./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/04-mutex_47-fun_write.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/goblint-regression/04-mutex_47-fun_write.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 4349e9f780aa852bf667d29095b5aaef630c7e32a3c0068468fa5a88e5c63f46 --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 19:58:21,939 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 19:58:21,941 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 19:58:21,983 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 19:58:21,984 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 19:58:21,987 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 19:58:21,998 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 19:58:22,001 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 19:58:22,003 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 19:58:22,007 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 19:58:22,008 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 19:58:22,011 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 19:58:22,011 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 19:58:22,013 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 19:58:22,014 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 19:58:22,019 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 19:58:22,020 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 19:58:22,021 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 19:58:22,022 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 19:58:22,027 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 19:58:22,028 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 19:58:22,029 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 19:58:22,030 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 19:58:22,031 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 19:58:22,037 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 19:58:22,038 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 19:58:22,038 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 19:58:22,040 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 19:58:22,040 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 19:58:22,041 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 19:58:22,041 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 19:58:22,043 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 19:58:22,045 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 19:58:22,045 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 19:58:22,046 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 19:58:22,046 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 19:58:22,047 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 19:58:22,047 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 19:58:22,047 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 19:58:22,048 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 19:58:22,049 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 19:58:22,050 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-31 19:58:22,075 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 19:58:22,076 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 19:58:22,077 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 19:58:22,077 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 19:58:22,078 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 19:58:22,078 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 19:58:22,078 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 19:58:22,078 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 19:58:22,079 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 19:58:22,079 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 19:58:22,079 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 19:58:22,080 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-31 19:58:22,080 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 19:58:22,080 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 19:58:22,080 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 19:58:22,080 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 19:58:22,081 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 19:58:22,081 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 19:58:22,081 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-31 19:58:22,081 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 19:58:22,081 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 19:58:22,081 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 19:58:22,081 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 19:58:22,082 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 19:58:22,082 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 19:58:22,082 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 19:58:22,082 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 19:58:22,082 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 19:58:22,083 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 19:58:22,083 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 19:58:22,083 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 19:58:22,083 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 19:58:22,083 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 19:58:22,084 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 19:58:22,084 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 19:58:22,084 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 19:58:22,084 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 19:58:22,084 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4349e9f780aa852bf667d29095b5aaef630c7e32a3c0068468fa5a88e5c63f46 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-08-31 19:58:22,367 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 19:58:22,384 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 19:58:22,387 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 19:58:22,388 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 19:58:22,388 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 19:58:22,389 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_47-fun_write.i [2023-08-31 19:58:23,534 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 19:58:23,821 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 19:58:23,825 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_47-fun_write.i [2023-08-31 19:58:23,847 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5069eef6/3cae15e81c99469a98fe9cb00ecc9931/FLAG0a3e332ca [2023-08-31 19:58:23,865 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5069eef6/3cae15e81c99469a98fe9cb00ecc9931 [2023-08-31 19:58:23,867 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 19:58:23,868 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 19:58:23,872 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 19:58:23,872 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 19:58:23,875 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 19:58:23,875 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 07:58:23" (1/1) ... [2023-08-31 19:58:23,877 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@772f7c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:58:23, skipping insertion in model container [2023-08-31 19:58:23,877 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 07:58:23" (1/1) ... [2023-08-31 19:58:23,883 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 19:58:23,933 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 19:58:24,301 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 19:58:24,315 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 19:58:24,355 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 19:58:24,403 INFO L208 MainTranslator]: Completed translation [2023-08-31 19:58:24,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:58:24 WrapperNode [2023-08-31 19:58:24,403 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 19:58:24,404 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 19:58:24,404 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 19:58:24,404 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 19:58:24,410 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:58:24" (1/1) ... [2023-08-31 19:58:24,423 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:58:24" (1/1) ... [2023-08-31 19:58:24,441 INFO L138 Inliner]: procedures = 263, calls = 23, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 67 [2023-08-31 19:58:24,442 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 19:58:24,442 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 19:58:24,442 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 19:58:24,442 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 19:58:24,449 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:58:24" (1/1) ... [2023-08-31 19:58:24,449 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:58:24" (1/1) ... [2023-08-31 19:58:24,452 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:58:24" (1/1) ... [2023-08-31 19:58:24,452 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:58:24" (1/1) ... [2023-08-31 19:58:24,456 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:58:24" (1/1) ... [2023-08-31 19:58:24,463 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:58:24" (1/1) ... [2023-08-31 19:58:24,465 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:58:24" (1/1) ... [2023-08-31 19:58:24,466 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:58:24" (1/1) ... [2023-08-31 19:58:24,472 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 19:58:24,473 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 19:58:24,473 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 19:58:24,473 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 19:58:24,474 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:58:24" (1/1) ... [2023-08-31 19:58:24,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 19:58:24,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 19:58:24,514 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 19:58:24,527 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 19:58:24,552 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 19:58:24,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 19:58:24,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-31 19:58:24,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 19:58:24,553 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-31 19:58:24,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 19:58:24,553 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-31 19:58:24,553 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-31 19:58:24,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 19:58:24,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 19:58:24,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 19:58:24,555 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 19:58:24,705 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 19:58:24,707 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 19:58:24,915 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 19:58:24,921 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 19:58:24,921 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-31 19:58:24,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 07:58:24 BoogieIcfgContainer [2023-08-31 19:58:24,925 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 19:58:24,927 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 19:58:24,928 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 19:58:24,930 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 19:58:24,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 07:58:23" (1/3) ... [2023-08-31 19:58:24,931 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2446b10b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 07:58:24, skipping insertion in model container [2023-08-31 19:58:24,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:58:24" (2/3) ... [2023-08-31 19:58:24,931 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2446b10b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 07:58:24, skipping insertion in model container [2023-08-31 19:58:24,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 07:58:24" (3/3) ... [2023-08-31 19:58:24,934 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_47-fun_write.i [2023-08-31 19:58:24,942 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 19:58:24,950 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 19:58:24,950 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-08-31 19:58:24,950 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 19:58:24,996 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-31 19:58:25,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 75 places, 71 transitions, 150 flow [2023-08-31 19:58:25,061 INFO L130 PetriNetUnfolder]: 0/70 cut-off events. [2023-08-31 19:58:25,061 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-31 19:58:25,064 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 70 events. 0/70 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 42 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2023-08-31 19:58:25,064 INFO L82 GeneralOperation]: Start removeDead. Operand has 75 places, 71 transitions, 150 flow [2023-08-31 19:58:25,067 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 63 transitions, 129 flow [2023-08-31 19:58:25,073 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 19:58:25,085 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 63 transitions, 129 flow [2023-08-31 19:58:25,092 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 63 transitions, 129 flow [2023-08-31 19:58:25,092 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 67 places, 63 transitions, 129 flow [2023-08-31 19:58:25,127 INFO L130 PetriNetUnfolder]: 0/63 cut-off events. [2023-08-31 19:58:25,128 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:58:25,128 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 63 events. 0/63 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 42 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-31 19:58:25,129 INFO L119 LiptonReduction]: Number of co-enabled transitions 714 [2023-08-31 19:58:27,075 INFO L134 LiptonReduction]: Checked pairs total: 1969 [2023-08-31 19:58:27,075 INFO L136 LiptonReduction]: Total number of compositions: 46 [2023-08-31 19:58:27,087 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 19:58:27,092 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;@8b4955, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 19:58:27,093 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-08-31 19:58:27,096 INFO L130 PetriNetUnfolder]: 0/6 cut-off events. [2023-08-31 19:58:27,097 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:58:27,097 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:58:27,098 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-31 19:58:27,098 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2023-08-31 19:58:27,102 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:58:27,102 INFO L85 PathProgramCache]: Analyzing trace with hash 225708328, now seen corresponding path program 1 times [2023-08-31 19:58:27,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:58:27,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162828905] [2023-08-31 19:58:27,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:58:27,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:58:27,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:58:27,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:58:27,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:58:27,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162828905] [2023-08-31 19:58:27,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162828905] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:58:27,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:58:27,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 19:58:27,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705822531] [2023-08-31 19:58:27,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:58:27,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 19:58:27,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:58:27,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 19:58:27,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 19:58:27,364 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 117 [2023-08-31 19:58:27,366 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 18 transitions, 39 flow. Second operand has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 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) [2023-08-31 19:58:27,367 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:58:27,367 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 117 [2023-08-31 19:58:27,367 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:58:27,432 INFO L130 PetriNetUnfolder]: 38/104 cut-off events. [2023-08-31 19:58:27,432 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:58:27,433 INFO L83 FinitePrefix]: Finished finitePrefix Result has 202 conditions, 104 events. 38/104 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 379 event pairs, 17 based on Foata normal form. 0/98 useless extension candidates. Maximal degree in co-relation 193. Up to 61 conditions per place. [2023-08-31 19:58:27,435 INFO L137 encePairwiseOnDemand]: 111/117 looper letters, 18 selfloop transitions, 4 changer transitions 0/25 dead transitions. [2023-08-31 19:58:27,436 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 25 transitions, 97 flow [2023-08-31 19:58:27,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 19:58:27,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 19:58:27,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 216 transitions. [2023-08-31 19:58:27,449 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6153846153846154 [2023-08-31 19:58:27,449 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 216 transitions. [2023-08-31 19:58:27,450 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 216 transitions. [2023-08-31 19:58:27,452 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:58:27,454 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 216 transitions. [2023-08-31 19:58:27,456 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 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) [2023-08-31 19:58:27,460 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 117.0) internal successors, (468), 4 states have internal predecessors, (468), 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) [2023-08-31 19:58:27,460 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 117.0) internal successors, (468), 4 states have internal predecessors, (468), 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) [2023-08-31 19:58:27,462 INFO L175 Difference]: Start difference. First operand has 22 places, 18 transitions, 39 flow. Second operand 3 states and 216 transitions. [2023-08-31 19:58:27,463 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 25 transitions, 97 flow [2023-08-31 19:58:27,464 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 25 transitions, 96 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 19:58:27,465 INFO L231 Difference]: Finished difference. Result has 24 places, 20 transitions, 66 flow [2023-08-31 19:58:27,467 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=66, PETRI_PLACES=24, PETRI_TRANSITIONS=20} [2023-08-31 19:58:27,470 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, 2 predicate places. [2023-08-31 19:58:27,470 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 20 transitions, 66 flow [2023-08-31 19:58:27,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 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) [2023-08-31 19:58:27,470 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:58:27,470 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-31 19:58:27,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 19:58:27,471 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2023-08-31 19:58:27,471 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:58:27,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1592797463, now seen corresponding path program 1 times [2023-08-31 19:58:27,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:58:27,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366319441] [2023-08-31 19:58:27,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:58:27,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:58:27,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:58:27,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:58:27,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:58:27,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366319441] [2023-08-31 19:58:27,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366319441] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:58:27,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:58:27,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 19:58:27,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537024299] [2023-08-31 19:58:27,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:58:27,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 19:58:27,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:58:27,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 19:58:27,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 19:58:27,540 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 117 [2023-08-31 19:58:27,540 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 20 transitions, 66 flow. Second operand has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 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) [2023-08-31 19:58:27,540 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:58:27,540 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 117 [2023-08-31 19:58:27,540 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:58:27,574 INFO L130 PetriNetUnfolder]: 40/114 cut-off events. [2023-08-31 19:58:27,574 INFO L131 PetriNetUnfolder]: For 37/38 co-relation queries the response was YES. [2023-08-31 19:58:27,575 INFO L83 FinitePrefix]: Finished finitePrefix Result has 268 conditions, 114 events. 40/114 cut-off events. For 37/38 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 438 event pairs, 17 based on Foata normal form. 0/102 useless extension candidates. Maximal degree in co-relation 258. Up to 70 conditions per place. [2023-08-31 19:58:27,576 INFO L137 encePairwiseOnDemand]: 111/117 looper letters, 15 selfloop transitions, 7 changer transitions 1/28 dead transitions. [2023-08-31 19:58:27,576 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 28 transitions, 138 flow [2023-08-31 19:58:27,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 19:58:27,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 19:58:27,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 207 transitions. [2023-08-31 19:58:27,578 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5897435897435898 [2023-08-31 19:58:27,578 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 207 transitions. [2023-08-31 19:58:27,578 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 207 transitions. [2023-08-31 19:58:27,578 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:58:27,579 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 207 transitions. [2023-08-31 19:58:27,580 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 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) [2023-08-31 19:58:27,581 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 117.0) internal successors, (468), 4 states have internal predecessors, (468), 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) [2023-08-31 19:58:27,581 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 117.0) internal successors, (468), 4 states have internal predecessors, (468), 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) [2023-08-31 19:58:27,581 INFO L175 Difference]: Start difference. First operand has 24 places, 20 transitions, 66 flow. Second operand 3 states and 207 transitions. [2023-08-31 19:58:27,581 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 28 transitions, 138 flow [2023-08-31 19:58:27,582 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 28 transitions, 126 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-31 19:58:27,583 INFO L231 Difference]: Finished difference. Result has 26 places, 25 transitions, 114 flow [2023-08-31 19:58:27,583 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=114, PETRI_PLACES=26, PETRI_TRANSITIONS=25} [2023-08-31 19:58:27,583 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, 4 predicate places. [2023-08-31 19:58:27,584 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 25 transitions, 114 flow [2023-08-31 19:58:27,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 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) [2023-08-31 19:58:27,584 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:58:27,584 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:58:27,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-31 19:58:27,585 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2023-08-31 19:58:27,585 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:58:27,585 INFO L85 PathProgramCache]: Analyzing trace with hash -1747364112, now seen corresponding path program 1 times [2023-08-31 19:58:27,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:58:27,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542271222] [2023-08-31 19:58:27,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:58:27,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:58:27,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-31 19:58:27,608 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-31 19:58:27,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-31 19:58:27,637 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-31 19:58:27,637 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-31 19:58:27,638 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 6 remaining) [2023-08-31 19:58:27,645 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (4 of 6 remaining) [2023-08-31 19:58:27,645 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (3 of 6 remaining) [2023-08-31 19:58:27,646 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2023-08-31 19:58:27,646 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 6 remaining) [2023-08-31 19:58:27,646 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 6 remaining) [2023-08-31 19:58:27,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-31 19:58:27,646 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-08-31 19:58:27,651 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-31 19:58:27,652 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-31 19:58:27,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.08 07:58:27 BasicIcfg [2023-08-31 19:58:27,696 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-31 19:58:27,697 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-31 19:58:27,697 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-31 19:58:27,698 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-31 19:58:27,699 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 07:58:24" (3/4) ... [2023-08-31 19:58:27,701 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-31 19:58:27,701 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-31 19:58:27,702 INFO L158 Benchmark]: Toolchain (without parser) took 3833.55ms. Allocated memory was 75.5MB in the beginning and 98.6MB in the end (delta: 23.1MB). Free memory was 45.7MB in the beginning and 69.6MB in the end (delta: -23.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 19:58:27,702 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 75.5MB. Free memory was 52.6MB in the beginning and 52.5MB in the end (delta: 94.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 19:58:27,703 INFO L158 Benchmark]: CACSL2BoogieTranslator took 532.10ms. Allocated memory is still 75.5MB. Free memory was 45.5MB in the beginning and 41.0MB in the end (delta: 4.5MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. [2023-08-31 19:58:27,703 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.30ms. Allocated memory is still 75.5MB. Free memory was 41.0MB in the beginning and 38.6MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 19:58:27,704 INFO L158 Benchmark]: Boogie Preprocessor took 30.05ms. Allocated memory is still 75.5MB. Free memory was 38.6MB in the beginning and 37.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 19:58:27,704 INFO L158 Benchmark]: RCFGBuilder took 452.53ms. Allocated memory was 75.5MB in the beginning and 98.6MB in the end (delta: 23.1MB). Free memory was 37.1MB in the beginning and 67.3MB in the end (delta: -30.2MB). Peak memory consumption was 9.1MB. Max. memory is 16.1GB. [2023-08-31 19:58:27,712 INFO L158 Benchmark]: TraceAbstraction took 2769.07ms. Allocated memory is still 98.6MB. Free memory was 66.4MB in the beginning and 69.6MB in the end (delta: -3.2MB). Peak memory consumption was 27.2MB. Max. memory is 16.1GB. [2023-08-31 19:58:27,712 INFO L158 Benchmark]: Witness Printer took 4.22ms. Allocated memory is still 98.6MB. Free memory is still 69.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 19:58:27,716 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 75.5MB. Free memory was 52.6MB in the beginning and 52.5MB in the end (delta: 94.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 532.10ms. Allocated memory is still 75.5MB. Free memory was 45.5MB in the beginning and 41.0MB in the end (delta: 4.5MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.30ms. Allocated memory is still 75.5MB. Free memory was 41.0MB in the beginning and 38.6MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.05ms. Allocated memory is still 75.5MB. Free memory was 38.6MB in the beginning and 37.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 452.53ms. Allocated memory was 75.5MB in the beginning and 98.6MB in the end (delta: 23.1MB). Free memory was 37.1MB in the beginning and 67.3MB in the end (delta: -30.2MB). Peak memory consumption was 9.1MB. Max. memory is 16.1GB. * TraceAbstraction took 2769.07ms. Allocated memory is still 98.6MB. Free memory was 66.4MB in the beginning and 69.6MB in the end (delta: -3.2MB). Peak memory consumption was 27.2MB. Max. memory is 16.1GB. * Witness Printer took 4.22ms. Allocated memory is still 98.6MB. Free memory is still 69.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.0s, 67 PlacesBefore, 22 PlacesAfterwards, 63 TransitionsBefore, 18 TransitionsAfterwards, 714 CoEnabledTransitionPairs, 6 FixpointIterations, 23 TrivialSequentialCompositions, 23 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 46 TotalNumberOfCompositions, 1969 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 998, independent: 824, independent conditional: 0, independent unconditional: 824, dependent: 174, dependent conditional: 0, dependent unconditional: 174, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 390, independent: 361, independent conditional: 0, independent unconditional: 361, dependent: 29, dependent conditional: 0, dependent unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 998, independent: 463, independent conditional: 0, independent unconditional: 463, dependent: 145, dependent conditional: 0, dependent unconditional: 145, unknown: 390, unknown conditional: 0, unknown unconditional: 390] , Statistics on independence cache: Total cache size (in pairs): 52, Positive cache size: 39, Positive conditional cache size: 0, Positive unconditional cache size: 39, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 933]: Data race detected Data race detected The following path leads to a data race: [L917] 0 int myglobal; [L918] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L919] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L930] 0 pthread_t id; [L931] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [id={3:0}, mutex1={1:0}, mutex2={2:0}, myglobal=0, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L925] CALL, EXPR 1 f() [L921] 1 return 5; VAL [\result=5, mutex1={1:0}, mutex2={2:0}, myglobal=0] [L933] 0 myglobal+1 VAL [id={3:0}, mutex1={1:0}, mutex2={2:0}, myglobal=0] [L925] RET, EXPR 1 f() [L925] 1 myglobal=f() VAL [arg={0:0}, arg={0:0}, f()=5, mutex1={1:0}, mutex2={2:0}, myglobal=5, myglobal=f()=25] [L933] 0 myglobal+1 VAL [id={3:0}, mutex1={1:0}, mutex2={2:0}, myglobal=5] Now there is a data race on ~myglobal~0 between C: myglobal=f() [925] and C: myglobal+1 [933] - UnprovableResult [Line: 933]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 935]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 931]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 925]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 91 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.6s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 46 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 76 IncrementalHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 2 mSDtfsCounter, 76 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=114occurred in iteration=2, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-08-31 19:58:27,751 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE