./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/weaver/chl-file-item-symm.wvr.c --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/weaver/chl-file-item-symm.wvr.c -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 846c6ea342419c7ea85c72de8af40f1cf8af72c22131b8a3f2ebdacec113c699 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-31 21:30:49,333 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 21:30:49,335 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 21:30:49,378 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 21:30:49,380 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 21:30:49,392 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 21:30:49,394 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 21:30:49,397 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 21:30:49,399 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 21:30:49,404 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 21:30:49,405 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 21:30:49,407 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 21:30:49,407 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 21:30:49,409 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 21:30:49,409 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 21:30:49,410 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 21:30:49,410 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 21:30:49,410 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 21:30:49,411 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 21:30:49,412 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 21:30:49,413 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 21:30:49,414 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 21:30:49,415 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 21:30:49,416 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 21:30:49,418 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 21:30:49,419 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 21:30:49,419 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 21:30:49,420 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 21:30:49,420 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 21:30:49,421 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 21:30:49,421 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 21:30:49,422 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 21:30:49,422 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 21:30:49,423 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 21:30:49,424 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 21:30:49,424 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 21:30:49,425 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 21:30:49,425 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 21:30:49,425 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 21:30:49,426 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 21:30:49,426 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 21:30:49,434 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-31 21:30:49,471 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 21:30:49,472 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 21:30:49,473 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 21:30:49,473 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 21:30:49,474 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 21:30:49,474 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 21:30:49,474 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 21:30:49,475 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 21:30:49,475 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 21:30:49,475 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 21:30:49,476 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 21:30:49,476 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-31 21:30:49,476 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 21:30:49,476 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 21:30:49,477 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 21:30:49,477 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 21:30:49,477 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 21:30:49,477 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 21:30:49,477 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-31 21:30:49,477 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 21:30:49,477 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 21:30:49,478 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 21:30:49,478 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 21:30:49,478 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 21:30:49,478 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 21:30:49,478 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 21:30:49,479 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 21:30:49,479 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 21:30:49,479 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 21:30:49,479 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 21:30:49,479 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 21:30:49,479 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 21:30:49,480 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 21:30:49,480 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 21:30:49,480 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 21:30:49,480 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 21:30:49,480 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 21:30:49,481 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 846c6ea342419c7ea85c72de8af40f1cf8af72c22131b8a3f2ebdacec113c699 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-08-31 21:30:49,804 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 21:30:49,820 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 21:30:49,823 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 21:30:49,824 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 21:30:49,824 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 21:30:49,825 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-file-item-symm.wvr.c [2023-08-31 21:30:51,031 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 21:30:51,242 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 21:30:51,243 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-file-item-symm.wvr.c [2023-08-31 21:30:51,251 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1dd54196d/2855e82d71e9464da374cd7c1cb19723/FLAG47cb2bff0 [2023-08-31 21:30:51,273 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1dd54196d/2855e82d71e9464da374cd7c1cb19723 [2023-08-31 21:30:51,276 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 21:30:51,278 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 21:30:51,280 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 21:30:51,280 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 21:30:51,283 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 21:30:51,283 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 09:30:51" (1/1) ... [2023-08-31 21:30:51,286 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@162adf79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:30:51, skipping insertion in model container [2023-08-31 21:30:51,287 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 09:30:51" (1/1) ... [2023-08-31 21:30:51,293 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 21:30:51,309 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 21:30:51,454 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-file-item-symm.wvr.c[2495,2508] [2023-08-31 21:30:51,457 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 21:30:51,466 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 21:30:51,487 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-file-item-symm.wvr.c[2495,2508] [2023-08-31 21:30:51,490 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 21:30:51,502 INFO L208 MainTranslator]: Completed translation [2023-08-31 21:30:51,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:30:51 WrapperNode [2023-08-31 21:30:51,503 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 21:30:51,504 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 21:30:51,504 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 21:30:51,505 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 21:30:51,511 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:30:51" (1/1) ... [2023-08-31 21:30:51,519 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:30:51" (1/1) ... [2023-08-31 21:30:51,541 INFO L138 Inliner]: procedures = 22, calls = 25, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 246 [2023-08-31 21:30:51,542 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 21:30:51,543 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 21:30:51,543 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 21:30:51,543 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 21:30:51,550 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:30:51" (1/1) ... [2023-08-31 21:30:51,551 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:30:51" (1/1) ... [2023-08-31 21:30:51,554 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:30:51" (1/1) ... [2023-08-31 21:30:51,555 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:30:51" (1/1) ... [2023-08-31 21:30:51,562 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:30:51" (1/1) ... [2023-08-31 21:30:51,564 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:30:51" (1/1) ... [2023-08-31 21:30:51,566 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:30:51" (1/1) ... [2023-08-31 21:30:51,567 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:30:51" (1/1) ... [2023-08-31 21:30:51,569 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 21:30:51,570 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 21:30:51,570 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 21:30:51,570 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 21:30:51,571 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:30:51" (1/1) ... [2023-08-31 21:30:51,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 21:30:51,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 21:30:51,626 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-31 21:30:51,659 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-31 21:30:51,672 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 21:30:51,672 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-31 21:30:51,673 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-31 21:30:51,673 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-31 21:30:51,673 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-31 21:30:51,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 21:30:51,674 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 21:30:51,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 21:30:51,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 21:30:51,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 21:30:51,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-31 21:30:51,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 21:30:51,676 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-31 21:30:51,818 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 21:30:51,819 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 21:30:52,213 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 21:30:52,222 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 21:30:52,222 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-31 21:30:52,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 09:30:52 BoogieIcfgContainer [2023-08-31 21:30:52,224 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 21:30:52,226 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 21:30:52,226 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 21:30:52,228 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 21:30:52,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 09:30:51" (1/3) ... [2023-08-31 21:30:52,245 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68d535e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 09:30:52, skipping insertion in model container [2023-08-31 21:30:52,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:30:51" (2/3) ... [2023-08-31 21:30:52,246 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68d535e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 09:30:52, skipping insertion in model container [2023-08-31 21:30:52,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 09:30:52" (3/3) ... [2023-08-31 21:30:52,247 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-file-item-symm.wvr.c [2023-08-31 21:30:52,262 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 21:30:52,270 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 21:30:52,270 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2023-08-31 21:30:52,270 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 21:30:52,406 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-31 21:30:52,438 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 295 places, 306 transitions, 628 flow [2023-08-31 21:30:52,534 INFO L130 PetriNetUnfolder]: 18/304 cut-off events. [2023-08-31 21:30:52,535 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-31 21:30:52,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 313 conditions, 304 events. 18/304 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 625 event pairs, 0 based on Foata normal form. 0/254 useless extension candidates. Maximal degree in co-relation 165. Up to 2 conditions per place. [2023-08-31 21:30:52,544 INFO L82 GeneralOperation]: Start removeDead. Operand has 295 places, 306 transitions, 628 flow [2023-08-31 21:30:52,551 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 277 places, 286 transitions, 584 flow [2023-08-31 21:30:52,555 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 21:30:52,568 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 277 places, 286 transitions, 584 flow [2023-08-31 21:30:52,570 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 277 places, 286 transitions, 584 flow [2023-08-31 21:30:52,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 277 places, 286 transitions, 584 flow [2023-08-31 21:30:52,629 INFO L130 PetriNetUnfolder]: 16/286 cut-off events. [2023-08-31 21:30:52,630 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-31 21:30:52,632 INFO L83 FinitePrefix]: Finished finitePrefix Result has 295 conditions, 286 events. 16/286 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 613 event pairs, 0 based on Foata normal form. 0/239 useless extension candidates. Maximal degree in co-relation 165. Up to 2 conditions per place. [2023-08-31 21:30:52,639 INFO L119 LiptonReduction]: Number of co-enabled transitions 15476 [2023-08-31 21:30:58,192 INFO L134 LiptonReduction]: Checked pairs total: 54733 [2023-08-31 21:30:58,192 INFO L136 LiptonReduction]: Total number of compositions: 294 [2023-08-31 21:30:58,208 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 21:30:58,218 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;@7e178037, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 21:30:58,219 INFO L358 AbstractCegarLoop]: Starting to check reachability of 52 error locations. [2023-08-31 21:30:58,220 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-31 21:30:58,221 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 21:30:58,221 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:30:58,221 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-31 21:30:58,223 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2023-08-31 21:30:58,228 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:30:58,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1144, now seen corresponding path program 1 times [2023-08-31 21:30:58,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:30:58,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167614146] [2023-08-31 21:30:58,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:30:58,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:30:58,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:30:58,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:30:58,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:30:58,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167614146] [2023-08-31 21:30:58,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167614146] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:30:58,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:30:58,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-31 21:30:58,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748749403] [2023-08-31 21:30:58,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:30:58,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-31 21:30:58,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:30:58,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-31 21:30:58,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-31 21:30:58,368 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 600 [2023-08-31 21:30:58,374 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 81 transitions, 174 flow. Second operand has 2 states, 2 states have (on average 294.5) internal successors, (589), 2 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:30:58,375 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:30:58,375 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 600 [2023-08-31 21:30:58,376 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:30:58,519 INFO L130 PetriNetUnfolder]: 400/872 cut-off events. [2023-08-31 21:30:58,520 INFO L131 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2023-08-31 21:30:58,524 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1506 conditions, 872 events. 400/872 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 5267 event pairs, 240 based on Foata normal form. 1/664 useless extension candidates. Maximal degree in co-relation 1400. Up to 601 conditions per place. [2023-08-31 21:30:58,530 INFO L137 encePairwiseOnDemand]: 585/600 looper letters, 31 selfloop transitions, 0 changer transitions 1/66 dead transitions. [2023-08-31 21:30:58,531 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 66 transitions, 208 flow [2023-08-31 21:30:58,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-31 21:30:58,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-31 21:30:58,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 635 transitions. [2023-08-31 21:30:58,552 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5291666666666667 [2023-08-31 21:30:58,553 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 635 transitions. [2023-08-31 21:30:58,553 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 635 transitions. [2023-08-31 21:30:58,557 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:30:58,560 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 635 transitions. [2023-08-31 21:30:58,565 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 317.5) internal successors, (635), 2 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:30:58,571 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 600.0) internal successors, (1800), 3 states have internal predecessors, (1800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:30:58,572 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 600.0) internal successors, (1800), 3 states have internal predecessors, (1800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:30:58,573 INFO L175 Difference]: Start difference. First operand has 80 places, 81 transitions, 174 flow. Second operand 2 states and 635 transitions. [2023-08-31 21:30:58,574 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 66 transitions, 208 flow [2023-08-31 21:30:58,577 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 66 transitions, 200 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-31 21:30:58,580 INFO L231 Difference]: Finished difference. Result has 62 places, 65 transitions, 133 flow [2023-08-31 21:30:58,582 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=600, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=133, PETRI_PLACES=62, PETRI_TRANSITIONS=65} [2023-08-31 21:30:58,587 INFO L281 CegarLoopForPetriNet]: 80 programPoint places, -18 predicate places. [2023-08-31 21:30:58,587 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 65 transitions, 133 flow [2023-08-31 21:30:58,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 294.5) internal successors, (589), 2 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:30:58,588 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:30:58,589 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-31 21:30:58,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 21:30:58,591 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2023-08-31 21:30:58,593 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:30:58,595 INFO L85 PathProgramCache]: Analyzing trace with hash 35350171, now seen corresponding path program 1 times [2023-08-31 21:30:58,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:30:58,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704785069] [2023-08-31 21:30:58,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:30:58,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:30:58,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:30:58,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:30:58,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:30:58,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704785069] [2023-08-31 21:30:58,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704785069] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:30:58,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:30:58,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:30:58,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684986823] [2023-08-31 21:30:58,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:30:58,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:30:58,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:30:58,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:30:58,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:30:58,689 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 284 out of 600 [2023-08-31 21:30:58,691 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 65 transitions, 133 flow. Second operand has 3 states, 3 states have (on average 285.3333333333333) internal successors, (856), 3 states have internal predecessors, (856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:30:58,691 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:30:58,691 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 284 of 600 [2023-08-31 21:30:58,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:30:58,815 INFO L130 PetriNetUnfolder]: 552/1139 cut-off events. [2023-08-31 21:30:58,815 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2023-08-31 21:30:58,818 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1993 conditions, 1139 events. 552/1139 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 6460 event pairs, 202 based on Foata normal form. 0/929 useless extension candidates. Maximal degree in co-relation 1990. Up to 828 conditions per place. [2023-08-31 21:30:58,824 INFO L137 encePairwiseOnDemand]: 594/600 looper letters, 40 selfloop transitions, 3 changer transitions 0/70 dead transitions. [2023-08-31 21:30:58,824 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 70 transitions, 230 flow [2023-08-31 21:30:58,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:30:58,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:30:58,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 898 transitions. [2023-08-31 21:30:58,827 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4988888888888889 [2023-08-31 21:30:58,827 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 898 transitions. [2023-08-31 21:30:58,828 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 898 transitions. [2023-08-31 21:30:58,828 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:30:58,828 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 898 transitions. [2023-08-31 21:30:58,830 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 299.3333333333333) internal successors, (898), 3 states have internal predecessors, (898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:30:58,834 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 600.0) internal successors, (2400), 4 states have internal predecessors, (2400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:30:58,836 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 600.0) internal successors, (2400), 4 states have internal predecessors, (2400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:30:58,836 INFO L175 Difference]: Start difference. First operand has 62 places, 65 transitions, 133 flow. Second operand 3 states and 898 transitions. [2023-08-31 21:30:58,836 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 70 transitions, 230 flow [2023-08-31 21:30:58,837 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 70 transitions, 230 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:30:58,838 INFO L231 Difference]: Finished difference. Result has 61 places, 65 transitions, 148 flow [2023-08-31 21:30:58,838 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=600, PETRI_DIFFERENCE_MINUEND_FLOW=127, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=148, PETRI_PLACES=61, PETRI_TRANSITIONS=65} [2023-08-31 21:30:58,839 INFO L281 CegarLoopForPetriNet]: 80 programPoint places, -19 predicate places. [2023-08-31 21:30:58,839 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 65 transitions, 148 flow [2023-08-31 21:30:58,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 285.3333333333333) internal successors, (856), 3 states have internal predecessors, (856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:30:58,840 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:30:58,840 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-31 21:30:58,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-31 21:30:58,840 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2023-08-31 21:30:58,841 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:30:58,841 INFO L85 PathProgramCache]: Analyzing trace with hash -388194731, now seen corresponding path program 1 times [2023-08-31 21:30:58,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:30:58,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491528614] [2023-08-31 21:30:58,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:30:58,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:30:58,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:30:58,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:30:58,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:30:58,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491528614] [2023-08-31 21:30:58,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491528614] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:30:58,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:30:58,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:30:58,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051741641] [2023-08-31 21:30:58,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:30:58,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:30:58,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:30:58,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:30:58,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:30:58,921 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 284 out of 600 [2023-08-31 21:30:58,923 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 65 transitions, 148 flow. Second operand has 3 states, 3 states have (on average 285.3333333333333) internal successors, (856), 3 states have internal predecessors, (856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:30:58,923 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:30:58,923 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 284 of 600 [2023-08-31 21:30:58,924 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:30:59,035 INFO L130 PetriNetUnfolder]: 453/994 cut-off events. [2023-08-31 21:30:59,036 INFO L131 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2023-08-31 21:30:59,038 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1738 conditions, 994 events. 453/994 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 5908 event pairs, 126 based on Foata normal form. 0/793 useless extension candidates. Maximal degree in co-relation 1734. Up to 675 conditions per place. [2023-08-31 21:30:59,041 INFO L137 encePairwiseOnDemand]: 594/600 looper letters, 35 selfloop transitions, 3 changer transitions 0/68 dead transitions. [2023-08-31 21:30:59,042 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 68 transitions, 231 flow [2023-08-31 21:30:59,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:30:59,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:30:59,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 893 transitions. [2023-08-31 21:30:59,045 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4961111111111111 [2023-08-31 21:30:59,045 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 893 transitions. [2023-08-31 21:30:59,045 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 893 transitions. [2023-08-31 21:30:59,046 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:30:59,046 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 893 transitions. [2023-08-31 21:30:59,047 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 297.6666666666667) internal successors, (893), 3 states have internal predecessors, (893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:30:59,051 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 600.0) internal successors, (2400), 4 states have internal predecessors, (2400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:30:59,052 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 600.0) internal successors, (2400), 4 states have internal predecessors, (2400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:30:59,052 INFO L175 Difference]: Start difference. First operand has 61 places, 65 transitions, 148 flow. Second operand 3 states and 893 transitions. [2023-08-31 21:30:59,052 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 68 transitions, 231 flow [2023-08-31 21:30:59,055 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 68 transitions, 231 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:30:59,057 INFO L231 Difference]: Finished difference. Result has 61 places, 65 transitions, 163 flow [2023-08-31 21:30:59,057 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=600, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=163, PETRI_PLACES=61, PETRI_TRANSITIONS=65} [2023-08-31 21:30:59,058 INFO L281 CegarLoopForPetriNet]: 80 programPoint places, -19 predicate places. [2023-08-31 21:30:59,061 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 65 transitions, 163 flow [2023-08-31 21:30:59,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 285.3333333333333) internal successors, (856), 3 states have internal predecessors, (856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:30:59,063 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:30:59,063 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:30:59,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-31 21:30:59,063 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2023-08-31 21:30:59,064 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:30:59,064 INFO L85 PathProgramCache]: Analyzing trace with hash 850877374, now seen corresponding path program 1 times [2023-08-31 21:30:59,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:30:59,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538412260] [2023-08-31 21:30:59,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:30:59,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:30:59,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:30:59,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:30:59,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:30:59,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538412260] [2023-08-31 21:30:59,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538412260] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:30:59,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:30:59,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:30:59,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343851580] [2023-08-31 21:30:59,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:30:59,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:30:59,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:30:59,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:30:59,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:30:59,144 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 286 out of 600 [2023-08-31 21:30:59,146 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 65 transitions, 163 flow. Second operand has 3 states, 3 states have (on average 287.6666666666667) internal successors, (863), 3 states have internal predecessors, (863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:30:59,146 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:30:59,146 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 286 of 600 [2023-08-31 21:30:59,147 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:30:59,269 INFO L130 PetriNetUnfolder]: 442/929 cut-off events. [2023-08-31 21:30:59,270 INFO L131 PetriNetUnfolder]: For 23/23 co-relation queries the response was YES. [2023-08-31 21:30:59,272 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1675 conditions, 929 events. 442/929 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 5511 event pairs, 187 based on Foata normal form. 0/696 useless extension candidates. Maximal degree in co-relation 1670. Up to 520 conditions per place. [2023-08-31 21:30:59,275 INFO L137 encePairwiseOnDemand]: 593/600 looper letters, 35 selfloop transitions, 6 changer transitions 7/79 dead transitions. [2023-08-31 21:30:59,276 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 79 transitions, 288 flow [2023-08-31 21:30:59,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:30:59,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:30:59,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 905 transitions. [2023-08-31 21:30:59,280 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5027777777777778 [2023-08-31 21:30:59,280 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 905 transitions. [2023-08-31 21:30:59,280 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 905 transitions. [2023-08-31 21:30:59,285 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:30:59,285 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 905 transitions. [2023-08-31 21:30:59,287 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 301.6666666666667) internal successors, (905), 3 states have internal predecessors, (905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:30:59,291 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 600.0) internal successors, (2400), 4 states have internal predecessors, (2400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:30:59,292 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 600.0) internal successors, (2400), 4 states have internal predecessors, (2400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:30:59,292 INFO L175 Difference]: Start difference. First operand has 61 places, 65 transitions, 163 flow. Second operand 3 states and 905 transitions. [2023-08-31 21:30:59,292 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 79 transitions, 288 flow [2023-08-31 21:30:59,294 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 79 transitions, 288 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:30:59,295 INFO L231 Difference]: Finished difference. Result has 62 places, 64 transitions, 173 flow [2023-08-31 21:30:59,296 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=600, PETRI_DIFFERENCE_MINUEND_FLOW=161, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=173, PETRI_PLACES=62, PETRI_TRANSITIONS=64} [2023-08-31 21:30:59,297 INFO L281 CegarLoopForPetriNet]: 80 programPoint places, -18 predicate places. [2023-08-31 21:30:59,297 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 64 transitions, 173 flow [2023-08-31 21:30:59,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 287.6666666666667) internal successors, (863), 3 states have internal predecessors, (863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:30:59,298 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:30:59,298 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:30:59,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-31 21:30:59,299 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2023-08-31 21:30:59,299 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:30:59,299 INFO L85 PathProgramCache]: Analyzing trace with hash 607281875, now seen corresponding path program 1 times [2023-08-31 21:30:59,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:30:59,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413009581] [2023-08-31 21:30:59,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:30:59,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:30:59,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:30:59,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:30:59,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:30:59,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413009581] [2023-08-31 21:30:59,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413009581] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:30:59,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:30:59,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:30:59,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979440321] [2023-08-31 21:30:59,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:30:59,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:30:59,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:30:59,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:30:59,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:30:59,396 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 284 out of 600 [2023-08-31 21:30:59,397 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 64 transitions, 173 flow. Second operand has 3 states, 3 states have (on average 286.0) internal successors, (858), 3 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:30:59,398 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:30:59,398 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 284 of 600 [2023-08-31 21:30:59,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:30:59,560 INFO L130 PetriNetUnfolder]: 689/1367 cut-off events. [2023-08-31 21:30:59,561 INFO L131 PetriNetUnfolder]: For 192/192 co-relation queries the response was YES. [2023-08-31 21:30:59,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2742 conditions, 1367 events. 689/1367 cut-off events. For 192/192 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 8404 event pairs, 142 based on Foata normal form. 0/1088 useless extension candidates. Maximal degree in co-relation 2736. Up to 738 conditions per place. [2023-08-31 21:30:59,567 INFO L137 encePairwiseOnDemand]: 594/600 looper letters, 56 selfloop transitions, 3 changer transitions 0/83 dead transitions. [2023-08-31 21:30:59,567 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 83 transitions, 341 flow [2023-08-31 21:30:59,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:30:59,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:30:59,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 912 transitions. [2023-08-31 21:30:59,570 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5066666666666667 [2023-08-31 21:30:59,571 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 912 transitions. [2023-08-31 21:30:59,571 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 912 transitions. [2023-08-31 21:30:59,571 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:30:59,572 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 912 transitions. [2023-08-31 21:30:59,574 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 304.0) internal successors, (912), 3 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:30:59,577 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 600.0) internal successors, (2400), 4 states have internal predecessors, (2400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:30:59,578 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 600.0) internal successors, (2400), 4 states have internal predecessors, (2400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:30:59,578 INFO L175 Difference]: Start difference. First operand has 62 places, 64 transitions, 173 flow. Second operand 3 states and 912 transitions. [2023-08-31 21:30:59,579 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 83 transitions, 341 flow [2023-08-31 21:30:59,584 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 83 transitions, 323 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-31 21:30:59,586 INFO L231 Difference]: Finished difference. Result has 60 places, 64 transitions, 176 flow [2023-08-31 21:30:59,586 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=600, PETRI_DIFFERENCE_MINUEND_FLOW=155, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=176, PETRI_PLACES=60, PETRI_TRANSITIONS=64} [2023-08-31 21:30:59,590 INFO L281 CegarLoopForPetriNet]: 80 programPoint places, -20 predicate places. [2023-08-31 21:30:59,590 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 64 transitions, 176 flow [2023-08-31 21:30:59,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 286.0) internal successors, (858), 3 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:30:59,591 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:30:59,591 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:30:59,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-31 21:30:59,591 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2023-08-31 21:30:59,592 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:30:59,592 INFO L85 PathProgramCache]: Analyzing trace with hash -517457380, now seen corresponding path program 1 times [2023-08-31 21:30:59,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:30:59,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72781400] [2023-08-31 21:30:59,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:30:59,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:30:59,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:30:59,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:30:59,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:30:59,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72781400] [2023-08-31 21:30:59,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72781400] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:30:59,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:30:59,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:30:59,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869904157] [2023-08-31 21:30:59,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:30:59,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:30:59,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:30:59,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:30:59,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:30:59,654 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 284 out of 600 [2023-08-31 21:30:59,655 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 64 transitions, 176 flow. Second operand has 3 states, 3 states have (on average 286.3333333333333) internal successors, (859), 3 states have internal predecessors, (859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:30:59,655 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:30:59,655 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 284 of 600 [2023-08-31 21:30:59,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:30:59,806 INFO L130 PetriNetUnfolder]: 720/1424 cut-off events. [2023-08-31 21:30:59,807 INFO L131 PetriNetUnfolder]: For 38/38 co-relation queries the response was YES. [2023-08-31 21:30:59,809 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2771 conditions, 1424 events. 720/1424 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 8566 event pairs, 158 based on Foata normal form. 0/1134 useless extension candidates. Maximal degree in co-relation 2765. Up to 771 conditions per place. [2023-08-31 21:30:59,813 INFO L137 encePairwiseOnDemand]: 594/600 looper letters, 56 selfloop transitions, 3 changer transitions 0/83 dead transitions. [2023-08-31 21:30:59,813 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 83 transitions, 338 flow [2023-08-31 21:30:59,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:30:59,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:30:59,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 912 transitions. [2023-08-31 21:30:59,816 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5066666666666667 [2023-08-31 21:30:59,816 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 912 transitions. [2023-08-31 21:30:59,817 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 912 transitions. [2023-08-31 21:30:59,817 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:30:59,817 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 912 transitions. [2023-08-31 21:30:59,819 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 304.0) internal successors, (912), 3 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:30:59,823 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 600.0) internal successors, (2400), 4 states have internal predecessors, (2400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:30:59,824 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 600.0) internal successors, (2400), 4 states have internal predecessors, (2400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:30:59,824 INFO L175 Difference]: Start difference. First operand has 60 places, 64 transitions, 176 flow. Second operand 3 states and 912 transitions. [2023-08-31 21:30:59,824 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 83 transitions, 338 flow [2023-08-31 21:30:59,825 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 83 transitions, 338 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:30:59,827 INFO L231 Difference]: Finished difference. Result has 60 places, 64 transitions, 191 flow [2023-08-31 21:30:59,827 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=600, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=191, PETRI_PLACES=60, PETRI_TRANSITIONS=64} [2023-08-31 21:30:59,829 INFO L281 CegarLoopForPetriNet]: 80 programPoint places, -20 predicate places. [2023-08-31 21:30:59,829 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 64 transitions, 191 flow [2023-08-31 21:30:59,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 286.3333333333333) internal successors, (859), 3 states have internal predecessors, (859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:30:59,830 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:30:59,830 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:30:59,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-31 21:30:59,831 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2023-08-31 21:30:59,831 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:30:59,832 INFO L85 PathProgramCache]: Analyzing trace with hash 940647521, now seen corresponding path program 1 times [2023-08-31 21:30:59,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:30:59,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047527646] [2023-08-31 21:30:59,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:30:59,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:30:59,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:30:59,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:30:59,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:30:59,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047527646] [2023-08-31 21:30:59,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047527646] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:30:59,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:30:59,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:30:59,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272817637] [2023-08-31 21:30:59,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:30:59,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:30:59,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:30:59,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:30:59,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:30:59,900 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 287 out of 600 [2023-08-31 21:30:59,901 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 64 transitions, 191 flow. Second operand has 3 states, 3 states have (on average 289.3333333333333) internal successors, (868), 3 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:30:59,901 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:30:59,901 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 287 of 600 [2023-08-31 21:30:59,902 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:31:00,057 INFO L130 PetriNetUnfolder]: 798/1443 cut-off events. [2023-08-31 21:31:00,058 INFO L131 PetriNetUnfolder]: For 37/37 co-relation queries the response was YES. [2023-08-31 21:31:00,061 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2953 conditions, 1443 events. 798/1443 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 8220 event pairs, 286 based on Foata normal form. 0/1132 useless extension candidates. Maximal degree in co-relation 2946. Up to 787 conditions per place. [2023-08-31 21:31:00,065 INFO L137 encePairwiseOnDemand]: 596/600 looper letters, 56 selfloop transitions, 2 changer transitions 5/90 dead transitions. [2023-08-31 21:31:00,065 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 90 transitions, 375 flow [2023-08-31 21:31:00,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:31:00,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:31:00,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 924 transitions. [2023-08-31 21:31:00,068 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5133333333333333 [2023-08-31 21:31:00,068 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 924 transitions. [2023-08-31 21:31:00,069 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 924 transitions. [2023-08-31 21:31:00,069 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:31:00,069 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 924 transitions. [2023-08-31 21:31:00,072 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 308.0) internal successors, (924), 3 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:31:00,075 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 600.0) internal successors, (2400), 4 states have internal predecessors, (2400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:31:00,076 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 600.0) internal successors, (2400), 4 states have internal predecessors, (2400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:31:00,076 INFO L175 Difference]: Start difference. First operand has 60 places, 64 transitions, 191 flow. Second operand 3 states and 924 transitions. [2023-08-31 21:31:00,076 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 90 transitions, 375 flow [2023-08-31 21:31:00,079 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 90 transitions, 375 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:31:00,082 INFO L231 Difference]: Finished difference. Result has 61 places, 64 transitions, 201 flow [2023-08-31 21:31:00,082 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=600, PETRI_DIFFERENCE_MINUEND_FLOW=187, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=201, PETRI_PLACES=61, PETRI_TRANSITIONS=64} [2023-08-31 21:31:00,083 INFO L281 CegarLoopForPetriNet]: 80 programPoint places, -19 predicate places. [2023-08-31 21:31:00,083 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 64 transitions, 201 flow [2023-08-31 21:31:00,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 289.3333333333333) internal successors, (868), 3 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:31:00,085 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:31:00,085 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:31:00,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-31 21:31:00,086 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2023-08-31 21:31:00,086 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:31:00,086 INFO L85 PathProgramCache]: Analyzing trace with hash 2019159844, now seen corresponding path program 1 times [2023-08-31 21:31:00,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:31:00,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804970880] [2023-08-31 21:31:00,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:31:00,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:31:00,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:31:00,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:31:00,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:31:00,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804970880] [2023-08-31 21:31:00,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804970880] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:31:00,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:31:00,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:31:00,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879679391] [2023-08-31 21:31:00,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:31:00,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:31:00,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:31:00,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:31:00,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:31:00,148 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 287 out of 600 [2023-08-31 21:31:00,149 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 64 transitions, 201 flow. Second operand has 3 states, 3 states have (on average 289.6666666666667) internal successors, (869), 3 states have internal predecessors, (869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:31:00,149 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:31:00,149 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 287 of 600 [2023-08-31 21:31:00,149 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:31:00,318 INFO L130 PetriNetUnfolder]: 804/1444 cut-off events. [2023-08-31 21:31:00,319 INFO L131 PetriNetUnfolder]: For 69/69 co-relation queries the response was YES. [2023-08-31 21:31:00,322 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3079 conditions, 1444 events. 804/1444 cut-off events. For 69/69 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 8014 event pairs, 296 based on Foata normal form. 0/1149 useless extension candidates. Maximal degree in co-relation 3071. Up to 772 conditions per place. [2023-08-31 21:31:00,324 INFO L137 encePairwiseOnDemand]: 596/600 looper letters, 0 selfloop transitions, 0 changer transitions 90/90 dead transitions. [2023-08-31 21:31:00,324 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 90 transitions, 390 flow [2023-08-31 21:31:00,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:31:00,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:31:00,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 924 transitions. [2023-08-31 21:31:00,327 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5133333333333333 [2023-08-31 21:31:00,327 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 924 transitions. [2023-08-31 21:31:00,327 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 924 transitions. [2023-08-31 21:31:00,328 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:31:00,328 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 924 transitions. [2023-08-31 21:31:00,330 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 308.0) internal successors, (924), 3 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:31:00,333 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 600.0) internal successors, (2400), 4 states have internal predecessors, (2400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:31:00,333 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 600.0) internal successors, (2400), 4 states have internal predecessors, (2400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:31:00,334 INFO L175 Difference]: Start difference. First operand has 61 places, 64 transitions, 201 flow. Second operand 3 states and 924 transitions. [2023-08-31 21:31:00,334 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 90 transitions, 390 flow [2023-08-31 21:31:00,336 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 90 transitions, 390 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:31:00,336 INFO L231 Difference]: Finished difference. Result has 61 places, 0 transitions, 0 flow [2023-08-31 21:31:00,337 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=600, PETRI_DIFFERENCE_MINUEND_FLOW=197, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=61, PETRI_TRANSITIONS=0} [2023-08-31 21:31:00,339 INFO L281 CegarLoopForPetriNet]: 80 programPoint places, -19 predicate places. [2023-08-31 21:31:00,339 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 0 transitions, 0 flow [2023-08-31 21:31:00,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 289.6666666666667) internal successors, (869), 3 states have internal predecessors, (869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:31:00,345 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (51 of 52 remaining) [2023-08-31 21:31:00,345 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (50 of 52 remaining) [2023-08-31 21:31:00,346 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (49 of 52 remaining) [2023-08-31 21:31:00,346 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (48 of 52 remaining) [2023-08-31 21:31:00,346 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (47 of 52 remaining) [2023-08-31 21:31:00,346 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (46 of 52 remaining) [2023-08-31 21:31:00,346 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (45 of 52 remaining) [2023-08-31 21:31:00,346 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (44 of 52 remaining) [2023-08-31 21:31:00,350 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (43 of 52 remaining) [2023-08-31 21:31:00,351 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (42 of 52 remaining) [2023-08-31 21:31:00,351 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (41 of 52 remaining) [2023-08-31 21:31:00,351 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (40 of 52 remaining) [2023-08-31 21:31:00,352 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (39 of 52 remaining) [2023-08-31 21:31:00,352 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (38 of 52 remaining) [2023-08-31 21:31:00,352 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (37 of 52 remaining) [2023-08-31 21:31:00,353 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (36 of 52 remaining) [2023-08-31 21:31:00,353 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (35 of 52 remaining) [2023-08-31 21:31:00,353 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (34 of 52 remaining) [2023-08-31 21:31:00,353 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (33 of 52 remaining) [2023-08-31 21:31:00,353 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (32 of 52 remaining) [2023-08-31 21:31:00,353 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (31 of 52 remaining) [2023-08-31 21:31:00,353 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (30 of 52 remaining) [2023-08-31 21:31:00,354 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (29 of 52 remaining) [2023-08-31 21:31:00,354 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (28 of 52 remaining) [2023-08-31 21:31:00,354 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (27 of 52 remaining) [2023-08-31 21:31:00,354 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (26 of 52 remaining) [2023-08-31 21:31:00,354 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (25 of 52 remaining) [2023-08-31 21:31:00,356 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (24 of 52 remaining) [2023-08-31 21:31:00,356 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (23 of 52 remaining) [2023-08-31 21:31:00,356 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (22 of 52 remaining) [2023-08-31 21:31:00,357 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (21 of 52 remaining) [2023-08-31 21:31:00,357 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (20 of 52 remaining) [2023-08-31 21:31:00,357 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 52 remaining) [2023-08-31 21:31:00,357 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 52 remaining) [2023-08-31 21:31:00,357 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (17 of 52 remaining) [2023-08-31 21:31:00,357 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (16 of 52 remaining) [2023-08-31 21:31:00,358 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (15 of 52 remaining) [2023-08-31 21:31:00,358 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (14 of 52 remaining) [2023-08-31 21:31:00,358 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (13 of 52 remaining) [2023-08-31 21:31:00,358 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (12 of 52 remaining) [2023-08-31 21:31:00,358 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (11 of 52 remaining) [2023-08-31 21:31:00,358 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (10 of 52 remaining) [2023-08-31 21:31:00,359 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (9 of 52 remaining) [2023-08-31 21:31:00,359 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (8 of 52 remaining) [2023-08-31 21:31:00,359 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (7 of 52 remaining) [2023-08-31 21:31:00,359 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (6 of 52 remaining) [2023-08-31 21:31:00,359 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (5 of 52 remaining) [2023-08-31 21:31:00,359 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (4 of 52 remaining) [2023-08-31 21:31:00,359 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (3 of 52 remaining) [2023-08-31 21:31:00,360 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (2 of 52 remaining) [2023-08-31 21:31:00,360 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (1 of 52 remaining) [2023-08-31 21:31:00,360 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (0 of 52 remaining) [2023-08-31 21:31:00,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-31 21:31:00,360 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:31:00,366 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-31 21:31:00,366 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-31 21:31:00,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.08 09:31:00 BasicIcfg [2023-08-31 21:31:00,370 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-31 21:31:00,371 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-31 21:31:00,371 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-31 21:31:00,371 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-31 21:31:00,371 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 09:30:52" (3/4) ... [2023-08-31 21:31:00,374 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-31 21:31:00,397 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-08-31 21:31:00,398 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-08-31 21:31:00,418 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2023-08-31 21:31:00,419 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-31 21:31:00,419 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-31 21:31:00,419 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-31 21:31:00,504 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-31 21:31:00,504 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-31 21:31:00,505 INFO L158 Benchmark]: Toolchain (without parser) took 9227.52ms. Allocated memory was 75.5MB in the beginning and 165.7MB in the end (delta: 90.2MB). Free memory was 49.8MB in the beginning and 134.8MB in the end (delta: -85.1MB). Peak memory consumption was 55.5MB. Max. memory is 16.1GB. [2023-08-31 21:31:00,505 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 75.5MB. Free memory is still 52.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 21:31:00,506 INFO L158 Benchmark]: CACSL2BoogieTranslator took 224.01ms. Allocated memory is still 75.5MB. Free memory was 49.5MB in the beginning and 38.0MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-08-31 21:31:00,506 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.80ms. Allocated memory is still 75.5MB. Free memory was 38.0MB in the beginning and 35.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 21:31:00,506 INFO L158 Benchmark]: Boogie Preprocessor took 26.86ms. Allocated memory is still 75.5MB. Free memory was 35.7MB in the beginning and 33.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 21:31:00,506 INFO L158 Benchmark]: RCFGBuilder took 654.05ms. Allocated memory is still 75.5MB. Free memory was 33.8MB in the beginning and 33.7MB in the end (delta: 134.2kB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-31 21:31:00,507 INFO L158 Benchmark]: TraceAbstraction took 8144.46ms. Allocated memory was 75.5MB in the beginning and 134.2MB in the end (delta: 58.7MB). Free memory was 33.0MB in the beginning and 54.1MB in the end (delta: -21.0MB). Peak memory consumption was 61.8MB. Max. memory is 16.1GB. [2023-08-31 21:31:00,507 INFO L158 Benchmark]: Witness Printer took 134.04ms. Allocated memory was 134.2MB in the beginning and 165.7MB in the end (delta: 31.5MB). Free memory was 54.1MB in the beginning and 134.8MB in the end (delta: -80.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 21:31:00,510 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 75.5MB. Free memory is still 52.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 224.01ms. Allocated memory is still 75.5MB. Free memory was 49.5MB in the beginning and 38.0MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.80ms. Allocated memory is still 75.5MB. Free memory was 38.0MB in the beginning and 35.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.86ms. Allocated memory is still 75.5MB. Free memory was 35.7MB in the beginning and 33.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 654.05ms. Allocated memory is still 75.5MB. Free memory was 33.8MB in the beginning and 33.7MB in the end (delta: 134.2kB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * TraceAbstraction took 8144.46ms. Allocated memory was 75.5MB in the beginning and 134.2MB in the end (delta: 58.7MB). Free memory was 33.0MB in the beginning and 54.1MB in the end (delta: -21.0MB). Peak memory consumption was 61.8MB. Max. memory is 16.1GB. * Witness Printer took 134.04ms. Allocated memory was 134.2MB in the beginning and 165.7MB in the end (delta: 31.5MB). Free memory was 54.1MB in the beginning and 134.8MB in the end (delta: -80.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.6s, 277 PlacesBefore, 80 PlacesAfterwards, 286 TransitionsBefore, 81 TransitionsAfterwards, 15476 CoEnabledTransitionPairs, 8 FixpointIterations, 132 TrivialSequentialCompositions, 108 ConcurrentSequentialCompositions, 12 TrivialYvCompositions, 34 ConcurrentYvCompositions, 8 ChoiceCompositions, 294 TotalNumberOfCompositions, 54733 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 29437, independent: 28507, independent conditional: 0, independent unconditional: 28507, dependent: 930, dependent conditional: 0, dependent unconditional: 930, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 9187, independent: 9101, independent conditional: 0, independent unconditional: 9101, dependent: 86, dependent conditional: 0, dependent unconditional: 86, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 29437, independent: 19406, independent conditional: 0, independent unconditional: 19406, dependent: 844, dependent conditional: 0, dependent unconditional: 844, unknown: 9187, unknown conditional: 0, unknown unconditional: 9187] , Statistics on independence cache: Total cache size (in pairs): 858, Positive cache size: 809, Positive conditional cache size: 0, Positive unconditional cache size: 809, Negative cache size: 49, Negative conditional cache size: 0, Negative unconditional cache size: 49, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 62]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 427 locations, 52 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: 7.9s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 322 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 228 mSDsluCounter, 24 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 57 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 567 IncrementalHoareTripleChecker+Invalid, 624 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 57 mSolverCounterUnsat, 24 mSDtfsCounter, 567 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=201occurred in iteration=7, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 62 NumberOfCodeBlocks, 62 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 68 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 32 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-31 21:31:00,548 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 Result: TRUE