ptr := 1]; [L61-L62] modifies #valid; [L61-L63] ensures old(#valid)[ptr] == 0; [L61-L64] ensures #valid == old(#valid)[ptr := 1]; [L25] #memory_int[p1] := 0; [L26] #memory_int[p2] := 0; [L27] #memory_int[p3] := 0; [L28] #memory_int[p4] := 0; [L29] #memory_int[p5] := 0; [L30] #memory_int[p6] := 0; [L31] #memory_int[p7] := 0; [L51] assert #memory_int[p1] >= 0; [L52] assert #memory_int[p2] <= 0; [L53] assert #memory_int[p3] >= 0; [L54] assert #memory_int[p4] <= 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: [L61-L62] modifies #valid; [L61-L63] ensures old(#valid)[ptr] == 0; [L61-L64] ensures #valid == old(#valid)[ptr := 1]; [L61-L62] modifies #valid; [L61-L63] ensures old(#valid)[ptr] == 0; [L61-L64] ensures #valid == old(#valid)[ptr := 1]; [L61-L62] modifies #valid; [L61-L63] ensures old(#valid)[ptr] == 0; [L61-L64] ensures #valid == old(#valid)[ptr := 1]; [L61-L62] modifies #valid; [L61-L63] ensures old(#valid)[ptr] == 0; [L61-L64] ensures #valid == old(#valid)[ptr := 1]; [L61-L62] modifies #valid; [L61-L63] ensures old(#valid)[ptr] == 0; [L61-L64] ensures #valid == old(#valid)[ptr := 1]; [L61-L62] modifies #valid; [L61-L63] ensures old(#valid)[ptr] == 0; [L61-L64] ensures #valid == old(#valid)[ptr := 1]; [L61-L62] modifies #valid; [L61-L63] ensures old(#valid)[ptr] == 0; [L61-L64] ensures #valid == old(#valid)[ptr := 1]; [L25] #memory_int[p1] := 0; [L26] #memory_int[p2] := 0; [L27] #memory_int[p3] := 0; [L28] #memory_int[p4] := 0; [L29] #memory_int[p5] := 0; [L30] #memory_int[p6] := 0; [L31] #memory_int[p7] := 0; [L51] assert #memory_int[p1] >= 0; [L52] assert #memory_int[p2] <= 0; [L53] assert #memory_int[p3] >= 0; [L54] assert #memory_int[p4] <= 0; [L55] assert #memory_int[p5] >= 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: [L61-L62] modifies #valid; [L61-L63] ensures old(#valid)[ptr] == 0; [L61-L64] ensures #valid == old(#valid)[ptr := 1]; [L61-L62] modifies #valid; [L61-L63] ensures old(#valid)[ptr] == 0; [L61-L64] ensures #valid == old(#valid)[ptr := 1]; [L61-L62] modifies #valid; [L61-L63] ensures old(#valid)[ptr] == 0; [L61-L64] ensures #valid == old(#valid)[ptr := 1]; [L61-L62] modifies #valid; [L61-L63] ensures old(#valid)[ptr] == 0; [L61-L64] ensures #valid == old(#valid)[ptr := 1]; [L61-L62] modifies #valid; [L61-L63] ensures old(#valid)[ptr] == 0; [L61-L64] ensures #valid == old(#valid)[ptr := 1]; [L61-L62] modifies #valid; [L61-L63] ensures old(#valid)[ptr] == 0; [L61-L64] ensures #valid == old(#valid)[ptr := 1]; [L61-L62] modifies #valid; [L61-L63] ensures old(#valid)[ptr] == 0; [L61-L64] ensures #valid == old(#valid)[ptr := 1]; [L25] #memory_int[p1] := 0; [L26] #memory_int[p2] := 0; [L27] #memory_int[p3] := 0; [L28] #memory_int[p4] := 0; [L29] #memory_int[p5] := 0; [L30] #memory_int[p6] := 0; [L31] #memory_int[p7] := 0; [L51] assert #memory_int[p1] >= 0; [L52] assert #memory_int[p2] <= 0; [L53] assert #memory_int[p3] >= 0; [L54] assert #memory_int[p4] <= 0; [L55] assert #memory_int[p5] >= 0; [L56] assert #memory_int[p6] <= 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: [L61-L62] modifies #valid; [L61-L63] ensures old(#valid)[ptr] == 0; [L61-L64] ensures #valid == old(#valid)[ptr := 1]; [L61-L62] modifies #valid; [L61-L63] ensures old(#valid)[ptr] == 0; [L61-L64] ensures #valid == old(#valid)[ptr := 1]; [L61-L62] modifies #valid; [L61-L63] ensures old(#valid)[ptr] == 0; [L61-L64] ensures #valid == old(#valid)[ptr := 1]; [L61-L62] modifies #valid; [L61-L63] ensures old(#valid)[ptr] == 0; [L61-L64] ensures #valid == old(#valid)[ptr := 1]; [L61-L62] modifies #valid; [L61-L63] ensures old(#valid)[ptr] == 0; [L61-L64] ensures #valid == old(#valid)[ptr := 1]; [L61-L62] modifies #valid; [L61-L63] ensures old(#valid)[ptr] == 0; [L61-L64] ensures #valid == old(#valid)[ptr := 1]; [L61-L62] modifies #valid; [L61-L63] ensures old(#valid)[ptr] == 0; [L61-L64] ensures #valid == old(#valid)[ptr := 1]; [L25] #memory_int[p1] := 0; [L26] #memory_int[p2] := 0; [L27] #memory_int[p3] := 0; [L28] #memory_int[p4] := 0; [L29] #memory_int[p5] := 0; [L30] #memory_int[p6] := 0; [L31] #memory_int[p7] := 0; [L51] assert #memory_int[p1] >= 0; [L52] assert #memory_int[p2] <= 0; [L53] assert #memory_int[p3] >= 0; [L54] assert #memory_int[p4] <= 0; [L55] assert #memory_int[p5] >= 0; [L56] assert #memory_int[p6] <= 0; [L57] assert #memory_int[p7] >= 0; RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...