./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/04-mutex_44-malloc_sound.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/04-mutex_44-malloc_sound.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 8d85985769788fe03edac99b0e2515850ec4c864737a042b27bc3e336515bcde --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 17:29:59,428 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 17:29:59,431 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 17:29:59,475 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 17:29:59,477 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 17:29:59,480 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 17:29:59,482 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 17:29:59,485 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 17:29:59,486 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 17:29:59,491 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 17:29:59,492 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 17:29:59,494 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 17:29:59,494 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 17:29:59,496 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 17:29:59,498 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 17:29:59,504 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 17:29:59,505 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 17:29:59,506 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 17:29:59,508 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 17:29:59,520 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 17:29:59,522 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 17:29:59,523 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 17:29:59,524 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 17:29:59,525 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 17:29:59,530 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 17:29:59,530 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 17:29:59,532 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 17:29:59,533 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 17:29:59,535 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 17:29:59,536 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 17:29:59,536 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 17:29:59,541 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 17:29:59,542 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 17:29:59,543 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 17:29:59,544 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 17:29:59,545 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 17:29:59,545 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 17:29:59,546 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 17:29:59,546 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 17:29:59,547 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 17:29:59,553 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 17:29:59,554 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 17:29:59,587 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 17:29:59,587 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 17:29:59,588 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 17:29:59,589 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 17:29:59,589 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 17:29:59,590 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 17:29:59,590 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 17:29:59,590 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 17:29:59,591 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 17:29:59,591 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 17:29:59,592 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 17:29:59,592 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 17:29:59,592 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 17:29:59,592 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 17:29:59,592 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 17:29:59,593 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 17:29:59,593 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 17:29:59,593 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 17:29:59,593 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 17:29:59,593 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 17:29:59,594 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 17:29:59,594 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 17:29:59,594 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 17:29:59,594 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 17:29:59,594 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 17:29:59,595 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 17:29:59,595 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 17:29:59,595 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 17:29:59,595 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 17:29:59,595 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 17:29:59,595 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 17:29:59,596 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 17:29:59,596 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 17:29:59,596 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 17:29:59,596 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 17:29:59,596 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 17:29:59,597 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 17:29:59,597 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d85985769788fe03edac99b0e2515850ec4c864737a042b27bc3e336515bcde Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-29 17:29:59,857 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 17:29:59,876 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 17:29:59,879 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 17:29:59,879 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 17:29:59,880 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 17:29:59,881 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_44-malloc_sound.i [2023-08-29 17:30:01,053 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 17:30:01,299 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 17:30:01,308 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_44-malloc_sound.i [2023-08-29 17:30:01,327 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/585e10157/0a740676ceae42eaac1e60cd7311f587/FLAG8cbe9fd7e [2023-08-29 17:30:01,339 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/585e10157/0a740676ceae42eaac1e60cd7311f587 [2023-08-29 17:30:01,344 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 17:30:01,345 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 17:30:01,346 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 17:30:01,346 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 17:30:01,349 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 17:30:01,349 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 05:30:01" (1/1) ... [2023-08-29 17:30:01,350 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@758f7b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:30:01, skipping insertion in model container [2023-08-29 17:30:01,350 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 05:30:01" (1/1) ... [2023-08-29 17:30:01,355 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 17:30:01,393 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 17:30:01,774 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 17:30:01,784 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 17:30:01,838 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 17:30:01,897 INFO L208 MainTranslator]: Completed translation [2023-08-29 17:30:01,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:30:01 WrapperNode [2023-08-29 17:30:01,898 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 17:30:01,899 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 17:30:01,900 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 17:30:01,900 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 17:30:01,906 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:30:01" (1/1) ... [2023-08-29 17:30:01,933 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:30:01" (1/1) ... [2023-08-29 17:30:01,960 INFO L138 Inliner]: procedures = 263, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 62 [2023-08-29 17:30:01,961 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 17:30:01,962 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 17:30:01,962 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 17:30:01,962 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 17:30:01,969 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:30:01" (1/1) ... [2023-08-29 17:30:01,970 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:30:01" (1/1) ... [2023-08-29 17:30:01,981 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:30:01" (1/1) ... [2023-08-29 17:30:01,982 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:30:01" (1/1) ... [2023-08-29 17:30:01,988 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:30:01" (1/1) ... [2023-08-29 17:30:01,996 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:30:01" (1/1) ... [2023-08-29 17:30:01,998 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:30:01" (1/1) ... [2023-08-29 17:30:02,003 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:30:01" (1/1) ... [2023-08-29 17:30:02,005 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 17:30:02,010 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 17:30:02,010 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 17:30:02,010 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 17:30:02,012 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:30:01" (1/1) ... [2023-08-29 17:30:02,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 17:30:02,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 17:30:02,046 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 17:30:02,072 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 17:30:02,085 INFO L130 BoogieDeclarations]: Found specification of procedure f [2023-08-29 17:30:02,085 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2023-08-29 17:30:02,085 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 17:30:02,085 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 17:30:02,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 17:30:02,086 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 17:30:02,086 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-29 17:30:02,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 17:30:02,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 17:30:02,087 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 17:30:02,226 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 17:30:02,228 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 17:30:02,372 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 17:30:02,378 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 17:30:02,378 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-08-29 17:30:02,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 05:30:02 BoogieIcfgContainer [2023-08-29 17:30:02,381 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 17:30:02,382 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 17:30:02,382 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 17:30:02,385 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 17:30:02,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 05:30:01" (1/3) ... [2023-08-29 17:30:02,386 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6922f09c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 05:30:02, skipping insertion in model container [2023-08-29 17:30:02,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:30:01" (2/3) ... [2023-08-29 17:30:02,386 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6922f09c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 05:30:02, skipping insertion in model container [2023-08-29 17:30:02,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 05:30:02" (3/3) ... [2023-08-29 17:30:02,388 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_44-malloc_sound.i [2023-08-29 17:30:02,394 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 17:30:02,403 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 17:30:02,403 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-08-29 17:30:02,404 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 17:30:02,441 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-29 17:30:02,469 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 88 places, 88 transitions, 181 flow [2023-08-29 17:30:02,500 INFO L130 PetriNetUnfolder]: 4/87 cut-off events. [2023-08-29 17:30:02,500 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:30:02,503 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 87 events. 4/87 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 159 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2023-08-29 17:30:02,504 INFO L82 GeneralOperation]: Start removeDead. Operand has 88 places, 88 transitions, 181 flow [2023-08-29 17:30:02,507 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 87 places, 87 transitions, 177 flow [2023-08-29 17:30:02,510 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 17:30:02,518 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 87 transitions, 177 flow [2023-08-29 17:30:02,520 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 87 transitions, 177 flow [2023-08-29 17:30:02,521 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 87 places, 87 transitions, 177 flow [2023-08-29 17:30:02,536 INFO L130 PetriNetUnfolder]: 4/87 cut-off events. [2023-08-29 17:30:02,537 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:30:02,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 87 events. 4/87 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 159 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2023-08-29 17:30:02,538 INFO L119 LiptonReduction]: Number of co-enabled transitions 960 [2023-08-29 17:30:04,396 INFO L134 LiptonReduction]: Checked pairs total: 3682 [2023-08-29 17:30:04,396 INFO L136 LiptonReduction]: Total number of compositions: 79 [2023-08-29 17:30:04,409 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 17:30:04,415 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;@2ed8487c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 17:30:04,415 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2023-08-29 17:30:04,417 INFO L130 PetriNetUnfolder]: 1/3 cut-off events. [2023-08-29 17:30:04,417 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:30:04,418 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:30:04,418 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-08-29 17:30:04,419 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-08-29 17:30:04,423 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:30:04,423 INFO L85 PathProgramCache]: Analyzing trace with hash 10082, now seen corresponding path program 1 times [2023-08-29 17:30:04,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:30:04,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189417390] [2023-08-29 17:30:04,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:30:04,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:30:04,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:30:04,548 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 17:30:04,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:30:04,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189417390] [2023-08-29 17:30:04,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189417390] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:30:04,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:30:04,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-29 17:30:04,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668319669] [2023-08-29 17:30:04,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:30:04,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 17:30:04,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:30:04,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 17:30:04,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 17:30:04,587 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 167 [2023-08-29 17:30:04,590 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 28 transitions, 59 flow. Second operand has 2 states, 2 states have (on average 87.0) internal successors, (174), 2 states have internal predecessors, (174), 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 17:30:04,590 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:30:04,590 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 167 [2023-08-29 17:30:04,591 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:30:04,650 INFO L130 PetriNetUnfolder]: 21/79 cut-off events. [2023-08-29 17:30:04,651 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:30:04,652 INFO L83 FinitePrefix]: Finished finitePrefix Result has 137 conditions, 79 events. 21/79 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 251 event pairs, 20 based on Foata normal form. 6/75 useless extension candidates. Maximal degree in co-relation 124. Up to 54 conditions per place. [2023-08-29 17:30:04,654 INFO L137 encePairwiseOnDemand]: 163/167 looper letters, 13 selfloop transitions, 0 changer transitions 0/24 dead transitions. [2023-08-29 17:30:04,655 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 24 transitions, 77 flow [2023-08-29 17:30:04,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 17:30:04,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 17:30:04,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 189 transitions. [2023-08-29 17:30:04,668 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5658682634730539 [2023-08-29 17:30:04,669 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 189 transitions. [2023-08-29 17:30:04,669 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 189 transitions. [2023-08-29 17:30:04,671 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:30:04,673 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 189 transitions. [2023-08-29 17:30:04,679 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 94.5) internal successors, (189), 2 states have internal predecessors, (189), 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 17:30:04,685 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 167.0) internal successors, (501), 3 states have internal predecessors, (501), 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 17:30:04,686 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 167.0) internal successors, (501), 3 states have internal predecessors, (501), 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 17:30:04,687 INFO L175 Difference]: Start difference. First operand has 31 places, 28 transitions, 59 flow. Second operand 2 states and 189 transitions. [2023-08-29 17:30:04,688 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 24 transitions, 77 flow [2023-08-29 17:30:04,697 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 24 transitions, 76 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 17:30:04,699 INFO L231 Difference]: Finished difference. Result has 27 places, 24 transitions, 50 flow [2023-08-29 17:30:04,701 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=50, PETRI_PLACES=27, PETRI_TRANSITIONS=24} [2023-08-29 17:30:04,704 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, -4 predicate places. [2023-08-29 17:30:04,704 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 24 transitions, 50 flow [2023-08-29 17:30:04,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 87.0) internal successors, (174), 2 states have internal predecessors, (174), 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 17:30:04,705 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:30:04,705 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-29 17:30:04,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 17:30:04,705 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-08-29 17:30:04,712 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:30:04,712 INFO L85 PathProgramCache]: Analyzing trace with hash 709137513, now seen corresponding path program 1 times [2023-08-29 17:30:04,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:30:04,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366883296] [2023-08-29 17:30:04,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:30:04,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:30:04,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:30:04,832 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 17:30:04,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:30:04,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366883296] [2023-08-29 17:30:04,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366883296] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:30:04,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:30:04,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 17:30:04,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345430959] [2023-08-29 17:30:04,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:30:04,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 17:30:04,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:30:04,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 17:30:04,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 17:30:04,851 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 167 [2023-08-29 17:30:04,852 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 24 transitions, 50 flow. Second operand has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 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 17:30:04,853 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:30:04,853 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 167 [2023-08-29 17:30:04,853 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:30:04,898 INFO L130 PetriNetUnfolder]: 21/80 cut-off events. [2023-08-29 17:30:04,899 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:30:04,899 INFO L83 FinitePrefix]: Finished finitePrefix Result has 139 conditions, 80 events. 21/80 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 251 event pairs, 20 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 136. Up to 54 conditions per place. [2023-08-29 17:30:04,900 INFO L137 encePairwiseOnDemand]: 164/167 looper letters, 12 selfloop transitions, 2 changer transitions 0/25 dead transitions. [2023-08-29 17:30:04,900 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 25 transitions, 80 flow [2023-08-29 17:30:04,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 17:30:04,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 17:30:04,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 252 transitions. [2023-08-29 17:30:04,902 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5029940119760479 [2023-08-29 17:30:04,902 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 252 transitions. [2023-08-29 17:30:04,902 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 252 transitions. [2023-08-29 17:30:04,903 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:30:04,903 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 252 transitions. [2023-08-29 17:30:04,904 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 84.0) internal successors, (252), 3 states have internal predecessors, (252), 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 17:30:04,905 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 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 17:30:04,906 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 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 17:30:04,906 INFO L175 Difference]: Start difference. First operand has 27 places, 24 transitions, 50 flow. Second operand 3 states and 252 transitions. [2023-08-29 17:30:04,906 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 25 transitions, 80 flow [2023-08-29 17:30:04,906 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 25 transitions, 80 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 17:30:04,907 INFO L231 Difference]: Finished difference. Result has 30 places, 25 transitions, 62 flow [2023-08-29 17:30:04,907 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=62, PETRI_PLACES=30, PETRI_TRANSITIONS=25} [2023-08-29 17:30:04,908 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, -1 predicate places. [2023-08-29 17:30:04,908 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 25 transitions, 62 flow [2023-08-29 17:30:04,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 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 17:30:04,908 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:30:04,909 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:30:04,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 17:30:04,909 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-08-29 17:30:04,909 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:30:04,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1300326845, now seen corresponding path program 1 times [2023-08-29 17:30:04,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:30:04,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549954338] [2023-08-29 17:30:04,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:30:04,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:30:04,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:30:04,998 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:30:04,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:30:04,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549954338] [2023-08-29 17:30:04,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549954338] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 17:30:04,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [775967248] [2023-08-29 17:30:04,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:30:04,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 17:30:05,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 17:30:05,007 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 17:30:05,008 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-29 17:30:05,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:30:05,064 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-29 17:30:05,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 17:30:05,081 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-29 17:30:05,081 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-29 17:30:05,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [775967248] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:30:05,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-29 17:30:05,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2023-08-29 17:30:05,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445955626] [2023-08-29 17:30:05,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:30:05,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 17:30:05,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:30:05,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 17:30:05,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-29 17:30:05,096 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 167 [2023-08-29 17:30:05,096 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 25 transitions, 62 flow. Second operand has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 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 17:30:05,097 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:30:05,097 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 167 [2023-08-29 17:30:05,097 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:30:05,153 INFO L130 PetriNetUnfolder]: 57/168 cut-off events. [2023-08-29 17:30:05,155 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:30:05,157 INFO L83 FinitePrefix]: Finished finitePrefix Result has 317 conditions, 168 events. 57/168 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 707 event pairs, 24 based on Foata normal form. 0/160 useless extension candidates. Maximal degree in co-relation 312. Up to 80 conditions per place. [2023-08-29 17:30:05,159 INFO L137 encePairwiseOnDemand]: 159/167 looper letters, 27 selfloop transitions, 6 changer transitions 0/38 dead transitions. [2023-08-29 17:30:05,160 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 38 transitions, 154 flow [2023-08-29 17:30:05,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 17:30:05,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 17:30:05,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 268 transitions. [2023-08-29 17:30:05,162 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5349301397205589 [2023-08-29 17:30:05,163 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 268 transitions. [2023-08-29 17:30:05,163 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 268 transitions. [2023-08-29 17:30:05,164 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:30:05,164 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 268 transitions. [2023-08-29 17:30:05,165 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 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 17:30:05,166 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 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 17:30:05,167 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 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 17:30:05,167 INFO L175 Difference]: Start difference. First operand has 30 places, 25 transitions, 62 flow. Second operand 3 states and 268 transitions. [2023-08-29 17:30:05,167 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 38 transitions, 154 flow [2023-08-29 17:30:05,169 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 38 transitions, 150 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-29 17:30:05,170 INFO L231 Difference]: Finished difference. Result has 33 places, 31 transitions, 110 flow [2023-08-29 17:30:05,172 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=110, PETRI_PLACES=33, PETRI_TRANSITIONS=31} [2023-08-29 17:30:05,174 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 2 predicate places. [2023-08-29 17:30:05,174 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 31 transitions, 110 flow [2023-08-29 17:30:05,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 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 17:30:05,175 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:30:05,175 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:30:05,183 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-29 17:30:05,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 17:30:05,381 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-08-29 17:30:05,381 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:30:05,381 INFO L85 PathProgramCache]: Analyzing trace with hash 2002478577, now seen corresponding path program 1 times [2023-08-29 17:30:05,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:30:05,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385177908] [2023-08-29 17:30:05,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:30:05,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:30:05,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:30:05,505 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:30:05,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:30:05,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385177908] [2023-08-29 17:30:05,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385177908] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 17:30:05,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1475180274] [2023-08-29 17:30:05,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:30:05,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 17:30:05,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 17:30:05,514 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 17:30:05,516 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-29 17:30:05,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:30:05,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-29 17:30:05,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 17:30:05,584 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-29 17:30:05,585 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-29 17:30:05,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1475180274] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:30:05,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-29 17:30:05,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2023-08-29 17:30:05,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870485387] [2023-08-29 17:30:05,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:30:05,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 17:30:05,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:30:05,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 17:30:05,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-29 17:30:05,613 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 167 [2023-08-29 17:30:05,614 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 31 transitions, 110 flow. Second operand has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 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 17:30:05,614 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:30:05,614 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 167 [2023-08-29 17:30:05,614 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:30:05,675 INFO L130 PetriNetUnfolder]: 49/156 cut-off events. [2023-08-29 17:30:05,676 INFO L131 PetriNetUnfolder]: For 75/77 co-relation queries the response was YES. [2023-08-29 17:30:05,678 INFO L83 FinitePrefix]: Finished finitePrefix Result has 368 conditions, 156 events. 49/156 cut-off events. For 75/77 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 638 event pairs, 28 based on Foata normal form. 2/148 useless extension candidates. Maximal degree in co-relation 362. Up to 102 conditions per place. [2023-08-29 17:30:05,679 INFO L137 encePairwiseOnDemand]: 162/167 looper letters, 20 selfloop transitions, 6 changer transitions 2/38 dead transitions. [2023-08-29 17:30:05,679 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 38 transitions, 190 flow [2023-08-29 17:30:05,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 17:30:05,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 17:30:05,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 254 transitions. [2023-08-29 17:30:05,681 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5069860279441117 [2023-08-29 17:30:05,681 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 254 transitions. [2023-08-29 17:30:05,681 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 254 transitions. [2023-08-29 17:30:05,681 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:30:05,682 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 254 transitions. [2023-08-29 17:30:05,682 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 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 17:30:05,684 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 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 17:30:05,685 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 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 17:30:05,685 INFO L175 Difference]: Start difference. First operand has 33 places, 31 transitions, 110 flow. Second operand 3 states and 254 transitions. [2023-08-29 17:30:05,685 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 38 transitions, 190 flow [2023-08-29 17:30:05,687 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 38 transitions, 174 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 17:30:05,688 INFO L231 Difference]: Finished difference. Result has 34 places, 35 transitions, 140 flow [2023-08-29 17:30:05,688 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=140, PETRI_PLACES=34, PETRI_TRANSITIONS=35} [2023-08-29 17:30:05,690 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 3 predicate places. [2023-08-29 17:30:05,690 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 35 transitions, 140 flow [2023-08-29 17:30:05,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 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 17:30:05,690 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:30:05,691 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:30:05,701 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-29 17:30:05,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-08-29 17:30:05,896 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting fErr1ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-08-29 17:30:05,896 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:30:05,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1558756795, now seen corresponding path program 1 times [2023-08-29 17:30:05,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:30:05,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287393339] [2023-08-29 17:30:05,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:30:05,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:30:05,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:30:05,982 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:30:05,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:30:05,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287393339] [2023-08-29 17:30:05,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287393339] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 17:30:05,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1594655676] [2023-08-29 17:30:05,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:30:05,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 17:30:05,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 17:30:05,984 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 17:30:05,985 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-29 17:30:06,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:30:06,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-29 17:30:06,039 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 17:30:06,046 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-29 17:30:06,046 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-29 17:30:06,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1594655676] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:30:06,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-29 17:30:06,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2023-08-29 17:30:06,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982541707] [2023-08-29 17:30:06,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:30:06,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 17:30:06,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:30:06,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 17:30:06,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-29 17:30:06,069 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 167 [2023-08-29 17:30:06,070 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 35 transitions, 140 flow. Second operand has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 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 17:30:06,070 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:30:06,070 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 167 [2023-08-29 17:30:06,070 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:30:06,112 INFO L130 PetriNetUnfolder]: 55/165 cut-off events. [2023-08-29 17:30:06,112 INFO L131 PetriNetUnfolder]: For 110/120 co-relation queries the response was YES. [2023-08-29 17:30:06,113 INFO L83 FinitePrefix]: Finished finitePrefix Result has 418 conditions, 165 events. 55/165 cut-off events. For 110/120 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 661 event pairs, 25 based on Foata normal form. 2/153 useless extension candidates. Maximal degree in co-relation 411. Up to 106 conditions per place. [2023-08-29 17:30:06,113 INFO L137 encePairwiseOnDemand]: 162/167 looper letters, 20 selfloop transitions, 7 changer transitions 6/43 dead transitions. [2023-08-29 17:30:06,114 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 43 transitions, 236 flow [2023-08-29 17:30:06,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 17:30:06,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 17:30:06,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 258 transitions. [2023-08-29 17:30:06,115 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5149700598802395 [2023-08-29 17:30:06,115 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 258 transitions. [2023-08-29 17:30:06,115 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 258 transitions. [2023-08-29 17:30:06,115 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:30:06,115 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 258 transitions. [2023-08-29 17:30:06,125 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 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 17:30:06,126 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 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 17:30:06,127 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 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 17:30:06,127 INFO L175 Difference]: Start difference. First operand has 34 places, 35 transitions, 140 flow. Second operand 3 states and 258 transitions. [2023-08-29 17:30:06,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 43 transitions, 236 flow [2023-08-29 17:30:06,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 43 transitions, 228 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 17:30:06,129 INFO L231 Difference]: Finished difference. Result has 36 places, 35 transitions, 161 flow [2023-08-29 17:30:06,130 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=161, PETRI_PLACES=36, PETRI_TRANSITIONS=35} [2023-08-29 17:30:06,130 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 5 predicate places. [2023-08-29 17:30:06,130 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 35 transitions, 161 flow [2023-08-29 17:30:06,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 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 17:30:06,131 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:30:06,131 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:30:06,139 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-08-29 17:30:06,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 17:30:06,337 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-08-29 17:30:06,337 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:30:06,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1928087301, now seen corresponding path program 1 times [2023-08-29 17:30:06,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:30:06,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809484664] [2023-08-29 17:30:06,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:30:06,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:30:06,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:30:06,420 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:30:06,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:30:06,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809484664] [2023-08-29 17:30:06,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809484664] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 17:30:06,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [890306184] [2023-08-29 17:30:06,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:30:06,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 17:30:06,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 17:30:06,425 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 17:30:06,426 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-08-29 17:30:06,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:30:06,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-29 17:30:06,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 17:30:06,546 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:30:06,546 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 17:30:06,576 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:30:06,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [890306184] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 17:30:06,577 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 17:30:06,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2023-08-29 17:30:06,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673994007] [2023-08-29 17:30:06,578 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 17:30:06,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 17:30:06,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:30:06,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 17:30:06,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 17:30:06,617 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 167 [2023-08-29 17:30:06,618 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 35 transitions, 161 flow. Second operand has 6 states, 6 states have (on average 79.83333333333333) internal successors, (479), 6 states have internal predecessors, (479), 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 17:30:06,618 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:30:06,618 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 167 [2023-08-29 17:30:06,618 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:30:06,674 INFO L130 PetriNetUnfolder]: 35/139 cut-off events. [2023-08-29 17:30:06,674 INFO L131 PetriNetUnfolder]: For 169/178 co-relation queries the response was YES. [2023-08-29 17:30:06,675 INFO L83 FinitePrefix]: Finished finitePrefix Result has 373 conditions, 139 events. 35/139 cut-off events. For 169/178 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 603 event pairs, 21 based on Foata normal form. 1/129 useless extension candidates. Maximal degree in co-relation 365. Up to 83 conditions per place. [2023-08-29 17:30:06,675 INFO L137 encePairwiseOnDemand]: 164/167 looper letters, 16 selfloop transitions, 5 changer transitions 0/38 dead transitions. [2023-08-29 17:30:06,675 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 38 transitions, 215 flow [2023-08-29 17:30:06,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 17:30:06,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 17:30:06,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 488 transitions. [2023-08-29 17:30:06,677 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4870259481037924 [2023-08-29 17:30:06,677 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 488 transitions. [2023-08-29 17:30:06,678 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 488 transitions. [2023-08-29 17:30:06,678 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:30:06,678 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 488 transitions. [2023-08-29 17:30:06,679 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 81.33333333333333) internal successors, (488), 6 states have internal predecessors, (488), 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 17:30:06,681 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 167.0) internal successors, (1169), 7 states have internal predecessors, (1169), 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 17:30:06,682 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 167.0) internal successors, (1169), 7 states have internal predecessors, (1169), 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 17:30:06,682 INFO L175 Difference]: Start difference. First operand has 36 places, 35 transitions, 161 flow. Second operand 6 states and 488 transitions. [2023-08-29 17:30:06,682 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 38 transitions, 215 flow [2023-08-29 17:30:06,686 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 38 transitions, 208 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 17:30:06,687 INFO L231 Difference]: Finished difference. Result has 43 places, 38 transitions, 190 flow [2023-08-29 17:30:06,687 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=190, PETRI_PLACES=43, PETRI_TRANSITIONS=38} [2023-08-29 17:30:06,689 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 12 predicate places. [2023-08-29 17:30:06,689 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 38 transitions, 190 flow [2023-08-29 17:30:06,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.83333333333333) internal successors, (479), 6 states have internal predecessors, (479), 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 17:30:06,690 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:30:06,690 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:30:06,704 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-08-29 17:30:06,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 17:30:06,895 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-08-29 17:30:06,896 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:30:06,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1095174325, now seen corresponding path program 2 times [2023-08-29 17:30:06,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:30:06,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979996380] [2023-08-29 17:30:06,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:30:06,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:30:06,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:30:07,146 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:30:07,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:30:07,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979996380] [2023-08-29 17:30:07,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979996380] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 17:30:07,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [406394773] [2023-08-29 17:30:07,147 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-29 17:30:07,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 17:30:07,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 17:30:07,149 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 17:30:07,151 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-08-29 17:30:07,227 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-29 17:30:07,227 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-29 17:30:07,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 6 conjunts are in the unsatisfiable core [2023-08-29 17:30:07,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 17:30:07,269 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:30:07,269 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 17:30:07,480 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:30:07,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [406394773] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 17:30:07,481 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 17:30:07,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2023-08-29 17:30:07,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288346682] [2023-08-29 17:30:07,481 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 17:30:07,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-29 17:30:07,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:30:07,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-29 17:30:07,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-08-29 17:30:07,516 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 167 [2023-08-29 17:30:07,518 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 38 transitions, 190 flow. Second operand has 12 states, 12 states have (on average 77.41666666666667) internal successors, (929), 12 states have internal predecessors, (929), 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 17:30:07,518 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:30:07,518 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 167 [2023-08-29 17:30:07,518 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:30:07,563 INFO L130 PetriNetUnfolder]: 35/145 cut-off events. [2023-08-29 17:30:07,564 INFO L131 PetriNetUnfolder]: For 137/146 co-relation queries the response was YES. [2023-08-29 17:30:07,564 INFO L83 FinitePrefix]: Finished finitePrefix Result has 400 conditions, 145 events. 35/145 cut-off events. For 137/146 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 602 event pairs, 21 based on Foata normal form. 7/142 useless extension candidates. Maximal degree in co-relation 389. Up to 83 conditions per place. [2023-08-29 17:30:07,565 INFO L137 encePairwiseOnDemand]: 164/167 looper letters, 16 selfloop transitions, 11 changer transitions 0/44 dead transitions. [2023-08-29 17:30:07,565 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 44 transitions, 280 flow [2023-08-29 17:30:07,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-29 17:30:07,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-29 17:30:07,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 941 transitions. [2023-08-29 17:30:07,568 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46956087824351295 [2023-08-29 17:30:07,568 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 941 transitions. [2023-08-29 17:30:07,568 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 941 transitions. [2023-08-29 17:30:07,569 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:30:07,569 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 941 transitions. [2023-08-29 17:30:07,571 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 78.41666666666667) internal successors, (941), 12 states have internal predecessors, (941), 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 17:30:07,574 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 167.0) internal successors, (2171), 13 states have internal predecessors, (2171), 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 17:30:07,574 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 167.0) internal successors, (2171), 13 states have internal predecessors, (2171), 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 17:30:07,574 INFO L175 Difference]: Start difference. First operand has 43 places, 38 transitions, 190 flow. Second operand 12 states and 941 transitions. [2023-08-29 17:30:07,575 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 44 transitions, 280 flow [2023-08-29 17:30:07,576 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 44 transitions, 266 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-08-29 17:30:07,577 INFO L231 Difference]: Finished difference. Result has 59 places, 44 transitions, 260 flow [2023-08-29 17:30:07,577 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=260, PETRI_PLACES=59, PETRI_TRANSITIONS=44} [2023-08-29 17:30:07,578 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 28 predicate places. [2023-08-29 17:30:07,578 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 44 transitions, 260 flow [2023-08-29 17:30:07,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 77.41666666666667) internal successors, (929), 12 states have internal predecessors, (929), 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 17:30:07,578 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:30:07,579 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:30:07,586 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-08-29 17:30:07,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 17:30:07,784 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-08-29 17:30:07,784 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:30:07,784 INFO L85 PathProgramCache]: Analyzing trace with hash -1975793611, now seen corresponding path program 3 times [2023-08-29 17:30:07,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:30:07,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332802031] [2023-08-29 17:30:07,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:30:07,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:30:07,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 17:30:07,853 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-29 17:30:07,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 17:30:07,943 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-29 17:30:07,943 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-29 17:30:07,944 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location fErr0ASSERT_VIOLATIONDATA_RACE (11 of 12 remaining) [2023-08-29 17:30:07,946 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location fErr0ASSERT_VIOLATIONDATA_RACE (10 of 12 remaining) [2023-08-29 17:30:07,946 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location fErr1ASSERT_VIOLATIONDATA_RACE (9 of 12 remaining) [2023-08-29 17:30:07,946 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location fErr2ASSERT_VIOLATIONDATA_RACE (8 of 12 remaining) [2023-08-29 17:30:07,946 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 12 remaining) [2023-08-29 17:30:07,947 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 12 remaining) [2023-08-29 17:30:07,947 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 12 remaining) [2023-08-29 17:30:07,947 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (4 of 12 remaining) [2023-08-29 17:30:07,947 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (3 of 12 remaining) [2023-08-29 17:30:07,947 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 12 remaining) [2023-08-29 17:30:07,947 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location fErr1ASSERT_VIOLATIONDATA_RACE (1 of 12 remaining) [2023-08-29 17:30:07,948 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location fErr2ASSERT_VIOLATIONDATA_RACE (0 of 12 remaining) [2023-08-29 17:30:07,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-29 17:30:07,948 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1] [2023-08-29 17:30:07,953 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 17:30:07,954 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 17:30:07,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 05:30:07 BasicIcfg [2023-08-29 17:30:07,987 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 17:30:07,988 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 17:30:07,988 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 17:30:07,988 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 17:30:07,989 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 05:30:02" (3/4) ... [2023-08-29 17:30:07,991 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-29 17:30:07,991 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 17:30:07,992 INFO L158 Benchmark]: Toolchain (without parser) took 6646.76ms. Allocated memory was 65.0MB in the beginning and 132.1MB in the end (delta: 67.1MB). Free memory was 30.4MB in the beginning and 75.2MB in the end (delta: -44.8MB). Peak memory consumption was 21.9MB. Max. memory is 16.1GB. [2023-08-29 17:30:07,992 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 65.0MB. Free memory is still 43.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 17:30:07,992 INFO L158 Benchmark]: CACSL2BoogieTranslator took 552.59ms. Allocated memory was 65.0MB in the beginning and 90.2MB in the end (delta: 25.2MB). Free memory was 30.2MB in the beginning and 47.9MB in the end (delta: -17.7MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. [2023-08-29 17:30:07,993 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.73ms. Allocated memory is still 90.2MB. Free memory was 47.9MB in the beginning and 45.9MB in the end (delta: 2.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-29 17:30:07,993 INFO L158 Benchmark]: Boogie Preprocessor took 47.30ms. Allocated memory is still 90.2MB. Free memory was 45.5MB in the beginning and 44.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 17:30:07,993 INFO L158 Benchmark]: RCFGBuilder took 371.00ms. Allocated memory is still 90.2MB. Free memory was 44.2MB in the beginning and 57.2MB in the end (delta: -13.1MB). Peak memory consumption was 3.2MB. Max. memory is 16.1GB. [2023-08-29 17:30:07,994 INFO L158 Benchmark]: TraceAbstraction took 5604.98ms. Allocated memory was 90.2MB in the beginning and 132.1MB in the end (delta: 41.9MB). Free memory was 56.4MB in the beginning and 75.2MB in the end (delta: -18.9MB). Peak memory consumption was 23.4MB. Max. memory is 16.1GB. [2023-08-29 17:30:07,994 INFO L158 Benchmark]: Witness Printer took 3.64ms. Allocated memory is still 132.1MB. Free memory was 75.2MB in the beginning and 75.2MB in the end (delta: 2.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 17:30:07,995 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 65.0MB. Free memory is still 43.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 552.59ms. Allocated memory was 65.0MB in the beginning and 90.2MB in the end (delta: 25.2MB). Free memory was 30.2MB in the beginning and 47.9MB in the end (delta: -17.7MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.73ms. Allocated memory is still 90.2MB. Free memory was 47.9MB in the beginning and 45.9MB in the end (delta: 2.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.30ms. Allocated memory is still 90.2MB. Free memory was 45.5MB in the beginning and 44.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 371.00ms. Allocated memory is still 90.2MB. Free memory was 44.2MB in the beginning and 57.2MB in the end (delta: -13.1MB). Peak memory consumption was 3.2MB. Max. memory is 16.1GB. * TraceAbstraction took 5604.98ms. Allocated memory was 90.2MB in the beginning and 132.1MB in the end (delta: 41.9MB). Free memory was 56.4MB in the beginning and 75.2MB in the end (delta: -18.9MB). Peak memory consumption was 23.4MB. Max. memory is 16.1GB. * Witness Printer took 3.64ms. Allocated memory is still 132.1MB. Free memory was 75.2MB in the beginning and 75.2MB in the end (delta: 2.6kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.9s, 87 PlacesBefore, 31 PlacesAfterwards, 87 TransitionsBefore, 28 TransitionsAfterwards, 960 CoEnabledTransitionPairs, 6 FixpointIterations, 41 TrivialSequentialCompositions, 30 ConcurrentSequentialCompositions, 5 TrivialYvCompositions, 0 ConcurrentYvCompositions, 3 ChoiceCompositions, 79 TotalNumberOfCompositions, 3682 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1521, independent: 1276, independent conditional: 0, independent unconditional: 1276, dependent: 245, dependent conditional: 0, dependent unconditional: 245, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 527, independent: 487, independent conditional: 0, independent unconditional: 487, dependent: 40, dependent conditional: 0, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1521, independent: 789, independent conditional: 0, independent unconditional: 789, dependent: 205, dependent conditional: 0, dependent unconditional: 205, unknown: 527, unknown conditional: 0, unknown unconditional: 527] , Statistics on independence cache: Total cache size (in pairs): 84, Positive cache size: 63, Positive conditional cache size: 0, Positive unconditional cache size: 63, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 991]: Data race detected Data race detected The following path leads to a data race: [L987] 0 int glob; [L988] 0 pthread_mutex_t *p, *q; [L996] 0 pthread_t t1, t2; [L997] 0 int i; [L998] 0 pthread_mutex_t *a; [L999] 0 i=0 VAL [glob=0, i=0, p={0:0}, q={0:0}, t1={2:0}] [L999] COND TRUE 0 i < 10 [L1000] 0 a = malloc(sizeof(pthread_mutex_t)) [L1002] COND FALSE 0 !(i==3) [L1004] COND FALSE 0 !(i==7) [L999] 0 i++ VAL [a={-6:0}, glob=0, i=1, p = a=25, p={0:0}, q = a=29, q={0:0}, t1={2:0}] [L999] COND TRUE 0 i < 10 [L1000] 0 a = malloc(sizeof(pthread_mutex_t)) [L1002] COND FALSE 0 !(i==3) [L1004] COND FALSE 0 !(i==7) [L999] 0 i++ VAL [a={-10:0}, glob=0, i=2, p = a=25, p={0:0}, q = a=29, q={0:0}, t1={2:0}] [L999] COND TRUE 0 i < 10 [L1000] 0 a = malloc(sizeof(pthread_mutex_t)) [L1002] COND FALSE 0 !(i==3) [L1004] COND FALSE 0 !(i==7) [L999] 0 i++ VAL [a={-1:0}, glob=0, i=3, p = a=25, p={0:0}, q = a=29, q={0:0}, t1={2:0}] [L999] COND TRUE 0 i < 10 [L1000] 0 a = malloc(sizeof(pthread_mutex_t)) [L1002] COND TRUE 0 i==3 [L1003] 0 p = a [L1004] COND FALSE 0 !(i==7) [L999] 0 i++ VAL [a={-2:0}, glob=0, i=4, p = a=25, p={-2:0}, q = a=29, q={0:0}, t1={2:0}] [L999] COND TRUE 0 i < 10 [L1000] 0 a = malloc(sizeof(pthread_mutex_t)) [L1002] COND FALSE 0 !(i==3) [L1004] COND FALSE 0 !(i==7) [L999] 0 i++ VAL [a={-3:0}, glob=0, i=5, p = a=25, p={-2:0}, q = a=29, q={0:0}, t1={2:0}] [L999] COND TRUE 0 i < 10 [L1000] 0 a = malloc(sizeof(pthread_mutex_t)) [L1002] COND FALSE 0 !(i==3) [L1004] COND FALSE 0 !(i==7) [L999] 0 i++ VAL [a={-4:0}, glob=0, i=6, p = a=25, p={-2:0}, q = a=29, q={0:0}, t1={2:0}] [L999] COND TRUE 0 i < 10 [L1000] 0 a = malloc(sizeof(pthread_mutex_t)) [L1002] COND FALSE 0 !(i==3) [L1004] COND FALSE 0 !(i==7) [L999] 0 i++ VAL [a={-5:0}, glob=0, i=7, p = a=25, p={-2:0}, q = a=29, q={0:0}, t1={2:0}] [L999] COND TRUE 0 i < 10 [L1000] 0 a = malloc(sizeof(pthread_mutex_t)) [L1002] COND FALSE 0 !(i==3) [L1004] COND TRUE 0 i==7 [L1005] 0 q = a [L999] 0 i++ VAL [a={-8:0}, glob=0, i=8, p = a=25, p={-2:0}, q = a=29, q={-8:0}, t1={2:0}] [L999] COND TRUE 0 i < 10 [L1000] 0 a = malloc(sizeof(pthread_mutex_t)) [L1002] COND FALSE 0 !(i==3) [L1004] COND FALSE 0 !(i==7) [L999] 0 i++ VAL [a={-9:0}, glob=0, i=9, p = a=25, p={-2:0}, q = a=29, q={-8:0}, t1={2:0}] [L999] COND TRUE 0 i < 10 [L1000] 0 a = malloc(sizeof(pthread_mutex_t)) [L1002] COND FALSE 0 !(i==3) [L1004] COND FALSE 0 !(i==7) [L999] 0 i++ VAL [a={-7:0}, glob=0, i=10, p = a=25, p={-2:0}, q = a=29, q={-8:0}, t1={2:0}] [L999] COND FALSE 0 !(i < 10) [L1007] FCALL, FORK 0 pthread_create(&t1, 0, f, 0) VAL [a={-7:0}, glob=0, i=10, p = a=25, p={-2:0}, pthread_create(&t1, 0, f, 0)=3, q = a=29, q={-8:0}, t1={2:0}, x={0:0}] [L1009] 0 glob++ VAL [a={-7:0}, glob++=0, glob=1, i=10, p = a=25, p={-2:0}, q = a=29, q={-8:0}, t1={2:0}, x={0:0}] [L991] 1 glob++ VAL [glob=1, p={-2:0}, q={-8:0}, x={0:0}, x={0:0}] [L1009] 0 glob++ VAL [a={-7:0}, glob++=0, glob++=27, glob=1, i=10, p = a=25, p={-2:0}, q = a=29, q={-8:0}, t1={2:0}, x={0:0}, x={0:0}] [L991] 1 glob++ VAL [glob=1, p={-2:0}, q={-8:0}, x={0:0}, x={0:0}] Now there is a data race on ~glob~0 between C: glob++ [1009] and C: glob++ [991] - UnprovableResult [Line: 991]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 992]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1003]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1005]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1009]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1009]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1010]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1007]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 107 locations, 12 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: 5.5s, OverallIterations: 8, TraceHistogramMax: 10, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 164 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 79 mSDsluCounter, 16 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 402 IncrementalHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 16 mSDtfsCounter, 402 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 101 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=260occurred in iteration=7, InterpolantAutomatonStates: 32, 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: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 146 NumberOfCodeBlocks, 146 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 139 ConstructedInterpolants, 0 QuantifiedInterpolants, 201 SizeOfPredicates, 4 NumberOfNonLiveVariables, 428 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 14 InterpolantComputations, 5 PerfectInterpolantSequences, 3/39 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 17:30:08,046 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