./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/04-mutex_21-sound_base.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_21-sound_base.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 41db91eef6d6907cd33ee0e53afae152e76d8df255e37a51bd770d30500bb6fe --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 19:57:36,214 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 19:57:36,216 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 19:57:36,259 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 19:57:36,260 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 19:57:36,263 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 19:57:36,265 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 19:57:36,267 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 19:57:36,269 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 19:57:36,273 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 19:57:36,274 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 19:57:36,277 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 19:57:36,277 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 19:57:36,279 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 19:57:36,280 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 19:57:36,285 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 19:57:36,286 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 19:57:36,287 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 19:57:36,288 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 19:57:36,293 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 19:57:36,294 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 19:57:36,295 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 19:57:36,296 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 19:57:36,306 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 19:57:36,312 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 19:57:36,313 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 19:57:36,313 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 19:57:36,315 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 19:57:36,315 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 19:57:36,316 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 19:57:36,316 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 19:57:36,318 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 19:57:36,320 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 19:57:36,320 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 19:57:36,321 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 19:57:36,321 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 19:57:36,322 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 19:57:36,322 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 19:57:36,322 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 19:57:36,323 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 19:57:36,323 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 19:57:36,325 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-31 19:57:36,358 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 19:57:36,358 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 19:57:36,359 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 19:57:36,359 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 19:57:36,360 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 19:57:36,360 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 19:57:36,361 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 19:57:36,361 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 19:57:36,361 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 19:57:36,361 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 19:57:36,362 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 19:57:36,362 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-31 19:57:36,362 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 19:57:36,363 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 19:57:36,363 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 19:57:36,363 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 19:57:36,363 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 19:57:36,363 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 19:57:36,364 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-31 19:57:36,364 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 19:57:36,364 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 19:57:36,364 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 19:57:36,364 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 19:57:36,365 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 19:57:36,365 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 19:57:36,365 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 19:57:36,365 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 19:57:36,365 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 19:57:36,365 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 19:57:36,366 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 19:57:36,366 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 19:57:36,366 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 19:57:36,366 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 19:57:36,367 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 19:57:36,367 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 19:57:36,367 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 19:57:36,367 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 19:57:36,367 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 41db91eef6d6907cd33ee0e53afae152e76d8df255e37a51bd770d30500bb6fe Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-08-31 19:57:36,687 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 19:57:36,702 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 19:57:36,704 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 19:57:36,705 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 19:57:36,706 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 19:57:36,707 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_21-sound_base.i [2023-08-31 19:57:37,774 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 19:57:38,055 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 19:57:38,056 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_21-sound_base.i [2023-08-31 19:57:38,067 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dfc8c1d40/3b08b0457b9449689623be4666ff9fb6/FLAG88f561348 [2023-08-31 19:57:38,082 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dfc8c1d40/3b08b0457b9449689623be4666ff9fb6 [2023-08-31 19:57:38,084 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 19:57:38,085 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 19:57:38,086 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 19:57:38,086 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 19:57:38,089 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 19:57:38,090 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 07:57:38" (1/1) ... [2023-08-31 19:57:38,090 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67040b00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:38, skipping insertion in model container [2023-08-31 19:57:38,091 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 07:57:38" (1/1) ... [2023-08-31 19:57:38,096 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 19:57:38,133 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 19:57:38,542 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 19:57:38,553 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 19:57:38,591 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 19:57:38,660 WARN L667 CHandler]: The function f is called, but not defined or handled by StandardFunctionHandler. [2023-08-31 19:57:38,666 INFO L208 MainTranslator]: Completed translation [2023-08-31 19:57:38,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:38 WrapperNode [2023-08-31 19:57:38,667 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 19:57:38,668 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 19:57:38,668 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 19:57:38,668 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 19:57:38,674 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:38" (1/1) ... [2023-08-31 19:57:38,700 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:38" (1/1) ... [2023-08-31 19:57:38,719 INFO L138 Inliner]: procedures = 262, calls = 10, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 48 [2023-08-31 19:57:38,719 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 19:57:38,720 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 19:57:38,720 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 19:57:38,721 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 19:57:38,728 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:38" (1/1) ... [2023-08-31 19:57:38,728 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:38" (1/1) ... [2023-08-31 19:57:38,742 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:38" (1/1) ... [2023-08-31 19:57:38,742 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:38" (1/1) ... [2023-08-31 19:57:38,746 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:38" (1/1) ... [2023-08-31 19:57:38,747 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:38" (1/1) ... [2023-08-31 19:57:38,752 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:38" (1/1) ... [2023-08-31 19:57:38,757 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:38" (1/1) ... [2023-08-31 19:57:38,758 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 19:57:38,761 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 19:57:38,761 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 19:57:38,761 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 19:57:38,762 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:38" (1/1) ... [2023-08-31 19:57:38,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 19:57:38,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 19:57:38,791 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 19:57:38,818 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 19:57:38,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 19:57:38,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 19:57:38,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 19:57:38,829 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-31 19:57:38,829 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-31 19:57:38,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 19:57:38,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 19:57:38,830 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 19:57:38,927 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 19:57:38,929 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 19:57:39,027 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 19:57:39,037 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 19:57:39,037 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-31 19:57:39,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 07:57:39 BoogieIcfgContainer [2023-08-31 19:57:39,039 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 19:57:39,041 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 19:57:39,041 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 19:57:39,043 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 19:57:39,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 07:57:38" (1/3) ... [2023-08-31 19:57:39,050 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cda7dff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 07:57:39, skipping insertion in model container [2023-08-31 19:57:39,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:38" (2/3) ... [2023-08-31 19:57:39,050 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cda7dff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 07:57:39, skipping insertion in model container [2023-08-31 19:57:39,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 07:57:39" (3/3) ... [2023-08-31 19:57:39,052 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_21-sound_base.i [2023-08-31 19:57:39,061 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 19:57:39,069 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 19:57:39,069 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2023-08-31 19:57:39,069 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 19:57:39,130 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-31 19:57:39,159 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 58 places, 55 transitions, 115 flow [2023-08-31 19:57:39,193 INFO L130 PetriNetUnfolder]: 1/54 cut-off events. [2023-08-31 19:57:39,194 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:57:39,199 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58 conditions, 54 events. 1/54 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 80 event pairs, 0 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2023-08-31 19:57:39,200 INFO L82 GeneralOperation]: Start removeDead. Operand has 58 places, 55 transitions, 115 flow [2023-08-31 19:57:39,202 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 57 places, 54 transitions, 111 flow [2023-08-31 19:57:39,204 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 19:57:39,218 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 57 places, 54 transitions, 111 flow [2023-08-31 19:57:39,223 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 57 places, 54 transitions, 111 flow [2023-08-31 19:57:39,227 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 57 places, 54 transitions, 111 flow [2023-08-31 19:57:39,241 INFO L130 PetriNetUnfolder]: 1/54 cut-off events. [2023-08-31 19:57:39,241 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:57:39,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58 conditions, 54 events. 1/54 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 80 event pairs, 0 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2023-08-31 19:57:39,243 INFO L119 LiptonReduction]: Number of co-enabled transitions 850 [2023-08-31 19:57:40,177 INFO L134 LiptonReduction]: Checked pairs total: 2064 [2023-08-31 19:57:40,177 INFO L136 LiptonReduction]: Total number of compositions: 37 [2023-08-31 19:57:40,191 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 19:57:40,196 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;@2d112f59, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 19:57:40,197 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2023-08-31 19:57:40,199 INFO L130 PetriNetUnfolder]: 0/4 cut-off events. [2023-08-31 19:57:40,200 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:57:40,200 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:57:40,201 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-31 19:57:40,201 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-31 19:57:40,205 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:57:40,205 INFO L85 PathProgramCache]: Analyzing trace with hash 6428062, now seen corresponding path program 1 times [2023-08-31 19:57:40,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:57:40,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168671645] [2023-08-31 19:57:40,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:57:40,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:57:40,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:57:40,406 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 19:57:40,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:57:40,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168671645] [2023-08-31 19:57:40,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168671645] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:57:40,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:57:40,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 19:57:40,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054429334] [2023-08-31 19:57:40,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:57:40,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 19:57:40,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:57:40,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 19:57:40,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 19:57:40,458 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 92 [2023-08-31 19:57:40,460 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 20 transitions, 43 flow. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 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 19:57:40,460 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:57:40,460 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 92 [2023-08-31 19:57:40,461 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:57:40,523 INFO L130 PetriNetUnfolder]: 57/161 cut-off events. [2023-08-31 19:57:40,523 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:57:40,524 INFO L83 FinitePrefix]: Finished finitePrefix Result has 294 conditions, 161 events. 57/161 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 725 event pairs, 3 based on Foata normal form. 0/147 useless extension candidates. Maximal degree in co-relation 285. Up to 70 conditions per place. [2023-08-31 19:57:40,526 INFO L137 encePairwiseOnDemand]: 88/92 looper letters, 23 selfloop transitions, 3 changer transitions 0/31 dead transitions. [2023-08-31 19:57:40,526 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 31 transitions, 117 flow [2023-08-31 19:57:40,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 19:57:40,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 19:57:40,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 177 transitions. [2023-08-31 19:57:40,537 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6413043478260869 [2023-08-31 19:57:40,537 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 177 transitions. [2023-08-31 19:57:40,537 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 177 transitions. [2023-08-31 19:57:40,538 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:57:40,540 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 177 transitions. [2023-08-31 19:57:40,542 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 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 19:57:40,545 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 92.0) internal successors, (368), 4 states have internal predecessors, (368), 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 19:57:40,545 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 92.0) internal successors, (368), 4 states have internal predecessors, (368), 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 19:57:40,547 INFO L175 Difference]: Start difference. First operand has 23 places, 20 transitions, 43 flow. Second operand 3 states and 177 transitions. [2023-08-31 19:57:40,547 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 31 transitions, 117 flow [2023-08-31 19:57:40,553 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 31 transitions, 116 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 19:57:40,555 INFO L231 Difference]: Finished difference. Result has 26 places, 22 transitions, 64 flow [2023-08-31 19:57:40,556 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=64, PETRI_PLACES=26, PETRI_TRANSITIONS=22} [2023-08-31 19:57:40,559 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 3 predicate places. [2023-08-31 19:57:40,559 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 22 transitions, 64 flow [2023-08-31 19:57:40,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 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 19:57:40,560 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:57:40,560 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-31 19:57:40,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 19:57:40,560 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-31 19:57:40,561 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:57:40,561 INFO L85 PathProgramCache]: Analyzing trace with hash 199294149, now seen corresponding path program 1 times [2023-08-31 19:57:40,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:57:40,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221843526] [2023-08-31 19:57:40,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:57:40,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:57:40,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:57:40,599 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 19:57:40,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:57:40,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221843526] [2023-08-31 19:57:40,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221843526] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:57:40,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:57:40,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 19:57:40,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273814385] [2023-08-31 19:57:40,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:57:40,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 19:57:40,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:57:40,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 19:57:40,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 19:57:40,611 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 92 [2023-08-31 19:57:40,611 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 22 transitions, 64 flow. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 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 19:57:40,611 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:57:40,611 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 92 [2023-08-31 19:57:40,612 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:57:40,653 INFO L130 PetriNetUnfolder]: 62/171 cut-off events. [2023-08-31 19:57:40,653 INFO L131 PetriNetUnfolder]: For 29/29 co-relation queries the response was YES. [2023-08-31 19:57:40,654 INFO L83 FinitePrefix]: Finished finitePrefix Result has 341 conditions, 171 events. 62/171 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 774 event pairs, 31 based on Foata normal form. 0/148 useless extension candidates. Maximal degree in co-relation 331. Up to 116 conditions per place. [2023-08-31 19:57:40,655 INFO L137 encePairwiseOnDemand]: 88/92 looper letters, 18 selfloop transitions, 4 changer transitions 0/29 dead transitions. [2023-08-31 19:57:40,655 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 29 transitions, 126 flow [2023-08-31 19:57:40,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 19:57:40,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 19:57:40,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 163 transitions. [2023-08-31 19:57:40,657 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5905797101449275 [2023-08-31 19:57:40,657 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 163 transitions. [2023-08-31 19:57:40,657 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 163 transitions. [2023-08-31 19:57:40,658 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:57:40,658 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 163 transitions. [2023-08-31 19:57:40,659 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 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 19:57:40,660 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 92.0) internal successors, (368), 4 states have internal predecessors, (368), 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 19:57:40,660 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 92.0) internal successors, (368), 4 states have internal predecessors, (368), 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 19:57:40,660 INFO L175 Difference]: Start difference. First operand has 26 places, 22 transitions, 64 flow. Second operand 3 states and 163 transitions. [2023-08-31 19:57:40,661 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 29 transitions, 126 flow [2023-08-31 19:57:40,661 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 29 transitions, 118 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-31 19:57:40,662 INFO L231 Difference]: Finished difference. Result has 27 places, 24 transitions, 82 flow [2023-08-31 19:57:40,662 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=82, PETRI_PLACES=27, PETRI_TRANSITIONS=24} [2023-08-31 19:57:40,663 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 4 predicate places. [2023-08-31 19:57:40,663 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 24 transitions, 82 flow [2023-08-31 19:57:40,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 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 19:57:40,663 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:57:40,664 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-31 19:57:40,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-31 19:57:40,664 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-31 19:57:40,664 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:57:40,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1883148962, now seen corresponding path program 1 times [2023-08-31 19:57:40,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:57:40,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384692533] [2023-08-31 19:57:40,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:57:40,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:57:40,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-31 19:57:40,694 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-31 19:57:40,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-31 19:57:40,723 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-31 19:57:40,725 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-31 19:57:40,726 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (8 of 9 remaining) [2023-08-31 19:57:40,728 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2023-08-31 19:57:40,728 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2023-08-31 19:57:40,729 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 9 remaining) [2023-08-31 19:57:40,729 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (4 of 9 remaining) [2023-08-31 19:57:40,729 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2023-08-31 19:57:40,729 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2023-08-31 19:57:40,733 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2023-08-31 19:57:40,733 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2023-08-31 19:57:40,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-31 19:57:40,734 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-08-31 19:57:40,742 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-31 19:57:40,742 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-31 19:57:40,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.08 07:57:40 BasicIcfg [2023-08-31 19:57:40,772 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-31 19:57:40,774 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-31 19:57:40,774 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-31 19:57:40,775 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-31 19:57:40,776 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 07:57:39" (3/4) ... [2023-08-31 19:57:40,778 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-31 19:57:40,778 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-31 19:57:40,779 INFO L158 Benchmark]: Toolchain (without parser) took 2693.95ms. Allocated memory is still 81.8MB. Free memory was 58.0MB in the beginning and 36.7MB in the end (delta: 21.3MB). Peak memory consumption was 24.6MB. Max. memory is 16.1GB. [2023-08-31 19:57:40,780 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 62.9MB. Free memory is still 40.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 19:57:40,782 INFO L158 Benchmark]: CACSL2BoogieTranslator took 580.75ms. Allocated memory is still 81.8MB. Free memory was 57.8MB in the beginning and 50.7MB in the end (delta: 7.1MB). Peak memory consumption was 24.4MB. Max. memory is 16.1GB. [2023-08-31 19:57:40,782 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.81ms. Allocated memory is still 81.8MB. Free memory was 50.7MB in the beginning and 48.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 19:57:40,784 INFO L158 Benchmark]: Boogie Preprocessor took 40.07ms. Allocated memory is still 81.8MB. Free memory was 48.6MB in the beginning and 47.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 19:57:40,784 INFO L158 Benchmark]: RCFGBuilder took 278.02ms. Allocated memory is still 81.8MB. Free memory was 47.2MB in the beginning and 35.9MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-08-31 19:57:40,785 INFO L158 Benchmark]: TraceAbstraction took 1730.93ms. Allocated memory is still 81.8MB. Free memory was 35.3MB in the beginning and 36.7MB in the end (delta: -1.4MB). Peak memory consumption was 145.7kB. Max. memory is 16.1GB. [2023-08-31 19:57:40,785 INFO L158 Benchmark]: Witness Printer took 4.28ms. Allocated memory is still 81.8MB. Free memory is still 36.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 19:57:40,790 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 62.9MB. Free memory is still 40.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 580.75ms. Allocated memory is still 81.8MB. Free memory was 57.8MB in the beginning and 50.7MB in the end (delta: 7.1MB). Peak memory consumption was 24.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.81ms. Allocated memory is still 81.8MB. Free memory was 50.7MB in the beginning and 48.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.07ms. Allocated memory is still 81.8MB. Free memory was 48.6MB in the beginning and 47.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 278.02ms. Allocated memory is still 81.8MB. Free memory was 47.2MB in the beginning and 35.9MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1730.93ms. Allocated memory is still 81.8MB. Free memory was 35.3MB in the beginning and 36.7MB in the end (delta: -1.4MB). Peak memory consumption was 145.7kB. Max. memory is 16.1GB. * Witness Printer took 4.28ms. Allocated memory is still 81.8MB. Free memory is still 36.7MB. 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: 1.0s, 57 PlacesBefore, 23 PlacesAfterwards, 54 TransitionsBefore, 20 TransitionsAfterwards, 850 CoEnabledTransitionPairs, 4 FixpointIterations, 10 TrivialSequentialCompositions, 23 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 0 ChoiceCompositions, 37 TotalNumberOfCompositions, 2064 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1277, independent: 1132, independent conditional: 0, independent unconditional: 1132, dependent: 145, dependent conditional: 0, dependent unconditional: 145, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 483, independent: 450, independent conditional: 0, independent unconditional: 450, dependent: 33, dependent conditional: 0, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1277, independent: 682, independent conditional: 0, independent unconditional: 682, dependent: 112, dependent conditional: 0, dependent unconditional: 112, unknown: 483, unknown conditional: 0, unknown unconditional: 483] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 53, Positive conditional cache size: 0, Positive unconditional cache size: 53, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 922]: Data race detected Data race detected The following path leads to a data race: [L917] 0 int global; [L920] 0 void (*f)() = good; [L926] 0 pthread_t id; [L927] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [={-1:0}, global=0, id={2:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L928] 0 f = bad VAL [={-1:2}, global=0, id={2:0}] [L922] 1 f() VAL [={-1:2}, arg={0:0}, arg={0:0}, global=0] Now there is a data race on ~f~0 between C: f = bad [928] and C: f() [922] - UnprovableResult [Line: 928]: 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 there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 927]: 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: 918]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 918]: 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, 81 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: 1.6s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 33 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 82 IncrementalHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 1 mSDtfsCounter, 82 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=82occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 11 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 19:57:40,825 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