./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/10-synch_02-thread_nonunique.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/10-synch_02-thread_nonunique.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 2b48d13cab05bc3b998f8de65b383ec2ee92eaa2c6f230f8a23e235950b9a5ba --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 02:37:05,974 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 02:37:05,975 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 02:37:06,010 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 02:37:06,011 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 02:37:06,017 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 02:37:06,017 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 02:37:06,018 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 02:37:06,020 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 02:37:06,024 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 02:37:06,024 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 02:37:06,027 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 02:37:06,027 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 02:37:06,029 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 02:37:06,030 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 02:37:06,036 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 02:37:06,036 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 02:37:06,037 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 02:37:06,039 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 02:37:06,040 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 02:37:06,044 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 02:37:06,053 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 02:37:06,054 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 02:37:06,055 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 02:37:06,058 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 02:37:06,064 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 02:37:06,065 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 02:37:06,065 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 02:37:06,066 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 02:37:06,066 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 02:37:06,066 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 02:37:06,067 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 02:37:06,067 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 02:37:06,068 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 02:37:06,068 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 02:37:06,068 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 02:37:06,069 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 02:37:06,069 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 02:37:06,069 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 02:37:06,069 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 02:37:06,070 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 02:37:06,071 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 02:37:06,090 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 02:37:06,091 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 02:37:06,091 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 02:37:06,092 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 02:37:06,092 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 02:37:06,092 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 02:37:06,093 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 02:37:06,093 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 02:37:06,093 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 02:37:06,093 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 02:37:06,094 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 02:37:06,094 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 02:37:06,094 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 02:37:06,094 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 02:37:06,094 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 02:37:06,095 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 02:37:06,095 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 02:37:06,095 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 02:37:06,095 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 02:37:06,095 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 02:37:06,095 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 02:37:06,095 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 02:37:06,096 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 02:37:06,096 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 02:37:06,096 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 02:37:06,096 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 02:37:06,096 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 02:37:06,096 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 02:37:06,096 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 02:37:06,097 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 02:37:06,097 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 02:37:06,097 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 02:37:06,097 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 02:37:06,097 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 02:37:06,097 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 02:37:06,098 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 02:37:06,098 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 02:37:06,098 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b48d13cab05bc3b998f8de65b383ec2ee92eaa2c6f230f8a23e235950b9a5ba Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-29 02:37:06,320 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 02:37:06,335 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 02:37:06,336 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 02:37:06,337 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 02:37:06,337 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 02:37:06,338 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/10-synch_02-thread_nonunique.i [2023-08-29 02:37:07,348 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 02:37:07,535 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 02:37:07,535 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/10-synch_02-thread_nonunique.i [2023-08-29 02:37:07,554 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09a325ca1/f7b2b9e7346b4bcfb2703253cc6c63b0/FLAG9cc63d839 [2023-08-29 02:37:07,570 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09a325ca1/f7b2b9e7346b4bcfb2703253cc6c63b0 [2023-08-29 02:37:07,572 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 02:37:07,573 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 02:37:07,576 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 02:37:07,576 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 02:37:07,578 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 02:37:07,579 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 02:37:07" (1/1) ... [2023-08-29 02:37:07,581 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25f9c8c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:37:07, skipping insertion in model container [2023-08-29 02:37:07,581 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 02:37:07" (1/1) ... [2023-08-29 02:37:07,585 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 02:37:07,630 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 02:37:07,919 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 02:37:07,925 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 02:37:07,956 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 02:37:08,002 INFO L208 MainTranslator]: Completed translation [2023-08-29 02:37:08,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:37:08 WrapperNode [2023-08-29 02:37:08,003 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 02:37:08,004 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 02:37:08,004 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 02:37:08,004 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 02:37:08,008 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:37:08" (1/1) ... [2023-08-29 02:37:08,019 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:37:08" (1/1) ... [2023-08-29 02:37:08,031 INFO L138 Inliner]: procedures = 259, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 44 [2023-08-29 02:37:08,031 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 02:37:08,032 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 02:37:08,032 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 02:37:08,032 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 02:37:08,036 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:37:08" (1/1) ... [2023-08-29 02:37:08,036 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:37:08" (1/1) ... [2023-08-29 02:37:08,040 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:37:08" (1/1) ... [2023-08-29 02:37:08,041 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:37:08" (1/1) ... [2023-08-29 02:37:08,047 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:37:08" (1/1) ... [2023-08-29 02:37:08,050 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:37:08" (1/1) ... [2023-08-29 02:37:08,051 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:37:08" (1/1) ... [2023-08-29 02:37:08,052 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:37:08" (1/1) ... [2023-08-29 02:37:08,053 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 02:37:08,054 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 02:37:08,054 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 02:37:08,054 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 02:37:08,060 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:37:08" (1/1) ... [2023-08-29 02:37:08,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 02:37:08,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 02:37:08,083 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) [2023-08-29 02:37:08,089 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 [2023-08-29 02:37:08,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 02:37:08,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 02:37:08,105 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 02:37:08,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 02:37:08,105 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-29 02:37:08,105 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-29 02:37:08,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 02:37:08,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 02:37:08,106 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 02:37:08,216 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 02:37:08,218 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 02:37:08,336 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 02:37:08,341 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 02:37:08,341 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-08-29 02:37:08,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 02:37:08 BoogieIcfgContainer [2023-08-29 02:37:08,343 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 02:37:08,345 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 02:37:08,345 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 02:37:08,347 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 02:37:08,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 02:37:07" (1/3) ... [2023-08-29 02:37:08,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34ea0894 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 02:37:08, skipping insertion in model container [2023-08-29 02:37:08,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:37:08" (2/3) ... [2023-08-29 02:37:08,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34ea0894 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 02:37:08, skipping insertion in model container [2023-08-29 02:37:08,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 02:37:08" (3/3) ... [2023-08-29 02:37:08,349 INFO L112 eAbstractionObserver]: Analyzing ICFG 10-synch_02-thread_nonunique.i [2023-08-29 02:37:08,356 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 02:37:08,363 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 02:37:08,363 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-08-29 02:37:08,363 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 02:37:08,393 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-29 02:37:08,416 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 52 places, 52 transitions, 112 flow [2023-08-29 02:37:08,437 INFO L130 PetriNetUnfolder]: 5/74 cut-off events. [2023-08-29 02:37:08,437 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 02:37:08,439 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 74 events. 5/74 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 124 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 36. Up to 4 conditions per place. [2023-08-29 02:37:08,440 INFO L82 GeneralOperation]: Start removeDead. Operand has 52 places, 52 transitions, 112 flow [2023-08-29 02:37:08,442 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 52 places, 52 transitions, 112 flow [2023-08-29 02:37:08,444 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 02:37:08,450 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 52 places, 52 transitions, 112 flow [2023-08-29 02:37:08,452 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 52 places, 52 transitions, 112 flow [2023-08-29 02:37:08,452 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 52 places, 52 transitions, 112 flow [2023-08-29 02:37:08,468 INFO L130 PetriNetUnfolder]: 5/74 cut-off events. [2023-08-29 02:37:08,469 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 02:37:08,469 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 74 events. 5/74 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 124 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 36. Up to 4 conditions per place. [2023-08-29 02:37:08,470 INFO L119 LiptonReduction]: Number of co-enabled transitions 504 [2023-08-29 02:37:09,408 INFO L134 LiptonReduction]: Checked pairs total: 475 [2023-08-29 02:37:09,408 INFO L136 LiptonReduction]: Total number of compositions: 46 [2023-08-29 02:37:09,433 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 02:37:09,437 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;@34ad586f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 02:37:09,437 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-08-29 02:37:09,439 INFO L130 PetriNetUnfolder]: 0/4 cut-off events. [2023-08-29 02:37:09,439 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:37:09,452 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:37:09,453 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-29 02:37:09,453 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2023-08-29 02:37:09,462 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:37:09,463 INFO L85 PathProgramCache]: Analyzing trace with hash 205829, now seen corresponding path program 1 times [2023-08-29 02:37:09,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:37:09,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684377670] [2023-08-29 02:37:09,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:37:09,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:37:09,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:37:09,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:37:09,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:37:09,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684377670] [2023-08-29 02:37:09,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684377670] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:37:09,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:37:09,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 02:37:09,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408964277] [2023-08-29 02:37:09,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:37:09,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 02:37:09,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:37:09,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 02:37:09,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 02:37:09,761 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 98 [2023-08-29 02:37:09,763 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 15 places, 13 transitions, 34 flow. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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) [2023-08-29 02:37:09,763 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:37:09,763 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 98 [2023-08-29 02:37:09,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:37:09,788 INFO L130 PetriNetUnfolder]: 4/22 cut-off events. [2023-08-29 02:37:09,789 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 02:37:09,789 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 22 events. 4/22 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 28 event pairs, 2 based on Foata normal form. 0/19 useless extension candidates. Maximal degree in co-relation 26. Up to 11 conditions per place. [2023-08-29 02:37:09,790 INFO L137 encePairwiseOnDemand]: 91/98 looper letters, 0 selfloop transitions, 0 changer transitions 14/14 dead transitions. [2023-08-29 02:37:09,790 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 15 places, 14 transitions, 62 flow [2023-08-29 02:37:09,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 02:37:09,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 02:37:09,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 139 transitions. [2023-08-29 02:37:09,800 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47278911564625853 [2023-08-29 02:37:09,801 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 139 transitions. [2023-08-29 02:37:09,801 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 139 transitions. [2023-08-29 02:37:09,802 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:37:09,804 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 139 transitions. [2023-08-29 02:37:09,808 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 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) [2023-08-29 02:37:09,812 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 98.0) internal successors, (392), 4 states have internal predecessors, (392), 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) [2023-08-29 02:37:09,812 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 98.0) internal successors, (392), 4 states have internal predecessors, (392), 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) [2023-08-29 02:37:09,814 INFO L175 Difference]: Start difference. First operand has 15 places, 13 transitions, 34 flow. Second operand 3 states and 139 transitions. [2023-08-29 02:37:09,815 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 15 places, 14 transitions, 62 flow [2023-08-29 02:37:09,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 15 places, 14 transitions, 62 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 02:37:09,817 INFO L231 Difference]: Finished difference. Result has 15 places, 0 transitions, 0 flow [2023-08-29 02:37:09,818 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=30, PETRI_DIFFERENCE_MINUEND_PLACES=13, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=15, PETRI_TRANSITIONS=0} [2023-08-29 02:37:09,820 INFO L281 CegarLoopForPetriNet]: 15 programPoint places, 0 predicate places. [2023-08-29 02:37:09,820 INFO L495 AbstractCegarLoop]: Abstraction has has 15 places, 0 transitions, 0 flow [2023-08-29 02:37:09,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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) [2023-08-29 02:37:09,822 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (2 of 3 remaining) [2023-08-29 02:37:09,823 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 3 remaining) [2023-08-29 02:37:09,823 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 3 remaining) [2023-08-29 02:37:09,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 02:37:09,823 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-29 02:37:09,825 INFO L307 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE,SAFE,SAFE (1/2) [2023-08-29 02:37:09,830 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 52 places, 52 transitions, 112 flow [2023-08-29 02:37:09,842 INFO L130 PetriNetUnfolder]: 5/74 cut-off events. [2023-08-29 02:37:09,842 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 02:37:09,842 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 74 events. 5/74 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 124 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 36. Up to 4 conditions per place. [2023-08-29 02:37:09,843 INFO L82 GeneralOperation]: Start removeDead. Operand has 52 places, 52 transitions, 112 flow [2023-08-29 02:37:09,843 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 32 places, 29 transitions, 63 flow [2023-08-29 02:37:09,843 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 02:37:09,843 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 29 transitions, 63 flow [2023-08-29 02:37:09,844 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 29 transitions, 63 flow [2023-08-29 02:37:09,844 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 32 places, 29 transitions, 63 flow [2023-08-29 02:37:09,847 INFO L130 PetriNetUnfolder]: 0/33 cut-off events. [2023-08-29 02:37:09,847 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:37:09,848 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38 conditions, 33 events. 0/33 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 19 event pairs, 0 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2023-08-29 02:37:09,848 INFO L119 LiptonReduction]: Number of co-enabled transitions 180 [2023-08-29 02:37:10,399 INFO L134 LiptonReduction]: Checked pairs total: 170 [2023-08-29 02:37:10,399 INFO L136 LiptonReduction]: Total number of compositions: 29 [2023-08-29 02:37:10,400 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-29 02:37:10,401 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;@34ad586f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 02:37:10,401 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-29 02:37:10,402 INFO L130 PetriNetUnfolder]: 0/5 cut-off events. [2023-08-29 02:37:10,402 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:37:10,402 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:37:10,402 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-29 02:37:10,402 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-29 02:37:10,402 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:37:10,402 INFO L85 PathProgramCache]: Analyzing trace with hash 7253418, now seen corresponding path program 1 times [2023-08-29 02:37:10,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:37:10,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234078379] [2023-08-29 02:37:10,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:37:10,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:37:10,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 02:37:10,416 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-29 02:37:10,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 02:37:10,448 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-29 02:37:10,448 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-29 02:37:10,454 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-29 02:37:10,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 02:37:10,454 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-29 02:37:10,455 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (2/2) [2023-08-29 02:37:10,455 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-29 02:37:10,455 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-08-29 02:37:10,464 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-29 02:37:10,469 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 64 places, 63 transitions, 144 flow [2023-08-29 02:37:10,487 INFO L130 PetriNetUnfolder]: 10/137 cut-off events. [2023-08-29 02:37:10,487 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-08-29 02:37:10,488 INFO L83 FinitePrefix]: Finished finitePrefix Result has 151 conditions, 137 events. 10/137 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 278 event pairs, 0 based on Foata normal form. 0/117 useless extension candidates. Maximal degree in co-relation 76. Up to 8 conditions per place. [2023-08-29 02:37:10,488 INFO L82 GeneralOperation]: Start removeDead. Operand has 64 places, 63 transitions, 144 flow [2023-08-29 02:37:10,489 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 64 places, 63 transitions, 144 flow [2023-08-29 02:37:10,489 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 02:37:10,489 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 63 transitions, 144 flow [2023-08-29 02:37:10,489 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 63 transitions, 144 flow [2023-08-29 02:37:10,489 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 64 places, 63 transitions, 144 flow [2023-08-29 02:37:10,497 INFO L130 PetriNetUnfolder]: 10/137 cut-off events. [2023-08-29 02:37:10,497 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-08-29 02:37:10,498 INFO L83 FinitePrefix]: Finished finitePrefix Result has 151 conditions, 137 events. 10/137 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 278 event pairs, 0 based on Foata normal form. 0/117 useless extension candidates. Maximal degree in co-relation 76. Up to 8 conditions per place. [2023-08-29 02:37:10,499 INFO L119 LiptonReduction]: Number of co-enabled transitions 1368 [2023-08-29 02:37:11,171 INFO L134 LiptonReduction]: Checked pairs total: 2602 [2023-08-29 02:37:11,172 INFO L136 LiptonReduction]: Total number of compositions: 44 [2023-08-29 02:37:11,173 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 02:37:11,174 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;@34ad586f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 02:37:11,174 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-08-29 02:37:11,174 INFO L130 PetriNetUnfolder]: 0/3 cut-off events. [2023-08-29 02:37:11,175 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:37:11,175 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:37:11,175 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-29 02:37:11,175 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2023-08-29 02:37:11,175 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:37:11,175 INFO L85 PathProgramCache]: Analyzing trace with hash 352824, now seen corresponding path program 1 times [2023-08-29 02:37:11,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:37:11,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515246220] [2023-08-29 02:37:11,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:37:11,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:37:11,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:37:11,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:37:11,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:37:11,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515246220] [2023-08-29 02:37:11,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515246220] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:37:11,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:37:11,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 02:37:11,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225528365] [2023-08-29 02:37:11,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:37:11,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 02:37:11,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:37:11,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 02:37:11,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 02:37:11,230 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 107 [2023-08-29 02:37:11,231 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 23 transitions, 64 flow. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 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) [2023-08-29 02:37:11,231 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:37:11,231 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 107 [2023-08-29 02:37:11,231 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:37:11,266 INFO L130 PetriNetUnfolder]: 80/216 cut-off events. [2023-08-29 02:37:11,266 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2023-08-29 02:37:11,267 INFO L83 FinitePrefix]: Finished finitePrefix Result has 417 conditions, 216 events. 80/216 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 941 event pairs, 36 based on Foata normal form. 0/197 useless extension candidates. Maximal degree in co-relation 175. Up to 104 conditions per place. [2023-08-29 02:37:11,267 INFO L137 encePairwiseOnDemand]: 101/107 looper letters, 18 selfloop transitions, 4 changer transitions 3/32 dead transitions. [2023-08-29 02:37:11,268 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 32 transitions, 138 flow [2023-08-29 02:37:11,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 02:37:11,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 02:37:11,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 176 transitions. [2023-08-29 02:37:11,269 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5482866043613707 [2023-08-29 02:37:11,269 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 176 transitions. [2023-08-29 02:37:11,269 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 176 transitions. [2023-08-29 02:37:11,269 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:37:11,270 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 176 transitions. [2023-08-29 02:37:11,270 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 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) [2023-08-29 02:37:11,271 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 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) [2023-08-29 02:37:11,271 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 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) [2023-08-29 02:37:11,271 INFO L175 Difference]: Start difference. First operand has 26 places, 23 transitions, 64 flow. Second operand 3 states and 176 transitions. [2023-08-29 02:37:11,271 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 32 transitions, 138 flow [2023-08-29 02:37:11,272 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 32 transitions, 138 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 02:37:11,273 INFO L231 Difference]: Finished difference. Result has 28 places, 23 transitions, 80 flow [2023-08-29 02:37:11,273 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=80, PETRI_PLACES=28, PETRI_TRANSITIONS=23} [2023-08-29 02:37:11,274 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 2 predicate places. [2023-08-29 02:37:11,274 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 23 transitions, 80 flow [2023-08-29 02:37:11,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 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) [2023-08-29 02:37:11,274 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:37:11,274 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-29 02:37:11,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 02:37:11,275 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2023-08-29 02:37:11,275 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:37:11,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1935736728, now seen corresponding path program 1 times [2023-08-29 02:37:11,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:37:11,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268119251] [2023-08-29 02:37:11,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:37:11,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:37:11,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:37:11,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:37:11,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:37:11,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268119251] [2023-08-29 02:37:11,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268119251] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:37:11,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:37:11,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 02:37:11,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915859908] [2023-08-29 02:37:11,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:37:11,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 02:37:11,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:37:11,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 02:37:11,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 02:37:11,325 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 107 [2023-08-29 02:37:11,325 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 23 transitions, 80 flow. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 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) [2023-08-29 02:37:11,326 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:37:11,326 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 107 [2023-08-29 02:37:11,326 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:37:11,371 INFO L130 PetriNetUnfolder]: 179/384 cut-off events. [2023-08-29 02:37:11,373 INFO L131 PetriNetUnfolder]: For 132/132 co-relation queries the response was YES. [2023-08-29 02:37:11,376 INFO L83 FinitePrefix]: Finished finitePrefix Result has 855 conditions, 384 events. 179/384 cut-off events. For 132/132 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1667 event pairs, 130 based on Foata normal form. 0/370 useless extension candidates. Maximal degree in co-relation 414. Up to 283 conditions per place. [2023-08-29 02:37:11,377 INFO L137 encePairwiseOnDemand]: 103/107 looper letters, 25 selfloop transitions, 3 changer transitions 4/36 dead transitions. [2023-08-29 02:37:11,378 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 36 transitions, 191 flow [2023-08-29 02:37:11,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 02:37:11,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 02:37:11,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 184 transitions. [2023-08-29 02:37:11,380 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.573208722741433 [2023-08-29 02:37:11,381 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 184 transitions. [2023-08-29 02:37:11,381 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 184 transitions. [2023-08-29 02:37:11,381 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:37:11,381 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 184 transitions. [2023-08-29 02:37:11,382 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 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) [2023-08-29 02:37:11,383 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 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) [2023-08-29 02:37:11,384 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 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) [2023-08-29 02:37:11,384 INFO L175 Difference]: Start difference. First operand has 28 places, 23 transitions, 80 flow. Second operand 3 states and 184 transitions. [2023-08-29 02:37:11,384 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 36 transitions, 191 flow [2023-08-29 02:37:11,385 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 36 transitions, 184 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 02:37:11,386 INFO L231 Difference]: Finished difference. Result has 30 places, 25 transitions, 95 flow [2023-08-29 02:37:11,386 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=95, PETRI_PLACES=30, PETRI_TRANSITIONS=25} [2023-08-29 02:37:11,387 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 4 predicate places. [2023-08-29 02:37:11,387 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 25 transitions, 95 flow [2023-08-29 02:37:11,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 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) [2023-08-29 02:37:11,388 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:37:11,388 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:37:11,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 02:37:11,389 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2023-08-29 02:37:11,389 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:37:11,390 INFO L85 PathProgramCache]: Analyzing trace with hash 843059889, now seen corresponding path program 1 times [2023-08-29 02:37:11,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:37:11,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177325407] [2023-08-29 02:37:11,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:37:11,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:37:11,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:37:11,432 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-29 02:37:11,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:37:11,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177325407] [2023-08-29 02:37:11,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177325407] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:37:11,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:37:11,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 02:37:11,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368444536] [2023-08-29 02:37:11,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:37:11,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 02:37:11,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:37:11,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 02:37:11,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 02:37:11,444 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 107 [2023-08-29 02:37:11,446 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 25 transitions, 95 flow. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 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) [2023-08-29 02:37:11,446 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:37:11,446 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 107 [2023-08-29 02:37:11,446 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:37:11,509 INFO L130 PetriNetUnfolder]: 187/388 cut-off events. [2023-08-29 02:37:11,509 INFO L131 PetriNetUnfolder]: For 202/206 co-relation queries the response was YES. [2023-08-29 02:37:11,512 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1014 conditions, 388 events. 187/388 cut-off events. For 202/206 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1584 event pairs, 134 based on Foata normal form. 0/373 useless extension candidates. Maximal degree in co-relation 338. Up to 310 conditions per place. [2023-08-29 02:37:11,514 INFO L137 encePairwiseOnDemand]: 103/107 looper letters, 22 selfloop transitions, 4 changer transitions 6/36 dead transitions. [2023-08-29 02:37:11,514 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 36 transitions, 197 flow [2023-08-29 02:37:11,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 02:37:11,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 02:37:11,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 183 transitions. [2023-08-29 02:37:11,516 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5700934579439252 [2023-08-29 02:37:11,516 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 183 transitions. [2023-08-29 02:37:11,516 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 183 transitions. [2023-08-29 02:37:11,517 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:37:11,517 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 183 transitions. [2023-08-29 02:37:11,517 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 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) [2023-08-29 02:37:11,518 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 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) [2023-08-29 02:37:11,518 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 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) [2023-08-29 02:37:11,518 INFO L175 Difference]: Start difference. First operand has 30 places, 25 transitions, 95 flow. Second operand 3 states and 183 transitions. [2023-08-29 02:37:11,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 36 transitions, 197 flow [2023-08-29 02:37:11,519 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 36 transitions, 193 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 02:37:11,520 INFO L231 Difference]: Finished difference. Result has 32 places, 25 transitions, 108 flow [2023-08-29 02:37:11,520 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=108, PETRI_PLACES=32, PETRI_TRANSITIONS=25} [2023-08-29 02:37:11,521 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 6 predicate places. [2023-08-29 02:37:11,521 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 25 transitions, 108 flow [2023-08-29 02:37:11,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 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) [2023-08-29 02:37:11,521 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:37:11,521 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:37:11,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 02:37:11,522 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2023-08-29 02:37:11,522 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:37:11,522 INFO L85 PathProgramCache]: Analyzing trace with hash -864262915, now seen corresponding path program 1 times [2023-08-29 02:37:11,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:37:11,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088164506] [2023-08-29 02:37:11,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:37:11,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:37:11,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 02:37:11,536 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-29 02:37:11,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 02:37:11,551 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-29 02:37:11,554 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-29 02:37:11,554 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 4 remaining) [2023-08-29 02:37:11,555 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (2 of 4 remaining) [2023-08-29 02:37:11,555 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 4 remaining) [2023-08-29 02:37:11,555 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 4 remaining) [2023-08-29 02:37:11,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 02:37:11,555 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-08-29 02:37:11,556 INFO L307 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was UNSAFE,UNKNOWN,UNKNOWN,UNKNOWN (1/2) [2023-08-29 02:37:11,557 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2023-08-29 02:37:11,557 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 02:37:11,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 02:37:11 BasicIcfg [2023-08-29 02:37:11,575 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 02:37:11,575 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 02:37:11,575 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 02:37:11,576 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 02:37:11,576 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 02:37:08" (3/4) ... [2023-08-29 02:37:11,577 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-29 02:37:11,577 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 02:37:11,579 INFO L158 Benchmark]: Toolchain (without parser) took 4004.78ms. Allocated memory was 67.1MB in the beginning and 98.6MB in the end (delta: 31.5MB). Free memory was 35.8MB in the beginning and 61.4MB in the end (delta: -25.6MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. [2023-08-29 02:37:11,579 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 52.4MB. Free memory was 30.9MB in the beginning and 30.9MB in the end (delta: 45.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 02:37:11,579 INFO L158 Benchmark]: CACSL2BoogieTranslator took 427.25ms. Allocated memory is still 67.1MB. Free memory was 35.6MB in the beginning and 43.1MB in the end (delta: -7.4MB). Peak memory consumption was 12.2MB. Max. memory is 16.1GB. [2023-08-29 02:37:11,580 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.40ms. Allocated memory is still 67.1MB. 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. [2023-08-29 02:37:11,580 INFO L158 Benchmark]: Boogie Preprocessor took 21.57ms. Allocated memory is still 67.1MB. Free memory was 40.9MB in the beginning and 39.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 02:37:11,581 INFO L158 Benchmark]: RCFGBuilder took 288.93ms. Allocated memory is still 67.1MB. Free memory was 39.4MB in the beginning and 42.8MB in the end (delta: -3.4MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. [2023-08-29 02:37:11,581 INFO L158 Benchmark]: TraceAbstraction took 3230.38ms. Allocated memory was 67.1MB in the beginning and 98.6MB in the end (delta: 31.5MB). Free memory was 42.2MB in the beginning and 62.3MB in the end (delta: -20.1MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. [2023-08-29 02:37:11,581 INFO L158 Benchmark]: Witness Printer took 2.27ms. Allocated memory is still 98.6MB. Free memory was 62.3MB in the beginning and 61.4MB in the end (delta: 853.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 02:37:11,583 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 52.4MB. Free memory was 30.9MB in the beginning and 30.9MB in the end (delta: 45.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 427.25ms. Allocated memory is still 67.1MB. Free memory was 35.6MB in the beginning and 43.1MB in the end (delta: -7.4MB). Peak memory consumption was 12.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.40ms. Allocated memory is still 67.1MB. 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 21.57ms. Allocated memory is still 67.1MB. Free memory was 40.9MB in the beginning and 39.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 288.93ms. Allocated memory is still 67.1MB. Free memory was 39.4MB in the beginning and 42.8MB in the end (delta: -3.4MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. * TraceAbstraction took 3230.38ms. Allocated memory was 67.1MB in the beginning and 98.6MB in the end (delta: 31.5MB). Free memory was 42.2MB in the beginning and 62.3MB in the end (delta: -20.1MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. * Witness Printer took 2.27ms. Allocated memory is still 98.6MB. Free memory was 62.3MB in the beginning and 61.4MB in the end (delta: 853.3kB). 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: 1.0s, 52 PlacesBefore, 15 PlacesAfterwards, 52 TransitionsBefore, 13 TransitionsAfterwards, 504 CoEnabledTransitionPairs, 4 FixpointIterations, 11 TrivialSequentialCompositions, 29 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 46 TotalNumberOfCompositions, 475 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 475, independent: 475, independent conditional: 0, independent unconditional: 475, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 269, independent: 269, independent conditional: 0, independent unconditional: 269, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 475, independent: 206, independent conditional: 0, independent unconditional: 206, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 269, unknown conditional: 0, unknown unconditional: 269] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.6s, 32 PlacesBefore, 9 PlacesAfterwards, 29 TransitionsBefore, 6 TransitionsAfterwards, 180 CoEnabledTransitionPairs, 5 FixpointIterations, 9 TrivialSequentialCompositions, 15 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 29 TotalNumberOfCompositions, 170 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 170, independent: 170, independent conditional: 0, independent unconditional: 170, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 102, independent: 102, independent conditional: 0, independent unconditional: 102, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 170, independent: 68, independent conditional: 0, independent unconditional: 68, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 102, unknown conditional: 0, unknown unconditional: 102] , Statistics on independence cache: Total cache size (in pairs): 2, Positive cache size: 2, Positive conditional cache size: 0, Positive unconditional cache size: 2, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.7s, 64 PlacesBefore, 26 PlacesAfterwards, 63 TransitionsBefore, 23 TransitionsAfterwards, 1368 CoEnabledTransitionPairs, 4 FixpointIterations, 8 TrivialSequentialCompositions, 30 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 44 TotalNumberOfCompositions, 2602 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1439, independent: 1378, independent conditional: 0, independent unconditional: 1378, dependent: 61, dependent conditional: 0, dependent unconditional: 61, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 683, independent: 672, independent conditional: 0, independent unconditional: 672, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1439, independent: 706, independent conditional: 0, independent unconditional: 706, dependent: 50, dependent conditional: 0, dependent unconditional: 50, unknown: 683, unknown conditional: 0, unknown unconditional: 683] , Statistics on independence cache: Total cache size (in pairs): 62, Positive cache size: 56, Positive conditional cache size: 0, Positive unconditional cache size: 56, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 919]: Data race detected Data race detected The following path leads to a data race: [L917] 0 int myglobal; [L923] 0 pthread_t id[10]; [L924] 0 int i; [L925] 0 i=0 VAL [i=0, id={2:0}, myglobal=0] [L925] COND TRUE 0 i<10 [L926] FCALL, FORK 0 pthread_create(&id[i], ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, i=0, id={2:0}, myglobal=0, pthread_create(&id[i], ((void *)0), t_fun, ((void *)0))=-2] [L925] 0 i++ VAL [arg={0:0}, i=1, id={2:0}, myglobal=0] [L925] COND TRUE 0 i<10 [L919] 1 myglobal=42 VAL [arg={0:0}, arg={0:0}, myglobal=42, myglobal=42=43] [L926] FCALL, FORK 0 pthread_create(&id[i], ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, arg={0:0}, i=1, id={2:0}, myglobal=42, myglobal=42=43, pthread_create(&id[i], ((void *)0), t_fun, ((void *)0))=-1] [L919] 2 myglobal=42 VAL [arg={0:0}, arg={0:0}, myglobal=42, myglobal=42=44] Now there is a data race, but we were unable to determine exactly which statements and variables are involved. - UnprovableResult [Line: 928]: 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, 60 locations, 4 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: 1.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 47 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 44 IncrementalHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 2 mSDtfsCounter, 44 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, InterpolantAutomatonStates: 3, 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, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 4 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 70 locations, 5 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: 1.1s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 93 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 46 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 158 IncrementalHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 11 mSDtfsCounter, 158 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=108occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 22 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2/2 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 - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency with 1 thread instances CFG has 3 procedures, 60 locations, 4 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: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.6s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, InterpolantAutomatonStates: 0, 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, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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! [2023-08-29 02:37:11,639 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE