./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/pthread-wmm/mix026.oepc.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races 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/pthread-wmm/mix026.oepc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-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 ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a107688f8a9743f96e4ba7fbbac745d7f444b48f461db6b6c74848593b202e05 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-28 19:44:44,344 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-28 19:44:44,347 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-28 19:44:44,390 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-28 19:44:44,392 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-28 19:44:44,395 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-28 19:44:44,397 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-28 19:44:44,399 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-28 19:44:44,401 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-28 19:44:44,405 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-28 19:44:44,406 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-28 19:44:44,408 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-28 19:44:44,409 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-28 19:44:44,410 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-28 19:44:44,411 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-28 19:44:44,416 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-28 19:44:44,417 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-28 19:44:44,419 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-28 19:44:44,420 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-28 19:44:44,425 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-28 19:44:44,426 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-28 19:44:44,427 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-28 19:44:44,427 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-28 19:44:44,428 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-28 19:44:44,434 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-28 19:44:44,435 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-28 19:44:44,435 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-28 19:44:44,436 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-28 19:44:44,437 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-28 19:44:44,438 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-28 19:44:44,438 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-28 19:44:44,443 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-28 19:44:44,444 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-28 19:44:44,446 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-28 19:44:44,446 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-28 19:44:44,447 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-28 19:44:44,447 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-28 19:44:44,447 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-28 19:44:44,447 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-28 19:44:44,448 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-28 19:44:44,449 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-28 19:44:44,450 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-28 19:44:44,490 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-28 19:44:44,490 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-28 19:44:44,492 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-28 19:44:44,492 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-28 19:44:44,493 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-28 19:44:44,493 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-28 19:44:44,493 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-28 19:44:44,493 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-28 19:44:44,494 INFO L138 SettingsManager]: * Use SBE=true [2023-08-28 19:44:44,494 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-28 19:44:44,495 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-28 19:44:44,495 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-28 19:44:44,495 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-28 19:44:44,495 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-28 19:44:44,495 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-28 19:44:44,496 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-28 19:44:44,496 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-28 19:44:44,496 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-28 19:44:44,496 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-28 19:44:44,496 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-28 19:44:44,497 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-28 19:44:44,497 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-28 19:44:44,497 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-28 19:44:44,497 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-28 19:44:44,497 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-28 19:44:44,498 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-28 19:44:44,498 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-28 19:44:44,498 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-28 19:44:44,498 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-28 19:44:44,498 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-28 19:44:44,499 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-28 19:44:44,499 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-28 19:44:44,499 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-28 19:44:44,499 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-28 19:44:44,499 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-28 19:44:44,500 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-28 19:44:44,500 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-28 19:44:44,500 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a107688f8a9743f96e4ba7fbbac745d7f444b48f461db6b6c74848593b202e05 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-28 19:44:44,752 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-28 19:44:44,768 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-28 19:44:44,770 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-28 19:44:44,771 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-28 19:44:44,771 INFO L275 PluginConnector]: CDTParser initialized [2023-08-28 19:44:44,773 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix026.oepc.i [2023-08-28 19:44:46,037 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-28 19:44:46,293 INFO L351 CDTParser]: Found 1 translation units. [2023-08-28 19:44:46,294 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix026.oepc.i [2023-08-28 19:44:46,305 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe3894375/341bf34ab4224b99a4978131af1bc94b/FLAGdfd01f79f [2023-08-28 19:44:46,330 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe3894375/341bf34ab4224b99a4978131af1bc94b [2023-08-28 19:44:46,333 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-28 19:44:46,334 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-28 19:44:46,335 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-28 19:44:46,335 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-28 19:44:46,338 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-28 19:44:46,338 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.08 07:44:46" (1/1) ... [2023-08-28 19:44:46,340 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4674959 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 07:44:46, skipping insertion in model container [2023-08-28 19:44:46,340 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.08 07:44:46" (1/1) ... [2023-08-28 19:44:46,345 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-28 19:44:46,395 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-28 19:44:46,578 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix026.oepc.i[945,958] [2023-08-28 19:44:46,851 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-28 19:44:46,866 INFO L203 MainTranslator]: Completed pre-run [2023-08-28 19:44:46,879 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix026.oepc.i[945,958] [2023-08-28 19:44:46,967 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-28 19:44:47,020 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-28 19:44:47,020 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-28 19:44:47,026 INFO L208 MainTranslator]: Completed translation [2023-08-28 19:44:47,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 07:44:47 WrapperNode [2023-08-28 19:44:47,026 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-28 19:44:47,027 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-28 19:44:47,028 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-28 19:44:47,028 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-28 19:44:47,034 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 07:44:47" (1/1) ... [2023-08-28 19:44:47,067 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 07:44:47" (1/1) ... [2023-08-28 19:44:47,117 INFO L138 Inliner]: procedures = 177, calls = 69, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 519 [2023-08-28 19:44:47,124 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-28 19:44:47,125 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-28 19:44:47,126 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-28 19:44:47,126 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-28 19:44:47,134 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 07:44:47" (1/1) ... [2023-08-28 19:44:47,134 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 07:44:47" (1/1) ... [2023-08-28 19:44:47,143 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 07:44:47" (1/1) ... [2023-08-28 19:44:47,144 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 07:44:47" (1/1) ... [2023-08-28 19:44:47,174 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 07:44:47" (1/1) ... [2023-08-28 19:44:47,184 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 07:44:47" (1/1) ... [2023-08-28 19:44:47,192 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 07:44:47" (1/1) ... [2023-08-28 19:44:47,204 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 07:44:47" (1/1) ... [2023-08-28 19:44:47,210 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-28 19:44:47,215 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-28 19:44:47,216 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-28 19:44:47,216 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-28 19:44:47,217 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 07:44:47" (1/1) ... [2023-08-28 19:44:47,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-28 19:44:47,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-28 19:44:47,246 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) [2023-08-28 19:44:47,272 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 [2023-08-28 19:44:47,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-28 19:44:47,291 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-28 19:44:47,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-28 19:44:47,292 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-28 19:44:47,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-28 19:44:47,292 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-28 19:44:47,292 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-28 19:44:47,292 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-28 19:44:47,292 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-28 19:44:47,292 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-28 19:44:47,293 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-28 19:44:47,293 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-08-28 19:44:47,293 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-08-28 19:44:47,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-28 19:44:47,293 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-28 19:44:47,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-28 19:44:47,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-28 19:44:47,296 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-28 19:44:47,544 INFO L236 CfgBuilder]: Building ICFG [2023-08-28 19:44:47,545 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-28 19:44:48,750 INFO L277 CfgBuilder]: Performing block encoding [2023-08-28 19:48:24,032 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-28 19:48:24,033 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-28 19:48:24,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.08 07:48:24 BoogieIcfgContainer [2023-08-28 19:48:24,036 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-28 19:48:24,037 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-28 19:48:24,038 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-28 19:48:24,040 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-28 19:48:24,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.08 07:44:46" (1/3) ... [2023-08-28 19:48:24,041 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@923433f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.08 07:48:24, skipping insertion in model container [2023-08-28 19:48:24,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 07:44:47" (2/3) ... [2023-08-28 19:48:24,042 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@923433f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.08 07:48:24, skipping insertion in model container [2023-08-28 19:48:24,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.08 07:48:24" (3/3) ... [2023-08-28 19:48:24,043 INFO L112 eAbstractionObserver]: Analyzing ICFG mix026.oepc.i [2023-08-28 19:48:24,051 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-28 19:48:24,059 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-28 19:48:24,060 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 283 error locations. [2023-08-28 19:48:24,060 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-28 19:48:43,111 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-28 19:48:43,170 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 427 places, 416 transitions, 852 flow [2023-08-28 19:49:13,447 INFO L130 PetriNetUnfolder]: 2/412 cut-off events. [2023-08-28 19:49:13,448 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-28 19:49:13,461 INFO L83 FinitePrefix]: Finished finitePrefix Result has 425 conditions, 412 events. 2/412 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 2324 event pairs, 0 based on Foata normal form. 0/127 useless extension candidates. Maximal degree in co-relation 373. Up to 2 conditions per place. [2023-08-28 19:49:13,462 INFO L82 GeneralOperation]: Start removeDead. Operand has 427 places, 416 transitions, 852 flow [2023-08-28 19:49:13,499 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 423 places, 412 transitions, 836 flow [2023-08-28 19:49:13,502 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-28 19:49:13,514 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 423 places, 412 transitions, 836 flow [2023-08-28 19:49:13,517 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 423 places, 412 transitions, 836 flow [2023-08-28 19:49:13,518 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 423 places, 412 transitions, 836 flow [2023-08-28 19:49:40,858 INFO L130 PetriNetUnfolder]: 2/412 cut-off events. [2023-08-28 19:49:40,858 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-28 19:49:40,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 425 conditions, 412 events. 2/412 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 2323 event pairs, 0 based on Foata normal form. 0/127 useless extension candidates. Maximal degree in co-relation 373. Up to 2 conditions per place. [2023-08-28 19:49:40,889 INFO L119 LiptonReduction]: Number of co-enabled transitions 93380 [2023-08-28 19:49:47,697 INFO L134 LiptonReduction]: Checked pairs total: 936705 [2023-08-28 19:49:47,698 INFO L136 LiptonReduction]: Total number of compositions: 146 [2023-08-28 19:49:47,710 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-28 19:49:47,715 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@48c88722, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-28 19:49:47,715 INFO L358 AbstractCegarLoop]: Starting to check reachability of 532 error locations. [2023-08-28 19:49:47,718 INFO L130 PetriNetUnfolder]: 0/2 cut-off events. [2023-08-28 19:49:47,718 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-28 19:49:47,719 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 19:49:47,719 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-28 19:49:47,719 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err15ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 528 more)] === [2023-08-28 19:49:47,723 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 19:49:47,723 INFO L85 PathProgramCache]: Analyzing trace with hash 7620623, now seen corresponding path program 1 times [2023-08-28 19:49:47,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 19:49:47,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342273597] [2023-08-28 19:49:47,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 19:49:47,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 19:49:48,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 19:49:48,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 19:49:48,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 19:49:48,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342273597] [2023-08-28 19:49:48,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342273597] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 19:49:48,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 19:49:48,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-28 19:49:48,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677629122] [2023-08-28 19:49:48,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 19:49:48,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-28 19:49:48,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 19:49:48,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-28 19:49:48,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-28 19:49:48,900 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 562 [2023-08-28 19:49:48,903 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 324 places, 311 transitions, 634 flow. Second operand has 2 states, 2 states have (on average 109.5) internal successors, (219), 2 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 19:49:48,903 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 19:49:48,903 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 562 [2023-08-28 19:49:48,904 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Killed by 15