./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/ldv-races/race-4_1-thread_local_vars.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffcf2c8b-301c-471e-9290-5715a940bd4f/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffcf2c8b-301c-471e-9290-5715a940bd4f/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffcf2c8b-301c-471e-9290-5715a940bd4f/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffcf2c8b-301c-471e-9290-5715a940bd4f/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-4_1-thread_local_vars.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffcf2c8b-301c-471e-9290-5715a940bd4f/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffcf2c8b-301c-471e-9290-5715a940bd4f/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --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 a9552a698db9701543deeff63aa990ab8fc4764b65dba5035623425bdf77554d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:47:11,542 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:47:11,620 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffcf2c8b-301c-471e-9290-5715a940bd4f/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-19 07:47:11,625 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:47:11,626 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:47:11,654 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:47:11,655 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:47:11,656 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:47:11,656 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:47:11,657 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:47:11,658 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:47:11,659 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:47:11,659 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:47:11,660 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:47:11,661 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:47:11,661 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:47:11,662 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:47:11,662 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:47:11,663 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:47:11,664 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:47:11,664 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:47:11,665 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:47:11,666 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-19 07:47:11,666 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:47:11,667 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:47:11,667 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:47:11,668 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:47:11,669 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:47:11,669 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:47:11,670 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:47:11,670 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:47:11,671 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:47:11,671 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:47:11,672 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:47:11,672 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:47:11,673 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:47:11,673 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:47:11,674 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:47:11,674 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:47:11,674 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:47:11,675 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:47:11,675 INFO L153 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffcf2c8b-301c-471e-9290-5715a940bd4f/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffcf2c8b-301c-471e-9290-5715a940bd4f/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a9552a698db9701543deeff63aa990ab8fc4764b65dba5035623425bdf77554d [2023-11-19 07:47:11,956 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:47:11,981 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:47:11,984 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:47:11,985 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:47:11,986 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:47:11,988 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffcf2c8b-301c-471e-9290-5715a940bd4f/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/ldv-races/race-4_1-thread_local_vars.i [2023-11-19 07:47:15,148 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:47:15,543 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:47:15,544 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffcf2c8b-301c-471e-9290-5715a940bd4f/sv-benchmarks/c/ldv-races/race-4_1-thread_local_vars.i [2023-11-19 07:47:15,595 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffcf2c8b-301c-471e-9290-5715a940bd4f/bin/uautomizer-verify-uCwYo4JHxu/data/15890705a/5bb8dfab59d5404cae4427cf40bb1105/FLAG7a069316c [2023-11-19 07:47:15,614 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffcf2c8b-301c-471e-9290-5715a940bd4f/bin/uautomizer-verify-uCwYo4JHxu/data/15890705a/5bb8dfab59d5404cae4427cf40bb1105 [2023-11-19 07:47:15,621 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:47:15,623 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:47:15,629 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:47:15,629 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:47:15,636 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:47:15,637 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:47:15" (1/1) ... [2023-11-19 07:47:15,640 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17a9f25d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:15, skipping insertion in model container [2023-11-19 07:47:15,640 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:47:15" (1/1) ... [2023-11-19 07:47:15,726 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:47:16,628 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:47:16,645 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:47:16,776 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:47:17,093 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:47:17,094 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:17 WrapperNode [2023-11-19 07:47:17,094 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:47:17,095 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:47:17,096 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:47:17,096 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:47:17,106 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:17" (1/1) ... [2023-11-19 07:47:17,142 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:17" (1/1) ... [2023-11-19 07:47:17,212 INFO L138 Inliner]: procedures = 486, calls = 44, calls flagged for inlining = 16, calls inlined = 21, statements flattened = 286 [2023-11-19 07:47:17,217 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:47:17,218 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:47:17,219 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:47:17,220 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:47:17,231 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:17" (1/1) ... [2023-11-19 07:47:17,232 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:17" (1/1) ... [2023-11-19 07:47:17,257 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:17" (1/1) ... [2023-11-19 07:47:17,271 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:17" (1/1) ... [2023-11-19 07:47:17,291 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:17" (1/1) ... [2023-11-19 07:47:17,305 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:17" (1/1) ... [2023-11-19 07:47:17,319 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:17" (1/1) ... [2023-11-19 07:47:17,322 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:17" (1/1) ... [2023-11-19 07:47:17,330 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:47:17,331 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:47:17,331 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:47:17,337 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:47:17,339 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:17" (1/1) ... [2023-11-19 07:47:17,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:47:17,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffcf2c8b-301c-471e-9290-5715a940bd4f/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:47:17,367 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffcf2c8b-301c-471e-9290-5715a940bd4f/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:47:17,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffcf2c8b-301c-471e-9290-5715a940bd4f/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:47:17,404 INFO L130 BoogieDeclarations]: Found specification of procedure thread_usb [2023-11-19 07:47:17,405 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_usb [2023-11-19 07:47:17,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:47:17,405 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:47:17,405 INFO L130 BoogieDeclarations]: Found specification of procedure thread_ath9k [2023-11-19 07:47:17,405 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_ath9k [2023-11-19 07:47:17,405 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-19 07:47:17,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:47:17,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 07:47:17,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:47:17,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:47:17,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:47:17,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:47:17,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:47:17,409 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 07:47:17,775 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:47:17,777 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:47:18,296 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:47:18,313 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:47:18,314 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 07:47:18,320 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:47:18 BoogieIcfgContainer [2023-11-19 07:47:18,321 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:47:18,324 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:47:18,324 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:47:18,328 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:47:18,328 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:47:15" (1/3) ... [2023-11-19 07:47:18,329 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@768103cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:47:18, skipping insertion in model container [2023-11-19 07:47:18,330 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:17" (2/3) ... [2023-11-19 07:47:18,330 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@768103cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:47:18, skipping insertion in model container [2023-11-19 07:47:18,330 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:47:18" (3/3) ... [2023-11-19 07:47:18,332 INFO L112 eAbstractionObserver]: Analyzing ICFG race-4_1-thread_local_vars.i [2023-11-19 07:47:18,342 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:47:18,355 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:47:18,355 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2023-11-19 07:47:18,355 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:47:18,509 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2023-11-19 07:47:18,562 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 439 places, 477 transitions, 981 flow [2023-11-19 07:47:18,757 INFO L124 PetriNetUnfolderBase]: 41/488 cut-off events. [2023-11-19 07:47:18,757 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-19 07:47:18,770 INFO L83 FinitePrefix]: Finished finitePrefix Result has 499 conditions, 488 events. 