java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AbstractInterpretationCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf -i ../../../trunk/examples/svcomp/loops/sum_array_true-unreach-call.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 02:42:27,819 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 02:42:27,821 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 02:42:27,834 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 02:42:27,835 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 02:42:27,836 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 02:42:27,837 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 02:42:27,839 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 02:42:27,841 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 02:42:27,842 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 02:42:27,843 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 02:42:27,844 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 02:42:27,845 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 02:42:27,846 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 02:42:27,847 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 02:42:27,848 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 02:42:27,849 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 02:42:27,851 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 02:42:27,853 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 02:42:27,855 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 02:42:27,856 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 02:42:27,858 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 02:42:27,861 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 02:42:27,861 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 02:42:27,862 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 02:42:27,866 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 02:42:27,867 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 02:42:27,868 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 02:42:27,873 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 02:42:27,874 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 02:42:27,874 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 02:42:27,875 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-15 02:42:27,875 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-15 02:42:27,876 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-15 02:42:27,879 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-15 02:42:27,880 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-15 02:42:27,880 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf [2018-09-15 02:42:27,896 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 02:42:27,896 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 02:42:27,897 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 02:42:27,898 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 02:42:27,898 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 02:42:27,898 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 02:42:27,898 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-15 02:42:27,898 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 02:42:27,899 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-09-15 02:42:27,899 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 02:42:27,899 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 02:42:27,899 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-15 02:42:27,900 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 02:42:27,900 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 02:42:27,901 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 02:42:27,901 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 02:42:27,901 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 02:42:27,901 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 02:42:27,901 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 02:42:27,902 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 02:42:27,902 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 02:42:27,902 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 02:42:27,902 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 02:42:27,903 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 02:42:27,903 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 02:42:27,903 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 02:42:27,903 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 02:42:27,903 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 02:42:27,904 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 02:42:27,904 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 02:42:27,904 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 02:42:27,904 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 02:42:27,904 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 02:42:27,905 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 02:42:27,957 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 02:42:27,970 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 02:42:27,974 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 02:42:27,976 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 02:42:27,977 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 02:42:27,977 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/sum_array_true-unreach-call.i [2018-09-15 02:42:28,327 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2db21c7bf/20eec6a53fb04484b18fdefc940123f0/FLAG7dbb0a29e [2018-09-15 02:42:28,503 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 02:42:28,504 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/sum_array_true-unreach-call.i [2018-09-15 02:42:28,514 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2db21c7bf/20eec6a53fb04484b18fdefc940123f0/FLAG7dbb0a29e [2018-09-15 02:42:28,539 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2db21c7bf/20eec6a53fb04484b18fdefc940123f0 [2018-09-15 02:42:28,552 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 02:42:28,555 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 02:42:28,556 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 02:42:28,556 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 02:42:28,563 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 02:42:28,564 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 02:42:28" (1/1) ... [2018-09-15 02:42:28,567 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a895004 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 02:42:28, skipping insertion in model container [2018-09-15 02:42:28,567 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 02:42:28" (1/1) ... [2018-09-15 02:42:28,580 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 02:42:28,795 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 02:42:28,812 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 02:42:28,828 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 02:42:28,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 02:42:28 WrapperNode [2018-09-15 02:42:28,842 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 02:42:28,843 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 02:42:28,843 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 02:42:28,843 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 02:42:28,852 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 02:42:28" (1/1) ... [2018-09-15 02:42:28,860 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 02:42:28" (1/1) ... [2018-09-15 02:42:28,866 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 02:42:28,866 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 02:42:28,867 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 02:42:28,867 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 02:42:28,877 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 02:42:28" (1/1) ... [2018-09-15 02:42:28,877 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 02:42:28" (1/1) ... [2018-09-15 02:42:28,878 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 02:42:28" (1/1) ... [2018-09-15 02:42:28,879 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 02:42:28" (1/1) ... [2018-09-15 02:42:28,881 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 02:42:28" (1/1) ... [2018-09-15 02:42:28,888 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 02:42:28" (1/1) ... [2018-09-15 02:42:28,889 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 02:42:28" (1/1) ... [2018-09-15 02:42:28,891 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 02:42:28,892 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 02:42:28,892 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 02:42:28,892 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 02:42:28,893 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 02:42:28" (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 [2018-09-15 02:42:28,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 02:42:28,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 02:42:28,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 02:42:28,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 02:42:28,960 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 02:42:28,961 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 02:42:28,961 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-15 02:42:28,961 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-15 02:42:29,454 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 02:42:29,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 02:42:29 BoogieIcfgContainer [2018-09-15 02:42:29,455 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 02:42:29,455 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2018-09-15 02:42:29,456 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2018-09-15 02:42:29,456 INFO L276 PluginConnector]: Abstract Interpretation initialized [2018-09-15 02:42:29,457 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 02:42:29" (1/1) ... [2018-09-15 02:42:29,506 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 02:42:29,586 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 02:42:29,978 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-09-15 02:42:30,001 INFO L272 AbstractInterpreter]: Visited 43 different actions 498 times. Merged at 23 different actions 252 times. Widened at 4 different actions 32 times. Found 77 fixpoints after 10 different actions. Largest state had 13 variables. [2018-09-15 02:42:30,004 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2018-09-15 02:42:30,005 INFO L168 Benchmark]: Toolchain (without parser) took 1452.71 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 748.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -754.9 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-09-15 02:42:30,007 INFO L168 Benchmark]: CDTParser took 0.19 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. [2018-09-15 02:42:30,008 INFO L168 Benchmark]: CACSL2BoogieTranslator took 286.09 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: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-09-15 02:42:30,010 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.59 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-15 02:42:30,010 INFO L168 Benchmark]: Boogie Preprocessor took 25.13 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-15 02:42:30,011 INFO L168 Benchmark]: RCFGBuilder took 562.84 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 748.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -795.5 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. [2018-09-15 02:42:30,012 INFO L168 Benchmark]: Abstract Interpretation took 548.70 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 30.0 MB). Peak memory consumption was 30.0 MB. Max. memory is 7.1 GB. [2018-09-15 02:42:30,017 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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. * CACSL2BoogieTranslator took 286.09 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: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 23.59 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.13 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 562.84 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 748.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -795.5 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 548.70 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 30.0 MB). Peak memory consumption was 30.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 6]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: abstract domain could reach this error location. Possible FailurePath: [L13] unsigned int M = __VERIFIER_nondet_uint(); [L14] int A[M], B[M], C[M]; [L15] unsigned int i; [L16] i=0 [L16] COND FALSE !(i