./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/weaver/chl-nzb-file-symm.wvr.c --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/weaver/chl-nzb-file-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 b869eaba59e8dca8d7cb2d1135193e506b8377811cada7a7f67b6d0824dd2d3d --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 03:26:05,358 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 03:26:05,360 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 03:26:05,395 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 03:26:05,400 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 03:26:05,403 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 03:26:05,404 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 03:26:05,406 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 03:26:05,408 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 03:26:05,412 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 03:26:05,413 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 03:26:05,415 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 03:26:05,416 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 03:26:05,417 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 03:26:05,418 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 03:26:05,423 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 03:26:05,424 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 03:26:05,425 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 03:26:05,426 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 03:26:05,430 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 03:26:05,431 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 03:26:05,432 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 03:26:05,432 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 03:26:05,433 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 03:26:05,437 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 03:26:05,437 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 03:26:05,437 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 03:26:05,439 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 03:26:05,439 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 03:26:05,440 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 03:26:05,440 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 03:26:05,445 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 03:26:05,447 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 03:26:05,447 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 03:26:05,448 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 03:26:05,448 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 03:26:05,448 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 03:26:05,448 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 03:26:05,449 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 03:26:05,449 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 03:26:05,450 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 03:26:05,451 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 03:26:05,474 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 03:26:05,474 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 03:26:05,475 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 03:26:05,475 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 03:26:05,476 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 03:26:05,476 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 03:26:05,476 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 03:26:05,476 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 03:26:05,476 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 03:26:05,477 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 03:26:05,477 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 03:26:05,477 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 03:26:05,477 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 03:26:05,478 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 03:26:05,478 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 03:26:05,478 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 03:26:05,478 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 03:26:05,478 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 03:26:05,478 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 03:26:05,478 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 03:26:05,479 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 03:26:05,479 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 03:26:05,479 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 03:26:05,479 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 03:26:05,479 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 03:26:05,479 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 03:26:05,479 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 03:26:05,480 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 03:26:05,480 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 03:26:05,480 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 03:26:05,480 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 03:26:05,480 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 03:26:05,480 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 03:26:05,480 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 03:26:05,481 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 03:26:05,481 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 03:26:05,481 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 03:26:05,481 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b869eaba59e8dca8d7cb2d1135193e506b8377811cada7a7f67b6d0824dd2d3d Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-29 03:26:05,746 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 03:26:05,760 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 03:26:05,762 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 03:26:05,763 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 03:26:05,763 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 03:26:05,764 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-nzb-file-symm.wvr.c [2023-08-29 03:26:06,846 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 03:26:07,045 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 03:26:07,046 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-nzb-file-symm.wvr.c [2023-08-29 03:26:07,052 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05e157d5e/054b76b748bd4360ba69f60e7f9e1c5b/FLAG0f3d8ae73 [2023-08-29 03:26:07,069 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05e157d5e/054b76b748bd4360ba69f60e7f9e1c5b [2023-08-29 03:26:07,070 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 03:26:07,071 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 03:26:07,075 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 03:26:07,075 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 03:26:07,077 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 03:26:07,077 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 03:26:07" (1/1) ... [2023-08-29 03:26:07,078 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a5fbd6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:26:07, skipping insertion in model container [2023-08-29 03:26:07,078 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 03:26:07" (1/1) ... [2023-08-29 03:26:07,082 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 03:26:07,104 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 03:26:07,285 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-nzb-file-symm.wvr.c[4929,4942] [2023-08-29 03:26:07,296 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 03:26:07,303 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 03:26:07,344 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-nzb-file-symm.wvr.c[4929,4942] [2023-08-29 03:26:07,358 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 03:26:07,369 INFO L208 MainTranslator]: Completed translation [2023-08-29 03:26:07,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:26:07 WrapperNode [2023-08-29 03:26:07,369 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 03:26:07,370 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 03:26:07,370 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 03:26:07,370 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 03:26:07,374 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:26:07" (1/1) ... [2023-08-29 03:26:07,389 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:26:07" (1/1) ... [2023-08-29 03:26:07,436 INFO L138 Inliner]: procedures = 25, calls = 55, calls flagged for inlining = 21, calls inlined = 29, statements flattened = 900 [2023-08-29 03:26:07,436 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 03:26:07,437 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 03:26:07,437 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 03:26:07,446 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 03:26:07,452 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:26:07" (1/1) ... [2023-08-29 03:26:07,452 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:26:07" (1/1) ... [2023-08-29 03:26:07,458 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:26:07" (1/1) ... [2023-08-29 03:26:07,472 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:26:07" (1/1) ... [2023-08-29 03:26:07,486 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:26:07" (1/1) ... [2023-08-29 03:26:07,496 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:26:07" (1/1) ... [2023-08-29 03:26:07,499 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:26:07" (1/1) ... [2023-08-29 03:26:07,501 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:26:07" (1/1) ... [2023-08-29 03:26:07,505 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 03:26:07,506 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 03:26:07,506 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 03:26:07,506 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 03:26:07,507 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:26:07" (1/1) ... [2023-08-29 03:26:07,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 03:26:07,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 03:26:07,537 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-29 03:26:07,558 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-29 03:26:07,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 03:26:07,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 03:26:07,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 03:26:07,579 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 03:26:07,580 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-29 03:26:07,580 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-29 03:26:07,580 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-29 03:26:07,580 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-29 03:26:07,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 03:26:07,580 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-29 03:26:07,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 03:26:07,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 03:26:07,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 03:26:07,582 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 03:26:07,721 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 03:26:07,723 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 03:26:08,533 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 03:26:08,548 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 03:26:08,548 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-08-29 03:26:08,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 03:26:08 BoogieIcfgContainer [2023-08-29 03:26:08,551 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 03:26:08,553 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 03:26:08,553 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 03:26:08,555 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 03:26:08,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 03:26:07" (1/3) ... [2023-08-29 03:26:08,556 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@173efff9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 03:26:08, skipping insertion in model container [2023-08-29 03:26:08,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:26:07" (2/3) ... [2023-08-29 03:26:08,556 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@173efff9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 03:26:08, skipping insertion in model container [2023-08-29 03:26:08,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 03:26:08" (3/3) ... [2023-08-29 03:26:08,557 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-nzb-file-symm.wvr.c [2023-08-29 03:26:08,562 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 03:26:08,568 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 03:26:08,568 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 154 error locations. [2023-08-29 03:26:08,568 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 03:26:08,704 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-29 03:26:08,755 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1083 places, 1151 transitions, 2318 flow [2023-08-29 03:26:09,274 INFO L130 PetriNetUnfolder]: 75/1149 cut-off events. [2023-08-29 03:26:09,274 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-29 03:26:09,298 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1158 conditions, 1149 events. 75/1149 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 4088 event pairs, 0 based on Foata normal form. 0/920 useless extension candidates. Maximal degree in co-relation 885. Up to 2 conditions per place. [2023-08-29 03:26:09,299 INFO L82 GeneralOperation]: Start removeDead. Operand has 1083 places, 1151 transitions, 2318 flow [2023-08-29 03:26:09,328 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1063 places, 1129 transitions, 2270 flow [2023-08-29 03:26:09,331 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 03:26:09,343 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1063 places, 1129 transitions, 2270 flow [2023-08-29 03:26:09,346 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1063 places, 1129 transitions, 2270 flow [2023-08-29 03:26:09,346 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1063 places, 1129 transitions, 2270 flow [2023-08-29 03:26:09,645 INFO L130 PetriNetUnfolder]: 73/1129 cut-off events. [2023-08-29 03:26:09,645 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-29 03:26:09,663 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1138 conditions, 1129 events. 73/1129 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 3962 event pairs, 0 based on Foata normal form. 0/903 useless extension candidates. Maximal degree in co-relation 885. Up to 2 conditions per place. [2023-08-29 03:26:09,763 INFO L119 LiptonReduction]: Number of co-enabled transitions 403556 [2023-08-29 03:26:28,440 INFO L134 LiptonReduction]: Checked pairs total: 990545 [2023-08-29 03:26:28,441 INFO L136 LiptonReduction]: Total number of compositions: 1259 [2023-08-29 03:26:28,474 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 03:26:28,480 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;@2770659c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 03:26:28,481 INFO L358 AbstractCegarLoop]: Starting to check reachability of 288 error locations. [2023-08-29 03:26:28,498 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 03:26:28,498 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 03:26:28,498 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:26:28,499 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 03:26:28,500 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 284 more)] === [2023-08-29 03:26:28,503 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:26:28,503 INFO L85 PathProgramCache]: Analyzing trace with hash 4725, now seen corresponding path program 1 times [2023-08-29 03:26:28,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:26:28,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996164132] [2023-08-29 03:26:28,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:26:28,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:26:28,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:26:28,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:26:28,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:26:28,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996164132] [2023-08-29 03:26:28,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996164132] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:26:28,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:26:28,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 03:26:28,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812176172] [2023-08-29 03:26:28,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:26:28,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 03:26:28,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:26:28,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 03:26:28,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 03:26:28,618 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1121 out of 2410 [2023-08-29 03:26:28,625 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 329 transitions, 670 flow. Second operand has 2 states, 2 states have (on average 1121.5) internal successors, (2243), 2 states have internal predecessors, (2243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:28,625 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:26:28,625 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1121 of 2410 [2023-08-29 03:26:28,626 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:26:29,932 INFO L130 PetriNetUnfolder]: 9483/18581 cut-off events. [2023-08-29 03:26:29,932 INFO L131 PetriNetUnfolder]: For 179/314 co-relation queries the response was YES. [2023-08-29 03:26:30,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32919 conditions, 18581 events. 9483/18581 cut-off events. For 179/314 co-relation queries the response was YES. Maximal size of possible extension queue 520. Compared 152201 event pairs, 6765 based on Foata normal form. 193/15851 useless extension candidates. Maximal degree in co-relation 32248. Up to 14190 conditions per place. [2023-08-29 03:26:30,145 INFO L137 encePairwiseOnDemand]: 2313/2410 looper letters, 132 selfloop transitions, 0 changer transitions 1/232 dead transitions. [2023-08-29 03:26:30,146 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 232 transitions, 742 flow [2023-08-29 03:26:30,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 03:26:30,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 03:26:30,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 2472 transitions. [2023-08-29 03:26:30,160 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.512863070539419 [2023-08-29 03:26:30,160 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 2472 transitions. [2023-08-29 03:26:30,161 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 2472 transitions. [2023-08-29 03:26:30,163 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:26:30,165 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 2472 transitions. [2023-08-29 03:26:30,171 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 1236.0) internal successors, (2472), 2 states have internal predecessors, (2472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:30,179 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 2410.0) internal successors, (7230), 3 states have internal predecessors, (7230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:30,182 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 2410.0) internal successors, (7230), 3 states have internal predecessors, (7230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:30,183 INFO L175 Difference]: Start difference. First operand has 303 places, 329 transitions, 670 flow. Second operand 2 states and 2472 transitions. [2023-08-29 03:26:30,184 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 232 transitions, 742 flow [2023-08-29 03:26:30,187 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 232 transitions, 734 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-29 03:26:30,190 INFO L231 Difference]: Finished difference. Result has 206 places, 231 transitions, 465 flow [2023-08-29 03:26:30,192 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2410, PETRI_DIFFERENCE_MINUEND_FLOW=468, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=232, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=465, PETRI_PLACES=206, PETRI_TRANSITIONS=231} [2023-08-29 03:26:30,194 INFO L281 CegarLoopForPetriNet]: 303 programPoint places, -97 predicate places. [2023-08-29 03:26:30,194 INFO L495 AbstractCegarLoop]: Abstraction has has 206 places, 231 transitions, 465 flow [2023-08-29 03:26:30,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 1121.5) internal successors, (2243), 2 states have internal predecessors, (2243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:30,195 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:26:30,196 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-29 03:26:30,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 03:26:30,197 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 284 more)] === [2023-08-29 03:26:30,204 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:26:30,205 INFO L85 PathProgramCache]: Analyzing trace with hash -720943156, now seen corresponding path program 1 times [2023-08-29 03:26:30,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:26:30,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689309765] [2023-08-29 03:26:30,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:26:30,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:26:30,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:26:30,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:26:30,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:26:30,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689309765] [2023-08-29 03:26:30,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689309765] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:26:30,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:26:30,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 03:26:30,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967316941] [2023-08-29 03:26:30,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:26:30,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:26:30,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:26:30,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:26:30,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:26:30,424 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1113 out of 2410 [2023-08-29 03:26:30,427 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 231 transitions, 465 flow. Second operand has 3 states, 3 states have (on average 1114.6666666666667) internal successors, (3344), 3 states have internal predecessors, (3344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:30,427 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:26:30,427 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1113 of 2410 [2023-08-29 03:26:30,427 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:26:31,610 INFO L130 PetriNetUnfolder]: 9483/18582 cut-off events. [2023-08-29 03:26:31,611 INFO L131 PetriNetUnfolder]: For 42/177 co-relation queries the response was YES. [2023-08-29 03:26:31,636 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32823 conditions, 18582 events. 9483/18582 cut-off events. For 42/177 co-relation queries the response was YES. Maximal size of possible extension queue 520. Compared 152212 event pairs, 6765 based on Foata normal form. 0/15659 useless extension candidates. Maximal degree in co-relation 32820. Up to 14189 conditions per place. [2023-08-29 03:26:31,702 INFO L137 encePairwiseOnDemand]: 2405/2410 looper letters, 130 selfloop transitions, 4 changer transitions 0/233 dead transitions. [2023-08-29 03:26:31,702 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 233 transitions, 737 flow [2023-08-29 03:26:31,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:26:31,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:26:31,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3475 transitions. [2023-08-29 03:26:31,708 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4806362378976487 [2023-08-29 03:26:31,709 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3475 transitions. [2023-08-29 03:26:31,709 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3475 transitions. [2023-08-29 03:26:31,710 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:26:31,710 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3475 transitions. [2023-08-29 03:26:31,715 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1158.3333333333333) internal successors, (3475), 3 states have internal predecessors, (3475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:31,724 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2410.0) internal successors, (9640), 4 states have internal predecessors, (9640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:31,727 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2410.0) internal successors, (9640), 4 states have internal predecessors, (9640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:31,727 INFO L175 Difference]: Start difference. First operand has 206 places, 231 transitions, 465 flow. Second operand 3 states and 3475 transitions. [2023-08-29 03:26:31,727 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 233 transitions, 737 flow [2023-08-29 03:26:31,730 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 233 transitions, 737 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:26:31,734 INFO L231 Difference]: Finished difference. Result has 208 places, 233 transitions, 487 flow [2023-08-29 03:26:31,735 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2410, PETRI_DIFFERENCE_MINUEND_FLOW=465, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=231, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=487, PETRI_PLACES=208, PETRI_TRANSITIONS=233} [2023-08-29 03:26:31,736 INFO L281 CegarLoopForPetriNet]: 303 programPoint places, -95 predicate places. [2023-08-29 03:26:31,736 INFO L495 AbstractCegarLoop]: Abstraction has has 208 places, 233 transitions, 487 flow [2023-08-29 03:26:31,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1114.6666666666667) internal successors, (3344), 3 states have internal predecessors, (3344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:31,738 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:26:31,738 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:26:31,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 03:26:31,738 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 284 more)] === [2023-08-29 03:26:31,739 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:26:31,739 INFO L85 PathProgramCache]: Analyzing trace with hash 313359369, now seen corresponding path program 1 times [2023-08-29 03:26:31,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:26:31,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198809816] [2023-08-29 03:26:31,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:26:31,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:26:31,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:26:31,826 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-29 03:26:31,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:26:31,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198809816] [2023-08-29 03:26:31,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198809816] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:26:31,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:26:31,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:26:31,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662421385] [2023-08-29 03:26:31,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:26:31,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:26:31,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:26:31,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:26:31,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:26:31,850 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1096 out of 2410 [2023-08-29 03:26:31,853 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 233 transitions, 487 flow. Second operand has 3 states, 3 states have (on average 1098.6666666666667) internal successors, (3296), 3 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:31,854 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:26:31,855 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1096 of 2410 [2023-08-29 03:26:31,855 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:26:32,981 INFO L130 PetriNetUnfolder]: 10050/19265 cut-off events. [2023-08-29 03:26:32,981 INFO L131 PetriNetUnfolder]: For 35/35 co-relation queries the response was YES. [2023-08-29 03:26:33,012 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34397 conditions, 19265 events. 10050/19265 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 541. Compared 155581 event pairs, 3416 based on Foata normal form. 0/16244 useless extension candidates. Maximal degree in co-relation 34392. Up to 15018 conditions per place. [2023-08-29 03:26:33,076 INFO L137 encePairwiseOnDemand]: 2396/2410 looper letters, 154 selfloop transitions, 6 changer transitions 0/248 dead transitions. [2023-08-29 03:26:33,076 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 248 transitions, 838 flow [2023-08-29 03:26:33,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:26:33,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:26:33,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3454 transitions. [2023-08-29 03:26:33,083 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.477731673582296 [2023-08-29 03:26:33,083 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3454 transitions. [2023-08-29 03:26:33,083 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3454 transitions. [2023-08-29 03:26:33,084 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:26:33,085 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3454 transitions. [2023-08-29 03:26:33,090 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1151.3333333333333) internal successors, (3454), 3 states have internal predecessors, (3454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:33,101 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2410.0) internal successors, (9640), 4 states have internal predecessors, (9640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:33,103 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2410.0) internal successors, (9640), 4 states have internal predecessors, (9640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:33,104 INFO L175 Difference]: Start difference. First operand has 208 places, 233 transitions, 487 flow. Second operand 3 states and 3454 transitions. [2023-08-29 03:26:33,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 248 transitions, 838 flow [2023-08-29 03:26:33,106 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 248 transitions, 834 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 03:26:33,108 INFO L231 Difference]: Finished difference. Result has 202 places, 231 transitions, 509 flow [2023-08-29 03:26:33,108 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2410, PETRI_DIFFERENCE_MINUEND_FLOW=467, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=219, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=509, PETRI_PLACES=202, PETRI_TRANSITIONS=231} [2023-08-29 03:26:33,109 INFO L281 CegarLoopForPetriNet]: 303 programPoint places, -101 predicate places. [2023-08-29 03:26:33,112 INFO L495 AbstractCegarLoop]: Abstraction has has 202 places, 231 transitions, 509 flow [2023-08-29 03:26:33,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1098.6666666666667) internal successors, (3296), 3 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:33,123 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:26:33,123 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:26:33,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 03:26:33,123 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 284 more)] === [2023-08-29 03:26:33,124 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:26:33,124 INFO L85 PathProgramCache]: Analyzing trace with hash 491857000, now seen corresponding path program 1 times [2023-08-29 03:26:33,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:26:33,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410805034] [2023-08-29 03:26:33,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:26:33,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:26:33,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:26:33,192 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-29 03:26:33,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:26:33,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410805034] [2023-08-29 03:26:33,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410805034] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:26:33,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:26:33,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:26:33,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104579053] [2023-08-29 03:26:33,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:26:33,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:26:33,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:26:33,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:26:33,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:26:33,217 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1096 out of 2410 [2023-08-29 03:26:33,220 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 231 transitions, 509 flow. Second operand has 3 states, 3 states have (on average 1099.3333333333333) internal successors, (3298), 3 states have internal predecessors, (3298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:33,220 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:26:33,221 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1096 of 2410 [2023-08-29 03:26:33,223 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:26:34,317 INFO L130 PetriNetUnfolder]: 10142/19384 cut-off events. [2023-08-29 03:26:34,318 INFO L131 PetriNetUnfolder]: For 289/339 co-relation queries the response was YES. [2023-08-29 03:26:34,359 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35263 conditions, 19384 events. 10142/19384 cut-off events. For 289/339 co-relation queries the response was YES. Maximal size of possible extension queue 539. Compared 155218 event pairs, 3261 based on Foata normal form. 0/16209 useless extension candidates. Maximal degree in co-relation 35258. Up to 15087 conditions per place. [2023-08-29 03:26:34,423 INFO L137 encePairwiseOnDemand]: 2396/2410 looper letters, 161 selfloop transitions, 6 changer transitions 0/249 dead transitions. [2023-08-29 03:26:34,424 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 249 transitions, 887 flow [2023-08-29 03:26:34,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:26:34,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:26:34,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3457 transitions. [2023-08-29 03:26:34,430 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4781466113416321 [2023-08-29 03:26:34,430 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3457 transitions. [2023-08-29 03:26:34,430 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3457 transitions. [2023-08-29 03:26:34,431 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:26:34,432 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3457 transitions. [2023-08-29 03:26:34,436 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1152.3333333333333) internal successors, (3457), 3 states have internal predecessors, (3457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:34,443 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2410.0) internal successors, (9640), 4 states have internal predecessors, (9640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:34,444 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2410.0) internal successors, (9640), 4 states have internal predecessors, (9640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:34,444 INFO L175 Difference]: Start difference. First operand has 202 places, 231 transitions, 509 flow. Second operand 3 states and 3457 transitions. [2023-08-29 03:26:34,445 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 249 transitions, 887 flow [2023-08-29 03:26:34,447 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 249 transitions, 887 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:26:34,449 INFO L231 Difference]: Finished difference. Result has 197 places, 229 transitions, 535 flow [2023-08-29 03:26:34,450 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2410, PETRI_DIFFERENCE_MINUEND_FLOW=493, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=223, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=535, PETRI_PLACES=197, PETRI_TRANSITIONS=229} [2023-08-29 03:26:34,450 INFO L281 CegarLoopForPetriNet]: 303 programPoint places, -106 predicate places. [2023-08-29 03:26:34,451 INFO L495 AbstractCegarLoop]: Abstraction has has 197 places, 229 transitions, 535 flow [2023-08-29 03:26:34,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1099.3333333333333) internal successors, (3298), 3 states have internal predecessors, (3298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:34,452 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:26:34,452 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:26:34,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 03:26:34,452 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err53ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 284 more)] === [2023-08-29 03:26:34,452 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:26:34,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1454080913, now seen corresponding path program 1 times [2023-08-29 03:26:34,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:26:34,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099900680] [2023-08-29 03:26:34,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:26:34,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:26:34,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:26:34,494 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-29 03:26:34,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:26:34,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099900680] [2023-08-29 03:26:34,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099900680] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:26:34,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:26:34,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 03:26:34,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477534187] [2023-08-29 03:26:34,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:26:34,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:26:34,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:26:34,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:26:34,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:26:34,541 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1117 out of 2410 [2023-08-29 03:26:34,543 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 229 transitions, 535 flow. Second operand has 3 states, 3 states have (on average 1121.0) internal successors, (3363), 3 states have internal predecessors, (3363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:34,543 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:26:34,543 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1117 of 2410 [2023-08-29 03:26:34,543 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:26:36,453 INFO L130 PetriNetUnfolder]: 15398/31430 cut-off events. [2023-08-29 03:26:36,454 INFO L131 PetriNetUnfolder]: For 925/1094 co-relation queries the response was YES. [2023-08-29 03:26:36,521 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56140 conditions, 31430 events. 15398/31430 cut-off events. For 925/1094 co-relation queries the response was YES. Maximal size of possible extension queue 577. Compared 276044 event pairs, 6462 based on Foata normal form. 1/26705 useless extension candidates. Maximal degree in co-relation 56134. Up to 14282 conditions per place. [2023-08-29 03:26:36,615 INFO L137 encePairwiseOnDemand]: 2407/2410 looper letters, 242 selfloop transitions, 2 changer transitions 0/330 dead transitions. [2023-08-29 03:26:36,616 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 330 transitions, 1235 flow [2023-08-29 03:26:36,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:26:36,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:26:36,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3585 transitions. [2023-08-29 03:26:36,622 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.495850622406639 [2023-08-29 03:26:36,622 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3585 transitions. [2023-08-29 03:26:36,622 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3585 transitions. [2023-08-29 03:26:36,623 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:26:36,623 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3585 transitions. [2023-08-29 03:26:36,627 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1195.0) internal successors, (3585), 3 states have internal predecessors, (3585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:36,634 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2410.0) internal successors, (9640), 4 states have internal predecessors, (9640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:36,635 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2410.0) internal successors, (9640), 4 states have internal predecessors, (9640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:36,636 INFO L175 Difference]: Start difference. First operand has 197 places, 229 transitions, 535 flow. Second operand 3 states and 3585 transitions. [2023-08-29 03:26:36,636 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 330 transitions, 1235 flow [2023-08-29 03:26:36,638 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 330 transitions, 1235 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:26:36,641 INFO L231 Difference]: Finished difference. Result has 200 places, 230 transitions, 547 flow [2023-08-29 03:26:36,641 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2410, PETRI_DIFFERENCE_MINUEND_FLOW=535, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=547, PETRI_PLACES=200, PETRI_TRANSITIONS=230} [2023-08-29 03:26:36,642 INFO L281 CegarLoopForPetriNet]: 303 programPoint places, -103 predicate places. [2023-08-29 03:26:36,642 INFO L495 AbstractCegarLoop]: Abstraction has has 200 places, 230 transitions, 547 flow [2023-08-29 03:26:36,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1121.0) internal successors, (3363), 3 states have internal predecessors, (3363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:36,643 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:26:36,643 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:26:36,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 03:26:36,643 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 284 more)] === [2023-08-29 03:26:36,644 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:26:36,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1454083586, now seen corresponding path program 1 times [2023-08-29 03:26:36,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:26:36,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862112266] [2023-08-29 03:26:36,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:26:36,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:26:36,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:26:36,671 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-29 03:26:36,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:26:36,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862112266] [2023-08-29 03:26:36,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862112266] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:26:36,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:26:36,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:26:36,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865816331] [2023-08-29 03:26:36,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:26:36,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:26:36,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:26:36,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:26:36,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:26:36,694 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1096 out of 2410 [2023-08-29 03:26:36,696 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 230 transitions, 547 flow. Second operand has 3 states, 3 states have (on average 1100.3333333333333) internal successors, (3301), 3 states have internal predecessors, (3301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:36,696 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:26:36,696 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1096 of 2410 [2023-08-29 03:26:36,696 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:26:38,985 INFO L130 PetriNetUnfolder]: 18568/35180 cut-off events. [2023-08-29 03:26:38,986 INFO L131 PetriNetUnfolder]: For 1718/1887 co-relation queries the response was YES. [2023-08-29 03:26:39,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65633 conditions, 35180 events. 18568/35180 cut-off events. For 1718/1887 co-relation queries the response was YES. Maximal size of possible extension queue 696. Compared 293796 event pairs, 3632 based on Foata normal form. 1/30109 useless extension candidates. Maximal degree in co-relation 65625. Up to 22646 conditions per place. [2023-08-29 03:26:39,177 INFO L137 encePairwiseOnDemand]: 2397/2410 looper letters, 224 selfloop transitions, 5 changer transitions 0/304 dead transitions. [2023-08-29 03:26:39,177 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 304 transitions, 1176 flow [2023-08-29 03:26:39,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:26:39,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:26:39,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3513 transitions. [2023-08-29 03:26:39,183 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4858921161825726 [2023-08-29 03:26:39,183 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3513 transitions. [2023-08-29 03:26:39,183 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3513 transitions. [2023-08-29 03:26:39,184 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:26:39,184 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3513 transitions. [2023-08-29 03:26:39,331 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1171.0) internal successors, (3513), 3 states have internal predecessors, (3513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:39,341 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2410.0) internal successors, (9640), 4 states have internal predecessors, (9640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:39,343 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2410.0) internal successors, (9640), 4 states have internal predecessors, (9640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:39,343 INFO L175 Difference]: Start difference. First operand has 200 places, 230 transitions, 547 flow. Second operand 3 states and 3513 transitions. [2023-08-29 03:26:39,343 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 304 transitions, 1176 flow [2023-08-29 03:26:39,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 304 transitions, 1173 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 03:26:39,355 INFO L231 Difference]: Finished difference. Result has 194 places, 227 transitions, 564 flow [2023-08-29 03:26:39,355 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2410, PETRI_DIFFERENCE_MINUEND_FLOW=529, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=222, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=564, PETRI_PLACES=194, PETRI_TRANSITIONS=227} [2023-08-29 03:26:39,356 INFO L281 CegarLoopForPetriNet]: 303 programPoint places, -109 predicate places. [2023-08-29 03:26:39,356 INFO L495 AbstractCegarLoop]: Abstraction has has 194 places, 227 transitions, 564 flow [2023-08-29 03:26:39,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1100.3333333333333) internal successors, (3301), 3 states have internal predecessors, (3301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:39,357 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:26:39,357 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:26:39,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 03:26:39,357 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err56ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 284 more)] === [2023-08-29 03:26:39,357 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:26:39,357 INFO L85 PathProgramCache]: Analyzing trace with hash -1454080854, now seen corresponding path program 1 times [2023-08-29 03:26:39,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:26:39,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467534167] [2023-08-29 03:26:39,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:26:39,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:26:39,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:26:39,382 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-29 03:26:39,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:26:39,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467534167] [2023-08-29 03:26:39,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467534167] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:26:39,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:26:39,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:26:39,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890234190] [2023-08-29 03:26:39,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:26:39,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:26:39,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:26:39,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:26:39,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:26:39,427 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1105 out of 2410 [2023-08-29 03:26:39,428 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 227 transitions, 564 flow. Second operand has 3 states, 3 states have (on average 1109.3333333333333) internal successors, (3328), 3 states have internal predecessors, (3328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:39,429 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:26:39,429 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1105 of 2410 [2023-08-29 03:26:39,429 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:26:41,649 INFO L130 PetriNetUnfolder]: 17599/33675 cut-off events. [2023-08-29 03:26:41,650 INFO L131 PetriNetUnfolder]: For 1876/2047 co-relation queries the response was YES. [2023-08-29 03:26:41,715 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63653 conditions, 33675 events. 17599/33675 cut-off events. For 1876/2047 co-relation queries the response was YES. Maximal size of possible extension queue 701. Compared 283670 event pairs, 11954 based on Foata normal form. 3/29336 useless extension candidates. Maximal degree in co-relation 63645. Up to 25744 conditions per place. [2023-08-29 03:26:41,805 INFO L137 encePairwiseOnDemand]: 2406/2410 looper letters, 212 selfloop transitions, 3 changer transitions 0/293 dead transitions. [2023-08-29 03:26:41,806 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 195 places, 293 transitions, 1150 flow [2023-08-29 03:26:41,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:26:41,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:26:41,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3512 transitions. [2023-08-29 03:26:41,812 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48575380359612724 [2023-08-29 03:26:41,812 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3512 transitions. [2023-08-29 03:26:41,813 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3512 transitions. [2023-08-29 03:26:41,814 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:26:41,814 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3512 transitions. [2023-08-29 03:26:41,818 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1170.6666666666667) internal successors, (3512), 3 states have internal predecessors, (3512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:41,826 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2410.0) internal successors, (9640), 4 states have internal predecessors, (9640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:41,827 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2410.0) internal successors, (9640), 4 states have internal predecessors, (9640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:41,827 INFO L175 Difference]: Start difference. First operand has 194 places, 227 transitions, 564 flow. Second operand 3 states and 3512 transitions. [2023-08-29 03:26:41,827 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 195 places, 293 transitions, 1150 flow [2023-08-29 03:26:41,831 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 293 transitions, 1150 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:26:41,834 INFO L231 Difference]: Finished difference. Result has 195 places, 226 transitions, 568 flow [2023-08-29 03:26:41,834 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2410, PETRI_DIFFERENCE_MINUEND_FLOW=562, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=568, PETRI_PLACES=195, PETRI_TRANSITIONS=226} [2023-08-29 03:26:41,835 INFO L281 CegarLoopForPetriNet]: 303 programPoint places, -108 predicate places. [2023-08-29 03:26:41,835 INFO L495 AbstractCegarLoop]: Abstraction has has 195 places, 226 transitions, 568 flow [2023-08-29 03:26:41,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1109.3333333333333) internal successors, (3328), 3 states have internal predecessors, (3328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:41,836 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:26:41,836 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:26:41,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 03:26:41,836 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 284 more)] === [2023-08-29 03:26:41,837 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:26:41,837 INFO L85 PathProgramCache]: Analyzing trace with hash 574972573, now seen corresponding path program 1 times [2023-08-29 03:26:41,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:26:41,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827612631] [2023-08-29 03:26:41,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:26:41,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:26:41,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:26:41,912 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-29 03:26:41,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:26:41,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827612631] [2023-08-29 03:26:41,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827612631] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 03:26:41,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [494345459] [2023-08-29 03:26:41,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:26:41,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 03:26:41,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 03:26:41,915 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 03:26:41,916 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-29 03:26:42,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:26:42,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-29 03:26:42,039 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 03:26:42,114 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-29 03:26:42,114 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 03:26:42,131 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-29 03:26:42,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [494345459] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 03:26:42,131 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 03:26:42,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 8 [2023-08-29 03:26:42,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091661520] [2023-08-29 03:26:42,132 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 03:26:42,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-29 03:26:42,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:26:42,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-29 03:26:42,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2023-08-29 03:26:42,226 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1109 out of 2410 [2023-08-29 03:26:42,231 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 226 transitions, 568 flow. Second operand has 8 states, 8 states have (on average 1111.125) internal successors, (8889), 8 states have internal predecessors, (8889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:42,231 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:26:42,231 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1109 of 2410 [2023-08-29 03:26:42,231 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:26:44,745 INFO L130 PetriNetUnfolder]: 17601/33763 cut-off events. [2023-08-29 03:26:44,745 INFO L131 PetriNetUnfolder]: For 2253/2422 co-relation queries the response was YES. [2023-08-29 03:26:44,805 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64344 conditions, 33763 events. 17601/33763 cut-off events. For 2253/2422 co-relation queries the response was YES. Maximal size of possible extension queue 705. Compared 284968 event pairs, 12311 based on Foata normal form. 0/29409 useless extension candidates. Maximal degree in co-relation 64335. Up to 26507 conditions per place. [2023-08-29 03:26:44,901 INFO L137 encePairwiseOnDemand]: 2405/2410 looper letters, 144 selfloop transitions, 10 changer transitions 0/232 dead transitions. [2023-08-29 03:26:44,902 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 232 transitions, 900 flow [2023-08-29 03:26:44,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 03:26:44,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 03:26:44,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6800 transitions. [2023-08-29 03:26:44,913 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4702627939142462 [2023-08-29 03:26:44,913 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 6800 transitions. [2023-08-29 03:26:44,913 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 6800 transitions. [2023-08-29 03:26:44,916 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:26:44,916 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 6800 transitions. [2023-08-29 03:26:44,924 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 1133.3333333333333) internal successors, (6800), 6 states have internal predecessors, (6800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:44,934 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 2410.0) internal successors, (16870), 7 states have internal predecessors, (16870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:44,936 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 2410.0) internal successors, (16870), 7 states have internal predecessors, (16870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:44,936 INFO L175 Difference]: Start difference. First operand has 195 places, 226 transitions, 568 flow. Second operand 6 states and 6800 transitions. [2023-08-29 03:26:44,936 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 232 transitions, 900 flow [2023-08-29 03:26:44,951 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 232 transitions, 894 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 03:26:44,953 INFO L231 Difference]: Finished difference. Result has 201 places, 232 transitions, 628 flow [2023-08-29 03:26:44,953 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2410, PETRI_DIFFERENCE_MINUEND_FLOW=562, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=220, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=628, PETRI_PLACES=201, PETRI_TRANSITIONS=232} [2023-08-29 03:26:44,954 INFO L281 CegarLoopForPetriNet]: 303 programPoint places, -102 predicate places. [2023-08-29 03:26:44,954 INFO L495 AbstractCegarLoop]: Abstraction has has 201 places, 232 transitions, 628 flow [2023-08-29 03:26:44,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1111.125) internal successors, (8889), 8 states have internal predecessors, (8889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:44,956 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:26:44,956 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:26:44,974 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-08-29 03:26:45,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 03:26:45,161 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 284 more)] === [2023-08-29 03:26:45,162 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:26:45,162 INFO L85 PathProgramCache]: Analyzing trace with hash 273113082, now seen corresponding path program 2 times [2023-08-29 03:26:45,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:26:45,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920940145] [2023-08-29 03:26:45,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:26:45,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:26:45,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:26:45,311 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-29 03:26:45,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:26:45,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920940145] [2023-08-29 03:26:45,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920940145] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 03:26:45,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [224643528] [2023-08-29 03:26:45,314 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-29 03:26:45,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 03:26:45,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 03:26:45,331 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 03:26:45,357 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-29 03:26:45,477 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-29 03:26:45,477 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-29 03:26:45,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 19 conjunts are in the unsatisfiable core [2023-08-29 03:26:45,481 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 03:26:45,534 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-29 03:26:45,560 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-08-29 03:26:45,593 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-29 03:26:45,593 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2023-08-29 03:26:45,625 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-29 03:26:45,626 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2023-08-29 03:26:45,645 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-29 03:26:45,646 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-29 03:26:45,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [224643528] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:26:45,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-29 03:26:45,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 12 [2023-08-29 03:26:45,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249068287] [2023-08-29 03:26:45,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:26:45,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-29 03:26:45,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:26:45,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-29 03:26:45,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-08-29 03:26:45,959 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1110 out of 2410 [2023-08-29 03:26:45,963 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 232 transitions, 628 flow. Second operand has 7 states, 7 states have (on average 1111.857142857143) internal successors, (7783), 7 states have internal predecessors, (7783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:45,963 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:26:45,964 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1110 of 2410 [2023-08-29 03:26:45,964 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:26:52,879 INFO L130 PetriNetUnfolder]: 62009/93500 cut-off events. [2023-08-29 03:26:52,879 INFO L131 PetriNetUnfolder]: For 6850/6851 co-relation queries the response was YES. [2023-08-29 03:26:53,233 INFO L83 FinitePrefix]: Finished finitePrefix Result has 191963 conditions, 93500 events. 62009/93500 cut-off events. For 6850/6851 co-relation queries the response was YES. Maximal size of possible extension queue 1456. Compared 700282 event pairs, 3970 based on Foata normal form. 0/82547 useless extension candidates. Maximal degree in co-relation 191951. Up to 31718 conditions per place. [2023-08-29 03:26:53,513 INFO L137 encePairwiseOnDemand]: 2404/2410 looper letters, 693 selfloop transitions, 5 changer transitions 0/771 dead transitions. [2023-08-29 03:26:53,514 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 771 transitions, 3394 flow [2023-08-29 03:26:53,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-29 03:26:53,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-29 03:26:53,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8391 transitions. [2023-08-29 03:26:53,524 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4973918197984588 [2023-08-29 03:26:53,525 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 8391 transitions. [2023-08-29 03:26:53,525 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 8391 transitions. [2023-08-29 03:26:53,526 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:26:53,526 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 8391 transitions. [2023-08-29 03:26:53,534 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 1198.7142857142858) internal successors, (8391), 7 states have internal predecessors, (8391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:53,544 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 2410.0) internal successors, (19280), 8 states have internal predecessors, (19280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:53,547 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 2410.0) internal successors, (19280), 8 states have internal predecessors, (19280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:53,547 INFO L175 Difference]: Start difference. First operand has 201 places, 232 transitions, 628 flow. Second operand 7 states and 8391 transitions. [2023-08-29 03:26:53,547 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 771 transitions, 3394 flow [2023-08-29 03:26:53,554 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 771 transitions, 3378 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-08-29 03:26:53,558 INFO L231 Difference]: Finished difference. Result has 205 places, 231 transitions, 620 flow [2023-08-29 03:26:53,558 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2410, PETRI_DIFFERENCE_MINUEND_FLOW=610, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=231, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=620, PETRI_PLACES=205, PETRI_TRANSITIONS=231} [2023-08-29 03:26:53,559 INFO L281 CegarLoopForPetriNet]: 303 programPoint places, -98 predicate places. [2023-08-29 03:26:53,559 INFO L495 AbstractCegarLoop]: Abstraction has has 205 places, 231 transitions, 620 flow [2023-08-29 03:26:53,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1111.857142857143) internal successors, (7783), 7 states have internal predecessors, (7783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:53,561 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:26:53,561 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:26:53,569 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-29 03:26:53,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-08-29 03:26:53,766 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err63ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 284 more)] === [2023-08-29 03:26:53,766 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:26:53,767 INFO L85 PathProgramCache]: Analyzing trace with hash 527457553, now seen corresponding path program 1 times [2023-08-29 03:26:53,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:26:53,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789769366] [2023-08-29 03:26:53,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:26:53,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:26:53,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:26:53,813 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-29 03:26:53,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:26:53,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789769366] [2023-08-29 03:26:53,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789769366] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:26:53,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:26:53,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 03:26:53,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234729227] [2023-08-29 03:26:53,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:26:53,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:26:53,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:26:53,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:26:53,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:26:53,831 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1119 out of 2410 [2023-08-29 03:26:53,832 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 231 transitions, 620 flow. Second operand has 3 states, 3 states have (on average 1123.3333333333333) internal successors, (3370), 3 states have internal predecessors, (3370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:53,833 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:26:53,833 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1119 of 2410 [2023-08-29 03:26:53,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:26:56,945 INFO L130 PetriNetUnfolder]: 20524/39267 cut-off events. [2023-08-29 03:26:56,946 INFO L131 PetriNetUnfolder]: For 7116/7143 co-relation queries the response was YES. [2023-08-29 03:26:57,106 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79250 conditions, 39267 events. 20524/39267 cut-off events. For 7116/7143 co-relation queries the response was YES. Maximal size of possible extension queue 834. Compared 343019 event pairs, 12079 based on Foata normal form. 172/34153 useless extension candidates. Maximal degree in co-relation 79237. Up to 25569 conditions per place. [2023-08-29 03:26:57,214 INFO L137 encePairwiseOnDemand]: 2405/2410 looper letters, 233 selfloop transitions, 3 changer transitions 0/313 dead transitions. [2023-08-29 03:26:57,214 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 313 transitions, 1293 flow [2023-08-29 03:26:57,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:26:57,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:26:57,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3568 transitions. [2023-08-29 03:26:57,219 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4934993084370678 [2023-08-29 03:26:57,219 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3568 transitions. [2023-08-29 03:26:57,219 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3568 transitions. [2023-08-29 03:26:57,220 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:26:57,220 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3568 transitions. [2023-08-29 03:26:57,223 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1189.3333333333333) internal successors, (3568), 3 states have internal predecessors, (3568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:57,227 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2410.0) internal successors, (9640), 4 states have internal predecessors, (9640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:57,227 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2410.0) internal successors, (9640), 4 states have internal predecessors, (9640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:57,228 INFO L175 Difference]: Start difference. First operand has 205 places, 231 transitions, 620 flow. Second operand 3 states and 3568 transitions. [2023-08-29 03:26:57,228 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 313 transitions, 1293 flow [2023-08-29 03:26:57,241 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 313 transitions, 1282 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-29 03:26:57,243 INFO L231 Difference]: Finished difference. Result has 204 places, 233 transitions, 637 flow [2023-08-29 03:26:57,243 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2410, PETRI_DIFFERENCE_MINUEND_FLOW=611, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=231, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=228, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=637, PETRI_PLACES=204, PETRI_TRANSITIONS=233} [2023-08-29 03:26:57,244 INFO L281 CegarLoopForPetriNet]: 303 programPoint places, -99 predicate places. [2023-08-29 03:26:57,244 INFO L495 AbstractCegarLoop]: Abstraction has has 204 places, 233 transitions, 637 flow [2023-08-29 03:26:57,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1123.3333333333333) internal successors, (3370), 3 states have internal predecessors, (3370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:57,245 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:26:57,245 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:26:57,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-29 03:26:57,245 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err65ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 284 more)] === [2023-08-29 03:26:57,245 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:26:57,245 INFO L85 PathProgramCache]: Analyzing trace with hash 2134504388, now seen corresponding path program 1 times [2023-08-29 03:26:57,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:26:57,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399208155] [2023-08-29 03:26:57,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:26:57,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:26:57,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:26:57,276 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-29 03:26:57,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:26:57,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399208155] [2023-08-29 03:26:57,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399208155] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:26:57,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:26:57,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 03:26:57,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693343003] [2023-08-29 03:26:57,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:26:57,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:26:57,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:26:57,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:26:57,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:26:57,286 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1114 out of 2410 [2023-08-29 03:26:57,288 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 233 transitions, 637 flow. Second operand has 3 states, 3 states have (on average 1118.3333333333333) internal successors, (3355), 3 states have internal predecessors, (3355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:57,288 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:26:57,288 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1114 of 2410 [2023-08-29 03:26:57,288 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:27:00,244 INFO L130 PetriNetUnfolder]: 21168/40624 cut-off events. [2023-08-29 03:27:00,246 INFO L131 PetriNetUnfolder]: For 4738/4912 co-relation queries the response was YES. [2023-08-29 03:27:00,435 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78425 conditions, 40624 events. 21168/40624 cut-off events. For 4738/4912 co-relation queries the response was YES. Maximal size of possible extension queue 872. Compared 356595 event pairs, 13452 based on Foata normal form. 1/35702 useless extension candidates. Maximal degree in co-relation 78411. Up to 28426 conditions per place. [2023-08-29 03:27:00,590 INFO L137 encePairwiseOnDemand]: 2406/2410 looper letters, 224 selfloop transitions, 3 changer transitions 0/304 dead transitions. [2023-08-29 03:27:00,590 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 304 transitions, 1283 flow [2023-08-29 03:27:00,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:27:00,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:27:00,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3540 transitions. [2023-08-29 03:27:00,610 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4896265560165975 [2023-08-29 03:27:00,610 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3540 transitions. [2023-08-29 03:27:00,611 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3540 transitions. [2023-08-29 03:27:00,612 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:27:00,612 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3540 transitions. [2023-08-29 03:27:00,616 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1180.0) internal successors, (3540), 3 states have internal predecessors, (3540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:00,639 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2410.0) internal successors, (9640), 4 states have internal predecessors, (9640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:00,640 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2410.0) internal successors, (9640), 4 states have internal predecessors, (9640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:00,644 INFO L175 Difference]: Start difference. First operand has 204 places, 233 transitions, 637 flow. Second operand 3 states and 3540 transitions. [2023-08-29 03:27:00,645 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 304 transitions, 1283 flow [2023-08-29 03:27:00,657 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 304 transitions, 1277 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 03:27:00,659 INFO L231 Difference]: Finished difference. Result has 207 places, 235 transitions, 656 flow [2023-08-29 03:27:00,660 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2410, PETRI_DIFFERENCE_MINUEND_FLOW=634, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=230, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=656, PETRI_PLACES=207, PETRI_TRANSITIONS=235} [2023-08-29 03:27:00,660 INFO L281 CegarLoopForPetriNet]: 303 programPoint places, -96 predicate places. [2023-08-29 03:27:00,660 INFO L495 AbstractCegarLoop]: Abstraction has has 207 places, 235 transitions, 656 flow [2023-08-29 03:27:00,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1118.3333333333333) internal successors, (3355), 3 states have internal predecessors, (3355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:00,661 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:27:00,661 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:27:00,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-29 03:27:00,662 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err53ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 284 more)] === [2023-08-29 03:27:00,662 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:27:00,662 INFO L85 PathProgramCache]: Analyzing trace with hash -211890260, now seen corresponding path program 1 times [2023-08-29 03:27:00,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:27:00,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570296452] [2023-08-29 03:27:00,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:27:00,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:27:00,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:27:00,708 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-29 03:27:00,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:27:00,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570296452] [2023-08-29 03:27:00,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570296452] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:27:00,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:27:00,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 03:27:00,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201601407] [2023-08-29 03:27:00,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:27:00,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:27:00,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:27:00,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:27:00,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:27:00,760 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1117 out of 2410 [2023-08-29 03:27:00,762 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 235 transitions, 656 flow. Second operand has 3 states, 3 states have (on average 1121.3333333333333) internal successors, (3364), 3 states have internal predecessors, (3364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:00,762 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:27:00,763 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1117 of 2410 [2023-08-29 03:27:00,763 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:27:05,638 INFO L130 PetriNetUnfolder]: 34271/63146 cut-off events. [2023-08-29 03:27:05,638 INFO L131 PetriNetUnfolder]: For 7489/7645 co-relation queries the response was YES. [2023-08-29 03:27:05,905 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125765 conditions, 63146 events. 34271/63146 cut-off events. For 7489/7645 co-relation queries the response was YES. Maximal size of possible extension queue 1076. Compared 553782 event pairs, 15870 based on Foata normal form. 0/56200 useless extension candidates. Maximal degree in co-relation 125750. Up to 31586 conditions per place. [2023-08-29 03:27:06,105 INFO L137 encePairwiseOnDemand]: 2407/2410 looper letters, 264 selfloop transitions, 2 changer transitions 0/343 dead transitions. [2023-08-29 03:27:06,106 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 343 transitions, 1460 flow [2023-08-29 03:27:06,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:27:06,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:27:06,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3585 transitions. [2023-08-29 03:27:06,112 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.495850622406639 [2023-08-29 03:27:06,112 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3585 transitions. [2023-08-29 03:27:06,112 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3585 transitions. [2023-08-29 03:27:06,113 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:27:06,113 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3585 transitions. [2023-08-29 03:27:06,116 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1195.0) internal successors, (3585), 3 states have internal predecessors, (3585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:06,120 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2410.0) internal successors, (9640), 4 states have internal predecessors, (9640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:06,121 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2410.0) internal successors, (9640), 4 states have internal predecessors, (9640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:06,121 INFO L175 Difference]: Start difference. First operand has 207 places, 235 transitions, 656 flow. Second operand 3 states and 3585 transitions. [2023-08-29 03:27:06,121 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 343 transitions, 1460 flow [2023-08-29 03:27:06,137 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 343 transitions, 1454 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 03:27:06,140 INFO L231 Difference]: Finished difference. Result has 208 places, 236 transitions, 662 flow [2023-08-29 03:27:06,140 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2410, PETRI_DIFFERENCE_MINUEND_FLOW=650, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=235, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=662, PETRI_PLACES=208, PETRI_TRANSITIONS=236} [2023-08-29 03:27:06,141 INFO L281 CegarLoopForPetriNet]: 303 programPoint places, -95 predicate places. [2023-08-29 03:27:06,141 INFO L495 AbstractCegarLoop]: Abstraction has has 208 places, 236 transitions, 662 flow [2023-08-29 03:27:06,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1121.3333333333333) internal successors, (3364), 3 states have internal predecessors, (3364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:06,141 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:27:06,141 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:27:06,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-29 03:27:06,142 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 284 more)] === [2023-08-29 03:27:06,142 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:27:06,142 INFO L85 PathProgramCache]: Analyzing trace with hash -211891073, now seen corresponding path program 1 times [2023-08-29 03:27:06,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:27:06,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885121756] [2023-08-29 03:27:06,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:27:06,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:27:06,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:27:06,189 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-29 03:27:06,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:27:06,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885121756] [2023-08-29 03:27:06,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885121756] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:27:06,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:27:06,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:27:06,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813289466] [2023-08-29 03:27:06,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:27:06,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:27:06,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:27:06,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:27:06,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:27:06,211 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1096 out of 2410 [2023-08-29 03:27:06,213 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 236 transitions, 662 flow. Second operand has 3 states, 3 states have (on average 1100.6666666666667) internal successors, (3302), 3 states have internal predecessors, (3302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:06,213 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:27:06,213 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1096 of 2410 [2023-08-29 03:27:06,213 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:27:11,336 INFO L130 PetriNetUnfolder]: 37872/68266 cut-off events. [2023-08-29 03:27:11,337 INFO L131 PetriNetUnfolder]: For 8526/8682 co-relation queries the response was YES. [2023-08-29 03:27:11,585 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138011 conditions, 68266 events. 37872/68266 cut-off events. For 8526/8682 co-relation queries the response was YES. Maximal size of possible extension queue 1122. Compared 589060 event pairs, 7211 based on Foata normal form. 0/60705 useless extension candidates. Maximal degree in co-relation 137995. Up to 48699 conditions per place. [2023-08-29 03:27:11,758 INFO L137 encePairwiseOnDemand]: 2397/2410 looper letters, 239 selfloop transitions, 5 changer transitions 0/312 dead transitions. [2023-08-29 03:27:11,759 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 312 transitions, 1369 flow [2023-08-29 03:27:11,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:27:11,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:27:11,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3507 transitions. [2023-08-29 03:27:11,763 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4850622406639004 [2023-08-29 03:27:11,763 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3507 transitions. [2023-08-29 03:27:11,763 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3507 transitions. [2023-08-29 03:27:11,764 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:27:11,764 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3507 transitions. [2023-08-29 03:27:11,767 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1169.0) internal successors, (3507), 3 states have internal predecessors, (3507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:11,770 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2410.0) internal successors, (9640), 4 states have internal predecessors, (9640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:11,771 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2410.0) internal successors, (9640), 4 states have internal predecessors, (9640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:11,771 INFO L175 Difference]: Start difference. First operand has 208 places, 236 transitions, 662 flow. Second operand 3 states and 3507 transitions. [2023-08-29 03:27:11,771 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 312 transitions, 1369 flow [2023-08-29 03:27:11,784 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 312 transitions, 1366 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 03:27:11,786 INFO L231 Difference]: Finished difference. Result has 202 places, 233 transitions, 679 flow [2023-08-29 03:27:11,787 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2410, PETRI_DIFFERENCE_MINUEND_FLOW=644, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=679, PETRI_PLACES=202, PETRI_TRANSITIONS=233} [2023-08-29 03:27:11,787 INFO L281 CegarLoopForPetriNet]: 303 programPoint places, -101 predicate places. [2023-08-29 03:27:11,787 INFO L495 AbstractCegarLoop]: Abstraction has has 202 places, 233 transitions, 679 flow [2023-08-29 03:27:11,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1100.6666666666667) internal successors, (3302), 3 states have internal predecessors, (3302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:11,789 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:27:11,789 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:27:11,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-29 03:27:11,790 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 284 more)] === [2023-08-29 03:27:11,790 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:27:11,790 INFO L85 PathProgramCache]: Analyzing trace with hash 1443662394, now seen corresponding path program 1 times [2023-08-29 03:27:11,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:27:11,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218521477] [2023-08-29 03:27:11,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:27:11,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:27:11,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:27:11,850 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-29 03:27:11,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:27:11,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218521477] [2023-08-29 03:27:11,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218521477] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:27:11,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:27:11,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:27:11,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431176417] [2023-08-29 03:27:11,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:27:11,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:27:11,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:27:11,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:27:11,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:27:11,980 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1101 out of 2410 [2023-08-29 03:27:11,982 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 233 transitions, 679 flow. Second operand has 3 states, 3 states have (on average 1106.0) internal successors, (3318), 3 states have internal predecessors, (3318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:11,982 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:27:11,982 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1101 of 2410 [2023-08-29 03:27:11,982 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:27:17,934 INFO L130 PetriNetUnfolder]: 40762/71956 cut-off events. [2023-08-29 03:27:17,934 INFO L131 PetriNetUnfolder]: For 8929/9085 co-relation queries the response was YES. [2023-08-29 03:27:18,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 149145 conditions, 71956 events. 40762/71956 cut-off events. For 8929/9085 co-relation queries the response was YES. Maximal size of possible extension queue 1093. Compared 605738 event pairs, 13632 based on Foata normal form. 0/65335 useless extension candidates. Maximal degree in co-relation 149129. Up to 32704 conditions per place. [2023-08-29 03:27:18,529 INFO L137 encePairwiseOnDemand]: 2404/2410 looper letters, 234 selfloop transitions, 3 changer transitions 0/297 dead transitions. [2023-08-29 03:27:18,529 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 297 transitions, 1323 flow [2023-08-29 03:27:18,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:27:18,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:27:18,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3508 transitions. [2023-08-29 03:27:18,561 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4852005532503458 [2023-08-29 03:27:18,561 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3508 transitions. [2023-08-29 03:27:18,562 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3508 transitions. [2023-08-29 03:27:18,562 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:27:18,562 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3508 transitions. [2023-08-29 03:27:18,565 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1169.3333333333333) internal successors, (3508), 3 states have internal predecessors, (3508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:18,569 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2410.0) internal successors, (9640), 4 states have internal predecessors, (9640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:18,569 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2410.0) internal successors, (9640), 4 states have internal predecessors, (9640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:18,570 INFO L175 Difference]: Start difference. First operand has 202 places, 233 transitions, 679 flow. Second operand 3 states and 3508 transitions. [2023-08-29 03:27:18,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 297 transitions, 1323 flow [2023-08-29 03:27:18,584 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 297 transitions, 1323 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:27:18,587 INFO L231 Difference]: Finished difference. Result has 200 places, 229 transitions, 677 flow [2023-08-29 03:27:18,587 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2410, PETRI_DIFFERENCE_MINUEND_FLOW=671, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=677, PETRI_PLACES=200, PETRI_TRANSITIONS=229} [2023-08-29 03:27:18,588 INFO L281 CegarLoopForPetriNet]: 303 programPoint places, -103 predicate places. [2023-08-29 03:27:18,588 INFO L495 AbstractCegarLoop]: Abstraction has has 200 places, 229 transitions, 677 flow [2023-08-29 03:27:18,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1106.0) internal successors, (3318), 3 states have internal predecessors, (3318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:18,589 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:27:18,589 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:27:18,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-29 03:27:18,589 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err63ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 284 more)] === [2023-08-29 03:27:18,590 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:27:18,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1228747375, now seen corresponding path program 1 times [2023-08-29 03:27:18,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:27:18,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684232296] [2023-08-29 03:27:18,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:27:18,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:27:18,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:27:18,621 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-29 03:27:18,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:27:18,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684232296] [2023-08-29 03:27:18,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684232296] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:27:18,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:27:18,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:27:18,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030975371] [2023-08-29 03:27:18,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:27:18,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:27:18,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:27:18,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:27:18,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:27:18,631 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1114 out of 2410 [2023-08-29 03:27:18,633 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 229 transitions, 677 flow. Second operand has 3 states, 3 states have (on average 1119.0) internal successors, (3357), 3 states have internal predecessors, (3357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:18,633 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:27:18,633 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1114 of 2410 [2023-08-29 03:27:18,633 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:27:25,283 INFO L130 PetriNetUnfolder]: 40982/75959 cut-off events. [2023-08-29 03:27:25,283 INFO L131 PetriNetUnfolder]: For 10202/10380 co-relation queries the response was YES. [2023-08-29 03:27:25,637 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155161 conditions, 75959 events. 40982/75959 cut-off events. For 10202/10380 co-relation queries the response was YES. Maximal size of possible extension queue 1297. Compared 695638 event pairs, 26260 based on Foata normal form. 0/69251 useless extension candidates. Maximal degree in co-relation 155144. Up to 54402 conditions per place. [2023-08-29 03:27:25,859 INFO L137 encePairwiseOnDemand]: 2406/2410 looper letters, 306 selfloop transitions, 2 changer transitions 0/369 dead transitions. [2023-08-29 03:27:25,859 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 369 transitions, 1695 flow [2023-08-29 03:27:25,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:27:25,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:27:25,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3603 transitions. [2023-08-29 03:27:25,865 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4983402489626556 [2023-08-29 03:27:25,865 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3603 transitions. [2023-08-29 03:27:25,865 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3603 transitions. [2023-08-29 03:27:25,881 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:27:25,881 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3603 transitions. [2023-08-29 03:27:25,886 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1201.0) internal successors, (3603), 3 states have internal predecessors, (3603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:25,890 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2410.0) internal successors, (9640), 4 states have internal predecessors, (9640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:25,891 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2410.0) internal successors, (9640), 4 states have internal predecessors, (9640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:25,891 INFO L175 Difference]: Start difference. First operand has 200 places, 229 transitions, 677 flow. Second operand 3 states and 3603 transitions. [2023-08-29 03:27:25,891 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 369 transitions, 1695 flow [2023-08-29 03:27:25,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 369 transitions, 1685 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 03:27:25,911 INFO L231 Difference]: Finished difference. Result has 199 places, 229 transitions, 681 flow [2023-08-29 03:27:25,912 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2410, PETRI_DIFFERENCE_MINUEND_FLOW=667, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=225, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=681, PETRI_PLACES=199, PETRI_TRANSITIONS=229} [2023-08-29 03:27:25,912 INFO L281 CegarLoopForPetriNet]: 303 programPoint places, -104 predicate places. [2023-08-29 03:27:25,912 INFO L495 AbstractCegarLoop]: Abstraction has has 199 places, 229 transitions, 681 flow [2023-08-29 03:27:25,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1119.0) internal successors, (3357), 3 states have internal predecessors, (3357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:25,913 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:27:25,913 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:27:25,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-29 03:27:25,913 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err65ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 284 more)] === [2023-08-29 03:27:25,914 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:27:25,914 INFO L85 PathProgramCache]: Analyzing trace with hash 1667790885, now seen corresponding path program 1 times [2023-08-29 03:27:25,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:27:25,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687062821] [2023-08-29 03:27:25,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:27:25,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:27:25,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:27:25,947 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-29 03:27:25,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:27:25,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687062821] [2023-08-29 03:27:25,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687062821] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:27:25,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:27:25,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 03:27:25,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605978160] [2023-08-29 03:27:25,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:27:25,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:27:25,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:27:25,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:27:25,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:27:25,963 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1119 out of 2410 [2023-08-29 03:27:25,964 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 229 transitions, 681 flow. Second operand has 3 states, 3 states have (on average 1123.6666666666667) internal successors, (3371), 3 states have internal predecessors, (3371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:25,965 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:27:25,965 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1119 of 2410 [2023-08-29 03:27:25,965 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:27:32,712 INFO L130 PetriNetUnfolder]: 43369/80498 cut-off events. [2023-08-29 03:27:32,713 INFO L131 PetriNetUnfolder]: For 10702/10883 co-relation queries the response was YES. [2023-08-29 03:27:33,194 INFO L83 FinitePrefix]: Finished finitePrefix Result has 166345 conditions, 80498 events. 43369/80498 cut-off events. For 10702/10883 co-relation queries the response was YES. Maximal size of possible extension queue 1465. Compared 752456 event pairs, 28806 based on Foata normal form. 286/73926 useless extension candidates. Maximal degree in co-relation 166328. Up to 58534 conditions per place. [2023-08-29 03:27:33,459 INFO L137 encePairwiseOnDemand]: 2404/2410 looper letters, 241 selfloop transitions, 3 changer transitions 0/308 dead transitions. [2023-08-29 03:27:33,459 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 308 transitions, 1398 flow [2023-08-29 03:27:33,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:27:33,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:27:33,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3562 transitions. [2023-08-29 03:27:33,464 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4926694329183956 [2023-08-29 03:27:33,464 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3562 transitions. [2023-08-29 03:27:33,465 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3562 transitions. [2023-08-29 03:27:33,465 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:27:33,465 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3562 transitions. [2023-08-29 03:27:33,469 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1187.3333333333333) internal successors, (3562), 3 states have internal predecessors, (3562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:33,474 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2410.0) internal successors, (9640), 4 states have internal predecessors, (9640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:33,474 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2410.0) internal successors, (9640), 4 states have internal predecessors, (9640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:33,474 INFO L175 Difference]: Start difference. First operand has 199 places, 229 transitions, 681 flow. Second operand 3 states and 3562 transitions. [2023-08-29 03:27:33,475 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 308 transitions, 1398 flow [2023-08-29 03:27:33,551 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 308 transitions, 1398 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:27:33,553 INFO L231 Difference]: Finished difference. Result has 203 places, 230 transitions, 704 flow [2023-08-29 03:27:33,554 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2410, PETRI_DIFFERENCE_MINUEND_FLOW=676, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=225, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=704, PETRI_PLACES=203, PETRI_TRANSITIONS=230} [2023-08-29 03:27:33,554 INFO L281 CegarLoopForPetriNet]: 303 programPoint places, -100 predicate places. [2023-08-29 03:27:33,555 INFO L495 AbstractCegarLoop]: Abstraction has has 203 places, 230 transitions, 704 flow [2023-08-29 03:27:33,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1123.6666666666667) internal successors, (3371), 3 states have internal predecessors, (3371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:33,555 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:27:33,556 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:27:33,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-29 03:27:33,556 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 284 more)] === [2023-08-29 03:27:33,556 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:27:33,556 INFO L85 PathProgramCache]: Analyzing trace with hash -1762978895, now seen corresponding path program 1 times [2023-08-29 03:27:33,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:27:33,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907189944] [2023-08-29 03:27:33,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:27:33,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:27:33,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:27:33,631 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-29 03:27:33,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:27:33,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907189944] [2023-08-29 03:27:33,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907189944] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:27:33,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:27:33,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:27:33,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233612873] [2023-08-29 03:27:33,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:27:33,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:27:33,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:27:33,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:27:33,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:27:33,747 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1101 out of 2410 [2023-08-29 03:27:33,749 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 230 transitions, 704 flow. Second operand has 3 states, 3 states have (on average 1106.3333333333333) internal successors, (3319), 3 states have internal predecessors, (3319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:33,749 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:27:33,749 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1101 of 2410 [2023-08-29 03:27:33,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:27:40,418 INFO L130 PetriNetUnfolder]: 44134/78317 cut-off events. [2023-08-29 03:27:40,418 INFO L131 PetriNetUnfolder]: For 14979/15160 co-relation queries the response was YES. [2023-08-29 03:27:40,838 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168027 conditions, 78317 events. 44134/78317 cut-off events. For 14979/15160 co-relation queries the response was YES. Maximal size of possible extension queue 1360. Compared 693925 event pairs, 14668 based on Foata normal form. 0/71764 useless extension candidates. Maximal degree in co-relation 168008. Up to 38678 conditions per place. [2023-08-29 03:27:41,055 INFO L137 encePairwiseOnDemand]: 2404/2410 looper letters, 231 selfloop transitions, 3 changer transitions 0/293 dead transitions. [2023-08-29 03:27:41,056 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 293 transitions, 1352 flow [2023-08-29 03:27:41,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:27:41,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:27:41,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3503 transitions. [2023-08-29 03:27:41,200 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48450899031811895 [2023-08-29 03:27:41,200 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3503 transitions. [2023-08-29 03:27:41,200 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3503 transitions. [2023-08-29 03:27:41,201 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:27:41,201 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3503 transitions. [2023-08-29 03:27:41,204 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1167.6666666666667) internal successors, (3503), 3 states have internal predecessors, (3503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:41,207 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2410.0) internal successors, (9640), 4 states have internal predecessors, (9640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:41,207 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2410.0) internal successors, (9640), 4 states have internal predecessors, (9640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:41,207 INFO L175 Difference]: Start difference. First operand has 203 places, 230 transitions, 704 flow. Second operand 3 states and 3503 transitions. [2023-08-29 03:27:41,207 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 293 transitions, 1352 flow [2023-08-29 03:27:41,265 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 293 transitions, 1349 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 03:27:41,267 INFO L231 Difference]: Finished difference. Result has 200 places, 226 transitions, 699 flow [2023-08-29 03:27:41,267 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2410, PETRI_DIFFERENCE_MINUEND_FLOW=693, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=699, PETRI_PLACES=200, PETRI_TRANSITIONS=226} [2023-08-29 03:27:41,272 INFO L281 CegarLoopForPetriNet]: 303 programPoint places, -103 predicate places. [2023-08-29 03:27:41,273 INFO L495 AbstractCegarLoop]: Abstraction has has 200 places, 226 transitions, 699 flow [2023-08-29 03:27:41,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1106.3333333333333) internal successors, (3319), 3 states have internal predecessors, (3319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:41,273 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:27:41,273 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:27:41,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-29 03:27:41,274 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread1Err64ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 284 more)] === [2023-08-29 03:27:41,276 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:27:41,276 INFO L85 PathProgramCache]: Analyzing trace with hash 289866646, now seen corresponding path program 1 times [2023-08-29 03:27:41,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:27:41,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296653990] [2023-08-29 03:27:41,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:27:41,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:27:41,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:27:41,363 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-29 03:27:41,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:27:41,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296653990] [2023-08-29 03:27:41,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296653990] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:27:41,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:27:41,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:27:41,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782073335] [2023-08-29 03:27:41,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:27:41,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:27:41,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:27:41,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:27:41,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:27:41,372 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1114 out of 2410 [2023-08-29 03:27:41,373 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 226 transitions, 699 flow. Second operand has 3 states, 3 states have (on average 1119.3333333333333) internal successors, (3358), 3 states have internal predecessors, (3358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:41,373 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:27:41,373 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1114 of 2410 [2023-08-29 03:27:41,373 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:27:48,907 INFO L130 PetriNetUnfolder]: 45149/82036 cut-off events. [2023-08-29 03:27:48,908 INFO L131 PetriNetUnfolder]: For 14490/14671 co-relation queries the response was YES. [2023-08-29 03:27:49,414 INFO L83 FinitePrefix]: Finished finitePrefix Result has 175143 conditions, 82036 events. 45149/82036 cut-off events. For 14490/14671 co-relation queries the response was YES. Maximal size of possible extension queue 1389. Compared 745291 event pairs, 28810 based on Foata normal form. 0/75543 useless extension candidates. Maximal degree in co-relation 175124. Up to 58816 conditions per place. [2023-08-29 03:27:49,656 INFO L137 encePairwiseOnDemand]: 2406/2410 looper letters, 308 selfloop transitions, 2 changer transitions 0/366 dead transitions. [2023-08-29 03:27:49,656 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 366 transitions, 1741 flow [2023-08-29 03:27:49,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:27:49,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:27:49,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3603 transitions. [2023-08-29 03:27:49,659 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4983402489626556 [2023-08-29 03:27:49,659 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3603 transitions. [2023-08-29 03:27:49,660 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3603 transitions. [2023-08-29 03:27:49,660 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:27:49,660 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3603 transitions. [2023-08-29 03:27:49,662 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1201.0) internal successors, (3603), 3 states have internal predecessors, (3603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:49,666 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2410.0) internal successors, (9640), 4 states have internal predecessors, (9640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:49,667 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2410.0) internal successors, (9640), 4 states have internal predecessors, (9640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:49,667 INFO L175 Difference]: Start difference. First operand has 200 places, 226 transitions, 699 flow. Second operand 3 states and 3603 transitions. [2023-08-29 03:27:49,667 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 366 transitions, 1741 flow [2023-08-29 03:27:49,702 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 366 transitions, 1729 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 03:27:49,704 INFO L231 Difference]: Finished difference. Result has 199 places, 226 transitions, 703 flow [2023-08-29 03:27:49,705 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2410, PETRI_DIFFERENCE_MINUEND_FLOW=689, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=222, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=703, PETRI_PLACES=199, PETRI_TRANSITIONS=226} [2023-08-29 03:27:49,705 INFO L281 CegarLoopForPetriNet]: 303 programPoint places, -104 predicate places. [2023-08-29 03:27:49,705 INFO L495 AbstractCegarLoop]: Abstraction has has 199 places, 226 transitions, 703 flow [2023-08-29 03:27:49,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1119.3333333333333) internal successors, (3358), 3 states have internal predecessors, (3358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:49,706 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:27:49,706 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:27:49,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-29 03:27:49,706 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread2Err65ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 284 more)] === [2023-08-29 03:27:49,706 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:27:49,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1527059239, now seen corresponding path program 1 times [2023-08-29 03:27:49,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:27:49,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797500311] [2023-08-29 03:27:49,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:27:49,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:27:49,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:27:49,736 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-29 03:27:49,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:27:49,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797500311] [2023-08-29 03:27:49,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797500311] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:27:49,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:27:49,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:27:49,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884140916] [2023-08-29 03:27:49,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:27:49,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:27:49,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:27:49,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:27:49,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:27:49,779 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1105 out of 2410 [2023-08-29 03:27:49,781 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 226 transitions, 703 flow. Second operand has 3 states, 3 states have (on average 1110.3333333333333) internal successors, (3331), 3 states have internal predecessors, (3331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:49,781 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:27:49,781 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1105 of 2410 [2023-08-29 03:27:49,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:27:56,105 INFO L130 PetriNetUnfolder]: 43407/77968 cut-off events. [2023-08-29 03:27:56,105 INFO L131 PetriNetUnfolder]: For 13030/13215 co-relation queries the response was YES. [2023-08-29 03:27:56,547 INFO L83 FinitePrefix]: Finished finitePrefix Result has 167429 conditions, 77968 events. 43407/77968 cut-off events. For 13030/13215 co-relation queries the response was YES. Maximal size of possible extension queue 1374. Compared 694895 event pairs, 31091 based on Foata normal form. 1274/73554 useless extension candidates. Maximal degree in co-relation 167410. Up to 63331 conditions per place. [2023-08-29 03:27:56,912 INFO L137 encePairwiseOnDemand]: 2405/2410 looper letters, 234 selfloop transitions, 5 changer transitions 0/297 dead transitions. [2023-08-29 03:27:56,913 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 297 transitions, 1391 flow [2023-08-29 03:27:56,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:27:56,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:27:56,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3511 transitions. [2023-08-29 03:27:56,916 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4856154910096819 [2023-08-29 03:27:56,916 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3511 transitions. [2023-08-29 03:27:56,916 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3511 transitions. [2023-08-29 03:27:56,916 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:27:56,916 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3511 transitions. [2023-08-29 03:27:56,919 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1170.3333333333333) internal successors, (3511), 3 states have internal predecessors, (3511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:56,941 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2410.0) internal successors, (9640), 4 states have internal predecessors, (9640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:56,941 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2410.0) internal successors, (9640), 4 states have internal predecessors, (9640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:56,942 INFO L175 Difference]: Start difference. First operand has 199 places, 226 transitions, 703 flow. Second operand 3 states and 3511 transitions. [2023-08-29 03:27:56,942 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 297 transitions, 1391 flow [2023-08-29 03:27:56,992 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 297 transitions, 1391 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:27:56,997 INFO L231 Difference]: Finished difference. Result has 200 places, 225 transitions, 711 flow [2023-08-29 03:27:56,997 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2410, PETRI_DIFFERENCE_MINUEND_FLOW=701, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=220, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=711, PETRI_PLACES=200, PETRI_TRANSITIONS=225} [2023-08-29 03:27:56,997 INFO L281 CegarLoopForPetriNet]: 303 programPoint places, -103 predicate places. [2023-08-29 03:27:56,997 INFO L495 AbstractCegarLoop]: Abstraction has has 200 places, 225 transitions, 711 flow [2023-08-29 03:27:56,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1110.3333333333333) internal successors, (3331), 3 states have internal predecessors, (3331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:56,998 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:27:56,998 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:27:56,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-29 03:27:56,998 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread1Err11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 284 more)] === [2023-08-29 03:27:56,999 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:27:56,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1427134266, now seen corresponding path program 1 times [2023-08-29 03:27:56,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:27:56,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726255802] [2023-08-29 03:27:56,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:27:57,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:27:57,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:27:57,080 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-29 03:27:57,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:27:57,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726255802] [2023-08-29 03:27:57,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726255802] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:27:57,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:27:57,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:27:57,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149216487] [2023-08-29 03:27:57,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:27:57,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:27:57,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:27:57,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:27:57,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:27:57,187 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1101 out of 2410 [2023-08-29 03:27:57,189 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 225 transitions, 711 flow. Second operand has 3 states, 3 states have (on average 1107.0) internal successors, (3321), 3 states have internal predecessors, (3321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:57,189 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:27:57,189 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1101 of 2410 [2023-08-29 03:27:57,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:28:05,680 INFO L130 PetriNetUnfolder]: 59378/102794 cut-off events. [2023-08-29 03:28:05,680 INFO L131 PetriNetUnfolder]: For 21070/21255 co-relation queries the response was YES. [2023-08-29 03:28:06,309 INFO L83 FinitePrefix]: Finished finitePrefix Result has 224682 conditions, 102794 events. 59378/102794 cut-off events. For 21070/21255 co-relation queries the response was YES. Maximal size of possible extension queue 1585. Compared 896245 event pairs, 31634 based on Foata normal form. 0/95627 useless extension candidates. Maximal degree in co-relation 224662. Up to 63182 conditions per place. [2023-08-29 03:28:06,639 INFO L137 encePairwiseOnDemand]: 2401/2410 looper letters, 261 selfloop transitions, 6 changer transitions 0/317 dead transitions. [2023-08-29 03:28:06,639 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 317 transitions, 1510 flow [2023-08-29 03:28:06,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:28:06,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:28:06,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3533 transitions. [2023-08-29 03:28:06,642 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48865836791147993 [2023-08-29 03:28:06,642 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3533 transitions. [2023-08-29 03:28:06,642 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3533 transitions. [2023-08-29 03:28:06,643 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:28:06,643 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3533 transitions. [2023-08-29 03:28:06,645 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1177.6666666666667) internal successors, (3533), 3 states have internal predecessors, (3533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:28:06,648 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2410.0) internal successors, (9640), 4 states have internal predecessors, (9640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:28:06,648 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2410.0) internal successors, (9640), 4 states have internal predecessors, (9640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:28:06,648 INFO L175 Difference]: Start difference. First operand has 200 places, 225 transitions, 711 flow. Second operand 3 states and 3533 transitions. [2023-08-29 03:28:06,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 317 transitions, 1510 flow [2023-08-29 03:28:06,813 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 317 transitions, 1490 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 03:28:06,816 INFO L231 Difference]: Finished difference. Result has 198 places, 226 transitions, 741 flow [2023-08-29 03:28:06,816 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2410, PETRI_DIFFERENCE_MINUEND_FLOW=693, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=221, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=741, PETRI_PLACES=198, PETRI_TRANSITIONS=226} [2023-08-29 03:28:06,817 INFO L281 CegarLoopForPetriNet]: 303 programPoint places, -105 predicate places. [2023-08-29 03:28:06,817 INFO L495 AbstractCegarLoop]: Abstraction has has 198 places, 226 transitions, 741 flow [2023-08-29 03:28:06,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1107.0) internal successors, (3321), 3 states have internal predecessors, (3321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:28:06,818 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:28:06,818 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:28:06,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-29 03:28:06,818 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting thread2Err11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 284 more)] === [2023-08-29 03:28:06,818 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:28:06,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1181653455, now seen corresponding path program 1 times [2023-08-29 03:28:06,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:28:06,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943446163] [2023-08-29 03:28:06,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:28:06,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:28:06,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:28:06,887 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-29 03:28:06,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:28:06,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943446163] [2023-08-29 03:28:06,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943446163] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:28:06,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:28:06,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:28:06,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442242102] [2023-08-29 03:28:06,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:28:06,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:28:06,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:28:06,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:28:06,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:28:07,000 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1101 out of 2410 [2023-08-29 03:28:07,001 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 226 transitions, 741 flow. Second operand has 3 states, 3 states have (on average 1107.3333333333333) internal successors, (3322), 3 states have internal predecessors, (3322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:28:07,001 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:28:07,001 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1101 of 2410 [2023-08-29 03:28:07,001 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand