./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_01-priv_nr_true.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations DEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_01-priv_nr_true.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2f12d466eb2f537fd698a609dad75de92993414755aa8aadb35a91de87d65611 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations DEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 12:28:00,401 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 12:28:00,403 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 12:28:00,444 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 12:28:00,445 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 12:28:00,448 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 12:28:00,449 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 12:28:00,453 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 12:28:00,454 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 12:28:00,458 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 12:28:00,459 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 12:28:00,462 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 12:28:00,462 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 12:28:00,464 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 12:28:00,465 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 12:28:00,469 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 12:28:00,470 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 12:28:00,472 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 12:28:00,473 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 12:28:00,478 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 12:28:00,479 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 12:28:00,480 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 12:28:00,481 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 12:28:00,482 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 12:28:00,487 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 12:28:00,488 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 12:28:00,488 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 12:28:00,489 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 12:28:00,490 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 12:28:00,491 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 12:28:00,491 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 12:28:00,492 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 12:28:00,492 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 12:28:00,493 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 12:28:00,494 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 12:28:00,494 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 12:28:00,494 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 12:28:00,495 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 12:28:00,495 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 12:28:00,496 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 12:28:00,496 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 12:28:00,498 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 12:28:00,528 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 12:28:00,528 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 12:28:00,529 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 12:28:00,529 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 12:28:00,530 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 12:28:00,530 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 12:28:00,531 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 12:28:00,531 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 12:28:00,531 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 12:28:00,531 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 12:28:00,532 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 12:28:00,532 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 12:28:00,532 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 12:28:00,533 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 12:28:00,533 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 12:28:00,533 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 12:28:00,533 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 12:28:00,533 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 12:28:00,534 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 12:28:00,534 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 12:28:00,534 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 12:28:00,534 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 12:28:00,534 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 12:28:00,535 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 12:28:00,535 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 12:28:00,535 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 12:28:00,535 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 12:28:00,535 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 12:28:00,536 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 12:28:00,536 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 12:28:00,536 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 12:28:00,536 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 12:28:00,536 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 12:28:00,537 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 12:28:00,537 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 12:28:00,537 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 12:28:00,537 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 12:28:00,537 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f12d466eb2f537fd698a609dad75de92993414755aa8aadb35a91de87d65611 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> DEFORE [2023-08-30 12:28:00,849 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 12:28:00,872 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 12:28:00,875 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 12:28:00,875 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 12:28:00,876 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 12:28:00,877 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_01-priv_nr_true.i [2023-08-30 12:28:02,008 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 12:28:02,278 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 12:28:02,285 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_01-priv_nr_true.i [2023-08-30 12:28:02,304 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a2ad5cc0/c558f20289104990af7684f89c0afb5f/FLAG11da90f81 [2023-08-30 12:28:02,324 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a2ad5cc0/c558f20289104990af7684f89c0afb5f [2023-08-30 12:28:02,326 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 12:28:02,327 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 12:28:02,330 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 12:28:02,330 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 12:28:02,333 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 12:28:02,334 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 12:28:02" (1/1) ... [2023-08-30 12:28:02,336 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bb99046 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:28:02, skipping insertion in model container [2023-08-30 12:28:02,336 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 12:28:02" (1/1) ... [2023-08-30 12:28:02,341 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 12:28:02,392 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 12:28:02,557 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_01-priv_nr_true.i[1084,1097] [2023-08-30 12:28:02,716 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 12:28:02,728 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 12:28:02,740 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_01-priv_nr_true.i[1084,1097] [2023-08-30 12:28:02,772 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 12:28:02,806 INFO L208 MainTranslator]: Completed translation [2023-08-30 12:28:02,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:28:02 WrapperNode [2023-08-30 12:28:02,807 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 12:28:02,807 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 12:28:02,808 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 12:28:02,808 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 12:28:02,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:28:02" (1/1) ... [2023-08-30 12:28:02,845 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:28:02" (1/1) ... [2023-08-30 12:28:02,861 INFO L138 Inliner]: procedures = 162, calls = 24, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 88 [2023-08-30 12:28:02,863 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 12:28:02,864 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 12:28:02,864 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 12:28:02,864 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 12:28:02,872 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:28:02" (1/1) ... [2023-08-30 12:28:02,872 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:28:02" (1/1) ... [2023-08-30 12:28:02,880 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:28:02" (1/1) ... [2023-08-30 12:28:02,881 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:28:02" (1/1) ... [2023-08-30 12:28:02,896 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:28:02" (1/1) ... [2023-08-30 12:28:02,902 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:28:02" (1/1) ... [2023-08-30 12:28:02,904 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:28:02" (1/1) ... [2023-08-30 12:28:02,906 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:28:02" (1/1) ... [2023-08-30 12:28:02,909 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 12:28:02,917 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 12:28:02,917 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 12:28:02,917 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 12:28:02,918 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:28:02" (1/1) ... [2023-08-30 12:28:02,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 12:28:02,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 12:28:02,954 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-30 12:28:03,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 12:28:03,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 12:28:03,002 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 12:28:03,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 12:28:03,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 12:28:03,003 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-30 12:28:03,003 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-30 12:28:03,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 12:28:03,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 12:28:03,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 12:28:03,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 12:28:02,996 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-30 12:28:03,015 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 12:28:03,154 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 12:28:03,156 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 12:28:03,315 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 12:28:03,321 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 12:28:03,322 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 12:28:03,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 12:28:03 BoogieIcfgContainer [2023-08-30 12:28:03,323 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 12:28:03,325 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 12:28:03,325 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 12:28:03,328 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 12:28:03,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 12:28:02" (1/3) ... [2023-08-30 12:28:03,329 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28253c6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 12:28:03, skipping insertion in model container [2023-08-30 12:28:03,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:28:02" (2/3) ... [2023-08-30 12:28:03,329 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28253c6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 12:28:03, skipping insertion in model container [2023-08-30 12:28:03,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 12:28:03" (3/3) ... [2023-08-30 12:28:03,331 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_01-priv_nr_true.i [2023-08-30 12:28:03,337 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 12:28:03,346 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 12:28:03,347 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-08-30 12:28:03,347 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 12:28:03,425 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-30 12:28:03,440 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalArgumentException: No enum constant de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.preferences.TraceAbstractionPreferenceInitializer.InsufficientError.DEFORE at java.base/java.lang.Enum.valueOf(Enum.java:240) at de.uni_freiburg.informatik.ultimate.core.preferences.RcpPreferenceProvider.getEnum(RcpPreferenceProvider.java:117) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.preferences.TAPreferences.insufficientThreadErrorsVsProgramErrors(TAPreferences.java:218) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.partitionErrorLocations(TraceAbstractionStarter.java:394) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:280) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-08-30 12:28:03,446 INFO L158 Benchmark]: Toolchain (without parser) took 1117.76ms. Allocated memory is still 83.9MB. Free memory was 60.4MB in the beginning and 44.0MB in the end (delta: 16.5MB). Peak memory consumption was 16.7MB. Max. memory is 16.1GB. [2023-08-30 12:28:03,446 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 62.9MB. Free memory is still 40.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 12:28:03,447 INFO L158 Benchmark]: CACSL2BoogieTranslator took 476.92ms. Allocated memory is still 83.9MB. Free memory was 60.2MB in the beginning and 41.2MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-08-30 12:28:03,448 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.77ms. Allocated memory is still 83.9MB. Free memory was 41.2MB in the beginning and 39.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 12:28:03,449 INFO L158 Benchmark]: Boogie Preprocessor took 52.29ms. Allocated memory is still 83.9MB. Free memory was 39.1MB in the beginning and 37.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 12:28:03,449 INFO L158 Benchmark]: RCFGBuilder took 406.73ms. Allocated memory is still 83.9MB. Free memory was 37.6MB in the beginning and 51.3MB in the end (delta: -13.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 12:28:03,450 INFO L158 Benchmark]: TraceAbstraction took 119.23ms. Allocated memory is still 83.9MB. Free memory was 50.3MB in the beginning and 44.0MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-08-30 12:28:03,457 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 62.9MB. Free memory is still 40.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 476.92ms. Allocated memory is still 83.9MB. Free memory was 60.2MB in the beginning and 41.2MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.77ms. Allocated memory is still 83.9MB. Free memory was 41.2MB in the beginning and 39.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.29ms. Allocated memory is still 83.9MB. Free memory was 39.1MB in the beginning and 37.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 406.73ms. Allocated memory is still 83.9MB. Free memory was 37.6MB in the beginning and 51.3MB in the end (delta: -13.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * TraceAbstraction took 119.23ms. Allocated memory is still 83.9MB. Free memory was 50.3MB in the beginning and 44.0MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: IllegalArgumentException: No enum constant de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.preferences.TraceAbstractionPreferenceInitializer.InsufficientError.DEFORE de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalArgumentException: No enum constant de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.preferences.TraceAbstractionPreferenceInitializer.InsufficientError.DEFORE: java.base/java.lang.Enum.valueOf(Enum.java:240) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-08-30 12:28:03,485 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_01-priv_nr_true.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2f12d466eb2f537fd698a609dad75de92993414755aa8aadb35a91de87d65611 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations DEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 12:28:05,423 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 12:28:05,426 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 12:28:05,472 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 12:28:05,474 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 12:28:05,477 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 12:28:05,479 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 12:28:05,482 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 12:28:05,484 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 12:28:05,488 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 12:28:05,489 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 12:28:05,491 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 12:28:05,492 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 12:28:05,493 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 12:28:05,494 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 12:28:05,501 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 12:28:05,501 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 12:28:05,502 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 12:28:05,504 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 12:28:05,516 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 12:28:05,519 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 12:28:05,520 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 12:28:05,521 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 12:28:05,521 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 12:28:05,526 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 12:28:05,528 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 12:28:05,529 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 12:28:05,530 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 12:28:05,531 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 12:28:05,532 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 12:28:05,532 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 12:28:05,537 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 12:28:05,539 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 12:28:05,540 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 12:28:05,541 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 12:28:05,541 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 12:28:05,542 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 12:28:05,542 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 12:28:05,542 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 12:28:05,543 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 12:28:05,544 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 12:28:05,545 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf [2023-08-30 12:28:05,580 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 12:28:05,580 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 12:28:05,581 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 12:28:05,581 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 12:28:05,582 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 12:28:05,582 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 12:28:05,583 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 12:28:05,583 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 12:28:05,583 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 12:28:05,583 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 12:28:05,584 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 12:28:05,584 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 12:28:05,584 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 12:28:05,585 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 12:28:05,585 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 12:28:05,585 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 12:28:05,585 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 12:28:05,585 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-08-30 12:28:05,586 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2023-08-30 12:28:05,586 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 12:28:05,586 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-08-30 12:28:05,586 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 12:28:05,586 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 12:28:05,586 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 12:28:05,587 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 12:28:05,587 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 12:28:05,587 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 12:28:05,587 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 12:28:05,587 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 12:28:05,588 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 12:28:05,588 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 12:28:05,588 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 12:28:05,588 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2023-08-30 12:28:05,588 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-08-30 12:28:05,589 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 12:28:05,589 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 12:28:05,589 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 12:28:05,589 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 12:28:05,589 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2023-08-30 12:28:05,590 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 12:28:05,590 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f12d466eb2f537fd698a609dad75de92993414755aa8aadb35a91de87d65611 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> DEFORE [2023-08-30 12:28:05,877 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 12:28:05,896 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 12:28:05,898 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 12:28:05,899 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 12:28:05,899 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 12:28:05,901 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_01-priv_nr_true.i [2023-08-30 12:28:07,081 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 12:28:07,359 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 12:28:07,360 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_01-priv_nr_true.i [2023-08-30 12:28:07,380 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f1f55bbc/944141d32f114fcfacfad3a264905b94/FLAG6a46f80de [2023-08-30 12:28:07,394 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f1f55bbc/944141d32f114fcfacfad3a264905b94 [2023-08-30 12:28:07,396 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 12:28:07,397 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 12:28:07,398 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 12:28:07,398 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 12:28:07,401 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 12:28:07,402 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 12:28:07" (1/1) ... [2023-08-30 12:28:07,402 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f19452 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:28:07, skipping insertion in model container [2023-08-30 12:28:07,406 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 12:28:07" (1/1) ... [2023-08-30 12:28:07,412 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 12:28:07,443 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 12:28:07,563 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_01-priv_nr_true.i[1084,1097] [2023-08-30 12:28:07,720 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 12:28:07,738 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 12:28:07,752 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_01-priv_nr_true.i[1084,1097] [2023-08-30 12:28:07,790 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 12:28:07,836 INFO L208 MainTranslator]: Completed translation [2023-08-30 12:28:07,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:28:07 WrapperNode [2023-08-30 12:28:07,837 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 12:28:07,838 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 12:28:07,838 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 12:28:07,838 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 12:28:07,844 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:28:07" (1/1) ... [2023-08-30 12:28:07,874 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:28:07" (1/1) ... [2023-08-30 12:28:07,907 INFO L138 Inliner]: procedures = 166, calls = 24, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 89 [2023-08-30 12:28:07,907 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 12:28:07,908 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 12:28:07,908 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 12:28:07,908 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 12:28:07,915 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:28:07" (1/1) ... [2023-08-30 12:28:07,916 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:28:07" (1/1) ... [2023-08-30 12:28:07,922 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:28:07" (1/1) ... [2023-08-30 12:28:07,922 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:28:07" (1/1) ... [2023-08-30 12:28:07,942 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:28:07" (1/1) ... [2023-08-30 12:28:07,949 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:28:07" (1/1) ... [2023-08-30 12:28:07,952 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:28:07" (1/1) ... [2023-08-30 12:28:07,953 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:28:07" (1/1) ... [2023-08-30 12:28:07,956 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 12:28:07,957 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 12:28:07,957 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 12:28:07,957 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 12:28:07,958 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:28:07" (1/1) ... [2023-08-30 12:28:07,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 12:28:07,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 12:28:07,986 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-30 12:28:07,996 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-30 12:28:08,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-08-30 12:28:08,021 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 12:28:08,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 12:28:08,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 12:28:08,022 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-30 12:28:08,022 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-30 12:28:08,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 12:28:08,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-08-30 12:28:08,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-08-30 12:28:08,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-08-30 12:28:08,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 12:28:08,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 12:28:08,024 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 12:28:08,186 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 12:28:08,188 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 12:28:08,463 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 12:28:08,469 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 12:28:08,470 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 12:28:08,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 12:28:08 BoogieIcfgContainer [2023-08-30 12:28:08,474 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 12:28:08,477 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 12:28:08,478 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 12:28:08,481 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 12:28:08,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 12:28:07" (1/3) ... [2023-08-30 12:28:08,482 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2420d971 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 12:28:08, skipping insertion in model container [2023-08-30 12:28:08,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:28:07" (2/3) ... [2023-08-30 12:28:08,483 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2420d971 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 12:28:08, skipping insertion in model container [2023-08-30 12:28:08,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 12:28:08" (3/3) ... [2023-08-30 12:28:08,484 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_01-priv_nr_true.i [2023-08-30 12:28:08,491 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 12:28:08,500 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 12:28:08,500 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-08-30 12:28:08,500 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 12:28:08,584 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-30 12:28:08,590 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalArgumentException: No enum constant de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.preferences.TraceAbstractionPreferenceInitializer.InsufficientError.DEFORE at java.base/java.lang.Enum.valueOf(Enum.java:240) at de.uni_freiburg.informatik.ultimate.core.preferences.RcpPreferenceProvider.getEnum(RcpPreferenceProvider.java:117) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.preferences.TAPreferences.insufficientThreadErrorsVsProgramErrors(TAPreferences.java:218) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.partitionErrorLocations(TraceAbstractionStarter.java:394) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:280) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-08-30 12:28:08,598 INFO L158 Benchmark]: Toolchain (without parser) took 1199.87ms. Allocated memory was 73.4MB in the beginning and 100.7MB in the end (delta: 27.3MB). Free memory was 50.4MB in the beginning and 54.0MB in the end (delta: -3.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-08-30 12:28:08,598 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 73.4MB. Free memory is still 51.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 12:28:08,599 INFO L158 Benchmark]: CACSL2BoogieTranslator took 439.41ms. Allocated memory is still 73.4MB. Free memory was 50.4MB in the beginning and 30.2MB in the end (delta: 20.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-08-30 12:28:08,600 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.46ms. Allocated memory was 73.4MB in the beginning and 100.7MB in the end (delta: 27.3MB). Free memory was 30.0MB in the beginning and 80.0MB in the end (delta: -50.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-08-30 12:28:08,600 INFO L158 Benchmark]: Boogie Preprocessor took 48.37ms. Allocated memory is still 100.7MB. Free memory was 80.0MB in the beginning and 78.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 12:28:08,601 INFO L158 Benchmark]: RCFGBuilder took 517.12ms. Allocated memory is still 100.7MB. Free memory was 78.0MB in the beginning and 62.4MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-08-30 12:28:08,602 INFO L158 Benchmark]: TraceAbstraction took 118.39ms. Allocated memory is still 100.7MB. Free memory was 61.8MB in the beginning and 54.0MB in the end (delta: 7.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-08-30 12:28:08,609 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 73.4MB. Free memory is still 51.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 439.41ms. Allocated memory is still 73.4MB. Free memory was 50.4MB in the beginning and 30.2MB in the end (delta: 20.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.46ms. Allocated memory was 73.4MB in the beginning and 100.7MB in the end (delta: 27.3MB). Free memory was 30.0MB in the beginning and 80.0MB in the end (delta: -50.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.37ms. Allocated memory is still 100.7MB. Free memory was 80.0MB in the beginning and 78.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 517.12ms. Allocated memory is still 100.7MB. Free memory was 78.0MB in the beginning and 62.4MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 118.39ms. Allocated memory is still 100.7MB. Free memory was 61.8MB in the beginning and 54.0MB in the end (delta: 7.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: IllegalArgumentException: No enum constant de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.preferences.TraceAbstractionPreferenceInitializer.InsufficientError.DEFORE de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalArgumentException: No enum constant de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.preferences.TraceAbstractionPreferenceInitializer.InsufficientError.DEFORE: java.base/java.lang.Enum.valueOf(Enum.java:240) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-08-30 12:28:08,632 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: IllegalArgumentException: No enum constant de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.preferences.TraceAbstractionPreferenceInitializer.InsufficientError.DEFORE