./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/03-practical_07-nonterm.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/03-practical_07-nonterm.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 2562086a02be6998e1a5ce9ce305a1aab13bba69cf8f1d9765d0b8ae4c7e77e3 --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 19:55:59,921 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 19:55:59,923 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 19:55:59,967 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 19:55:59,969 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 19:55:59,972 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 19:55:59,974 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 19:55:59,976 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 19:55:59,978 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 19:55:59,982 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 19:55:59,983 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 19:55:59,985 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 19:55:59,985 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 19:55:59,987 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 19:55:59,988 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 19:55:59,994 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 19:55:59,995 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 19:55:59,996 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 19:55:59,998 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 19:56:00,012 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 19:56:00,014 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 19:56:00,014 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 19:56:00,015 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 19:56:00,016 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 19:56:00,022 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 19:56:00,023 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 19:56:00,024 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 19:56:00,025 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 19:56:00,026 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 19:56:00,026 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 19:56:00,027 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 19:56:00,031 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 19:56:00,033 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 19:56:00,033 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 19:56:00,035 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 19:56:00,035 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 19:56:00,036 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 19:56:00,036 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 19:56:00,036 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 19:56:00,037 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 19:56:00,037 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 19:56:00,039 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-31 19:56:00,072 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 19:56:00,072 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 19:56:00,073 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 19:56:00,074 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 19:56:00,074 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 19:56:00,075 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 19:56:00,075 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 19:56:00,075 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 19:56:00,075 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 19:56:00,076 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 19:56:00,076 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 19:56:00,077 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-31 19:56:00,077 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 19:56:00,077 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 19:56:00,077 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 19:56:00,077 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 19:56:00,077 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 19:56:00,078 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 19:56:00,078 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-31 19:56:00,078 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 19:56:00,078 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 19:56:00,078 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 19:56:00,079 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 19:56:00,079 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 19:56:00,079 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 19:56:00,079 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 19:56:00,079 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 19:56:00,080 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 19:56:00,080 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 19:56:00,080 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 19:56:00,080 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 19:56:00,080 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 19:56:00,081 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 19:56:00,081 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 19:56:00,081 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 19:56:00,081 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 19:56:00,081 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 19:56:00,082 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2562086a02be6998e1a5ce9ce305a1aab13bba69cf8f1d9765d0b8ae4c7e77e3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-08-31 19:56:00,355 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 19:56:00,382 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 19:56:00,384 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 19:56:00,385 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 19:56:00,385 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 19:56:00,387 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/03-practical_07-nonterm.i [2023-08-31 19:56:01,609 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 19:56:01,853 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 19:56:01,854 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/03-practical_07-nonterm.i [2023-08-31 19:56:01,877 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f275e80a6/7386e2b733824d2a8f5d97bf89541bc1/FLAG1e7656031 [2023-08-31 19:56:01,888 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f275e80a6/7386e2b733824d2a8f5d97bf89541bc1 [2023-08-31 19:56:01,890 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 19:56:01,891 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 19:56:01,895 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 19:56:01,895 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 19:56:01,897 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 19:56:01,898 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 07:56:01" (1/1) ... [2023-08-31 19:56:01,899 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35678b68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:56:01, skipping insertion in model container [2023-08-31 19:56:01,900 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 07:56:01" (1/1) ... [2023-08-31 19:56:01,905 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 19:56:01,948 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 19:56:02,282 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 19:56:02,295 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 19:56:02,341 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 19:56:02,405 INFO L208 MainTranslator]: Completed translation [2023-08-31 19:56:02,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:56:02 WrapperNode [2023-08-31 19:56:02,405 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 19:56:02,406 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 19:56:02,407 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 19:56:02,407 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 19:56:02,412 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:56:02" (1/1) ... [2023-08-31 19:56:02,438 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:56:02" (1/1) ... [2023-08-31 19:56:02,463 INFO L138 Inliner]: procedures = 262, calls = 22, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 54 [2023-08-31 19:56:02,464 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 19:56:02,465 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 19:56:02,465 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 19:56:02,465 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 19:56:02,472 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:56:02" (1/1) ... [2023-08-31 19:56:02,473 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:56:02" (1/1) ... [2023-08-31 19:56:02,483 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:56:02" (1/1) ... [2023-08-31 19:56:02,484 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:56:02" (1/1) ... [2023-08-31 19:56:02,493 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:56:02" (1/1) ... [2023-08-31 19:56:02,498 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:56:02" (1/1) ... [2023-08-31 19:56:02,503 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:56:02" (1/1) ... [2023-08-31 19:56:02,508 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:56:02" (1/1) ... [2023-08-31 19:56:02,509 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 19:56:02,513 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 19:56:02,514 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 19:56:02,514 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 19:56:02,515 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:56:02" (1/1) ... [2023-08-31 19:56:02,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 19:56:02,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 19:56:02,547 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 19:56:02,567 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 19:56:02,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 19:56:02,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 19:56:02,581 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-31 19:56:02,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 19:56:02,582 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-31 19:56:02,582 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 19:56:02,583 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-31 19:56:02,583 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-31 19:56:02,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 19:56:02,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 19:56:02,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 19:56:02,585 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 19:56:02,737 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 19:56:02,739 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 19:56:02,860 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 19:56:02,866 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 19:56:02,866 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-08-31 19:56:02,868 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 07:56:02 BoogieIcfgContainer [2023-08-31 19:56:02,868 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 19:56:02,869 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 19:56:02,870 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 19:56:02,872 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 19:56:02,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 07:56:01" (1/3) ... [2023-08-31 19:56:02,873 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e2e71b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 07:56:02, skipping insertion in model container [2023-08-31 19:56:02,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:56:02" (2/3) ... [2023-08-31 19:56:02,873 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e2e71b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 07:56:02, skipping insertion in model container [2023-08-31 19:56:02,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 07:56:02" (3/3) ... [2023-08-31 19:56:02,874 INFO L112 eAbstractionObserver]: Analyzing ICFG 03-practical_07-nonterm.i [2023-08-31 19:56:02,881 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 19:56:02,888 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 19:56:02,888 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-08-31 19:56:02,888 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 19:56:02,941 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-31 19:56:02,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 79 places, 77 transitions, 162 flow [2023-08-31 19:56:03,013 INFO L130 PetriNetUnfolder]: 2/76 cut-off events. [2023-08-31 19:56:03,014 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-31 19:56:03,017 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 76 events. 2/76 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 49 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 40. Up to 2 conditions per place. [2023-08-31 19:56:03,017 INFO L82 GeneralOperation]: Start removeDead. Operand has 79 places, 77 transitions, 162 flow [2023-08-31 19:56:03,023 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 72 places, 70 transitions, 146 flow [2023-08-31 19:56:03,027 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 19:56:03,036 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 70 transitions, 146 flow [2023-08-31 19:56:03,039 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 72 places, 70 transitions, 146 flow [2023-08-31 19:56:03,043 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 72 places, 70 transitions, 146 flow [2023-08-31 19:56:03,058 INFO L130 PetriNetUnfolder]: 2/70 cut-off events. [2023-08-31 19:56:03,058 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-31 19:56:03,059 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 70 events. 2/70 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 50 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 40. Up to 2 conditions per place. [2023-08-31 19:56:03,060 INFO L119 LiptonReduction]: Number of co-enabled transitions 798 [2023-08-31 19:56:04,843 INFO L134 LiptonReduction]: Checked pairs total: 2580 [2023-08-31 19:56:04,844 INFO L136 LiptonReduction]: Total number of compositions: 48 [2023-08-31 19:56:04,871 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 19:56:04,878 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;@32eb9b1b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 19:56:04,879 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2023-08-31 19:56:04,882 INFO L130 PetriNetUnfolder]: 0/6 cut-off events. [2023-08-31 19:56:04,882 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:56:04,883 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:56:04,884 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-31 19:56:04,885 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-31 19:56:04,889 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:56:04,890 INFO L85 PathProgramCache]: Analyzing trace with hash 248533150, now seen corresponding path program 1 times [2023-08-31 19:56:04,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:56:04,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123694904] [2023-08-31 19:56:04,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:56:04,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:56:05,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:56:05,099 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 19:56:05,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:56:05,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123694904] [2023-08-31 19:56:05,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123694904] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:56:05,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:56:05,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 19:56:05,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558955620] [2023-08-31 19:56:05,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:56:05,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 19:56:05,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:56:05,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 19:56:05,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 19:56:05,160 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 125 [2023-08-31 19:56:05,163 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 25 transitions, 56 flow. Second operand has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 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 19:56:05,163 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:56:05,163 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 125 [2023-08-31 19:56:05,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:56:05,229 INFO L130 PetriNetUnfolder]: 49/132 cut-off events. [2023-08-31 19:56:05,232 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:56:05,232 INFO L83 FinitePrefix]: Finished finitePrefix Result has 244 conditions, 132 events. 49/132 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 514 event pairs, 17 based on Foata normal form. 0/122 useless extension candidates. Maximal degree in co-relation 235. Up to 65 conditions per place. [2023-08-31 19:56:05,235 INFO L137 encePairwiseOnDemand]: 115/125 looper letters, 22 selfloop transitions, 6 changer transitions 0/33 dead transitions. [2023-08-31 19:56:05,237 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 33 transitions, 125 flow [2023-08-31 19:56:05,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 19:56:05,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 19:56:05,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 220 transitions. [2023-08-31 19:56:05,249 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5866666666666667 [2023-08-31 19:56:05,250 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 220 transitions. [2023-08-31 19:56:05,250 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 220 transitions. [2023-08-31 19:56:05,252 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:56:05,253 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 220 transitions. [2023-08-31 19:56:05,256 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 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 19:56:05,259 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 125.0) internal successors, (500), 4 states have internal predecessors, (500), 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 19:56:05,260 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 125.0) internal successors, (500), 4 states have internal predecessors, (500), 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 19:56:05,261 INFO L175 Difference]: Start difference. First operand has 28 places, 25 transitions, 56 flow. Second operand 3 states and 220 transitions. [2023-08-31 19:56:05,262 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 33 transitions, 125 flow [2023-08-31 19:56:05,265 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 33 transitions, 124 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 19:56:05,266 INFO L231 Difference]: Finished difference. Result has 27 places, 27 transitions, 96 flow [2023-08-31 19:56:05,267 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=27, PETRI_TRANSITIONS=27} [2023-08-31 19:56:05,269 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, -1 predicate places. [2023-08-31 19:56:05,270 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 27 transitions, 96 flow [2023-08-31 19:56:05,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 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 19:56:05,270 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:56:05,270 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:56:05,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 19:56:05,270 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-31 19:56:05,271 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:56:05,271 INFO L85 PathProgramCache]: Analyzing trace with hash -472348082, now seen corresponding path program 1 times [2023-08-31 19:56:05,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:56:05,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736874298] [2023-08-31 19:56:05,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:56:05,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:56:05,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:56:05,348 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 19:56:05,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:56:05,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736874298] [2023-08-31 19:56:05,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736874298] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:56:05,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:56:05,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 19:56:05,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548442885] [2023-08-31 19:56:05,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:56:05,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 19:56:05,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:56:05,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 19:56:05,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 19:56:05,371 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 125 [2023-08-31 19:56:05,371 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 27 transitions, 96 flow. Second operand has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 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 19:56:05,372 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:56:05,372 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 125 [2023-08-31 19:56:05,372 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:56:05,415 INFO L130 PetriNetUnfolder]: 52/144 cut-off events. [2023-08-31 19:56:05,417 INFO L131 PetriNetUnfolder]: For 81/86 co-relation queries the response was YES. [2023-08-31 19:56:05,418 INFO L83 FinitePrefix]: Finished finitePrefix Result has 346 conditions, 144 events. 52/144 cut-off events. For 81/86 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 559 event pairs, 16 based on Foata normal form. 1/137 useless extension candidates. Maximal degree in co-relation 336. Up to 84 conditions per place. [2023-08-31 19:56:05,419 INFO L137 encePairwiseOnDemand]: 119/125 looper letters, 17 selfloop transitions, 7 changer transitions 2/35 dead transitions. [2023-08-31 19:56:05,420 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 35 transitions, 174 flow [2023-08-31 19:56:05,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 19:56:05,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 19:56:05,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 214 transitions. [2023-08-31 19:56:05,423 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5706666666666667 [2023-08-31 19:56:05,424 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 214 transitions. [2023-08-31 19:56:05,424 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 214 transitions. [2023-08-31 19:56:05,425 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:56:05,425 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 214 transitions. [2023-08-31 19:56:05,426 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 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 19:56:05,427 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 125.0) internal successors, (500), 4 states have internal predecessors, (500), 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 19:56:05,428 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 125.0) internal successors, (500), 4 states have internal predecessors, (500), 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 19:56:05,428 INFO L175 Difference]: Start difference. First operand has 27 places, 27 transitions, 96 flow. Second operand 3 states and 214 transitions. [2023-08-31 19:56:05,428 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 35 transitions, 174 flow [2023-08-31 19:56:05,429 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 35 transitions, 158 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-31 19:56:05,430 INFO L231 Difference]: Finished difference. Result has 29 places, 32 transitions, 140 flow [2023-08-31 19:56:05,430 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=140, PETRI_PLACES=29, PETRI_TRANSITIONS=32} [2023-08-31 19:56:05,431 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 1 predicate places. [2023-08-31 19:56:05,431 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 32 transitions, 140 flow [2023-08-31 19:56:05,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 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 19:56:05,432 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:56:05,432 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:56:05,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-31 19:56:05,432 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-31 19:56:05,433 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:56:05,433 INFO L85 PathProgramCache]: Analyzing trace with hash 259383168, now seen corresponding path program 1 times [2023-08-31 19:56:05,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:56:05,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040063790] [2023-08-31 19:56:05,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:56:05,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:56:05,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:56:05,545 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 19:56:05,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:56:05,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040063790] [2023-08-31 19:56:05,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040063790] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:56:05,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:56:05,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 19:56:05,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381390717] [2023-08-31 19:56:05,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:56:05,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 19:56:05,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:56:05,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 19:56:05,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 19:56:05,569 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 125 [2023-08-31 19:56:05,570 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 32 transitions, 140 flow. Second operand has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 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 19:56:05,570 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:56:05,570 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 125 [2023-08-31 19:56:05,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:56:05,604 INFO L130 PetriNetUnfolder]: 53/144 cut-off events. [2023-08-31 19:56:05,604 INFO L131 PetriNetUnfolder]: For 165/175 co-relation queries the response was YES. [2023-08-31 19:56:05,605 INFO L83 FinitePrefix]: Finished finitePrefix Result has 410 conditions, 144 events. 53/144 cut-off events. For 165/175 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 569 event pairs, 14 based on Foata normal form. 3/137 useless extension candidates. Maximal degree in co-relation 399. Up to 86 conditions per place. [2023-08-31 19:56:05,606 INFO L137 encePairwiseOnDemand]: 120/125 looper letters, 15 selfloop transitions, 7 changer transitions 8/40 dead transitions. [2023-08-31 19:56:05,606 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 40 transitions, 234 flow [2023-08-31 19:56:05,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 19:56:05,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 19:56:05,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 209 transitions. [2023-08-31 19:56:05,608 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5573333333333333 [2023-08-31 19:56:05,608 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 209 transitions. [2023-08-31 19:56:05,608 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 209 transitions. [2023-08-31 19:56:05,608 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:56:05,608 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 209 transitions. [2023-08-31 19:56:05,609 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 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 19:56:05,610 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 125.0) internal successors, (500), 4 states have internal predecessors, (500), 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 19:56:05,611 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 125.0) internal successors, (500), 4 states have internal predecessors, (500), 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 19:56:05,611 INFO L175 Difference]: Start difference. First operand has 29 places, 32 transitions, 140 flow. Second operand 3 states and 209 transitions. [2023-08-31 19:56:05,611 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 40 transitions, 234 flow [2023-08-31 19:56:05,613 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 40 transitions, 214 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-31 19:56:05,614 INFO L231 Difference]: Finished difference. Result has 30 places, 31 transitions, 149 flow [2023-08-31 19:56:05,614 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=149, PETRI_PLACES=30, PETRI_TRANSITIONS=31} [2023-08-31 19:56:05,614 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 2 predicate places. [2023-08-31 19:56:05,615 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 31 transitions, 149 flow [2023-08-31 19:56:05,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 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 19:56:05,615 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:56:05,615 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:56:05,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-31 19:56:05,616 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-31 19:56:05,616 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:56:05,616 INFO L85 PathProgramCache]: Analyzing trace with hash 304532887, now seen corresponding path program 1 times [2023-08-31 19:56:05,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:56:05,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978347381] [2023-08-31 19:56:05,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:56:05,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:56:05,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-31 19:56:05,637 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-31 19:56:05,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-31 19:56:05,671 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-31 19:56:05,672 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-31 19:56:05,673 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 9 remaining) [2023-08-31 19:56:05,675 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2023-08-31 19:56:05,675 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2023-08-31 19:56:05,675 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2023-08-31 19:56:05,676 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2023-08-31 19:56:05,676 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2023-08-31 19:56:05,676 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2023-08-31 19:56:05,676 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2023-08-31 19:56:05,676 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2023-08-31 19:56:05,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-31 19:56:05,676 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-08-31 19:56:05,680 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-31 19:56:05,680 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-31 19:56:05,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.08 07:56:05 BasicIcfg [2023-08-31 19:56:05,701 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-31 19:56:05,703 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-31 19:56:05,703 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-31 19:56:05,703 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-31 19:56:05,704 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 07:56:02" (3/4) ... [2023-08-31 19:56:05,706 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-31 19:56:05,706 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-31 19:56:05,706 INFO L158 Benchmark]: Toolchain (without parser) took 3814.73ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 51.7MB in the beginning and 49.6MB in the end (delta: 2.0MB). Peak memory consumption was 17.7MB. Max. memory is 16.1GB. [2023-08-31 19:56:05,707 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 58.7MB. Free memory was 36.3MB in the beginning and 36.2MB in the end (delta: 48.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 19:56:05,707 INFO L158 Benchmark]: CACSL2BoogieTranslator took 511.18ms. Allocated memory is still 79.7MB. Free memory was 51.5MB in the beginning and 43.1MB in the end (delta: 8.3MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. [2023-08-31 19:56:05,708 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.62ms. Allocated memory is still 79.7MB. Free memory was 43.1MB in the beginning and 40.9MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 19:56:05,708 INFO L158 Benchmark]: Boogie Preprocessor took 47.69ms. Allocated memory is still 79.7MB. Free memory was 40.9MB in the beginning and 39.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 19:56:05,709 INFO L158 Benchmark]: RCFGBuilder took 354.63ms. Allocated memory is still 79.7MB. Free memory was 39.2MB in the beginning and 50.0MB in the end (delta: -10.8MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. [2023-08-31 19:56:05,709 INFO L158 Benchmark]: TraceAbstraction took 2833.12ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 49.1MB in the beginning and 50.4MB in the end (delta: -1.3MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. [2023-08-31 19:56:05,710 INFO L158 Benchmark]: Witness Printer took 2.87ms. Allocated memory is still 96.5MB. Free memory was 50.4MB in the beginning and 49.6MB in the end (delta: 716.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 19:56:05,712 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 58.7MB. Free memory was 36.3MB in the beginning and 36.2MB in the end (delta: 48.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 511.18ms. Allocated memory is still 79.7MB. Free memory was 51.5MB in the beginning and 43.1MB in the end (delta: 8.3MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.62ms. Allocated memory is still 79.7MB. Free memory was 43.1MB in the beginning and 40.9MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.69ms. Allocated memory is still 79.7MB. Free memory was 40.9MB in the beginning and 39.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 354.63ms. Allocated memory is still 79.7MB. Free memory was 39.2MB in the beginning and 50.0MB in the end (delta: -10.8MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2833.12ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 49.1MB in the beginning and 50.4MB in the end (delta: -1.3MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. * Witness Printer took 2.87ms. Allocated memory is still 96.5MB. Free memory was 50.4MB in the beginning and 49.6MB in the end (delta: 716.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.8s, 72 PlacesBefore, 28 PlacesAfterwards, 70 TransitionsBefore, 25 TransitionsAfterwards, 798 CoEnabledTransitionPairs, 5 FixpointIterations, 26 TrivialSequentialCompositions, 19 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 48 TotalNumberOfCompositions, 2580 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 982, independent: 805, independent conditional: 0, independent unconditional: 805, dependent: 177, dependent conditional: 0, dependent unconditional: 177, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 380, independent: 354, independent conditional: 0, independent unconditional: 354, dependent: 26, dependent conditional: 0, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 982, independent: 451, independent conditional: 0, independent unconditional: 451, dependent: 151, dependent conditional: 0, dependent unconditional: 151, unknown: 380, unknown conditional: 0, unknown unconditional: 380] , Statistics on independence cache: Total cache size (in pairs): 53, Positive cache size: 37, Positive conditional cache size: 0, Positive unconditional cache size: 37, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 931]: 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 } } } }; [L928] 0 pthread_t id; [L929] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, id={3:0}, mutex1={1:0}, mutex2={2:0}, myglobal=0, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L922] EXPR 1 myglobal+1 VAL [arg={0:0}, arg={0:0}, mutex1={1:0}, mutex2={2:0}, myglobal=0] [L931] 0 myglobal+1 VAL [arg={0:0}, arg={0:0}, id={3:0}, mutex1={1:0}, mutex2={2:0}, myglobal=0] [L922] 1 myglobal=myglobal+1 VAL [arg={0:0}, arg={0:0}, mutex1={1:0}, mutex2={2:0}, myglobal=1, myglobal=myglobal+1=25] [L931] 0 myglobal+1 VAL [arg={0:0}, arg={0:0}, id={3:0}, mutex1={1:0}, mutex2={2:0}, myglobal=1, myglobal=myglobal+1=25] Now there is a data race on ~myglobal~0 between C: myglobal=myglobal+1 [922] and C: myglobal+1 [931] - UnprovableResult [Line: 931]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - 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: 934]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 929]: 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: 922]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 922]: 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, 95 locations, 9 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: 2.7s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 99 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 39 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 156 IncrementalHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 7 mSDtfsCounter, 156 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=149occurred in iteration=3, InterpolantAutomatonStates: 9, 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, 0.2s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 24 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 19:56:05,757 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE