./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/weaver/chl-array-int-trans.wvr.c --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/weaver/chl-array-int-trans.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 3f188168fffbbf8c03071990a7bb806f47bcfd599d52fd9001ab6073a6b782e8 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 18:49:27,450 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 18:49:27,452 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 18:49:27,475 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 18:49:27,475 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 18:49:27,476 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 18:49:27,477 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 18:49:27,478 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 18:49:27,479 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 18:49:27,480 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 18:49:27,480 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 18:49:27,481 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 18:49:27,481 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 18:49:27,482 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 18:49:27,483 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 18:49:27,484 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 18:49:27,484 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 18:49:27,485 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 18:49:27,486 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 18:49:27,488 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 18:49:27,489 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 18:49:27,490 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 18:49:27,490 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 18:49:27,491 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 18:49:27,493 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 18:49:27,494 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 18:49:27,494 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 18:49:27,495 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 18:49:27,495 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 18:49:27,495 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 18:49:27,496 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 18:49:27,496 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 18:49:27,497 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 18:49:27,497 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 18:49:27,498 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 18:49:27,498 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 18:49:27,499 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 18:49:27,499 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 18:49:27,499 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 18:49:27,500 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 18:49:27,504 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 18:49:27,505 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 18:49:27,523 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 18:49:27,524 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 18:49:27,524 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 18:49:27,524 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 18:49:27,525 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 18:49:27,525 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 18:49:27,525 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 18:49:27,525 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 18:49:27,526 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 18:49:27,526 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 18:49:27,526 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 18:49:27,526 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 18:49:27,526 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 18:49:27,526 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 18:49:27,526 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 18:49:27,527 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 18:49:27,527 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 18:49:27,527 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 18:49:27,527 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 18:49:27,527 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 18:49:27,527 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 18:49:27,527 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 18:49:27,528 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 18:49:27,528 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 18:49:27,528 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 18:49:27,528 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 18:49:27,528 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 18:49:27,528 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 18:49:27,529 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 18:49:27,529 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 18:49:27,529 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 18:49:27,529 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 18:49:27,529 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 18:49:27,529 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 18:49:27,529 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 18:49:27,530 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 18:49:27,530 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 18:49:27,530 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3f188168fffbbf8c03071990a7bb806f47bcfd599d52fd9001ab6073a6b782e8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-29 18:49:27,729 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 18:49:27,743 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 18:49:27,745 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 18:49:27,746 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 18:49:27,746 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 18:49:27,747 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-array-int-trans.wvr.c [2023-08-29 18:49:28,731 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 18:49:28,908 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 18:49:28,909 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-array-int-trans.wvr.c [2023-08-29 18:49:28,915 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87c4209c5/b0951c7ebfa843c1b046fb0c1f510ce9/FLAGd269a9b8e [2023-08-29 18:49:28,927 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87c4209c5/b0951c7ebfa843c1b046fb0c1f510ce9 [2023-08-29 18:49:28,929 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 18:49:28,930 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 18:49:28,931 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 18:49:28,931 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 18:49:28,934 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 18:49:28,934 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 06:49:28" (1/1) ... [2023-08-29 18:49:28,935 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@157abc3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:49:28, skipping insertion in model container [2023-08-29 18:49:28,935 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 06:49:28" (1/1) ... [2023-08-29 18:49:28,939 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 18:49:28,956 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 18:49:29,083 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-array-int-trans.wvr.c[2728,2741] [2023-08-29 18:49:29,088 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 18:49:29,094 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 18:49:29,118 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-array-int-trans.wvr.c[2728,2741] [2023-08-29 18:49:29,121 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 18:49:29,131 INFO L208 MainTranslator]: Completed translation [2023-08-29 18:49:29,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:49:29 WrapperNode [2023-08-29 18:49:29,132 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 18:49:29,133 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 18:49:29,133 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 18:49:29,133 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 18:49:29,137 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:49:29" (1/1) ... [2023-08-29 18:49:29,146 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:49:29" (1/1) ... [2023-08-29 18:49:29,179 INFO L138 Inliner]: procedures = 26, calls = 49, calls flagged for inlining = 13, calls inlined = 21, statements flattened = 510 [2023-08-29 18:49:29,179 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 18:49:29,180 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 18:49:29,180 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 18:49:29,180 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 18:49:29,201 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:49:29" (1/1) ... [2023-08-29 18:49:29,201 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:49:29" (1/1) ... [2023-08-29 18:49:29,209 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:49:29" (1/1) ... [2023-08-29 18:49:29,209 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:49:29" (1/1) ... [2023-08-29 18:49:29,245 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:49:29" (1/1) ... [2023-08-29 18:49:29,249 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:49:29" (1/1) ... [2023-08-29 18:49:29,251 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:49:29" (1/1) ... [2023-08-29 18:49:29,253 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:49:29" (1/1) ... [2023-08-29 18:49:29,257 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 18:49:29,257 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 18:49:29,258 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 18:49:29,258 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 18:49:29,258 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:49:29" (1/1) ... [2023-08-29 18:49:29,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 18:49:29,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 18:49:29,331 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 18:49:29,367 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 18:49:29,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 18:49:29,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 18:49:29,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 18:49:29,407 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 18:49:29,408 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-29 18:49:29,408 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-29 18:49:29,408 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-29 18:49:29,408 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-29 18:49:29,408 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-29 18:49:29,408 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-29 18:49:29,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 18:49:29,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-29 18:49:29,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 18:49:29,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 18:49:29,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 18:49:29,410 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 18:49:29,493 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 18:49:29,495 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 18:49:30,173 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 18:49:30,187 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 18:49:30,187 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-08-29 18:49:30,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:49:30 BoogieIcfgContainer [2023-08-29 18:49:30,189 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 18:49:30,192 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 18:49:30,192 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 18:49:30,194 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 18:49:30,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 06:49:28" (1/3) ... [2023-08-29 18:49:30,194 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77fbb011 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 06:49:30, skipping insertion in model container [2023-08-29 18:49:30,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:49:29" (2/3) ... [2023-08-29 18:49:30,195 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77fbb011 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 06:49:30, skipping insertion in model container [2023-08-29 18:49:30,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:49:30" (3/3) ... [2023-08-29 18:49:30,196 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-array-int-trans.wvr.c [2023-08-29 18:49:30,201 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 18:49:30,206 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 18:49:30,206 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 60 error locations. [2023-08-29 18:49:30,207 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 18:49:30,324 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-29 18:49:30,367 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 585 places, 608 transitions, 1240 flow [2023-08-29 18:49:30,543 INFO L130 PetriNetUnfolder]: 33/605 cut-off events. [2023-08-29 18:49:30,544 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-29 18:49:30,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 618 conditions, 605 events. 33/605 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1453 event pairs, 0 based on Foata normal form. 0/512 useless extension candidates. Maximal degree in co-relation 436. Up to 3 conditions per place. [2023-08-29 18:49:30,554 INFO L82 GeneralOperation]: Start removeDead. Operand has 585 places, 608 transitions, 1240 flow [2023-08-29 18:49:30,564 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 563 places, 584 transitions, 1186 flow [2023-08-29 18:49:30,566 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 18:49:30,585 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 563 places, 584 transitions, 1186 flow [2023-08-29 18:49:30,587 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 563 places, 584 transitions, 1186 flow [2023-08-29 18:49:30,588 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 563 places, 584 transitions, 1186 flow [2023-08-29 18:49:30,677 INFO L130 PetriNetUnfolder]: 31/584 cut-off events. [2023-08-29 18:49:30,677 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-29 18:49:30,681 INFO L83 FinitePrefix]: Finished finitePrefix Result has 597 conditions, 584 events. 31/584 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1434 event pairs, 0 based on Foata normal form. 0/494 useless extension candidates. Maximal degree in co-relation 436. Up to 3 conditions per place. [2023-08-29 18:49:30,704 INFO L119 LiptonReduction]: Number of co-enabled transitions 85536 [2023-08-29 18:49:40,239 INFO L134 LiptonReduction]: Checked pairs total: 534753 [2023-08-29 18:49:40,239 INFO L136 LiptonReduction]: Total number of compositions: 495 [2023-08-29 18:49:40,258 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 18:49:40,267 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;@6c52d16e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 18:49:40,268 INFO L358 AbstractCegarLoop]: Starting to check reachability of 105 error locations. [2023-08-29 18:49:40,269 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 18:49:40,269 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 18:49:40,270 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:49:40,270 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 18:49:40,271 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 101 more)] === [2023-08-29 18:49:40,274 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:49:40,274 INFO L85 PathProgramCache]: Analyzing trace with hash 2196, now seen corresponding path program 1 times [2023-08-29 18:49:40,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:49:40,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135371517] [2023-08-29 18:49:40,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:49:40,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:49:40,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:49:40,352 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 18:49:40,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:49:40,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135371517] [2023-08-29 18:49:40,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135371517] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:49:40,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:49:40,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 18:49:40,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447091026] [2023-08-29 18:49:40,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:49:40,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 18:49:40,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:49:40,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 18:49:40,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 18:49:40,381 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 582 out of 1103 [2023-08-29 18:49:40,385 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 220 transitions, 458 flow. Second operand has 2 states, 2 states have (on average 582.5) internal successors, (1165), 2 states have internal predecessors, (1165), 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 18:49:40,385 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:49:40,385 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 582 of 1103 [2023-08-29 18:49:40,386 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:49:42,837 INFO L130 PetriNetUnfolder]: 8052/29020 cut-off events. [2023-08-29 18:49:42,837 INFO L131 PetriNetUnfolder]: For 624/741 co-relation queries the response was YES. [2023-08-29 18:49:42,921 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40133 conditions, 29020 events. 8052/29020 cut-off events. For 624/741 co-relation queries the response was YES. Maximal size of possible extension queue 722. Compared 355681 event pairs, 5793 based on Foata normal form. 2152/25480 useless extension candidates. Maximal degree in co-relation 36687. Up to 10786 conditions per place. [2023-08-29 18:49:43,047 INFO L137 encePairwiseOnDemand]: 1078/1103 looper letters, 55 selfloop transitions, 0 changer transitions 1/195 dead transitions. [2023-08-29 18:49:43,047 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 195 transitions, 520 flow [2023-08-29 18:49:43,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 18:49:43,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 18:49:43,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1245 transitions. [2023-08-29 18:49:43,060 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5643699002719855 [2023-08-29 18:49:43,061 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1245 transitions. [2023-08-29 18:49:43,061 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1245 transitions. [2023-08-29 18:49:43,063 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:49:43,065 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1245 transitions. [2023-08-29 18:49:43,071 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 622.5) internal successors, (1245), 2 states have internal predecessors, (1245), 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 18:49:43,078 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1103.0) internal successors, (3309), 3 states have internal predecessors, (3309), 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 18:49:43,079 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1103.0) internal successors, (3309), 3 states have internal predecessors, (3309), 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 18:49:43,081 INFO L175 Difference]: Start difference. First operand has 214 places, 220 transitions, 458 flow. Second operand 2 states and 1245 transitions. [2023-08-29 18:49:43,082 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 195 transitions, 520 flow [2023-08-29 18:49:43,093 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 195 transitions, 508 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-29 18:49:43,097 INFO L231 Difference]: Finished difference. Result has 188 places, 194 transitions, 393 flow [2023-08-29 18:49:43,099 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1103, PETRI_DIFFERENCE_MINUEND_FLOW=396, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=393, PETRI_PLACES=188, PETRI_TRANSITIONS=194} [2023-08-29 18:49:43,104 INFO L281 CegarLoopForPetriNet]: 214 programPoint places, -26 predicate places. [2023-08-29 18:49:43,105 INFO L495 AbstractCegarLoop]: Abstraction has has 188 places, 194 transitions, 393 flow [2023-08-29 18:49:43,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 582.5) internal successors, (1165), 2 states have internal predecessors, (1165), 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 18:49:43,106 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:49:43,106 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:49:43,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 18:49:43,109 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 101 more)] === [2023-08-29 18:49:43,115 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:49:43,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1066737720, now seen corresponding path program 1 times [2023-08-29 18:49:43,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:49:43,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058977866] [2023-08-29 18:49:43,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:49:43,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:49:43,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:49:43,278 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 18:49:43,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:49:43,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058977866] [2023-08-29 18:49:43,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058977866] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:49:43,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:49:43,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:49:43,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106574049] [2023-08-29 18:49:43,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:49:43,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:49:43,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:49:43,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:49:43,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:49:43,300 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 566 out of 1103 [2023-08-29 18:49:43,302 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 194 transitions, 393 flow. Second operand has 3 states, 3 states have (on average 568.3333333333334) internal successors, (1705), 3 states have internal predecessors, (1705), 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 18:49:43,302 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:49:43,302 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 566 of 1103 [2023-08-29 18:49:43,303 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:49:45,651 INFO L130 PetriNetUnfolder]: 10814/35892 cut-off events. [2023-08-29 18:49:45,651 INFO L131 PetriNetUnfolder]: For 155/372 co-relation queries the response was YES. [2023-08-29 18:49:45,736 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50532 conditions, 35892 events. 10814/35892 cut-off events. For 155/372 co-relation queries the response was YES. Maximal size of possible extension queue 916. Compared 439265 event pairs, 8015 based on Foata normal form. 0/29299 useless extension candidates. Maximal degree in co-relation 50529. Up to 14526 conditions per place. [2023-08-29 18:49:45,872 INFO L137 encePairwiseOnDemand]: 1098/1103 looper letters, 58 selfloop transitions, 1 changer transitions 0/190 dead transitions. [2023-08-29 18:49:45,872 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 190 transitions, 503 flow [2023-08-29 18:49:45,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:49:45,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:49:45,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1761 transitions. [2023-08-29 18:49:45,876 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5321849501359928 [2023-08-29 18:49:45,876 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1761 transitions. [2023-08-29 18:49:45,876 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1761 transitions. [2023-08-29 18:49:45,877 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:49:45,877 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1761 transitions. [2023-08-29 18:49:45,880 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 587.0) internal successors, (1761), 3 states have internal predecessors, (1761), 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 18:49:45,885 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1103.0) internal successors, (4412), 4 states have internal predecessors, (4412), 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 18:49:45,886 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1103.0) internal successors, (4412), 4 states have internal predecessors, (4412), 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 18:49:45,887 INFO L175 Difference]: Start difference. First operand has 188 places, 194 transitions, 393 flow. Second operand 3 states and 1761 transitions. [2023-08-29 18:49:45,887 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 190 transitions, 503 flow [2023-08-29 18:49:45,889 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 190 transitions, 503 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 18:49:45,893 INFO L231 Difference]: Finished difference. Result has 185 places, 190 transitions, 387 flow [2023-08-29 18:49:45,894 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1103, PETRI_DIFFERENCE_MINUEND_FLOW=385, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=189, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=387, PETRI_PLACES=185, PETRI_TRANSITIONS=190} [2023-08-29 18:49:45,894 INFO L281 CegarLoopForPetriNet]: 214 programPoint places, -29 predicate places. [2023-08-29 18:49:45,895 INFO L495 AbstractCegarLoop]: Abstraction has has 185 places, 190 transitions, 387 flow [2023-08-29 18:49:45,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 568.3333333333334) internal successors, (1705), 3 states have internal predecessors, (1705), 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 18:49:45,896 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:49:45,896 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:49:45,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 18:49:45,896 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 101 more)] === [2023-08-29 18:49:45,897 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:49:45,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1370169714, now seen corresponding path program 1 times [2023-08-29 18:49:45,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:49:45,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683066014] [2023-08-29 18:49:45,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:49:45,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:49:45,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:49:45,999 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 18:49:46,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:49:46,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683066014] [2023-08-29 18:49:46,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683066014] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:49:46,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:49:46,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:49:46,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879513871] [2023-08-29 18:49:46,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:49:46,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:49:46,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:49:46,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:49:46,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:49:46,138 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 566 out of 1103 [2023-08-29 18:49:46,141 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 190 transitions, 387 flow. Second operand has 3 states, 3 states have (on average 569.0) internal successors, (1707), 3 states have internal predecessors, (1707), 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 18:49:46,141 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:49:46,142 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 566 of 1103 [2023-08-29 18:49:46,142 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:49:48,445 INFO L130 PetriNetUnfolder]: 12514/41275 cut-off events. [2023-08-29 18:49:48,446 INFO L131 PetriNetUnfolder]: For 182/407 co-relation queries the response was YES. [2023-08-29 18:49:48,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58288 conditions, 41275 events. 12514/41275 cut-off events. For 182/407 co-relation queries the response was YES. Maximal size of possible extension queue 993. Compared 513429 event pairs, 9481 based on Foata normal form. 0/33406 useless extension candidates. Maximal degree in co-relation 58284. Up to 16862 conditions per place. [2023-08-29 18:49:48,693 INFO L137 encePairwiseOnDemand]: 1098/1103 looper letters, 59 selfloop transitions, 1 changer transitions 0/186 dead transitions. [2023-08-29 18:49:48,693 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 186 transitions, 499 flow [2023-08-29 18:49:48,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:49:48,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:49:48,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1762 transitions. [2023-08-29 18:49:48,697 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5324871562405561 [2023-08-29 18:49:48,697 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1762 transitions. [2023-08-29 18:49:48,697 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1762 transitions. [2023-08-29 18:49:48,698 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:49:48,698 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1762 transitions. [2023-08-29 18:49:48,701 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 587.3333333333334) internal successors, (1762), 3 states have internal predecessors, (1762), 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 18:49:48,706 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1103.0) internal successors, (4412), 4 states have internal predecessors, (4412), 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 18:49:48,710 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1103.0) internal successors, (4412), 4 states have internal predecessors, (4412), 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 18:49:48,710 INFO L175 Difference]: Start difference. First operand has 185 places, 190 transitions, 387 flow. Second operand 3 states and 1762 transitions. [2023-08-29 18:49:48,710 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 186 transitions, 499 flow [2023-08-29 18:49:48,712 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 186 transitions, 498 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 18:49:48,713 INFO L231 Difference]: Finished difference. Result has 182 places, 186 transitions, 380 flow [2023-08-29 18:49:48,714 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1103, PETRI_DIFFERENCE_MINUEND_FLOW=378, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=380, PETRI_PLACES=182, PETRI_TRANSITIONS=186} [2023-08-29 18:49:48,714 INFO L281 CegarLoopForPetriNet]: 214 programPoint places, -32 predicate places. [2023-08-29 18:49:48,717 INFO L495 AbstractCegarLoop]: Abstraction has has 182 places, 186 transitions, 380 flow [2023-08-29 18:49:48,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 569.0) internal successors, (1707), 3 states have internal predecessors, (1707), 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 18:49:48,718 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:49:48,718 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:49:48,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 18:49:48,719 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 101 more)] === [2023-08-29 18:49:48,719 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:49:48,719 INFO L85 PathProgramCache]: Analyzing trace with hash -1821816876, now seen corresponding path program 1 times [2023-08-29 18:49:48,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:49:48,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195306465] [2023-08-29 18:49:48,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:49:48,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:49:48,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:49:48,782 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 18:49:48,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:49:48,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195306465] [2023-08-29 18:49:48,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195306465] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:49:48,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:49:48,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:49:48,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443241453] [2023-08-29 18:49:48,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:49:48,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:49:48,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:49:48,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:49:48,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:49:48,799 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 566 out of 1103 [2023-08-29 18:49:48,801 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 186 transitions, 380 flow. Second operand has 3 states, 3 states have (on average 569.3333333333334) internal successors, (1708), 3 states have internal predecessors, (1708), 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 18:49:48,803 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:49:48,803 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 566 of 1103 [2023-08-29 18:49:48,803 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:49:50,897 INFO L130 PetriNetUnfolder]: 9446/32018 cut-off events. [2023-08-29 18:49:50,897 INFO L131 PetriNetUnfolder]: For 159/229 co-relation queries the response was YES. [2023-08-29 18:49:50,962 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44802 conditions, 32018 events. 9446/32018 cut-off events. For 159/229 co-relation queries the response was YES. Maximal size of possible extension queue 818. Compared 390206 event pairs, 6917 based on Foata normal form. 0/25989 useless extension candidates. Maximal degree in co-relation 44798. Up to 12674 conditions per place. [2023-08-29 18:49:51,057 INFO L137 encePairwiseOnDemand]: 1098/1103 looper letters, 56 selfloop transitions, 1 changer transitions 0/182 dead transitions. [2023-08-29 18:49:51,057 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 182 transitions, 486 flow [2023-08-29 18:49:51,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:49:51,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:49:51,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1759 transitions. [2023-08-29 18:49:51,060 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5315805379268661 [2023-08-29 18:49:51,060 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1759 transitions. [2023-08-29 18:49:51,060 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1759 transitions. [2023-08-29 18:49:51,061 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:49:51,061 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1759 transitions. [2023-08-29 18:49:51,079 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 586.3333333333334) internal successors, (1759), 3 states have internal predecessors, (1759), 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 18:49:51,083 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1103.0) internal successors, (4412), 4 states have internal predecessors, (4412), 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 18:49:51,084 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1103.0) internal successors, (4412), 4 states have internal predecessors, (4412), 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 18:49:51,084 INFO L175 Difference]: Start difference. First operand has 182 places, 186 transitions, 380 flow. Second operand 3 states and 1759 transitions. [2023-08-29 18:49:51,084 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 182 transitions, 486 flow [2023-08-29 18:49:51,085 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 182 transitions, 485 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 18:49:51,087 INFO L231 Difference]: Finished difference. Result has 179 places, 182 transitions, 373 flow [2023-08-29 18:49:51,087 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1103, PETRI_DIFFERENCE_MINUEND_FLOW=371, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=373, PETRI_PLACES=179, PETRI_TRANSITIONS=182} [2023-08-29 18:49:51,087 INFO L281 CegarLoopForPetriNet]: 214 programPoint places, -35 predicate places. [2023-08-29 18:49:51,087 INFO L495 AbstractCegarLoop]: Abstraction has has 179 places, 182 transitions, 373 flow [2023-08-29 18:49:51,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 569.3333333333334) internal successors, (1708), 3 states have internal predecessors, (1708), 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 18:49:51,088 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:49:51,088 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:49:51,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 18:49:51,089 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 101 more)] === [2023-08-29 18:49:51,089 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:49:51,089 INFO L85 PathProgramCache]: Analyzing trace with hash -569875197, now seen corresponding path program 1 times [2023-08-29 18:49:51,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:49:51,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745527817] [2023-08-29 18:49:51,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:49:51,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:49:51,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:49:51,149 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 18:49:51,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:49:51,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745527817] [2023-08-29 18:49:51,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745527817] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:49:51,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:49:51,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 18:49:51,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149649822] [2023-08-29 18:49:51,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:49:51,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:49:51,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:49:51,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:49:51,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:49:51,158 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 574 out of 1103 [2023-08-29 18:49:51,160 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 182 transitions, 373 flow. Second operand has 3 states, 3 states have (on average 577.0) internal successors, (1731), 3 states have internal predecessors, (1731), 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 18:49:51,160 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:49:51,160 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 574 of 1103 [2023-08-29 18:49:51,160 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:49:53,036 INFO L130 PetriNetUnfolder]: 8816/30160 cut-off events. [2023-08-29 18:49:53,037 INFO L131 PetriNetUnfolder]: For 140/140 co-relation queries the response was YES. [2023-08-29 18:49:53,089 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42088 conditions, 30160 events. 8816/30160 cut-off events. For 140/140 co-relation queries the response was YES. Maximal size of possible extension queue 727. Compared 364436 event pairs, 5793 based on Foata normal form. 0/24337 useless extension candidates. Maximal degree in co-relation 42084. Up to 10785 conditions per place. [2023-08-29 18:49:53,161 INFO L137 encePairwiseOnDemand]: 1100/1103 looper letters, 86 selfloop transitions, 2 changer transitions 0/215 dead transitions. [2023-08-29 18:49:53,161 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 215 transitions, 617 flow [2023-08-29 18:49:53,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:49:53,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:49:53,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1811 transitions. [2023-08-29 18:49:53,164 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5472952553641584 [2023-08-29 18:49:53,164 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1811 transitions. [2023-08-29 18:49:53,164 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1811 transitions. [2023-08-29 18:49:53,165 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:49:53,165 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1811 transitions. [2023-08-29 18:49:53,168 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 603.6666666666666) internal successors, (1811), 3 states have internal predecessors, (1811), 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 18:49:53,172 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1103.0) internal successors, (4412), 4 states have internal predecessors, (4412), 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 18:49:53,173 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1103.0) internal successors, (4412), 4 states have internal predecessors, (4412), 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 18:49:53,173 INFO L175 Difference]: Start difference. First operand has 179 places, 182 transitions, 373 flow. Second operand 3 states and 1811 transitions. [2023-08-29 18:49:53,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 215 transitions, 617 flow [2023-08-29 18:49:53,174 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 215 transitions, 616 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 18:49:53,176 INFO L231 Difference]: Finished difference. Result has 181 places, 183 transitions, 384 flow [2023-08-29 18:49:53,176 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1103, PETRI_DIFFERENCE_MINUEND_FLOW=372, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=384, PETRI_PLACES=181, PETRI_TRANSITIONS=183} [2023-08-29 18:49:53,177 INFO L281 CegarLoopForPetriNet]: 214 programPoint places, -33 predicate places. [2023-08-29 18:49:53,177 INFO L495 AbstractCegarLoop]: Abstraction has has 181 places, 183 transitions, 384 flow [2023-08-29 18:49:53,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 577.0) internal successors, (1731), 3 states have internal predecessors, (1731), 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 18:49:53,178 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:49:53,178 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:49:53,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 18:49:53,178 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 101 more)] === [2023-08-29 18:49:53,178 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:49:53,178 INFO L85 PathProgramCache]: Analyzing trace with hash 1328973341, now seen corresponding path program 1 times [2023-08-29 18:49:53,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:49:53,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700420432] [2023-08-29 18:49:53,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:49:53,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:49:53,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:49:53,418 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 18:49:53,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:49:53,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700420432] [2023-08-29 18:49:53,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700420432] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:49:53,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:49:53,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 18:49:53,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465577542] [2023-08-29 18:49:53,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:49:53,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 18:49:53,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:49:53,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 18:49:53,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 18:49:53,958 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 561 out of 1103 [2023-08-29 18:49:53,960 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 183 transitions, 384 flow. Second operand has 6 states, 6 states have (on average 563.3333333333334) internal successors, (3380), 6 states have internal predecessors, (3380), 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 18:49:53,960 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:49:53,960 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 561 of 1103 [2023-08-29 18:49:53,960 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:49:57,232 INFO L130 PetriNetUnfolder]: 26784/44908 cut-off events. [2023-08-29 18:49:57,232 INFO L131 PetriNetUnfolder]: For 3890/3890 co-relation queries the response was YES. [2023-08-29 18:49:57,297 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83725 conditions, 44908 events. 26784/44908 cut-off events. For 3890/3890 co-relation queries the response was YES. Maximal size of possible extension queue 1247. Compared 374976 event pairs, 2505 based on Foata normal form. 0/36589 useless extension candidates. Maximal degree in co-relation 83720. Up to 12412 conditions per place. [2023-08-29 18:49:57,424 INFO L137 encePairwiseOnDemand]: 1098/1103 looper letters, 212 selfloop transitions, 4 changer transitions 0/338 dead transitions. [2023-08-29 18:49:57,424 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 338 transitions, 1166 flow [2023-08-29 18:49:57,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 18:49:57,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 18:49:57,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3578 transitions. [2023-08-29 18:49:57,430 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5406467210637654 [2023-08-29 18:49:57,430 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3578 transitions. [2023-08-29 18:49:57,430 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3578 transitions. [2023-08-29 18:49:57,432 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:49:57,432 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3578 transitions. [2023-08-29 18:49:57,436 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 596.3333333333334) internal successors, (3578), 6 states have internal predecessors, (3578), 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 18:49:57,442 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1103.0) internal successors, (7721), 7 states have internal predecessors, (7721), 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 18:49:57,443 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1103.0) internal successors, (7721), 7 states have internal predecessors, (7721), 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 18:49:57,443 INFO L175 Difference]: Start difference. First operand has 181 places, 183 transitions, 384 flow. Second operand 6 states and 3578 transitions. [2023-08-29 18:49:57,443 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 338 transitions, 1166 flow [2023-08-29 18:49:57,447 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 338 transitions, 1156 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 18:49:57,449 INFO L231 Difference]: Finished difference. Result has 184 places, 182 transitions, 388 flow [2023-08-29 18:49:57,450 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1103, PETRI_DIFFERENCE_MINUEND_FLOW=380, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=388, PETRI_PLACES=184, PETRI_TRANSITIONS=182} [2023-08-29 18:49:57,450 INFO L281 CegarLoopForPetriNet]: 214 programPoint places, -30 predicate places. [2023-08-29 18:49:57,450 INFO L495 AbstractCegarLoop]: Abstraction has has 184 places, 182 transitions, 388 flow [2023-08-29 18:49:57,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 563.3333333333334) internal successors, (3380), 6 states have internal predecessors, (3380), 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 18:49:57,452 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:49:57,452 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:49:57,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 18:49:57,452 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 101 more)] === [2023-08-29 18:49:57,452 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:49:57,452 INFO L85 PathProgramCache]: Analyzing trace with hash -853126434, now seen corresponding path program 1 times [2023-08-29 18:49:57,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:49:57,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034042421] [2023-08-29 18:49:57,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:49:57,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:49:57,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:49:57,473 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 18:49:57,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:49:57,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034042421] [2023-08-29 18:49:57,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034042421] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:49:57,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:49:57,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 18:49:57,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332483950] [2023-08-29 18:49:57,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:49:57,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:49:57,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:49:57,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:49:57,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:49:57,482 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 574 out of 1103 [2023-08-29 18:49:57,484 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 182 transitions, 388 flow. Second operand has 3 states, 3 states have (on average 577.6666666666666) internal successors, (1733), 3 states have internal predecessors, (1733), 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 18:49:57,484 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:49:57,484 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 574 of 1103 [2023-08-29 18:49:57,484 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:49:59,605 INFO L130 PetriNetUnfolder]: 9716/34218 cut-off events. [2023-08-29 18:49:59,606 INFO L131 PetriNetUnfolder]: For 2426/2495 co-relation queries the response was YES. [2023-08-29 18:49:59,662 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50443 conditions, 34218 events. 9716/34218 cut-off events. For 2426/2495 co-relation queries the response was YES. Maximal size of possible extension queue 771. Compared 424815 event pairs, 6413 based on Foata normal form. 0/28251 useless extension candidates. Maximal degree in co-relation 50438. Up to 11821 conditions per place. [2023-08-29 18:49:59,743 INFO L137 encePairwiseOnDemand]: 1100/1103 looper letters, 88 selfloop transitions, 2 changer transitions 0/216 dead transitions. [2023-08-29 18:49:59,743 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 216 transitions, 648 flow [2023-08-29 18:49:59,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:49:59,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:49:59,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1811 transitions. [2023-08-29 18:49:59,747 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5472952553641584 [2023-08-29 18:49:59,747 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1811 transitions. [2023-08-29 18:49:59,747 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1811 transitions. [2023-08-29 18:49:59,748 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:49:59,748 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1811 transitions. [2023-08-29 18:49:59,750 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 603.6666666666666) internal successors, (1811), 3 states have internal predecessors, (1811), 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 18:49:59,753 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1103.0) internal successors, (4412), 4 states have internal predecessors, (4412), 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 18:49:59,754 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1103.0) internal successors, (4412), 4 states have internal predecessors, (4412), 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 18:49:59,754 INFO L175 Difference]: Start difference. First operand has 184 places, 182 transitions, 388 flow. Second operand 3 states and 1811 transitions. [2023-08-29 18:49:59,754 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 216 transitions, 648 flow [2023-08-29 18:49:59,767 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 216 transitions, 639 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-29 18:49:59,768 INFO L231 Difference]: Finished difference. Result has 183 places, 183 transitions, 393 flow [2023-08-29 18:49:59,768 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1103, PETRI_DIFFERENCE_MINUEND_FLOW=381, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=393, PETRI_PLACES=183, PETRI_TRANSITIONS=183} [2023-08-29 18:49:59,769 INFO L281 CegarLoopForPetriNet]: 214 programPoint places, -31 predicate places. [2023-08-29 18:49:59,769 INFO L495 AbstractCegarLoop]: Abstraction has has 183 places, 183 transitions, 393 flow [2023-08-29 18:49:59,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 577.6666666666666) internal successors, (1733), 3 states have internal predecessors, (1733), 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 18:49:59,770 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:49:59,770 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:49:59,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 18:49:59,770 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 101 more)] === [2023-08-29 18:49:59,770 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:49:59,770 INFO L85 PathProgramCache]: Analyzing trace with hash 2090295781, now seen corresponding path program 1 times [2023-08-29 18:49:59,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:49:59,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336180102] [2023-08-29 18:49:59,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:49:59,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:49:59,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:49:59,794 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 18:49:59,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:49:59,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336180102] [2023-08-29 18:49:59,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336180102] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:49:59,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:49:59,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:49:59,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199309975] [2023-08-29 18:49:59,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:49:59,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:49:59,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:49:59,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:49:59,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:49:59,807 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 569 out of 1103 [2023-08-29 18:49:59,808 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 183 transitions, 393 flow. Second operand has 3 states, 3 states have (on average 572.6666666666666) internal successors, (1718), 3 states have internal predecessors, (1718), 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 18:49:59,808 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:49:59,808 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 569 of 1103 [2023-08-29 18:49:59,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:50:02,560 INFO L130 PetriNetUnfolder]: 16908/41928 cut-off events. [2023-08-29 18:50:02,561 INFO L131 PetriNetUnfolder]: For 4487/4563 co-relation queries the response was YES. [2023-08-29 18:50:02,640 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70065 conditions, 41928 events. 16908/41928 cut-off events. For 4487/4563 co-relation queries the response was YES. Maximal size of possible extension queue 1036. Compared 466977 event pairs, 3389 based on Foata normal form. 0/35656 useless extension candidates. Maximal degree in co-relation 70059. Up to 18208 conditions per place. [2023-08-29 18:50:02,740 INFO L137 encePairwiseOnDemand]: 1097/1103 looper letters, 97 selfloop transitions, 2 changer transitions 0/216 dead transitions. [2023-08-29 18:50:02,740 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 216 transitions, 679 flow [2023-08-29 18:50:02,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:50:02,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:50:02,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1806 transitions. [2023-08-29 18:50:02,744 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5457842248413418 [2023-08-29 18:50:02,744 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1806 transitions. [2023-08-29 18:50:02,744 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1806 transitions. [2023-08-29 18:50:02,745 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:50:02,745 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1806 transitions. [2023-08-29 18:50:02,747 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 602.0) internal successors, (1806), 3 states have internal predecessors, (1806), 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 18:50:02,749 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1103.0) internal successors, (4412), 4 states have internal predecessors, (4412), 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 18:50:02,750 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1103.0) internal successors, (4412), 4 states have internal predecessors, (4412), 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 18:50:02,750 INFO L175 Difference]: Start difference. First operand has 183 places, 183 transitions, 393 flow. Second operand 3 states and 1806 transitions. [2023-08-29 18:50:02,750 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 216 transitions, 679 flow [2023-08-29 18:50:02,759 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 216 transitions, 675 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 18:50:02,761 INFO L231 Difference]: Finished difference. Result has 181 places, 181 transitions, 399 flow [2023-08-29 18:50:02,761 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1103, PETRI_DIFFERENCE_MINUEND_FLOW=383, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=399, PETRI_PLACES=181, PETRI_TRANSITIONS=181} [2023-08-29 18:50:02,761 INFO L281 CegarLoopForPetriNet]: 214 programPoint places, -33 predicate places. [2023-08-29 18:50:02,761 INFO L495 AbstractCegarLoop]: Abstraction has has 181 places, 181 transitions, 399 flow [2023-08-29 18:50:02,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 572.6666666666666) internal successors, (1718), 3 states have internal predecessors, (1718), 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 18:50:02,762 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:50:02,762 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:50:02,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-29 18:50:02,762 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 101 more)] === [2023-08-29 18:50:02,762 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:50:02,763 INFO L85 PathProgramCache]: Analyzing trace with hash 92943666, now seen corresponding path program 1 times [2023-08-29 18:50:02,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:50:02,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078927864] [2023-08-29 18:50:02,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:50:02,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:50:02,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:50:02,783 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 18:50:02,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:50:02,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078927864] [2023-08-29 18:50:02,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078927864] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:50:02,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:50:02,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:50:02,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402539196] [2023-08-29 18:50:02,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:50:02,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:50:02,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:50:02,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:50:02,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:50:02,795 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 569 out of 1103 [2023-08-29 18:50:02,796 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 181 transitions, 399 flow. Second operand has 3 states, 3 states have (on average 573.3333333333334) internal successors, (1720), 3 states have internal predecessors, (1720), 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 18:50:02,796 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:50:02,796 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 569 of 1103 [2023-08-29 18:50:02,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:50:06,930 INFO L130 PetriNetUnfolder]: 25441/63742 cut-off events. [2023-08-29 18:50:06,930 INFO L131 PetriNetUnfolder]: For 7034/7108 co-relation queries the response was YES. [2023-08-29 18:50:07,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 107557 conditions, 63742 events. 25441/63742 cut-off events. For 7034/7108 co-relation queries the response was YES. Maximal size of possible extension queue 1450. Compared 748019 event pairs, 5956 based on Foata normal form. 0/56958 useless extension candidates. Maximal degree in co-relation 107551. Up to 25504 conditions per place. [2023-08-29 18:50:07,232 INFO L137 encePairwiseOnDemand]: 1097/1103 looper letters, 107 selfloop transitions, 2 changer transitions 0/221 dead transitions. [2023-08-29 18:50:07,233 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 221 transitions, 729 flow [2023-08-29 18:50:07,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:50:07,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:50:07,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1812 transitions. [2023-08-29 18:50:07,236 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5475974614687217 [2023-08-29 18:50:07,236 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1812 transitions. [2023-08-29 18:50:07,236 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1812 transitions. [2023-08-29 18:50:07,237 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:50:07,237 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1812 transitions. [2023-08-29 18:50:07,239 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 604.0) internal successors, (1812), 3 states have internal predecessors, (1812), 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 18:50:07,242 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1103.0) internal successors, (4412), 4 states have internal predecessors, (4412), 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 18:50:07,242 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1103.0) internal successors, (4412), 4 states have internal predecessors, (4412), 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 18:50:07,242 INFO L175 Difference]: Start difference. First operand has 181 places, 181 transitions, 399 flow. Second operand 3 states and 1812 transitions. [2023-08-29 18:50:07,242 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 221 transitions, 729 flow [2023-08-29 18:50:07,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 221 transitions, 729 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 18:50:07,255 INFO L231 Difference]: Finished difference. Result has 180 places, 179 transitions, 407 flow [2023-08-29 18:50:07,255 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1103, PETRI_DIFFERENCE_MINUEND_FLOW=391, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=407, PETRI_PLACES=180, PETRI_TRANSITIONS=179} [2023-08-29 18:50:07,255 INFO L281 CegarLoopForPetriNet]: 214 programPoint places, -34 predicate places. [2023-08-29 18:50:07,256 INFO L495 AbstractCegarLoop]: Abstraction has has 180 places, 179 transitions, 407 flow [2023-08-29 18:50:07,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 573.3333333333334) internal successors, (1720), 3 states have internal predecessors, (1720), 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 18:50:07,256 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:50:07,256 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:50:07,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-29 18:50:07,256 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 101 more)] === [2023-08-29 18:50:07,257 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:50:07,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1096416983, now seen corresponding path program 1 times [2023-08-29 18:50:07,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:50:07,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64169903] [2023-08-29 18:50:07,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:50:07,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:50:07,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:50:07,321 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 18:50:07,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:50:07,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64169903] [2023-08-29 18:50:07,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64169903] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:50:07,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:50:07,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-29 18:50:07,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416055742] [2023-08-29 18:50:07,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:50:07,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-29 18:50:07,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:50:07,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-29 18:50:07,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-29 18:50:07,449 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 566 out of 1103 [2023-08-29 18:50:07,450 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 179 transitions, 407 flow. Second operand has 5 states, 5 states have (on average 568.0) internal successors, (2840), 5 states have internal predecessors, (2840), 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 18:50:07,450 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:50:07,450 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 566 of 1103 [2023-08-29 18:50:07,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:50:12,624 INFO L130 PetriNetUnfolder]: 28796/75299 cut-off events. [2023-08-29 18:50:12,624 INFO L131 PetriNetUnfolder]: For 12014/12103 co-relation queries the response was YES. [2023-08-29 18:50:12,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 128648 conditions, 75299 events. 28796/75299 cut-off events. For 12014/12103 co-relation queries the response was YES. Maximal size of possible extension queue 1765. Compared 936143 event pairs, 14863 based on Foata normal form. 602/68479 useless extension candidates. Maximal degree in co-relation 128641. Up to 26091 conditions per place. [2023-08-29 18:50:13,056 INFO L137 encePairwiseOnDemand]: 1098/1103 looper letters, 141 selfloop transitions, 4 changer transitions 0/264 dead transitions. [2023-08-29 18:50:13,057 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 264 transitions, 920 flow [2023-08-29 18:50:13,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-29 18:50:13,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-29 18:50:13,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2965 transitions. [2023-08-29 18:50:13,062 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5376246600181324 [2023-08-29 18:50:13,062 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2965 transitions. [2023-08-29 18:50:13,062 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2965 transitions. [2023-08-29 18:50:13,063 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:50:13,063 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2965 transitions. [2023-08-29 18:50:13,066 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 593.0) internal successors, (2965), 5 states have internal predecessors, (2965), 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 18:50:13,071 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 1103.0) internal successors, (6618), 6 states have internal predecessors, (6618), 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 18:50:13,071 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 1103.0) internal successors, (6618), 6 states have internal predecessors, (6618), 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 18:50:13,072 INFO L175 Difference]: Start difference. First operand has 180 places, 179 transitions, 407 flow. Second operand 5 states and 2965 transitions. [2023-08-29 18:50:13,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 264 transitions, 920 flow [2023-08-29 18:50:13,401 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 264 transitions, 920 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 18:50:13,402 INFO L231 Difference]: Finished difference. Result has 187 places, 182 transitions, 436 flow [2023-08-29 18:50:13,403 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1103, PETRI_DIFFERENCE_MINUEND_FLOW=407, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=436, PETRI_PLACES=187, PETRI_TRANSITIONS=182} [2023-08-29 18:50:13,403 INFO L281 CegarLoopForPetriNet]: 214 programPoint places, -27 predicate places. [2023-08-29 18:50:13,403 INFO L495 AbstractCegarLoop]: Abstraction has has 187 places, 182 transitions, 436 flow [2023-08-29 18:50:13,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 568.0) internal successors, (2840), 5 states have internal predecessors, (2840), 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 18:50:13,404 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:50:13,404 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:50:13,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-29 18:50:13,404 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 101 more)] === [2023-08-29 18:50:13,405 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:50:13,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1682280386, now seen corresponding path program 1 times [2023-08-29 18:50:13,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:50:13,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245358059] [2023-08-29 18:50:13,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:50:13,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:50:13,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:50:13,479 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-29 18:50:13,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:50:13,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245358059] [2023-08-29 18:50:13,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245358059] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:50:13,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:50:13,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-29 18:50:13,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401984274] [2023-08-29 18:50:13,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:50:13,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 18:50:13,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:50:13,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 18:50:13,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-29 18:50:13,712 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 558 out of 1103 [2023-08-29 18:50:13,713 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 182 transitions, 436 flow. Second operand has 6 states, 6 states have (on average 559.8333333333334) internal successors, (3359), 6 states have internal predecessors, (3359), 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 18:50:13,713 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:50:13,713 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 558 of 1103 [2023-08-29 18:50:13,713 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:50:27,016 INFO L130 PetriNetUnfolder]: 74046/177793 cut-off events. [2023-08-29 18:50:27,017 INFO L131 PetriNetUnfolder]: For 39434/39434 co-relation queries the response was YES. [2023-08-29 18:50:27,687 INFO L83 FinitePrefix]: Finished finitePrefix Result has 322152 conditions, 177793 events. 74046/177793 cut-off events. For 39434/39434 co-relation queries the response was YES. Maximal size of possible extension queue 4093. Compared 2354418 event pairs, 30619 based on Foata normal form. 1204/162430 useless extension candidates. Maximal degree in co-relation 322141. Up to 34063 conditions per place. [2023-08-29 18:50:28,189 INFO L137 encePairwiseOnDemand]: 1094/1103 looper letters, 321 selfloop transitions, 19 changer transitions 0/459 dead transitions. [2023-08-29 18:50:28,190 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 459 transitions, 1859 flow [2023-08-29 18:50:28,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 18:50:28,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 18:50:28,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 5890 transitions. [2023-08-29 18:50:28,197 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5339981867633726 [2023-08-29 18:50:28,197 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 5890 transitions. [2023-08-29 18:50:28,197 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 5890 transitions. [2023-08-29 18:50:28,199 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:50:28,199 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 5890 transitions. [2023-08-29 18:50:28,205 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 589.0) internal successors, (5890), 10 states have internal predecessors, (5890), 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 18:50:28,213 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 1103.0) internal successors, (12133), 11 states have internal predecessors, (12133), 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 18:50:28,214 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 1103.0) internal successors, (12133), 11 states have internal predecessors, (12133), 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 18:50:28,214 INFO L175 Difference]: Start difference. First operand has 187 places, 182 transitions, 436 flow. Second operand 10 states and 5890 transitions. [2023-08-29 18:50:28,214 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 459 transitions, 1859 flow [2023-08-29 18:50:29,639 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 459 transitions, 1855 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-29 18:50:29,642 INFO L231 Difference]: Finished difference. Result has 199 places, 197 transitions, 563 flow [2023-08-29 18:50:29,643 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1103, PETRI_DIFFERENCE_MINUEND_FLOW=432, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=563, PETRI_PLACES=199, PETRI_TRANSITIONS=197} [2023-08-29 18:50:29,643 INFO L281 CegarLoopForPetriNet]: 214 programPoint places, -15 predicate places. [2023-08-29 18:50:29,643 INFO L495 AbstractCegarLoop]: Abstraction has has 199 places, 197 transitions, 563 flow [2023-08-29 18:50:29,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 559.8333333333334) internal successors, (3359), 6 states have internal predecessors, (3359), 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 18:50:29,644 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:50:29,644 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:50:29,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-29 18:50:29,645 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread3Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 101 more)] === [2023-08-29 18:50:29,645 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:50:29,645 INFO L85 PathProgramCache]: Analyzing trace with hash 183329249, now seen corresponding path program 1 times [2023-08-29 18:50:29,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:50:29,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921984378] [2023-08-29 18:50:29,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:50:29,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:50:29,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:50:29,670 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 18:50:29,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:50:29,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921984378] [2023-08-29 18:50:29,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921984378] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:50:29,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:50:29,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 18:50:29,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993560269] [2023-08-29 18:50:29,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:50:29,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:50:29,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:50:29,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:50:29,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:50:29,679 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 574 out of 1103 [2023-08-29 18:50:29,680 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 197 transitions, 563 flow. Second operand has 3 states, 3 states have (on average 578.6666666666666) internal successors, (1736), 3 states have internal predecessors, (1736), 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 18:50:29,680 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:50:29,680 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 574 of 1103 [2023-08-29 18:50:29,680 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:50:45,424 INFO L130 PetriNetUnfolder]: 80922/206401 cut-off events. [2023-08-29 18:50:45,424 INFO L131 PetriNetUnfolder]: For 92194/92596 co-relation queries the response was YES. [2023-08-29 18:50:46,407 INFO L83 FinitePrefix]: Finished finitePrefix Result has 387634 conditions, 206401 events. 80922/206401 cut-off events. For 92194/92596 co-relation queries the response was YES. Maximal size of possible extension queue 4930. Compared 2888460 event pairs, 57858 based on Foata normal form. 2682/189299 useless extension candidates. Maximal degree in co-relation 387619. Up to 101358 conditions per place. [2023-08-29 18:50:47,179 INFO L137 encePairwiseOnDemand]: 1100/1103 looper letters, 121 selfloop transitions, 2 changer transitions 0/242 dead transitions. [2023-08-29 18:50:47,179 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 242 transitions, 1017 flow [2023-08-29 18:50:47,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:50:47,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:50:47,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1806 transitions. [2023-08-29 18:50:47,182 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5457842248413418 [2023-08-29 18:50:47,182 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1806 transitions. [2023-08-29 18:50:47,182 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1806 transitions. [2023-08-29 18:50:47,183 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:50:47,183 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1806 transitions. [2023-08-29 18:50:47,185 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 602.0) internal successors, (1806), 3 states have internal predecessors, (1806), 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 18:50:47,188 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1103.0) internal successors, (4412), 4 states have internal predecessors, (4412), 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 18:50:47,188 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1103.0) internal successors, (4412), 4 states have internal predecessors, (4412), 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 18:50:47,188 INFO L175 Difference]: Start difference. First operand has 199 places, 197 transitions, 563 flow. Second operand 3 states and 1806 transitions. [2023-08-29 18:50:47,188 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 242 transitions, 1017 flow [2023-08-29 18:50:47,332 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 242 transitions, 1015 flow, removed 1 selfloop flow, removed 0 redundant places. [2023-08-29 18:50:47,334 INFO L231 Difference]: Finished difference. Result has 202 places, 198 transitions, 575 flow [2023-08-29 18:50:47,334 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1103, PETRI_DIFFERENCE_MINUEND_FLOW=561, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=575, PETRI_PLACES=202, PETRI_TRANSITIONS=198} [2023-08-29 18:50:47,334 INFO L281 CegarLoopForPetriNet]: 214 programPoint places, -12 predicate places. [2023-08-29 18:50:47,334 INFO L495 AbstractCegarLoop]: Abstraction has has 202 places, 198 transitions, 575 flow [2023-08-29 18:50:47,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 578.6666666666666) internal successors, (1736), 3 states have internal predecessors, (1736), 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 18:50:47,335 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:50:47,335 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:50:47,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-29 18:50:47,335 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 101 more)] === [2023-08-29 18:50:47,335 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:50:47,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1547524995, now seen corresponding path program 1 times [2023-08-29 18:50:47,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:50:47,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15230041] [2023-08-29 18:50:47,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:50:47,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:50:47,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:50:47,578 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 18:50:47,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:50:47,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15230041] [2023-08-29 18:50:47,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15230041] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:50:47,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:50:47,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 18:50:47,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925497046] [2023-08-29 18:50:47,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:50:47,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 18:50:47,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:50:47,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 18:50:47,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 18:50:48,048 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 554 out of 1103 [2023-08-29 18:50:48,050 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 198 transitions, 575 flow. Second operand has 6 states, 6 states have (on average 556.8333333333334) internal successors, (3341), 6 states have internal predecessors, (3341), 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 18:50:48,050 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:50:48,050 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 554 of 1103 [2023-08-29 18:50:48,050 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:51:05,656 INFO L130 PetriNetUnfolder]: 93823/226225 cut-off events. [2023-08-29 18:51:05,656 INFO L131 PetriNetUnfolder]: For 110608/111016 co-relation queries the response was YES. [2023-08-29 18:51:06,849 INFO L83 FinitePrefix]: Finished finitePrefix Result has 443698 conditions, 226225 events. 93823/226225 cut-off events. For 110608/111016 co-relation queries the response was YES. Maximal size of possible extension queue 5360. Compared 3106755 event pairs, 62221 based on Foata normal form. 0/208444 useless extension candidates. Maximal degree in co-relation 443681. Up to 107457 conditions per place. [2023-08-29 18:51:07,721 INFO L137 encePairwiseOnDemand]: 1096/1103 looper letters, 228 selfloop transitions, 5 changer transitions 0/340 dead transitions. [2023-08-29 18:51:07,722 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 340 transitions, 1443 flow [2023-08-29 18:51:07,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 18:51:07,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 18:51:07,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3523 transitions. [2023-08-29 18:51:07,726 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5323360531882744 [2023-08-29 18:51:07,726 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3523 transitions. [2023-08-29 18:51:07,726 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3523 transitions. [2023-08-29 18:51:07,728 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:51:07,728 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3523 transitions. [2023-08-29 18:51:07,731 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 587.1666666666666) internal successors, (3523), 6 states have internal predecessors, (3523), 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 18:51:07,735 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1103.0) internal successors, (7721), 7 states have internal predecessors, (7721), 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 18:51:07,735 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1103.0) internal successors, (7721), 7 states have internal predecessors, (7721), 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 18:51:07,735 INFO L175 Difference]: Start difference. First operand has 202 places, 198 transitions, 575 flow. Second operand 6 states and 3523 transitions. [2023-08-29 18:51:07,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 340 transitions, 1443 flow [2023-08-29 18:51:08,762 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 340 transitions, 1433 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 18:51:08,765 INFO L231 Difference]: Finished difference. Result has 204 places, 196 transitions, 579 flow [2023-08-29 18:51:08,765 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1103, PETRI_DIFFERENCE_MINUEND_FLOW=569, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=196, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=579, PETRI_PLACES=204, PETRI_TRANSITIONS=196} [2023-08-29 18:51:08,765 INFO L281 CegarLoopForPetriNet]: 214 programPoint places, -10 predicate places. [2023-08-29 18:51:08,765 INFO L495 AbstractCegarLoop]: Abstraction has has 204 places, 196 transitions, 579 flow [2023-08-29 18:51:08,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 556.8333333333334) internal successors, (3341), 6 states have internal predecessors, (3341), 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 18:51:08,766 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:51:08,766 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:51:08,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-29 18:51:08,766 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 101 more)] === [2023-08-29 18:51:08,767 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:51:08,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1264685258, now seen corresponding path program 1 times [2023-08-29 18:51:08,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:51:08,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511496215] [2023-08-29 18:51:08,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:51:08,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:51:08,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:51:08,829 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 18:51:08,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:51:08,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511496215] [2023-08-29 18:51:08,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511496215] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:51:08,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:51:08,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 18:51:08,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649894558] [2023-08-29 18:51:08,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:51:08,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-29 18:51:08,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:51:08,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-29 18:51:08,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-29 18:51:08,969 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 566 out of 1103 [2023-08-29 18:51:08,970 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 196 transitions, 579 flow. Second operand has 5 states, 5 states have (on average 568.4) internal successors, (2842), 5 states have internal predecessors, (2842), 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 18:51:08,970 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:51:08,970 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 566 of 1103 [2023-08-29 18:51:08,970 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:51:18,329 INFO L130 PetriNetUnfolder]: 46830/118511 cut-off events. [2023-08-29 18:51:18,329 INFO L131 PetriNetUnfolder]: For 56736/56968 co-relation queries the response was YES. [2023-08-29 18:51:18,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 230479 conditions, 118511 events. 46830/118511 cut-off events. For 56736/56968 co-relation queries the response was YES. Maximal size of possible extension queue 2687. Compared 1518670 event pairs, 28579 based on Foata normal form. 1224/111492 useless extension candidates. Maximal degree in co-relation 230462. Up to 44537 conditions per place. [2023-08-29 18:51:19,445 INFO L137 encePairwiseOnDemand]: 1097/1103 looper letters, 205 selfloop transitions, 7 changer transitions 0/329 dead transitions. [2023-08-29 18:51:19,445 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 329 transitions, 1419 flow [2023-08-29 18:51:19,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-29 18:51:19,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-29 18:51:19,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 4151 transitions. [2023-08-29 18:51:19,452 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5376246600181324 [2023-08-29 18:51:19,452 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 4151 transitions. [2023-08-29 18:51:19,452 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 4151 transitions. [2023-08-29 18:51:19,454 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:51:19,454 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 4151 transitions. [2023-08-29 18:51:19,458 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 593.0) internal successors, (4151), 7 states have internal predecessors, (4151), 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 18:51:19,466 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 1103.0) internal successors, (8824), 8 states have internal predecessors, (8824), 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 18:51:19,466 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 1103.0) internal successors, (8824), 8 states have internal predecessors, (8824), 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 18:51:19,466 INFO L175 Difference]: Start difference. First operand has 204 places, 196 transitions, 579 flow. Second operand 7 states and 4151 transitions. [2023-08-29 18:51:19,466 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 329 transitions, 1419 flow [2023-08-29 18:51:20,124 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 329 transitions, 1409 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-29 18:51:20,126 INFO L231 Difference]: Finished difference. Result has 207 places, 198 transitions, 595 flow [2023-08-29 18:51:20,126 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1103, PETRI_DIFFERENCE_MINUEND_FLOW=569, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=196, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=595, PETRI_PLACES=207, PETRI_TRANSITIONS=198} [2023-08-29 18:51:20,127 INFO L281 CegarLoopForPetriNet]: 214 programPoint places, -7 predicate places. [2023-08-29 18:51:20,127 INFO L495 AbstractCegarLoop]: Abstraction has has 207 places, 198 transitions, 595 flow [2023-08-29 18:51:20,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 568.4) internal successors, (2842), 5 states have internal predecessors, (2842), 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 18:51:20,127 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:51:20,127 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:51:20,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-29 18:51:20,128 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 101 more)] === [2023-08-29 18:51:20,128 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:51:20,128 INFO L85 PathProgramCache]: Analyzing trace with hash -52568507, now seen corresponding path program 1 times [2023-08-29 18:51:20,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:51:20,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571865806] [2023-08-29 18:51:20,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:51:20,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:51:20,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:51:20,203 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-29 18:51:20,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:51:20,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571865806] [2023-08-29 18:51:20,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571865806] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:51:20,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:51:20,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-29 18:51:20,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198134675] [2023-08-29 18:51:20,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:51:20,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 18:51:20,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:51:20,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 18:51:20,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-29 18:51:20,463 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 558 out of 1103 [2023-08-29 18:51:20,464 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 198 transitions, 595 flow. Second operand has 6 states, 6 states have (on average 560.1666666666666) internal successors, (3361), 6 states have internal predecessors, (3361), 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 18:51:20,464 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:51:20,464 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 558 of 1103 [2023-08-29 18:51:20,464 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:51:31,694 INFO L130 PetriNetUnfolder]: 62561/145325 cut-off events. [2023-08-29 18:51:31,694 INFO L131 PetriNetUnfolder]: For 86435/87017 co-relation queries the response was YES. [2023-08-29 18:51:32,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 299921 conditions, 145325 events. 62561/145325 cut-off events. For 86435/87017 co-relation queries the response was YES. Maximal size of possible extension queue 3393. Compared 1824465 event pairs, 31916 based on Foata normal form. 1038/136133 useless extension candidates. Maximal degree in co-relation 299902. Up to 45751 conditions per place. [2023-08-29 18:51:33,054 INFO L137 encePairwiseOnDemand]: 1095/1103 looper letters, 248 selfloop transitions, 13 changer transitions 0/378 dead transitions. [2023-08-29 18:51:33,054 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 378 transitions, 1822 flow [2023-08-29 18:51:33,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-29 18:51:33,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-29 18:51:33,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 4104 transitions. [2023-08-29 18:51:33,059 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5315373656262142 [2023-08-29 18:51:33,060 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 4104 transitions. [2023-08-29 18:51:33,060 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 4104 transitions. [2023-08-29 18:51:33,060 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:51:33,061 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 4104 transitions. [2023-08-29 18:51:33,064 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 586.2857142857143) internal successors, (4104), 7 states have internal predecessors, (4104), 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 18:51:33,070 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 1103.0) internal successors, (8824), 8 states have internal predecessors, (8824), 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 18:51:33,070 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 1103.0) internal successors, (8824), 8 states have internal predecessors, (8824), 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 18:51:33,071 INFO L175 Difference]: Start difference. First operand has 207 places, 198 transitions, 595 flow. Second operand 7 states and 4104 transitions. [2023-08-29 18:51:33,071 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 378 transitions, 1822 flow [2023-08-29 18:51:33,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 378 transitions, 1818 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 18:51:33,920 INFO L231 Difference]: Finished difference. Result has 216 places, 205 transitions, 673 flow [2023-08-29 18:51:33,921 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1103, PETRI_DIFFERENCE_MINUEND_FLOW=591, PETRI_DIFFERENCE_MINUEND_PLACES=206, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=187, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=673, PETRI_PLACES=216, PETRI_TRANSITIONS=205} [2023-08-29 18:51:33,921 INFO L281 CegarLoopForPetriNet]: 214 programPoint places, 2 predicate places. [2023-08-29 18:51:33,921 INFO L495 AbstractCegarLoop]: Abstraction has has 216 places, 205 transitions, 673 flow [2023-08-29 18:51:33,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 560.1666666666666) internal successors, (3361), 6 states have internal predecessors, (3361), 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 18:51:33,922 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:51:33,922 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:51:33,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-29 18:51:33,922 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread3Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 101 more)] === [2023-08-29 18:51:33,922 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:51:33,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1478983578, now seen corresponding path program 1 times [2023-08-29 18:51:33,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:51:33,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386236323] [2023-08-29 18:51:33,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:51:33,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:51:33,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:51:34,111 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 18:51:34,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:51:34,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386236323] [2023-08-29 18:51:34,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386236323] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:51:34,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:51:34,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 18:51:34,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206013183] [2023-08-29 18:51:34,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:51:34,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 18:51:34,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:51:34,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 18:51:34,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-29 18:51:34,353 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 558 out of 1103 [2023-08-29 18:51:34,354 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 205 transitions, 673 flow. Second operand has 6 states, 6 states have (on average 560.6666666666666) internal successors, (3364), 6 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 18:51:34,354 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:51:34,354 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 558 of 1103 [2023-08-29 18:51:34,354 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand