./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe015_rmo.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --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/safe015_rmo.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 fa1630ab5b9ca06d45588653daa6fff0d3a2fbd0851a9f5c3999782c5c51eba5 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-31 17:43:43,497 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 17:43:43,499 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 17:43:43,543 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 17:43:43,545 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 17:43:43,548 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 17:43:43,550 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 17:43:43,552 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 17:43:43,555 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 17:43:43,559 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 17:43:43,560 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 17:43:43,562 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 17:43:43,563 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 17:43:43,564 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 17:43:43,566 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 17:43:43,571 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 17:43:43,572 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 17:43:43,574 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 17:43:43,575 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 17:43:43,580 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 17:43:43,581 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 17:43:43,582 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 17:43:43,583 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 17:43:43,584 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 17:43:43,590 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 17:43:43,591 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 17:43:43,591 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 17:43:43,593 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 17:43:43,593 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 17:43:43,594 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 17:43:43,594 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 17:43:43,602 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 17:43:43,603 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 17:43:43,604 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 17:43:43,605 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 17:43:43,605 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 17:43:43,606 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 17:43:43,606 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 17:43:43,606 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 17:43:43,607 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 17:43:43,612 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 17:43:43,614 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-31 17:43:43,648 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 17:43:43,648 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 17:43:43,649 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 17:43:43,649 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 17:43:43,650 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 17:43:43,651 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 17:43:43,651 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 17:43:43,651 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 17:43:43,651 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 17:43:43,652 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 17:43:43,653 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 17:43:43,653 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-31 17:43:43,653 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 17:43:43,653 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 17:43:43,653 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 17:43:43,654 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 17:43:43,654 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 17:43:43,654 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 17:43:43,654 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-31 17:43:43,654 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 17:43:43,654 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 17:43:43,655 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 17:43:43,655 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 17:43:43,655 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 17:43:43,655 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 17:43:43,655 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 17:43:43,656 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 17:43:43,656 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 17:43:43,656 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 17:43:43,656 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 17:43:43,656 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 17:43:43,657 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 17:43:43,657 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 17:43:43,657 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 17:43:43,657 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 17:43:43,657 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 17:43:43,658 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 17:43:43,658 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa1630ab5b9ca06d45588653daa6fff0d3a2fbd0851a9f5c3999782c5c51eba5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-08-31 17:43:43,954 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 17:43:43,972 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 17:43:43,975 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 17:43:43,976 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 17:43:43,976 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 17:43:43,978 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe015_rmo.i [2023-08-31 17:43:45,184 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 17:43:45,487 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 17:43:45,488 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe015_rmo.i [2023-08-31 17:43:45,501 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87179dc95/4f3d1aceae054df29df70adac6cd96c5/FLAG628ae74ee [2023-08-31 17:43:45,515 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87179dc95/4f3d1aceae054df29df70adac6cd96c5 [2023-08-31 17:43:45,517 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 17:43:45,519 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 17:43:45,520 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 17:43:45,520 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 17:43:45,523 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 17:43:45,523 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 05:43:45" (1/1) ... [2023-08-31 17:43:45,524 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ce7c305 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:43:45, skipping insertion in model container [2023-08-31 17:43:45,525 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 05:43:45" (1/1) ... [2023-08-31 17:43:45,530 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 17:43:45,568 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 17:43:45,713 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/safe015_rmo.i[988,1001] [2023-08-31 17:43:46,011 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 17:43:46,033 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 17:43:46,047 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/safe015_rmo.i[988,1001] [2023-08-31 17:43:46,147 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 17:43:46,191 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-31 17:43:46,191 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-31 17:43:46,197 INFO L208 MainTranslator]: Completed translation [2023-08-31 17:43:46,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:43:46 WrapperNode [2023-08-31 17:43:46,198 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 17:43:46,199 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 17:43:46,199 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 17:43:46,199 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 17:43:46,205 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:43:46" (1/1) ... [2023-08-31 17:43:46,263 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:43:46" (1/1) ... [2023-08-31 17:43:46,335 INFO L138 Inliner]: procedures = 176, calls = 84, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 794 [2023-08-31 17:43:46,336 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 17:43:46,337 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 17:43:46,337 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 17:43:46,338 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 17:43:46,345 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:43:46" (1/1) ... [2023-08-31 17:43:46,345 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:43:46" (1/1) ... [2023-08-31 17:43:46,355 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:43:46" (1/1) ... [2023-08-31 17:43:46,355 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:43:46" (1/1) ... [2023-08-31 17:43:46,406 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:43:46" (1/1) ... [2023-08-31 17:43:46,423 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:43:46" (1/1) ... [2023-08-31 17:43:46,428 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:43:46" (1/1) ... [2023-08-31 17:43:46,434 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:43:46" (1/1) ... [2023-08-31 17:43:46,452 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 17:43:46,453 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 17:43:46,454 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 17:43:46,454 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 17:43:46,455 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:43:46" (1/1) ... [2023-08-31 17:43:46,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 17:43:46,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 17:43:46,482 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) [2023-08-31 17:43:46,495 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 [2023-08-31 17:43:46,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-31 17:43:46,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 17:43:46,520 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-31 17:43:46,520 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 17:43:46,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 17:43:46,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 17:43:46,521 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-31 17:43:46,521 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-31 17:43:46,521 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-31 17:43:46,521 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-31 17:43:46,521 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-31 17:43:46,521 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-31 17:43:46,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 17:43:46,522 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-31 17:43:46,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 17:43:46,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 17:43:46,524 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-31 17:43:46,755 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 17:43:46,766 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 17:43:48,331 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 17:54:45,931 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 17:54:45,931 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-31 17:54:45,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 05:54:45 BoogieIcfgContainer [2023-08-31 17:54:45,934 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 17:54:45,936 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 17:54:45,936 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 17:54:45,939 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 17:54:45,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 05:43:45" (1/3) ... [2023-08-31 17:54:45,940 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47078ffa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 05:54:45, skipping insertion in model container [2023-08-31 17:54:45,940 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:43:46" (2/3) ... [2023-08-31 17:54:45,941 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47078ffa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 05:54:45, skipping insertion in model container [2023-08-31 17:54:45,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 05:54:45" (3/3) ... [2023-08-31 17:54:45,943 INFO L112 eAbstractionObserver]: Analyzing ICFG safe015_rmo.i [2023-08-31 17:54:45,951 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 17:54:45,959 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 17:54:45,960 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 399 error locations. [2023-08-31 17:54:45,960 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 17:55:08,625 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-31 17:55:08,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 534 places, 526 transitions, 1067 flow [2023-08-31 17:56:05,181 INFO L130 PetriNetUnfolder]: 2/523 cut-off events. [2023-08-31 17:56:05,181 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 17:56:05,192 INFO L83 FinitePrefix]: Finished finitePrefix Result has 533 conditions, 523 events. 2/523 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 3682 event pairs, 0 based on Foata normal form. 0/122 useless extension candidates. Maximal degree in co-relation 469. Up to 2 conditions per place. [2023-08-31 17:56:05,192 INFO L82 GeneralOperation]: Start removeDead. Operand has 534 places, 526 transitions, 1067 flow [2023-08-31 17:56:05,215 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 531 places, 523 transitions, 1055 flow [2023-08-31 17:56:05,218 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 17:56:05,225 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 531 places, 523 transitions, 1055 flow [2023-08-31 17:56:05,228 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 531 places, 523 transitions, 1055 flow [2023-08-31 17:56:05,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 531 places, 523 transitions, 1055 flow [2023-08-31 17:56:59,443 INFO L130 PetriNetUnfolder]: 2/523 cut-off events. [2023-08-31 17:56:59,444 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 17:56:59,448 INFO L83 FinitePrefix]: Finished finitePrefix Result has 533 conditions, 523 events. 2/523 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 3671 event pairs, 0 based on Foata normal form. 0/122 useless extension candidates. Maximal degree in co-relation 469. Up to 2 conditions per place. [2023-08-31 17:56:59,481 INFO L119 LiptonReduction]: Number of co-enabled transitions 146604 Killed by 15