41/488 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1414 event pairs, 0 based on Foata normal form. 0/412 useless extension candidates. Maximal degree in co-relation 325. Up to 11 conditions per place. [2023-11-19 07:47:18,770 INFO L82 GeneralOperation]: Start removeDead. Operand has 439 places, 477 transitions, 981 flow [2023-11-19 07:47:18,788 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 309 places, 332 transitions, 680 flow [2023-11-19 07:47:18,799 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:47:18,815 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 309 places, 332 transitions, 680 flow [2023-11-19 07:47:18,819 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 309 places, 332 transitions, 680 flow [2023-11-19 07:47:18,820 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 309 places, 332 transitions, 680 flow [2023-11-19 07:47:18,924 INFO L124 PetriNetUnfolderBase]: 41/488 cut-off events. [2023-11-19 07:47:18,924 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-19 07:47:18,931 INFO L83 FinitePrefix]: Finished finitePrefix Result has 499 conditions, 488 events. 41/488 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1415 event pairs, 0 based on Foata normal form. 0/412 useless extension candidates. Maximal degree in co-relation 325. Up to 11 conditions per place. [2023-11-19 07:47:18,953 INFO L119 LiptonReduction]: Number of co-enabled transitions 20984 [2023-11-19 07:47:29,166 INFO L134 LiptonReduction]: Checked pairs total: 52854 [2023-11-19 07:47:29,166 INFO L136 LiptonReduction]: Total number of compositions: 417 [2023-11-19 07:47:29,190 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:47:29,198 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=LoopHeads, 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;@78e40272, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:47:29,199 INFO L358 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2023-11-19 07:47:29,201 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:47:29,201 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-19 07:47:29,201 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:47:29,201 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:47:29,202 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-19 07:47:29,204 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-19 07:47:29,209 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:29,209 INFO L85 PathProgramCache]: Analyzing trace with hash 1425, now seen corresponding path program 1 times [2023-11-19 07:47:29,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:29,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302414996] [2023-11-19 07:47:29,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:29,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:29,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:29,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:47:29,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:47:29,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302414996] [2023-11-19 07:47:29,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302414996] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:29,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:29,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-19 07:47:29,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315927803] [2023-11-19 07:47:29,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:29,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:47:29,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:47:29,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:47:29,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:47:29,502 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 439 out of 894 [2023-11-19 07:47:29,507 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 76 transitions, 168 flow. Second operand has 2 states, 2 states have (on average 439.5) internal successors, (879), 2 states have internal predecessors, (879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:29,507 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:47:29,507 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 439 of 894 [2023-11-19 07:47:29,508 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:47:29,795 INFO L124 PetriNetUnfolderBase]: 664/1355 cut-off events. [2023-11-19 07:47:29,796 INFO L125 PetriNetUnfolderBase]: For 25/25 co-relation queries the response was YES. [2023-11-19 07:47:29,798 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2359 conditions, 1355 events. 664/1355 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 8006 event pairs, 403 based on Foata normal form. 44/906 useless extension candidates. Maximal degree in co-relation 2166. Up to 976 conditions per place. [2023-11-19 07:47:29,810 INFO L140 encePairwiseOnDemand]: 879/894 looper letters, 33 selfloop transitions, 0 changer transitions 0/61 dead transitions. [2023-11-19 07:47:29,811 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 61 transitions, 204 flow [2023-11-19 07:47:29,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:47:29,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-19 07:47:29,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 926 transitions. [2023-11-19 07:47:29,837 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5178970917225951 [2023-11-19 07:47:29,838 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 926 transitions. [2023-11-19 07:47:29,838 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 926 transitions. [2023-11-19 07:47:29,843 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:47:29,846 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 926 transitions. [2023-11-19 07:47:29,854 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 463.0) internal successors, (926), 2 states have internal predecessors, (926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:29,865 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 894.0) internal successors, (2682), 3 states have internal predecessors, (2682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:29,867 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 894.0) internal successors, (2682), 3 states have internal predecessors, (2682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:29,870 INFO L175 Difference]: Start difference. First operand has 70 places, 76 transitions, 168 flow. Second operand 2 states and 926 transitions. [2023-11-19 07:47:29,871 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 61 transitions, 204 flow [2023-11-19 07:47:29,875 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 61 transitions, 200 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 07:47:29,878 INFO L231 Difference]: Finished difference. Result has 57 places, 61 transitions, 134 flow [2023-11-19 07:47:29,880 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=894, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=134, PETRI_PLACES=57, PETRI_TRANSITIONS=61} [2023-11-19 07:47:29,885 INFO L281 CegarLoopForPetriNet]: 70 programPoint places, -13 predicate places. [2023-11-19 07:47:29,886 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 61 transitions, 134 flow [2023-11-19 07:47:29,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 439.5) internal successors, (879), 2 states have internal predecessors, (879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:29,887 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:47:29,887 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 07:47:29,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:47:29,888 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread_usbErr9ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-19 07:47:29,888 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:29,888 INFO L85 PathProgramCache]: Analyzing trace with hash -684509565, now seen corresponding path program 1 times [2023-11-19 07:47:29,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:29,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853821027] [2023-11-19 07:47:29,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:29,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:29,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:30,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:47:30,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:47:30,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853821027] [2023-11-19 07:47:30,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853821027] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:30,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:30,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:47:30,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536434125] [2023-11-19 07:47:30,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:30,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:47:30,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:47:30,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:47:30,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:47:30,264 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 419 out of 894 [2023-11-19 07:47:30,266 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 61 transitions, 134 flow. Second operand has 3 states, 3 states have (on average 421.0) internal successors, (1263), 3 states have internal predecessors, (1263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:30,266 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:47:30,267 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 419 of 894 [2023-11-19 07:47:30,267 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:47:30,540 INFO L124 PetriNetUnfolderBase]: 958/1742 cut-off events. [2023-11-19 07:47:30,540 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-11-19 07:47:30,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3188 conditions, 1742 events. 958/1742 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 9533 event pairs, 501 based on Foata normal form. 0/1135 useless extension candidates. Maximal degree in co-relation 3184. Up to 1226 conditions per place. [2023-11-19 07:47:30,556 INFO L140 encePairwiseOnDemand]: 888/894 looper letters, 44 selfloop transitions, 5 changer transitions 0/73 dead transitions. [2023-11-19 07:47:30,556 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 73 transitions, 256 flow [2023-11-19 07:47:30,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:47:30,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:47:30,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1307 transitions. [2023-11-19 07:47:30,563 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4873228933631618 [2023-11-19 07:47:30,563 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1307 transitions. [2023-11-19 07:47:30,563 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1307 transitions. [2023-11-19 07:47:30,564 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:47:30,565 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1307 transitions. [2023-11-19 07:47:30,569 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 435.6666666666667) internal successors, (1307), 3 states have internal predecessors, (1307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:30,578 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 894.0) internal successors, (3576), 4 states have internal predecessors, (3576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:30,581 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 894.0) internal successors, (3576), 4 states have internal predecessors, (3576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:30,584 INFO L175 Difference]: Start difference. First operand has 57 places, 61 transitions, 134 flow. Second operand 3 states and 1307 transitions. [2023-11-19 07:47:30,584 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 73 transitions, 256 flow [2023-11-19 07:47:30,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 73 transitions, 256 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:47:30,590 INFO L231 Difference]: Finished difference. Result has 61 places, 65 transitions, 172 flow [2023-11-19 07:47:30,590 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=894, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=172, PETRI_PLACES=61, PETRI_TRANSITIONS=65} [2023-11-19 07:47:30,593 INFO L281 CegarLoopForPetriNet]: 70 programPoint places, -9 predicate places. [2023-11-19 07:47:30,594 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 65 transitions, 172 flow [2023-11-19 07:47:30,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 421.0) internal successors, (1263), 3 states have internal predecessors, (1263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:30,596 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:47:30,601 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:30,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:47:30,603 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-19 07:47:30,604 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:30,604 INFO L85 PathProgramCache]: Analyzing trace with hash 725863041, now seen corresponding path program 1 times [2023-11-19 07:47:30,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:30,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061673573] [2023-11-19 07:47:30,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:30,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:30,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:30,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:47:30,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:47:30,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061673573] [2023-11-19 07:47:30,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061673573] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:30,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:30,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:47:30,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644220589] [2023-11-19 07:47:30,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:30,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:47:30,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:47:30,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:47:30,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:47:30,763 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 433 out of 894 [2023-11-19 07:47:30,765 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 65 transitions, 172 flow. Second operand has 3 states, 3 states have (on average 433.6666666666667) internal successors, (1301), 3 states have internal predecessors, (1301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:30,765 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:47:30,766 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 433 of 894 [2023-11-19 07:47:30,766 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:47:31,035 INFO L124 PetriNetUnfolderBase]: 761/1532 cut-off events. [2023-11-19 07:47:31,036 INFO L125 PetriNetUnfolderBase]: For 198/209 co-relation queries the response was YES. [2023-11-19 07:47:31,040 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2982 conditions, 1532 events. 761/1532 cut-off events. For 198/209 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 9207 event pairs, 436 based on Foata normal form. 0/1010 useless extension candidates. Maximal degree in co-relation 2976. Up to 1095 conditions per place. [2023-11-19 07:47:31,050 INFO L140 encePairwiseOnDemand]: 891/894 looper letters, 34 selfloop transitions, 0 changer transitions 2/66 dead transitions. [2023-11-19 07:47:31,051 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 66 transitions, 246 flow [2023-11-19 07:47:31,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:47:31,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:47:31,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1334 transitions. [2023-11-19 07:47:31,056 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49739000745712153 [2023-11-19 07:47:31,056 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1334 transitions. [2023-11-19 07:47:31,057 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1334 transitions. [2023-11-19 07:47:31,058 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:47:31,058 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1334 transitions. [2023-11-19 07:47:31,063 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 444.6666666666667) internal successors, (1334), 3 states have internal predecessors, (1334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:31,070 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 894.0) internal successors, (3576), 4 states have internal predecessors, (3576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:31,073 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 894.0) internal successors, (3576), 4 states have internal predecessors, (3576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:31,074 INFO L175 Difference]: Start difference. First operand has 61 places, 65 transitions, 172 flow. Second operand 3 states and 1334 transitions. [2023-11-19 07:47:31,074 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 66 transitions, 246 flow [2023-11-19 07:47:31,082 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 66 transitions, 236 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 07:47:31,084 INFO L231 Difference]: Finished difference. Result has 62 places, 64 transitions, 164 flow [2023-11-19 07:47:31,085 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=894, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=164, PETRI_PLACES=62, PETRI_TRANSITIONS=64} [2023-11-19 07:47:31,086 INFO L281 CegarLoopForPetriNet]: 70 programPoint places, -8 predicate places. [2023-11-19 07:47:31,090 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 64 transitions, 164 flow [2023-11-19 07:47:31,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 433.6666666666667) internal successors, (1301), 3 states have internal predecessors, (1301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:31,092 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:47:31,092 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:31,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:47:31,092 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread_usbErr10ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-19 07:47:31,093 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:31,093 INFO L85 PathProgramCache]: Analyzing trace with hash -683662134, now seen corresponding path program 1 times [2023-11-19 07:47:31,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:31,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129420595] [2023-11-19 07:47:31,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:31,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:31,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:31,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:47:31,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:47:31,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129420595] [2023-11-19 07:47:31,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129420595] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:31,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:31,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:47:31,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457263293] [2023-11-19 07:47:31,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:31,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:47:31,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:47:31,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:47:31,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:47:31,251 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 407 out of 894 [2023-11-19 07:47:31,253 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 64 transitions, 164 flow. Second operand has 3 states, 3 states have (on average 409.3333333333333) internal successors, (1228), 3 states have internal predecessors, (1228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:31,254 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:47:31,254 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 407 of 894 [2023-11-19 07:47:31,254 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:47:31,618 INFO L124 PetriNetUnfolderBase]: 1185/2065 cut-off events. [2023-11-19 07:47:31,618 INFO L125 PetriNetUnfolderBase]: For 289/345 co-relation queries the response was YES. [2023-11-19 07:47:31,623 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4529 conditions, 2065 events. 1185/2065 cut-off events. For 289/345 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 10926 event pairs, 507 based on Foata normal form. 13/1461 useless extension candidates. Maximal degree in co-relation 4522. Up to 1361 conditions per place. [2023-11-19 07:47:31,638 INFO L140 encePairwiseOnDemand]: 881/894 looper letters, 62 selfloop transitions, 13 changer transitions 0/96 dead transitions. [2023-11-19 07:47:31,638 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 96 transitions, 395 flow [2023-11-19 07:47:31,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:47:31,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:47:31,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1294 transitions. [2023-11-19 07:47:31,644 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.482475764354959 [2023-11-19 07:47:31,644 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1294 transitions. [2023-11-19 07:47:31,644 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1294 transitions. [2023-11-19 07:47:31,646 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:47:31,646 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1294 transitions. [2023-11-19 07:47:31,650 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 431.3333333333333) internal successors, (1294), 3 states have internal predecessors, (1294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:31,658 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 894.0) internal successors, (3576), 4 states have internal predecessors, (3576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:31,660 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 894.0) internal successors, (3576), 4 states have internal predecessors, (3576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:31,661 INFO L175 Difference]: Start difference. First operand has 62 places, 64 transitions, 164 flow. Second operand 3 states and 1294 transitions. [2023-11-19 07:47:31,661 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 96 transitions, 395 flow [2023-11-19 07:47:31,664 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 96 transitions, 387 flow, removed 4 selfloop flow, removed 1 redundant places. [2023-11-19 07:47:31,666 INFO L231 Difference]: Finished difference. Result has 64 places, 75 transitions, 274 flow [2023-11-19 07:47:31,667 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=894, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=274, PETRI_PLACES=64, PETRI_TRANSITIONS=75} [2023-11-19 07:47:31,668 INFO L281 CegarLoopForPetriNet]: 70 programPoint places, -6 predicate places. [2023-11-19 07:47:31,668 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 75 transitions, 274 flow [2023-11-19 07:47:31,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 409.3333333333333) internal successors, (1228), 3 states have internal predecessors, (1228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:31,670 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:47:31,670 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:31,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:47:31,670 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread_usbErr4ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-19 07:47:31,671 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:31,671 INFO L85 PathProgramCache]: Analyzing trace with hash 694555227, now seen corresponding path program 1 times [2023-11-19 07:47:31,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:31,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936600217] [2023-11-19 07:47:31,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:31,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:31,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:31,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:47:31,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:47:31,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936600217] [2023-11-19 07:47:31,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936600217] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:31,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:31,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:47:31,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32075980] [2023-11-19 07:47:31,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:31,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:47:31,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:47:31,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:47:31,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:47:31,817 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 423 out of 894 [2023-11-19 07:47:31,821 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 75 transitions, 274 flow. Second operand has 3 states, 3 states have (on average 424.6666666666667) internal successors, (1274), 3 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:31,821 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:47:31,821 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 423 of 894 [2023-11-19 07:47:31,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:47:32,125 INFO L124 PetriNetUnfolderBase]: 972/1851 cut-off events. [2023-11-19 07:47:32,126 INFO L125 PetriNetUnfolderBase]: For 1070/1121 co-relation queries the response was YES. [2023-11-19 07:47:32,131 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4270 conditions, 1851 events. 972/1851 cut-off events. For 1070/1121 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 10771 event pairs, 387 based on Foata normal form. 12/1315 useless extension candidates. Maximal degree in co-relation 4262. Up to 1068 conditions per place. [2023-11-19 07:47:32,144 INFO L140 encePairwiseOnDemand]: 887/894 looper letters, 47 selfloop transitions, 6 changer transitions 0/88 dead transitions. [2023-11-19 07:47:32,144 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 88 transitions, 412 flow [2023-11-19 07:47:32,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:47:32,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:47:32,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1315 transitions. [2023-11-19 07:47:32,150 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49030574198359433 [2023-11-19 07:47:32,150 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1315 transitions. [2023-11-19 07:47:32,150 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1315 transitions. [2023-11-19 07:47:32,152 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:47:32,152 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1315 transitions. [2023-11-19 07:47:32,156 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 438.3333333333333) internal successors, (1315), 3 states have internal predecessors, (1315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:32,163 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 894.0) internal successors, (3576), 4 states have internal predecessors, (3576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:32,166 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 894.0) internal successors, (3576), 4 states have internal predecessors, (3576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:32,166 INFO L175 Difference]: Start difference. First operand has 64 places, 75 transitions, 274 flow. Second operand 3 states and 1315 transitions. [2023-11-19 07:47:32,166 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 88 transitions, 412 flow [2023-11-19 07:47:32,170 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 88 transitions, 384 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 07:47:32,173 INFO L231 Difference]: Finished difference. Result has 66 places, 78 transitions, 286 flow [2023-11-19 07:47:32,174 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=894, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=286, PETRI_PLACES=66, PETRI_TRANSITIONS=78} [2023-11-19 07:47:32,176 INFO L281 CegarLoopForPetriNet]: 70 programPoint places, -4 predicate places. [2023-11-19 07:47:32,176 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 78 transitions, 286 flow [2023-11-19 07:47:32,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 424.6666666666667) internal successors, (1274), 3 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:32,178 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:47:32,178 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:32,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:47:32,178 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread_usbThread1of1ForFork1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-19 07:47:32,179 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:32,179 INFO L85 PathProgramCache]: Analyzing trace with hash 151103783, now seen corresponding path program 1 times [2023-11-19 07:47:32,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:32,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505024740] [2023-11-19 07:47:32,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:32,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:32,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:32,305 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:47:32,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:47:32,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505024740] [2023-11-19 07:47:32,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505024740] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:32,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:32,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:47:32,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032781246] [2023-11-19 07:47:32,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:32,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:47:32,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:47:32,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:47:32,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:47:32,331 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 425 out of 894 [2023-11-19 07:47:32,333 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 78 transitions, 286 flow. Second operand has 3 states, 3 states have (on average 427.6666666666667) internal successors, (1283), 3 states have internal predecessors, (1283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:32,334 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:47:32,334 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 425 of 894 [2023-11-19 07:47:32,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:47:32,648 INFO L124 PetriNetUnfolderBase]: 858/1689 cut-off events. [2023-11-19 07:47:32,648 INFO L125 PetriNetUnfolderBase]: For 647/698 co-relation queries the response was YES. [2023-11-19 07:47:32,653 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3815 conditions, 1689 events. 858/1689 cut-off events. For 647/698 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 9915 event pairs, 349 based on Foata normal form. 40/1337 useless extension candidates. Maximal degree in co-relation 3806. Up to 931 conditions per place. [2023-11-19 07:47:32,665 INFO L140 encePairwiseOnDemand]: 889/894 looper letters, 48 selfloop transitions, 2 changer transitions 0/84 dead transitions. [2023-11-19 07:47:32,665 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 84 transitions, 389 flow [2023-11-19 07:47:32,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:47:32,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:47:32,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1320 transitions. [2023-11-19 07:47:32,672 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49217002237136465 [2023-11-19 07:47:32,672 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1320 transitions. [2023-11-19 07:47:32,672 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1320 transitions. [2023-11-19 07:47:32,674 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:47:32,674 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1320 transitions. [2023-11-19 07:47:32,679 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 440.0) internal successors, (1320), 3 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:32,687 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 894.0) internal successors, (3576), 4 states have internal predecessors, (3576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:32,692 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 894.0) internal successors, (3576), 4 states have internal predecessors, (3576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:32,692 INFO L175 Difference]: Start difference. First operand has 66 places, 78 transitions, 286 flow. Second operand 3 states and 1320 transitions. [2023-11-19 07:47:32,692 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 84 transitions, 389 flow [2023-11-19 07:47:32,695 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 84 transitions, 377 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-19 07:47:32,701 INFO L231 Difference]: Finished difference. Result has 63 places, 74 transitions, 257 flow [2023-11-19 07:47:32,701 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=894, PETRI_DIFFERENCE_MINUEND_FLOW=253, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=257, PETRI_PLACES=63, PETRI_TRANSITIONS=74} [2023-11-19 07:47:32,703 INFO L281 CegarLoopForPetriNet]: 70 programPoint places, -7 predicate places. [2023-11-19 07:47:32,704 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 74 transitions, 257 flow [2023-11-19 07:47:32,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 427.6666666666667) internal successors, (1283), 3 states have internal predecessors, (1283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:32,705 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:47:32,705 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:32,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 07:47:32,706 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-19 07:47:32,706 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:32,706 INFO L85 PathProgramCache]: Analyzing trace with hash 133796121, now seen corresponding path program 1 times [2023-11-19 07:47:32,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:32,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940843343] [2023-11-19 07:47:32,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:32,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:32,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:32,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:47:32,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:47:32,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940843343] [2023-11-19 07:47:32,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940843343] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:32,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:32,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:47:32,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573959628] [2023-11-19 07:47:32,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:32,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:47:32,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:47:32,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:47:32,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:47:32,876 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 417 out of 894 [2023-11-19 07:47:32,879 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 74 transitions, 257 flow. Second operand has 3 states, 3 states have (on average 419.6666666666667) internal successors, (1259), 3 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:32,879 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:47:32,879 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 417 of 894 [2023-11-19 07:47:32,879 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:47:33,170 INFO L124 PetriNetUnfolderBase]: 958/1777 cut-off events. [2023-11-19 07:47:33,170 INFO L125 PetriNetUnfolderBase]: For 788/863 co-relation queries the response was YES. [2023-11-19 07:47:33,175 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4205 conditions, 1777 events. 958/1777 cut-off events. For 788/863 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 9870 event pairs, 476 based on Foata normal form. 30/1399 useless extension candidates. Maximal degree in co-relation 4197. Up to 1301 conditions per place. [2023-11-19 07:47:33,187 INFO L140 encePairwiseOnDemand]: 887/894 looper letters, 55 selfloop transitions, 11 changer transitions 0/94 dead transitions. [2023-11-19 07:47:33,188 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 94 transitions, 454 flow [2023-11-19 07:47:33,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:47:33,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:47:33,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1305 transitions. [2023-11-19 07:47:33,195 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4865771812080537 [2023-11-19 07:47:33,195 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1305 transitions. [2023-11-19 07:47:33,195 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1305 transitions. [2023-11-19 07:47:33,196 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:47:33,196 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1305 transitions. [2023-11-19 07:47:33,200 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 435.0) internal successors, (1305), 3 states have internal predecessors, (1305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:33,207 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 894.0) internal successors, (3576), 4 states have internal predecessors, (3576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:33,208 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 894.0) internal successors, (3576), 4 states have internal predecessors, (3576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:33,209 INFO L175 Difference]: Start difference. First operand has 63 places, 74 transitions, 257 flow. Second operand 3 states and 1305 transitions. [2023-11-19 07:47:33,209 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 94 transitions, 454 flow [2023-11-19 07:47:33,211 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 94 transitions, 448 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 07:47:33,213 INFO L231 Difference]: Finished difference. Result has 64 places, 81 transitions, 334 flow [2023-11-19 07:47:33,214 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=894, PETRI_DIFFERENCE_MINUEND_FLOW=253, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=334, PETRI_PLACES=64, PETRI_TRANSITIONS=81} [2023-11-19 07:47:33,216 INFO L281 CegarLoopForPetriNet]: 70 programPoint places, -6 predicate places. [2023-11-19 07:47:33,216 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 81 transitions, 334 flow [2023-11-19 07:47:33,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 419.6666666666667) internal successors, (1259), 3 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:33,217 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:47:33,217 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:33,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 07:47:33,218 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-19 07:47:33,218 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:33,218 INFO L85 PathProgramCache]: Analyzing trace with hash -101721307, now seen corresponding path program 1 times [2023-11-19 07:47:33,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:33,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158085543] [2023-11-19 07:47:33,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:33,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:33,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:33,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:47:33,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:47:33,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158085543] [2023-11-19 07:47:33,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158085543] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:33,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:33,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:47:33,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830884873] [2023-11-19 07:47:33,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:33,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:47:33,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:47:33,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:47:33,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:47:33,866 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 432 out of 894 [2023-11-19 07:47:33,870 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 81 transitions, 334 flow. Second operand has 6 states, 6 states have (on average 433.5) internal successors, (2601), 6 states have internal predecessors, (2601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:33,870 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:47:33,870 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 432 of 894 [2023-11-19 07:47:33,870 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:47:34,510 INFO L124 PetriNetUnfolderBase]: 2038/3376 cut-off events. [2023-11-19 07:47:34,510 INFO L125 PetriNetUnfolderBase]: For 3423/3737 co-relation queries the response was YES. [2023-11-19 07:47:34,518 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8627 conditions, 3376 events. 2038/3376 cut-off events. For 3423/3737 co-relation queries the response was YES. Maximal size of possible extension queue 174. Compared 19130 event pairs, 451 based on Foata normal form. 43/2732 useless extension candidates. Maximal degree in co-relation 8618. Up to 1141 conditions per place. [2023-11-19 07:47:34,536 INFO L140 encePairwiseOnDemand]: 889/894 looper letters, 178 selfloop transitions, 4 changer transitions 0/212 dead transitions. [2023-11-19 07:47:34,537 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 212 transitions, 1328 flow [2023-11-19 07:47:34,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:47:34,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:47:34,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2722 transitions. [2023-11-19 07:47:34,546 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5074571215510812 [2023-11-19 07:47:34,546 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2722 transitions. [2023-11-19 07:47:34,546 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2722 transitions. [2023-11-19 07:47:34,548 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:47:34,549 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2722 transitions. [2023-11-19 07:47:34,556 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 453.6666666666667) internal successors, (2722), 6 states have internal predecessors, (2722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:34,568 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 894.0) internal successors, (6258), 7 states have internal predecessors, (6258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:34,570 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 894.0) internal successors, (6258), 7 states have internal predecessors, (6258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:34,571 INFO L175 Difference]: Start difference. First operand has 64 places, 81 transitions, 334 flow. Second operand 6 states and 2722 transitions. [2023-11-19 07:47:34,571 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 212 transitions, 1328 flow [2023-11-19 07:47:34,575 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 212 transitions, 1289 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:47:34,578 INFO L231 Difference]: Finished difference. Result has 67 places, 80 transitions, 329 flow [2023-11-19 07:47:34,579 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=894, PETRI_DIFFERENCE_MINUEND_FLOW=321, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=329, PETRI_PLACES=67, PETRI_TRANSITIONS=80} [2023-11-19 07:47:34,579 INFO L281 CegarLoopForPetriNet]: 70 programPoint places, -3 predicate places. [2023-11-19 07:47:34,579 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 80 transitions, 329 flow [2023-11-19 07:47:34,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 433.5) internal successors, (2601), 6 states have internal predecessors, (2601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:34,581 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:47:34,581 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:34,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-19 07:47:34,582 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread_usbErr4ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-19 07:47:34,582 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:34,582 INFO L85 PathProgramCache]: Analyzing trace with hash 654109025, now seen corresponding path program 1 times [2023-11-19 07:47:34,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:34,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770072226] [2023-11-19 07:47:34,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:34,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:34,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:34,673 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:47:34,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:47:34,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770072226] [2023-11-19 07:47:34,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770072226] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:34,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:34,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:47:34,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903568282] [2023-11-19 07:47:34,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:34,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:47:34,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:47:34,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:47:34,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:47:34,682 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 437 out of 894 [2023-11-19 07:47:34,684 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 80 transitions, 329 flow. Second operand has 3 states, 3 states have (on average 439.3333333333333) internal successors, (1318), 3 states have internal predecessors, (1318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:34,684 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:47:34,684 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 437 of 894 [2023-11-19 07:47:34,684 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:47:34,890 INFO L124 PetriNetUnfolderBase]: 844/1649 cut-off events. [2023-11-19 07:47:34,891 INFO L125 PetriNetUnfolderBase]: For 964/1030 co-relation queries the response was YES. [2023-11-19 07:47:34,896 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4033 conditions, 1649 events. 844/1649 cut-off events. For 964/1030 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 9575 event pairs, 455 based on Foata normal form. 16/1295 useless extension candidates. Maximal degree in co-relation 4024. Up to 1203 conditions per place. [2023-11-19 07:47:34,903 INFO L140 encePairwiseOnDemand]: 891/894 looper letters, 46 selfloop transitions, 2 changer transitions 1/84 dead transitions. [2023-11-19 07:47:34,904 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 84 transitions, 435 flow [2023-11-19 07:47:34,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:47:34,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:47:34,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1348 transitions. [2023-11-19 07:47:34,909 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5026099925428784 [2023-11-19 07:47:34,909 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1348 transitions. [2023-11-19 07:47:34,910 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1348 transitions. [2023-11-19 07:47:34,911 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:47:34,911 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1348 transitions. [2023-11-19 07:47:34,914 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 449.3333333333333) internal successors, (1348), 3 states have internal predecessors, (1348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:34,920 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 894.0) internal successors, (3576), 4 states have internal predecessors, (3576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:34,921 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 894.0) internal successors, (3576), 4 states have internal predecessors, (3576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:34,921 INFO L175 Difference]: Start difference. First operand has 67 places, 80 transitions, 329 flow. Second operand 3 states and 1348 transitions. [2023-11-19 07:47:34,921 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 84 transitions, 435 flow [2023-11-19 07:47:34,924 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 84 transitions, 428 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-19 07:47:34,925 INFO L231 Difference]: Finished difference. Result has 66 places, 81 transitions, 334 flow [2023-11-19 07:47:34,926 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=894, PETRI_DIFFERENCE_MINUEND_FLOW=322, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=334, PETRI_PLACES=66, PETRI_TRANSITIONS=81} [2023-11-19 07:47:34,926 INFO L281 CegarLoopForPetriNet]: 70 programPoint places, -4 predicate places. [2023-11-19 07:47:34,926 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 81 transitions, 334 flow [2023-11-19 07:47:34,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 439.3333333333333) internal successors, (1318), 3 states have internal predecessors, (1318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:34,927 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:47:34,927 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:34,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-19 07:47:34,928 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread_usbErr9ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-19 07:47:34,928 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:34,928 INFO L85 PathProgramCache]: Analyzing trace with hash 429849560, now seen corresponding path program 1 times [2023-11-19 07:47:34,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:34,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859661712] [2023-11-19 07:47:34,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:34,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:34,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:35,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:47:35,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:47:35,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859661712] [2023-11-19 07:47:35,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859661712] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:35,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:35,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:47:35,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018888129] [2023-11-19 07:47:35,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:35,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:47:35,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:47:35,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:47:35,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:47:35,030 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 437 out of 894 [2023-11-19 07:47:35,032 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 81 transitions, 334 flow. Second operand has 3 states, 3 states have (on average 440.3333333333333) internal successors, (1321), 3 states have internal predecessors, (1321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:35,032 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:47:35,032 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 437 of 894 [2023-11-19 07:47:35,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:47:35,155 INFO L124 PetriNetUnfolderBase]: 299/650 cut-off events. [2023-11-19 07:47:35,155 INFO L125 PetriNetUnfolderBase]: For 239/242 co-relation queries the response was YES. [2023-11-19 07:47:35,157 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1377 conditions, 650 events. 299/650 cut-off events. For 239/242 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 3343 event pairs, 149 based on Foata normal form. 24/527 useless extension candidates. Maximal degree in co-relation 1367. Up to 383 conditions per place. [2023-11-19 07:47:35,160 INFO L140 encePairwiseOnDemand]: 891/894 looper letters, 37 selfloop transitions, 2 changer transitions 4/62 dead transitions. [2023-11-19 07:47:35,160 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 62 transitions, 282 flow [2023-11-19 07:47:35,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:47:35,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:47:35,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1353 transitions. [2023-11-19 07:47:35,165 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5044742729306487 [2023-11-19 07:47:35,166 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1353 transitions. [2023-11-19 07:47:35,166 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1353 transitions. [2023-11-19 07:47:35,167 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:47:35,167 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1353 transitions. [2023-11-19 07:47:35,171 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 451.0) internal successors, (1353), 3 states have internal predecessors, (1353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:35,177 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 894.0) internal successors, (3576), 4 states have internal predecessors, (3576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:35,178 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 894.0) internal successors, (3576), 4 states have internal predecessors, (3576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:35,179 INFO L175 Difference]: Start difference. First operand has 66 places, 81 transitions, 334 flow. Second operand 3 states and 1353 transitions. [2023-11-19 07:47:35,179 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 62 transitions, 282 flow [2023-11-19 07:47:35,181 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 62 transitions, 232 flow, removed 10 selfloop flow, removed 7 redundant places. [2023-11-19 07:47:35,182 INFO L231 Difference]: Finished difference. Result has 56 places, 49 transitions, 128 flow [2023-11-19 07:47:35,182 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=894, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=128, PETRI_PLACES=56, PETRI_TRANSITIONS=49} [2023-11-19 07:47:35,183 INFO L281 CegarLoopForPetriNet]: 70 programPoint places, -14 predicate places. [2023-11-19 07:47:35,183 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 49 transitions, 128 flow [2023-11-19 07:47:35,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 440.3333333333333) internal successors, (1321), 3 states have internal predecessors, (1321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:35,184 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:47:35,184 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:35,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-19 07:47:35,184 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread_usbErr4ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-19 07:47:35,185 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:35,185 INFO L85 PathProgramCache]: Analyzing trace with hash 320961485, now seen corresponding path program 1 times [2023-11-19 07:47:35,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:35,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043111014] [2023-11-19 07:47:35,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:35,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:35,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:35,527 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 07:47:35,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:47:35,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043111014] [2023-11-19 07:47:35,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043111014] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:35,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:35,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:47:35,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337119645] [2023-11-19 07:47:35,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:35,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:47:35,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:47:35,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:47:35,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:47:35,678 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 426 out of 894 [2023-11-19 07:47:35,681 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 49 transitions, 128 flow. Second operand has 6 states, 6 states have (on average 428.1666666666667) internal successors, (2569), 6 states have internal predecessors, (2569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:35,681 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:47:35,681 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 426 of 894 [2023-11-19 07:47:35,681 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:47:35,993 INFO L124 PetriNetUnfolderBase]: 931/1478 cut-off events. [2023-11-19 07:47:35,993 INFO L125 PetriNetUnfolderBase]: For 188/191 co-relation queries the response was YES. [2023-11-19 07:47:35,997 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3152 conditions, 1478 events. 931/1478 cut-off events. For 188/191 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 6032 event pairs, 262 based on Foata normal form. 0/1112 useless extension candidates. Maximal degree in co-relation 3145. Up to 781 conditions per place. [2023-11-19 07:47:36,001 INFO L140 encePairwiseOnDemand]: 889/894 looper letters, 79 selfloop transitions, 4 changer transitions 5/102 dead transitions. [2023-11-19 07:47:36,002 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 102 transitions, 432 flow [2023-11-19 07:47:36,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:47:36,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:47:36,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2645 transitions. [2023-11-19 07:47:36,011 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4931021625652498 [2023-11-19 07:47:36,012 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2645 transitions. [2023-11-19 07:47:36,012 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2645 transitions. [2023-11-19 07:47:36,014 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:47:36,014 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2645 transitions. [2023-11-19 07:47:36,021 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 440.8333333333333) internal successors, (2645), 6 states have internal predecessors, (2645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:36,031 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 894.0) internal successors, (6258), 7 states have internal predecessors, (6258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:36,034 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 894.0) internal successors, (6258), 7 states have internal predecessors, (6258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:36,034 INFO L175 Difference]: Start difference. First operand has 56 places, 49 transitions, 128 flow. Second operand 6 states and 2645 transitions. [2023-11-19 07:47:36,034 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 102 transitions, 432 flow [2023-11-19 07:47:36,036 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 102 transitions, 412 flow, removed 2 selfloop flow, removed 3 redundant places. [2023-11-19 07:47:36,037 INFO L231 Difference]: Finished difference. Result has 58 places, 51 transitions, 145 flow [2023-11-19 07:47:36,038 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=894, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=145, PETRI_PLACES=58, PETRI_TRANSITIONS=51} [2023-11-19 07:47:36,038 INFO L281 CegarLoopForPetriNet]: 70 programPoint places, -12 predicate places. [2023-11-19 07:47:36,038 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 51 transitions, 145 flow [2023-11-19 07:47:36,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 428.1666666666667) internal successors, (2569), 6 states have internal predecessors, (2569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:36,039 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:47:36,040 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] [2023-11-19 07:47:36,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-19 07:47:36,040 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-19 07:47:36,040 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:36,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1883955596, now seen corresponding path program 1 times [2023-11-19 07:47:36,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:36,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196959730] [2023-11-19 07:47:36,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:36,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:36,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:36,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:47:36,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:47:36,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196959730] [2023-11-19 07:47:36,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196959730] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:36,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:36,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:47:36,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990405369] [2023-11-19 07:47:36,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:36,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:47:36,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:47:36,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:47:36,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:47:36,213 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 417 out of 894 [2023-11-19 07:47:36,215 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 51 transitions, 145 flow. Second operand has 3 states, 3 states have (on average 421.3333333333333) internal successors, (1264), 3 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:36,215 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:47:36,215 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 417 of 894 [2023-11-19 07:47:36,215 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:47:36,366 INFO L124 PetriNetUnfolderBase]: 487/944 cut-off events. [2023-11-19 07:47:36,367 INFO L125 PetriNetUnfolderBase]: For 90/93 co-relation queries the response was YES. [2023-11-19 07:47:36,370 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2033 conditions, 944 events. 487/944 cut-off events. For 90/93 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 4117 event pairs, 304 based on Foata normal form. 2/823 useless extension candidates. Maximal degree in co-relation 2024. Up to 727 conditions per place. [2023-11-19 07:47:36,371 INFO L140 encePairwiseOnDemand]: 892/894 looper letters, 0 selfloop transitions, 0 changer transitions 50/50 dead transitions. [2023-11-19 07:47:36,371 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 50 transitions, 207 flow [2023-11-19 07:47:36,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:47:36,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:47:36,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1283 transitions. [2023-11-19 07:47:36,377 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4783743475018643 [2023-11-19 07:47:36,377 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1283 transitions. [2023-11-19 07:47:36,377 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1283 transitions. [2023-11-19 07:47:36,379 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:47:36,379 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1283 transitions. [2023-11-19 07:47:36,382 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 427.6666666666667) internal successors, (1283), 3 states have internal predecessors, (1283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:36,390 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 894.0) internal successors, (3576), 4 states have internal predecessors, (3576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:36,391 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 894.0) internal successors, (3576), 4 states have internal predecessors, (3576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:36,392 INFO L175 Difference]: Start difference. First operand has 58 places, 51 transitions, 145 flow. Second operand 3 states and 1283 transitions. [2023-11-19 07:47:36,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 50 transitions, 207 flow [2023-11-19 07:47:36,394 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 50 transitions, 207 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:47:36,394 INFO L231 Difference]: Finished difference. Result has 58 places, 0 transitions, 0 flow [2023-11-19 07:47:36,394 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=894, PETRI_DIFFERENCE_MINUEND_FLOW=143, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=58, PETRI_TRANSITIONS=0} [2023-11-19 07:47:36,395 INFO L281 CegarLoopForPetriNet]: 70 programPoint places, -12 predicate places. [2023-11-19 07:47:36,396 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 0 transitions, 0 flow [2023-11-19 07:47:36,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 421.3333333333333) internal successors, (1264), 3 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:36,399 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE (35 of 36 remaining) [2023-11-19 07:47:36,399 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE (34 of 36 remaining) [2023-11-19 07:47:36,400 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (33 of 36 remaining) [2023-11-19 07:47:36,400 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (32 of 36 remaining) [2023-11-19 07:47:36,400 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (31 of 36 remaining) [2023-11-19 07:47:36,400 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (30 of 36 remaining) [2023-11-19 07:47:36,401 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (29 of 36 remaining) [2023-11-19 07:47:36,401 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (28 of 36 remaining) [2023-11-19 07:47:36,401 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (27 of 36 remaining) [2023-11-19 07:47:36,401 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (26 of 36 remaining) [2023-11-19 07:47:36,401 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0ASSERT_VIOLATIONDATA_RACE (25 of 36 remaining) [2023-11-19 07:47:36,401 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr9ASSERT_VIOLATIONDATA_RACE (24 of 36 remaining) [2023-11-19 07:47:36,402 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1ASSERT_VIOLATIONDATA_RACE (23 of 36 remaining) [2023-11-19 07:47:36,402 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr10ASSERT_VIOLATIONDATA_RACE (22 of 36 remaining) [2023-11-19 07:47:36,402 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr3ASSERT_VIOLATIONDATA_RACE (21 of 36 remaining) [2023-11-19 07:47:36,402 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr8ASSERT_VIOLATIONDATA_RACE (20 of 36 remaining) [2023-11-19 07:47:36,402 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr4ASSERT_VIOLATIONDATA_RACE (19 of 36 remaining) [2023-11-19 07:47:36,403 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr5ASSERT_VIOLATIONDATA_RACE (18 of 36 remaining) [2023-11-19 07:47:36,403 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr6ASSERT_VIOLATIONDATA_RACE (17 of 36 remaining) [2023-11-19 07:47:36,403 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr2ASSERT_VIOLATIONDATA_RACE (16 of 36 remaining) [2023-11-19 07:47:36,403 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr7ASSERT_VIOLATIONDATA_RACE (15 of 36 remaining) [2023-11-19 07:47:36,403 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 36 remaining) [2023-11-19 07:47:36,404 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE (13 of 36 remaining) [2023-11-19 07:47:36,404 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE (12 of 36 remaining) [2023-11-19 07:47:36,404 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0ASSERT_VIOLATIONDATA_RACE (11 of 36 remaining) [2023-11-19 07:47:36,404 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr9ASSERT_VIOLATIONDATA_RACE (10 of 36 remaining) [2023-11-19 07:47:36,404 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1ASSERT_VIOLATIONDATA_RACE (9 of 36 remaining) [2023-11-19 07:47:36,405 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr10ASSERT_VIOLATIONDATA_RACE (8 of 36 remaining) [2023-11-19 07:47:36,405 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr3ASSERT_VIOLATIONDATA_RACE (7 of 36 remaining) [2023-11-19 07:47:36,405 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr8ASSERT_VIOLATIONDATA_RACE (6 of 36 remaining) [2023-11-19 07:47:36,405 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr4ASSERT_VIOLATIONDATA_RACE (5 of 36 remaining) [2023-11-19 07:47:36,405 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr5ASSERT_VIOLATIONDATA_RACE (4 of 36 remaining) [2023-11-19 07:47:36,406 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr6ASSERT_VIOLATIONDATA_RACE (3 of 36 remaining) [2023-11-19 07:47:36,406 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr2ASSERT_VIOLATIONDATA_RACE (2 of 36 remaining) [2023-11-19 07:47:36,406 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr7ASSERT_VIOLATIONDATA_RACE (1 of 36 remaining) [2023-11-19 07:47:36,406 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbThread1of1ForFork1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 36 remaining) [2023-11-19 07:47:36,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-19 07:47:36,407 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:36,415 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-19 07:47:36,415 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:47:36,420 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:47:36 BasicIcfg [2023-11-19 07:47:36,420 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:47:36,421 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:47:36,421 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:47:36,421 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:47:36,422 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:47:18" (3/4) ... [2023-11-19 07:47:36,423 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 07:47:36,427 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread_ath9k [2023-11-19 07:47:36,428 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread_usb [2023-11-19 07:47:36,435 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2023-11-19 07:47:36,436 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-19 07:47:36,437 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 07:47:36,437 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 07:47:36,550 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffcf2c8b-301c-471e-9290-5715a940bd4f/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 07:47:36,551 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffcf2c8b-301c-471e-9290-5715a940bd4f/bin/uautomizer-verify-uCwYo4JHxu/witness.yml [2023-11-19 07:47:36,551 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:47:36,552 INFO L158 Benchmark]: Toolchain (without parser) took 20928.69ms. Allocated memory was 138.4MB in the beginning and 310.4MB in the end (delta: 172.0MB). Free memory was 91.4MB in the beginning and 101.9MB in the end (delta: -10.5MB). Peak memory consumption was 162.6MB. Max. memory is 16.1GB. [2023-11-19 07:47:36,552 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 138.4MB. Free memory is still 82.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:47:36,553 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1465.40ms. Allocated memory was 138.4MB in the beginning and 199.2MB in the end (delta: 60.8MB). Free memory was 90.9MB in the beginning and 144.6MB in the end (delta: -53.7MB). Peak memory consumption was 45.7MB. Max. memory is 16.1GB. [2023-11-19 07:47:36,553 INFO L158 Benchmark]: Boogie Procedure Inliner took 122.25ms. Allocated memory is still 199.2MB. Free memory was 144.6MB in the beginning and 141.2MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:47:36,553 INFO L158 Benchmark]: Boogie Preprocessor took 112.11ms. Allocated memory is still 199.2MB. Free memory was 141.2MB in the beginning and 137.5MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 07:47:36,554 INFO L158 Benchmark]: RCFGBuilder took 989.53ms. Allocated memory is still 199.2MB. Free memory was 137.5MB in the beginning and 106.8MB in the end (delta: 30.6MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2023-11-19 07:47:36,554 INFO L158 Benchmark]: TraceAbstraction took 18096.52ms. Allocated memory was 199.2MB in the beginning and 310.4MB in the end (delta: 111.1MB). Free memory was 106.0MB in the beginning and 107.1MB in the end (delta: -1.1MB). Peak memory consumption was 112.7MB. Max. memory is 16.1GB. [2023-11-19 07:47:36,555 INFO L158 Benchmark]: Witness Printer took 130.36ms. Allocated memory is still 310.4MB. Free memory was 107.1MB in the beginning and 101.9MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 07:47:36,561 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 138.4MB. Free memory is still 82.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1465.40ms. Allocated memory was 138.4MB in the beginning and 199.2MB in the end (delta: 60.8MB). Free memory was 90.9MB in the beginning and 144.6MB in the end (delta: -53.7MB). Peak memory consumption was 45.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 122.25ms. Allocated memory is still 199.2MB. Free memory was 144.6MB in the beginning and 141.2MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 112.11ms. Allocated memory is still 199.2MB. Free memory was 141.2MB in the beginning and 137.5MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 989.53ms. Allocated memory is still 199.2MB. Free memory was 137.5MB in the beginning and 106.8MB in the end (delta: 30.6MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 18096.52ms. Allocated memory was 199.2MB in the beginning and 310.4MB in the end (delta: 111.1MB). Free memory was 106.0MB in the beginning and 107.1MB in the end (delta: -1.1MB). Peak memory consumption was 112.7MB. Max. memory is 16.1GB. * Witness Printer took 130.36ms. Allocated memory is still 310.4MB. Free memory was 107.1MB in the beginning and 101.9MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.3s, 309 PlacesBefore, 70 PlacesAfterwards, 332 TransitionsBefore, 76 TransitionsAfterwards, 20984 CoEnabledTransitionPairs, 9 FixpointIterations, 102 TrivialSequentialCompositions, 217 ConcurrentSequentialCompositions, 12 TrivialYvCompositions, 69 ConcurrentYvCompositions, 17 ChoiceCompositions, 417 TotalNumberOfCompositions, 52854 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 25364, independent: 24621, independent conditional: 0, independent unconditional: 24621, dependent: 743, dependent conditional: 0, dependent unconditional: 743, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 12687, independent: 12587, independent conditional: 0, independent unconditional: 12587, dependent: 100, dependent conditional: 0, dependent unconditional: 100, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 25364, independent: 12034, independent conditional: 0, independent unconditional: 12034, dependent: 643, dependent conditional: 0, dependent unconditional: 643, unknown: 12687, unknown conditional: 0, unknown unconditional: 12687] , Statistics on independence cache: Total cache size (in pairs): 515, Positive cache size: 477, Positive conditional cache size: 0, Positive unconditional cache size: 477, Negative cache size: 38, Negative conditional cache size: 0, Negative unconditional cache size: 38, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 1699]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1700]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1777]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1778]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1783]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1784]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1790]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1792]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1793]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1743]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1771]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1748]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1772]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1756]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1764]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1725]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1758]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1759]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1752]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1760]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 482 locations, 36 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 17.9s, OverallIterations: 12, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 10.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 876 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 471 mSDsluCounter, 41 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 155 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1760 IncrementalHoareTripleChecker+Invalid, 1915 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 155 mSolverCounterUnsat, 41 mSDtfsCounter, 1760 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=334occurred in iteration=7, InterpolantAutomatonStates: 41, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 117 NumberOfCodeBlocks, 117 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 105 ConstructedInterpolants, 0 QuantifiedInterpolants, 288 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 4/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 20 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-19 07:47:36,600 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffcf2c8b-301c-471e-9290-5715a940bd4f/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE