./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 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d8f4de-81c8-429e-9749-5fd8865e1206/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d8f4de-81c8-429e-9749-5fd8865e1206/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d8f4de-81c8-429e-9749-5fd8865e1206/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d8f4de-81c8-429e-9749-5fd8865e1206/bin/uautomizer-verify-BQ2R08f2Ya/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_50d8f4de-81c8-429e-9749-5fd8865e1206/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d8f4de-81c8-429e-9749-5fd8865e1206/bin/uautomizer-verify-BQ2R08f2Ya --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 0.2.4-dev-0e0057c [2023-11-29 00:55:30,592 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 00:55:30,655 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d8f4de-81c8-429e-9749-5fd8865e1206/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-29 00:55:30,660 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 00:55:30,661 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 00:55:30,685 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 00:55:30,685 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 00:55:30,686 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 00:55:30,686 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 00:55:30,687 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 00:55:30,688 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 00:55:30,688 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 00:55:30,689 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 00:55:30,689 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 00:55:30,690 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 00:55:30,690 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 00:55:30,691 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 00:55:30,691 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 00:55:30,692 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 00:55:30,692 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 00:55:30,693 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 00:55:30,694 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 00:55:30,694 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-29 00:55:30,695 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 00:55:30,695 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 00:55:30,696 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 00:55:30,696 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 00:55:30,697 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 00:55:30,697 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 00:55:30,698 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 00:55:30,698 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 00:55:30,699 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 00:55:30,699 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 00:55:30,699 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 00:55:30,699 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 00:55:30,700 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 00:55:30,700 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 00:55:30,700 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 00:55:30,700 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 00:55:30,700 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 00:55:30,700 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 00:55:30,701 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_50d8f4de-81c8-429e-9749-5fd8865e1206/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d8f4de-81c8-429e-9749-5fd8865e1206/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a9552a698db9701543deeff63aa990ab8fc4764b65dba5035623425bdf77554d [2023-11-29 00:55:30,902 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 00:55:30,924 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 00:55:30,926 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 00:55:30,927 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 00:55:30,928 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 00:55:30,929 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d8f4de-81c8-429e-9749-5fd8865e1206/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/ldv-races/race-4_1-thread_local_vars.i [2023-11-29 00:55:33,674 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 00:55:33,948 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 00:55:33,948 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d8f4de-81c8-429e-9749-5fd8865e1206/sv-benchmarks/c/ldv-races/race-4_1-thread_local_vars.i [2023-11-29 00:55:33,971 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d8f4de-81c8-429e-9749-5fd8865e1206/bin/uautomizer-verify-BQ2R08f2Ya/data/1e7b0cfb7/9302e9637bfc4d3ab5c0e4f11fa08b47/FLAG60ae045d2 [2023-11-29 00:55:33,986 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d8f4de-81c8-429e-9749-5fd8865e1206/bin/uautomizer-verify-BQ2R08f2Ya/data/1e7b0cfb7/9302e9637bfc4d3ab5c0e4f11fa08b47 [2023-11-29 00:55:33,988 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 00:55:33,990 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 00:55:33,991 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 00:55:33,992 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 00:55:33,996 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 00:55:33,997 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:55:33" (1/1) ... [2023-11-29 00:55:33,998 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@348562cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:55:33, skipping insertion in model container [2023-11-29 00:55:33,998 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:55:33" (1/1) ... [2023-11-29 00:55:34,054 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 00:55:34,669 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:55:34,682 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 00:55:34,753 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:55:34,874 INFO L206 MainTranslator]: Completed translation [2023-11-29 00:55:34,874 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:55:34 WrapperNode [2023-11-29 00:55:34,875 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 00:55:34,876 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 00:55:34,876 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 00:55:34,876 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 00:55:34,883 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:55:34" (1/1) ... [2023-11-29 00:55:34,913 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:55:34" (1/1) ... [2023-11-29 00:55:34,948 INFO L138 Inliner]: procedures = 487, calls = 45, calls flagged for inlining = 16, calls inlined = 21, statements flattened = 289 [2023-11-29 00:55:34,949 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 00:55:34,949 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 00:55:34,950 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 00:55:34,950 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 00:55:34,959 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:55:34" (1/1) ... [2023-11-29 00:55:34,960 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:55:34" (1/1) ... [2023-11-29 00:55:34,967 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:55:34" (1/1) ... [2023-11-29 00:55:34,968 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:55:34" (1/1) ... [2023-11-29 00:55:34,985 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:55:34" (1/1) ... [2023-11-29 00:55:34,990 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:55:34" (1/1) ... [2023-11-29 00:55:34,996 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:55:34" (1/1) ... [2023-11-29 00:55:35,000 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:55:34" (1/1) ... [2023-11-29 00:55:35,007 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 00:55:35,008 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 00:55:35,009 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 00:55:35,009 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 00:55:35,010 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:55:34" (1/1) ... [2023-11-29 00:55:35,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 00:55:35,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d8f4de-81c8-429e-9749-5fd8865e1206/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:55:35,044 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d8f4de-81c8-429e-9749-5fd8865e1206/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 00:55:35,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d8f4de-81c8-429e-9749-5fd8865e1206/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 00:55:35,080 INFO L130 BoogieDeclarations]: Found specification of procedure thread_usb [2023-11-29 00:55:35,081 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_usb [2023-11-29 00:55:35,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 00:55:35,081 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-29 00:55:35,081 INFO L130 BoogieDeclarations]: Found specification of procedure thread_ath9k [2023-11-29 00:55:35,081 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_ath9k [2023-11-29 00:55:35,081 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-29 00:55:35,082 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 00:55:35,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-29 00:55:35,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 00:55:35,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 00:55:35,082 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 00:55:35,082 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-29 00:55:35,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-29 00:55:35,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-29 00:55:35,084 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-29 00:55:35,362 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 00:55:35,364 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 00:55:35,688 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 00:55:35,710 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 00:55:35,711 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-29 00:55:35,712 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:55:35 BoogieIcfgContainer [2023-11-29 00:55:35,713 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 00:55:35,715 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 00:55:35,715 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 00:55:35,717 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 00:55:35,717 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 12:55:33" (1/3) ... [2023-11-29 00:55:35,718 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@609340ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:55:35, skipping insertion in model container [2023-11-29 00:55:35,718 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:55:34" (2/3) ... [2023-11-29 00:55:35,718 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@609340ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:55:35, skipping insertion in model container [2023-11-29 00:55:35,719 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:55:35" (3/3) ... [2023-11-29 00:55:35,720 INFO L112 eAbstractionObserver]: Analyzing ICFG race-4_1-thread_local_vars.i [2023-11-29 00:55:35,726 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-29 00:55:35,734 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 00:55:35,734 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2023-11-29 00:55:35,734 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 00:55:35,827 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2023-11-29 00:55:35,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 440 places, 478 transitions, 983 flow [2023-11-29 00:55:36,019 INFO L124 PetriNetUnfolderBase]: 41/489 cut-off events. [2023-11-29 00:55:36,019 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-29 00:55:36,028 INFO L83 FinitePrefix]: Finished finitePrefix Result has 500 conditions, 489 events. 41/489 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1436 event pairs, 0 based on Foata normal form. 0/413 useless extension candidates. Maximal degree in co-relation 326. Up to 11 conditions per place. [2023-11-29 00:55:36,028 INFO L82 GeneralOperation]: Start removeDead. Operand has 440 places, 478 transitions, 983 flow [2023-11-29 00:55:36,039 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 310 places, 333 transitions, 682 flow [2023-11-29 00:55:36,049 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 00:55:36,056 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;@11706a9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 00:55:36,056 INFO L358 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2023-11-29 00:55:36,061 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 00:55:36,062 INFO L124 PetriNetUnfolderBase]: 0/29 cut-off events. [2023-11-29 00:55:36,062 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 00:55:36,062 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:55:36,063 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:55:36,063 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)] === [2023-11-29 00:55:36,069 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:55:36,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1910435055, now seen corresponding path program 1 times [2023-11-29 00:55:36,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:55:36,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33518023] [2023-11-29 00:55:36,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:55:36,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:55:36,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:55:36,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:55:36,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:55:36,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33518023] [2023-11-29 00:55:36,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33518023] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:55:36,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:55:36,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 00:55:36,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375630342] [2023-11-29 00:55:36,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:55:36,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:55:36,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:55:36,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:55:36,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:55:36,601 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 416 out of 478 [2023-11-29 00:55:36,608 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 310 places, 333 transitions, 682 flow. Second operand has 3 states, 3 states have (on average 417.3333333333333) internal successors, (1252), 3 states have internal predecessors, (1252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:36,608 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:55:36,608 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 416 of 478 [2023-11-29 00:55:36,609 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:55:36,833 INFO L124 PetriNetUnfolderBase]: 82/985 cut-off events. [2023-11-29 00:55:36,833 INFO L125 PetriNetUnfolderBase]: For 35/43 co-relation queries the response was YES. [2023-11-29 00:55:36,839 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1131 conditions, 985 events. 82/985 cut-off events. For 35/43 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 5104 event pairs, 48 based on Foata normal form. 74/925 useless extension candidates. Maximal degree in co-relation 804. Up to 125 conditions per place. [2023-11-29 00:55:36,844 INFO L140 encePairwiseOnDemand]: 459/478 looper letters, 22 selfloop transitions, 2 changer transitions 6/298 dead transitions. [2023-11-29 00:55:36,844 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 298 transitions, 660 flow [2023-11-29 00:55:36,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:55:36,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 00:55:36,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1289 transitions. [2023-11-29 00:55:36,863 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.898884239888424 [2023-11-29 00:55:36,864 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1289 transitions. [2023-11-29 00:55:36,865 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1289 transitions. [2023-11-29 00:55:36,868 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:55:36,871 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1289 transitions. [2023-11-29 00:55:36,878 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 429.6666666666667) internal successors, (1289), 3 states have internal predecessors, (1289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:36,887 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 478.0) internal successors, (1912), 4 states have internal predecessors, (1912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:36,889 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 478.0) internal successors, (1912), 4 states have internal predecessors, (1912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:36,890 INFO L175 Difference]: Start difference. First operand has 310 places, 333 transitions, 682 flow. Second operand 3 states and 1289 transitions. [2023-11-29 00:55:36,891 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 298 transitions, 660 flow [2023-11-29 00:55:36,918 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 298 transitions, 656 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 00:55:36,926 INFO L231 Difference]: Finished difference. Result has 291 places, 292 transitions, 600 flow [2023-11-29 00:55:36,929 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=478, PETRI_DIFFERENCE_MINUEND_FLOW=608, PETRI_DIFFERENCE_MINUEND_PLACES=289, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=298, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=600, PETRI_PLACES=291, PETRI_TRANSITIONS=292} [2023-11-29 00:55:36,935 INFO L281 CegarLoopForPetriNet]: 310 programPoint places, -19 predicate places. [2023-11-29 00:55:36,936 INFO L495 AbstractCegarLoop]: Abstraction has has 291 places, 292 transitions, 600 flow [2023-11-29 00:55:36,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 417.3333333333333) internal successors, (1252), 3 states have internal predecessors, (1252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:36,938 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:55:36,938 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:55:36,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 00:55:36,939 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-29 00:55:36,941 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:55:36,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1158336408, now seen corresponding path program 1 times [2023-11-29 00:55:36,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:55:36,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623151938] [2023-11-29 00:55:36,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:55:36,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:55:37,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:55:37,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:55:37,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:55:37,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623151938] [2023-11-29 00:55:37,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623151938] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:55:37,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:55:37,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 00:55:37,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965730369] [2023-11-29 00:55:37,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:55:37,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:55:37,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:55:37,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:55:37,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:55:37,148 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 406 out of 478 [2023-11-29 00:55:37,150 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 292 transitions, 600 flow. Second operand has 3 states, 3 states have (on average 407.0) internal successors, (1221), 3 states have internal predecessors, (1221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:37,151 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:55:37,151 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 406 of 478 [2023-11-29 00:55:37,151 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:55:37,342 INFO L124 PetriNetUnfolderBase]: 83/946 cut-off events. [2023-11-29 00:55:37,342 INFO L125 PetriNetUnfolderBase]: For 19/24 co-relation queries the response was YES. [2023-11-29 00:55:37,345 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1110 conditions, 946 events. 83/946 cut-off events. For 19/24 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 4773 event pairs, 21 based on Foata normal form. 1/835 useless extension candidates. Maximal degree in co-relation 1072. Up to 112 conditions per place. [2023-11-29 00:55:37,350 INFO L140 encePairwiseOnDemand]: 458/478 looper letters, 26 selfloop transitions, 14 changer transitions 0/301 dead transitions. [2023-11-29 00:55:37,350 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 301 transitions, 699 flow [2023-11-29 00:55:37,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:55:37,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 00:55:37,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1264 transitions. [2023-11-29 00:55:37,355 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8814504881450488 [2023-11-29 00:55:37,355 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1264 transitions. [2023-11-29 00:55:37,356 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1264 transitions. [2023-11-29 00:55:37,357 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:55:37,357 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1264 transitions. [2023-11-29 00:55:37,361 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 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) [2023-11-29 00:55:37,366 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 478.0) internal successors, (1912), 4 states have internal predecessors, (1912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:37,368 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 478.0) internal successors, (1912), 4 states have internal predecessors, (1912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:37,368 INFO L175 Difference]: Start difference. First operand has 291 places, 292 transitions, 600 flow. Second operand 3 states and 1264 transitions. [2023-11-29 00:55:37,368 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 284 places, 301 transitions, 699 flow [2023-11-29 00:55:37,371 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 301 transitions, 695 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 00:55:37,377 INFO L231 Difference]: Finished difference. Result has 284 places, 298 transitions, 688 flow [2023-11-29 00:55:37,378 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=478, PETRI_DIFFERENCE_MINUEND_FLOW=590, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=289, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=275, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=688, PETRI_PLACES=284, PETRI_TRANSITIONS=298} [2023-11-29 00:55:37,379 INFO L281 CegarLoopForPetriNet]: 310 programPoint places, -26 predicate places. [2023-11-29 00:55:37,379 INFO L495 AbstractCegarLoop]: Abstraction has has 284 places, 298 transitions, 688 flow [2023-11-29 00:55:37,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 407.0) internal successors, (1221), 3 states have internal predecessors, (1221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:37,381 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:55:37,381 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:55:37,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 00:55:37,381 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-29 00:55:37,382 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:55:37,382 INFO L85 PathProgramCache]: Analyzing trace with hash 2025327433, now seen corresponding path program 1 times [2023-11-29 00:55:37,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:55:37,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753722906] [2023-11-29 00:55:37,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:55:37,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:55:37,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:55:37,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:55:37,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:55:37,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753722906] [2023-11-29 00:55:37,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753722906] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:55:37,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:55:37,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 00:55:37,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463131772] [2023-11-29 00:55:37,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:55:37,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:55:37,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:55:37,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:55:37,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:55:37,574 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 416 out of 478 [2023-11-29 00:55:37,576 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 284 places, 298 transitions, 688 flow. Second operand has 3 states, 3 states have (on average 418.0) internal successors, (1254), 3 states have internal predecessors, (1254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:37,576 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:55:37,576 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 416 of 478 [2023-11-29 00:55:37,576 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:55:37,844 INFO L124 PetriNetUnfolderBase]: 137/1455 cut-off events. [2023-11-29 00:55:37,844 INFO L125 PetriNetUnfolderBase]: For 272/303 co-relation queries the response was YES. [2023-11-29 00:55:37,850 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1908 conditions, 1455 events. 137/1455 cut-off events. For 272/303 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 9181 event pairs, 61 based on Foata normal form. 0/1284 useless extension candidates. Maximal degree in co-relation 1470. Up to 203 conditions per place. [2023-11-29 00:55:37,858 INFO L140 encePairwiseOnDemand]: 475/478 looper letters, 28 selfloop transitions, 2 changer transitions 0/297 dead transitions. [2023-11-29 00:55:37,859 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 285 places, 297 transitions, 746 flow [2023-11-29 00:55:37,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:55:37,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 00:55:37,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1273 transitions. [2023-11-29 00:55:37,864 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8877266387726639 [2023-11-29 00:55:37,864 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1273 transitions. [2023-11-29 00:55:37,864 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1273 transitions. [2023-11-29 00:55:37,865 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:55:37,866 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1273 transitions. [2023-11-29 00:55:37,870 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 424.3333333333333) internal successors, (1273), 3 states have internal predecessors, (1273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:37,875 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 478.0) internal successors, (1912), 4 states have internal predecessors, (1912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:37,876 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 478.0) internal successors, (1912), 4 states have internal predecessors, (1912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:37,877 INFO L175 Difference]: Start difference. First operand has 284 places, 298 transitions, 688 flow. Second operand 3 states and 1273 transitions. [2023-11-29 00:55:37,877 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 285 places, 297 transitions, 746 flow [2023-11-29 00:55:37,881 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 283 places, 297 transitions, 718 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 00:55:37,886 INFO L231 Difference]: Finished difference. Result has 283 places, 297 transitions, 662 flow [2023-11-29 00:55:37,887 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=478, PETRI_DIFFERENCE_MINUEND_FLOW=658, PETRI_DIFFERENCE_MINUEND_PLACES=281, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=297, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=295, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=662, PETRI_PLACES=283, PETRI_TRANSITIONS=297} [2023-11-29 00:55:37,888 INFO L281 CegarLoopForPetriNet]: 310 programPoint places, -27 predicate places. [2023-11-29 00:55:37,888 INFO L495 AbstractCegarLoop]: Abstraction has has 283 places, 297 transitions, 662 flow [2023-11-29 00:55:37,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 418.0) internal successors, (1254), 3 states have internal predecessors, (1254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:37,890 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:55:37,890 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:55:37,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 00:55:37,890 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread_usbErr0ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-29 00:55:37,891 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:55:37,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1740343893, now seen corresponding path program 1 times [2023-11-29 00:55:37,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:55:37,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053712956] [2023-11-29 00:55:37,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:55:37,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:55:37,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:55:37,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:55:37,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:55:37,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053712956] [2023-11-29 00:55:37,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053712956] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:55:37,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:55:37,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 00:55:37,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442001497] [2023-11-29 00:55:37,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:55:37,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:55:37,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:55:37,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:55:37,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:55:38,049 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 423 out of 478 [2023-11-29 00:55:38,051 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 297 transitions, 662 flow. Second operand has 3 states, 3 states have (on average 424.3333333333333) internal successors, (1273), 3 states have internal predecessors, (1273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:38,051 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:55:38,051 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 423 of 478 [2023-11-29 00:55:38,052 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:55:38,235 INFO L124 PetriNetUnfolderBase]: 81/1032 cut-off events. [2023-11-29 00:55:38,235 INFO L125 PetriNetUnfolderBase]: For 16/17 co-relation queries the response was YES. [2023-11-29 00:55:38,239 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1216 conditions, 1032 events. 81/1032 cut-off events. For 16/17 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 5561 event pairs, 19 based on Foata normal form. 0/907 useless extension candidates. Maximal degree in co-relation 1175. Up to 67 conditions per place. [2023-11-29 00:55:38,244 INFO L140 encePairwiseOnDemand]: 475/478 looper letters, 14 selfloop transitions, 2 changer transitions 0/296 dead transitions. [2023-11-29 00:55:38,244 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 296 transitions, 692 flow [2023-11-29 00:55:38,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:55:38,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 00:55:38,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1286 transitions. [2023-11-29 00:55:38,249 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8967921896792189 [2023-11-29 00:55:38,249 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1286 transitions. [2023-11-29 00:55:38,249 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1286 transitions. [2023-11-29 00:55:38,251 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:55:38,251 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1286 transitions. [2023-11-29 00:55:38,255 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 428.6666666666667) internal successors, (1286), 3 states have internal predecessors, (1286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:38,260 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 478.0) internal successors, (1912), 4 states have internal predecessors, (1912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:38,261 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 478.0) internal successors, (1912), 4 states have internal predecessors, (1912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:38,262 INFO L175 Difference]: Start difference. First operand has 283 places, 297 transitions, 662 flow. Second operand 3 states and 1286 transitions. [2023-11-29 00:55:38,262 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 284 places, 296 transitions, 692 flow [2023-11-29 00:55:38,265 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 296 transitions, 688 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 00:55:38,270 INFO L231 Difference]: Finished difference. Result has 282 places, 296 transitions, 660 flow [2023-11-29 00:55:38,270 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=478, PETRI_DIFFERENCE_MINUEND_FLOW=656, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=294, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=660, PETRI_PLACES=282, PETRI_TRANSITIONS=296} [2023-11-29 00:55:38,271 INFO L281 CegarLoopForPetriNet]: 310 programPoint places, -28 predicate places. [2023-11-29 00:55:38,271 INFO L495 AbstractCegarLoop]: Abstraction has has 282 places, 296 transitions, 660 flow [2023-11-29 00:55:38,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 424.3333333333333) internal successors, (1273), 3 states have internal predecessors, (1273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:38,273 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:55:38,273 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:55:38,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 00:55:38,273 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread_usbErr1ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-29 00:55:38,274 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:55:38,274 INFO L85 PathProgramCache]: Analyzing trace with hash 1299352113, now seen corresponding path program 1 times [2023-11-29 00:55:38,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:55:38,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250136736] [2023-11-29 00:55:38,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:55:38,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:55:38,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:55:38,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:55:38,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:55:38,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250136736] [2023-11-29 00:55:38,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250136736] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:55:38,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:55:38,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 00:55:38,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902621641] [2023-11-29 00:55:38,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:55:38,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:55:38,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:55:38,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:55:38,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:55:38,423 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 415 out of 478 [2023-11-29 00:55:38,425 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 282 places, 296 transitions, 660 flow. Second operand has 3 states, 3 states have (on average 416.3333333333333) internal successors, (1249), 3 states have internal predecessors, (1249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:38,426 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:55:38,426 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 415 of 478 [2023-11-29 00:55:38,426 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:55:38,627 INFO L124 PetriNetUnfolderBase]: 104/1186 cut-off events. [2023-11-29 00:55:38,627 INFO L125 PetriNetUnfolderBase]: For 16/17 co-relation queries the response was YES. [2023-11-29 00:55:38,632 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1405 conditions, 1186 events. 104/1186 cut-off events. For 16/17 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 6752 event pairs, 23 based on Foata normal form. 0/1046 useless extension candidates. Maximal degree in co-relation 1303. Up to 85 conditions per place. [2023-11-29 00:55:38,639 INFO L140 encePairwiseOnDemand]: 470/478 looper letters, 16 selfloop transitions, 5 changer transitions 0/298 dead transitions. [2023-11-29 00:55:38,639 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 298 transitions, 706 flow [2023-11-29 00:55:38,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:55:38,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 00:55:38,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1269 transitions. [2023-11-29 00:55:38,644 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8849372384937239 [2023-11-29 00:55:38,644 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1269 transitions. [2023-11-29 00:55:38,644 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1269 transitions. [2023-11-29 00:55:38,646 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:55:38,646 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1269 transitions. [2023-11-29 00:55:38,650 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 423.0) internal successors, (1269), 3 states have internal predecessors, (1269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:38,675 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 478.0) internal successors, (1912), 4 states have internal predecessors, (1912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:38,677 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 478.0) internal successors, (1912), 4 states have internal predecessors, (1912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:38,677 INFO L175 Difference]: Start difference. First operand has 282 places, 296 transitions, 660 flow. Second operand 3 states and 1269 transitions. [2023-11-29 00:55:38,677 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 298 transitions, 706 flow [2023-11-29 00:55:38,681 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 279 places, 298 transitions, 702 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 00:55:38,687 INFO L231 Difference]: Finished difference. Result has 280 places, 296 transitions, 677 flow [2023-11-29 00:55:38,688 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=478, PETRI_DIFFERENCE_MINUEND_FLOW=650, PETRI_DIFFERENCE_MINUEND_PLACES=277, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=293, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=288, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=677, PETRI_PLACES=280, PETRI_TRANSITIONS=296} [2023-11-29 00:55:38,688 INFO L281 CegarLoopForPetriNet]: 310 programPoint places, -30 predicate places. [2023-11-29 00:55:38,689 INFO L495 AbstractCegarLoop]: Abstraction has has 280 places, 296 transitions, 677 flow [2023-11-29 00:55:38,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 416.3333333333333) internal successors, (1249), 3 states have internal predecessors, (1249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:38,690 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:55:38,690 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:55:38,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 00:55:38,691 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-29 00:55:38,691 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:55:38,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1376613524, now seen corresponding path program 1 times [2023-11-29 00:55:38,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:55:38,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172723950] [2023-11-29 00:55:38,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:55:38,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:55:38,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:55:39,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:55:39,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:55:39,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172723950] [2023-11-29 00:55:39,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172723950] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:55:39,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:55:39,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 00:55:39,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161853679] [2023-11-29 00:55:39,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:55:39,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 00:55:39,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:55:39,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 00:55:39,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 00:55:39,489 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 431 out of 478 [2023-11-29 00:55:39,493 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 296 transitions, 677 flow. Second operand has 6 states, 6 states have (on average 432.1666666666667) internal successors, (2593), 6 states have internal predecessors, (2593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:39,493 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:55:39,494 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 431 of 478 [2023-11-29 00:55:39,494 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:55:39,720 INFO L124 PetriNetUnfolderBase]: 130/1027 cut-off events. [2023-11-29 00:55:39,721 INFO L125 PetriNetUnfolderBase]: For 44/93 co-relation queries the response was YES. [2023-11-29 00:55:39,725 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1337 conditions, 1027 events. 130/1027 cut-off events. For 44/93 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 6077 event pairs, 9 based on Foata normal form. 16/933 useless extension candidates. Maximal degree in co-relation 975. Up to 69 conditions per place. [2023-11-29 00:55:39,730 INFO L140 encePairwiseOnDemand]: 473/478 looper letters, 29 selfloop transitions, 4 changer transitions 19/315 dead transitions. [2023-11-29 00:55:39,730 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 315 transitions, 817 flow [2023-11-29 00:55:39,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 00:55:39,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 00:55:39,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2620 transitions. [2023-11-29 00:55:39,738 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9135285913528591 [2023-11-29 00:55:39,738 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2620 transitions. [2023-11-29 00:55:39,739 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2620 transitions. [2023-11-29 00:55:39,741 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:55:39,741 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2620 transitions. [2023-11-29 00:55:39,748 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 436.6666666666667) internal successors, (2620), 6 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:39,757 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 478.0) internal successors, (3346), 7 states have internal predecessors, (3346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:39,758 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 478.0) internal successors, (3346), 7 states have internal predecessors, (3346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:39,758 INFO L175 Difference]: Start difference. First operand has 280 places, 296 transitions, 677 flow. Second operand 6 states and 2620 transitions. [2023-11-29 00:55:39,759 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 284 places, 315 transitions, 817 flow [2023-11-29 00:55:39,762 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 283 places, 315 transitions, 812 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 00:55:39,766 INFO L231 Difference]: Finished difference. Result has 283 places, 276 transitions, 636 flow [2023-11-29 00:55:39,767 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=478, PETRI_DIFFERENCE_MINUEND_FLOW=670, PETRI_DIFFERENCE_MINUEND_PLACES=278, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=295, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=291, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=636, PETRI_PLACES=283, PETRI_TRANSITIONS=276} [2023-11-29 00:55:39,768 INFO L281 CegarLoopForPetriNet]: 310 programPoint places, -27 predicate places. [2023-11-29 00:55:39,768 INFO L495 AbstractCegarLoop]: Abstraction has has 283 places, 276 transitions, 636 flow [2023-11-29 00:55:39,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 432.1666666666667) internal successors, (2593), 6 states have internal predecessors, (2593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:39,769 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:55:39,770 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:55:39,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 00:55:39,770 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread_usbErr9ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-29 00:55:39,770 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:55:39,770 INFO L85 PathProgramCache]: Analyzing trace with hash -666149013, now seen corresponding path program 1 times [2023-11-29 00:55:39,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:55:39,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544122199] [2023-11-29 00:55:39,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:55:39,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:55:39,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:55:39,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:55:39,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:55:39,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544122199] [2023-11-29 00:55:39,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544122199] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:55:39,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:55:39,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 00:55:39,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306057995] [2023-11-29 00:55:39,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:55:39,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:55:39,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:55:39,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:55:39,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:55:39,917 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 418 out of 478 [2023-11-29 00:55:39,919 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 276 transitions, 636 flow. Second operand has 3 states, 3 states have (on average 420.0) internal successors, (1260), 3 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:39,919 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:55:39,919 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 418 of 478 [2023-11-29 00:55:39,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:55:40,098 INFO L124 PetriNetUnfolderBase]: 123/1089 cut-off events. [2023-11-29 00:55:40,098 INFO L125 PetriNetUnfolderBase]: For 85/97 co-relation queries the response was YES. [2023-11-29 00:55:40,102 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1423 conditions, 1089 events. 123/1089 cut-off events. For 85/97 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 6003 event pairs, 30 based on Foata normal form. 2/961 useless extension candidates. Maximal degree in co-relation 1340. Up to 155 conditions per place. [2023-11-29 00:55:40,108 INFO L140 encePairwiseOnDemand]: 472/478 looper letters, 27 selfloop transitions, 7 changer transitions 0/283 dead transitions. [2023-11-29 00:55:40,108 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 267 places, 283 transitions, 724 flow [2023-11-29 00:55:40,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:55:40,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 00:55:40,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1282 transitions. [2023-11-29 00:55:40,113 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8940027894002789 [2023-11-29 00:55:40,113 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1282 transitions. [2023-11-29 00:55:40,113 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1282 transitions. [2023-11-29 00:55:40,114 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:55:40,115 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1282 transitions. [2023-11-29 00:55:40,118 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 427.3333333333333) internal successors, (1282), 3 states have internal predecessors, (1282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:40,122 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 478.0) internal successors, (1912), 4 states have internal predecessors, (1912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:40,123 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 478.0) internal successors, (1912), 4 states have internal predecessors, (1912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:40,123 INFO L175 Difference]: Start difference. First operand has 283 places, 276 transitions, 636 flow. Second operand 3 states and 1282 transitions. [2023-11-29 00:55:40,123 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 267 places, 283 transitions, 724 flow [2023-11-29 00:55:40,126 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 263 places, 283 transitions, 717 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-29 00:55:40,131 INFO L231 Difference]: Finished difference. Result has 265 places, 281 transitions, 685 flow [2023-11-29 00:55:40,131 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=478, PETRI_DIFFERENCE_MINUEND_FLOW=629, PETRI_DIFFERENCE_MINUEND_PLACES=261, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=276, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=269, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=685, PETRI_PLACES=265, PETRI_TRANSITIONS=281} [2023-11-29 00:55:40,132 INFO L281 CegarLoopForPetriNet]: 310 programPoint places, -45 predicate places. [2023-11-29 00:55:40,132 INFO L495 AbstractCegarLoop]: Abstraction has has 265 places, 281 transitions, 685 flow [2023-11-29 00:55:40,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 420.0) internal successors, (1260), 3 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:40,133 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:55:40,134 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:55:40,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 00:55:40,134 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread_usbErr4ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-29 00:55:40,134 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:55:40,134 INFO L85 PathProgramCache]: Analyzing trace with hash -1985837229, now seen corresponding path program 1 times [2023-11-29 00:55:40,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:55:40,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288016181] [2023-11-29 00:55:40,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:55:40,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:55:40,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:55:40,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:55:40,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:55:40,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288016181] [2023-11-29 00:55:40,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288016181] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:55:40,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:55:40,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 00:55:40,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668726880] [2023-11-29 00:55:40,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:55:40,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:55:40,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:55:40,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:55:40,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:55:40,303 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 422 out of 478 [2023-11-29 00:55:40,305 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 265 places, 281 transitions, 685 flow. Second operand has 3 states, 3 states have (on average 423.3333333333333) internal successors, (1270), 3 states have internal predecessors, (1270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:40,305 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:55:40,305 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 422 of 478 [2023-11-29 00:55:40,305 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:55:40,502 INFO L124 PetriNetUnfolderBase]: 125/1208 cut-off events. [2023-11-29 00:55:40,503 INFO L125 PetriNetUnfolderBase]: For 116/132 co-relation queries the response was YES. [2023-11-29 00:55:40,508 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1558 conditions, 1208 events. 125/1208 cut-off events. For 116/132 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 7103 event pairs, 15 based on Foata normal form. 1/1067 useless extension candidates. Maximal degree in co-relation 1478. Up to 71 conditions per place. [2023-11-29 00:55:40,514 INFO L140 encePairwiseOnDemand]: 470/478 looper letters, 15 selfloop transitions, 5 changer transitions 0/285 dead transitions. [2023-11-29 00:55:40,514 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 267 places, 285 transitions, 733 flow [2023-11-29 00:55:40,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:55:40,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 00:55:40,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1289 transitions. [2023-11-29 00:55:40,519 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.898884239888424 [2023-11-29 00:55:40,519 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1289 transitions. [2023-11-29 00:55:40,519 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1289 transitions. [2023-11-29 00:55:40,520 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:55:40,520 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1289 transitions. [2023-11-29 00:55:40,524 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 429.6666666666667) internal successors, (1289), 3 states have internal predecessors, (1289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:40,527 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 478.0) internal successors, (1912), 4 states have internal predecessors, (1912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:40,528 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 478.0) internal successors, (1912), 4 states have internal predecessors, (1912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:40,528 INFO L175 Difference]: Start difference. First operand has 265 places, 281 transitions, 685 flow. Second operand 3 states and 1289 transitions. [2023-11-29 00:55:40,529 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 267 places, 285 transitions, 733 flow [2023-11-29 00:55:40,532 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 265 places, 285 transitions, 719 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 00:55:40,537 INFO L231 Difference]: Finished difference. Result has 267 places, 283 transitions, 705 flow [2023-11-29 00:55:40,537 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=478, PETRI_DIFFERENCE_MINUEND_FLOW=671, PETRI_DIFFERENCE_MINUEND_PLACES=263, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=281, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=276, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=705, PETRI_PLACES=267, PETRI_TRANSITIONS=283} [2023-11-29 00:55:40,538 INFO L281 CegarLoopForPetriNet]: 310 programPoint places, -43 predicate places. [2023-11-29 00:55:40,538 INFO L495 AbstractCegarLoop]: Abstraction has has 267 places, 283 transitions, 705 flow [2023-11-29 00:55:40,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 423.3333333333333) internal successors, (1270), 3 states have internal predecessors, (1270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:40,540 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:55:40,540 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:55:40,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 00:55:40,540 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-29 00:55:40,541 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:55:40,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1266217786, now seen corresponding path program 1 times [2023-11-29 00:55:40,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:55:40,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237549502] [2023-11-29 00:55:40,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:55:40,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:55:40,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:55:40,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:55:40,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:55:40,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237549502] [2023-11-29 00:55:40,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237549502] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:55:40,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:55:40,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 00:55:40,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420467266] [2023-11-29 00:55:40,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:55:40,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:55:40,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:55:40,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:55:40,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:55:40,690 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 416 out of 478 [2023-11-29 00:55:40,691 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 267 places, 283 transitions, 705 flow. Second operand has 3 states, 3 states have (on average 419.0) internal successors, (1257), 3 states have internal predecessors, (1257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:40,691 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:55:40,691 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 416 of 478 [2023-11-29 00:55:40,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:55:40,911 INFO L124 PetriNetUnfolderBase]: 165/1269 cut-off events. [2023-11-29 00:55:40,911 INFO L125 PetriNetUnfolderBase]: For 195/261 co-relation queries the response was YES. [2023-11-29 00:55:40,916 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1842 conditions, 1269 events. 165/1269 cut-off events. For 195/261 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 7677 event pairs, 39 based on Foata normal form. 2/1138 useless extension candidates. Maximal degree in co-relation 1758. Up to 232 conditions per place. [2023-11-29 00:55:40,922 INFO L140 encePairwiseOnDemand]: 470/478 looper letters, 29 selfloop transitions, 11 changer transitions 0/291 dead transitions. [2023-11-29 00:55:40,922 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 291 transitions, 814 flow [2023-11-29 00:55:40,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:55:40,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 00:55:40,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1279 transitions. [2023-11-29 00:55:40,927 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8919107391910739 [2023-11-29 00:55:40,927 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1279 transitions. [2023-11-29 00:55:40,927 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1279 transitions. [2023-11-29 00:55:40,928 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:55:40,928 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1279 transitions. [2023-11-29 00:55:40,932 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 426.3333333333333) internal successors, (1279), 3 states have internal predecessors, (1279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:40,935 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 478.0) internal successors, (1912), 4 states have internal predecessors, (1912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:40,935 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 478.0) internal successors, (1912), 4 states have internal predecessors, (1912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:40,935 INFO L175 Difference]: Start difference. First operand has 267 places, 283 transitions, 705 flow. Second operand 3 states and 1279 transitions. [2023-11-29 00:55:40,935 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 269 places, 291 transitions, 814 flow [2023-11-29 00:55:40,938 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 267 places, 291 transitions, 804 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 00:55:40,943 INFO L231 Difference]: Finished difference. Result has 269 places, 290 transitions, 781 flow [2023-11-29 00:55:40,944 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=478, PETRI_DIFFERENCE_MINUEND_FLOW=695, PETRI_DIFFERENCE_MINUEND_PLACES=265, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=283, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=272, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=781, PETRI_PLACES=269, PETRI_TRANSITIONS=290} [2023-11-29 00:55:40,944 INFO L281 CegarLoopForPetriNet]: 310 programPoint places, -41 predicate places. [2023-11-29 00:55:40,944 INFO L495 AbstractCegarLoop]: Abstraction has has 269 places, 290 transitions, 781 flow [2023-11-29 00:55:40,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 419.0) internal successors, (1257), 3 states have internal predecessors, (1257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:40,945 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:55:40,945 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:55:40,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-29 00:55:40,945 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread_usbErr2ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-29 00:55:40,946 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:55:40,946 INFO L85 PathProgramCache]: Analyzing trace with hash -1337695512, now seen corresponding path program 1 times [2023-11-29 00:55:40,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:55:40,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366885917] [2023-11-29 00:55:40,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:55:40,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:55:40,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:55:41,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:55:41,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:55:41,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366885917] [2023-11-29 00:55:41,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366885917] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:55:41,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:55:41,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 00:55:41,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972742056] [2023-11-29 00:55:41,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:55:41,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:55:41,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:55:41,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:55:41,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:55:41,059 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 423 out of 478 [2023-11-29 00:55:41,061 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 269 places, 290 transitions, 781 flow. Second operand has 3 states, 3 states have (on average 425.0) internal successors, (1275), 3 states have internal predecessors, (1275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:41,061 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:55:41,061 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 423 of 478 [2023-11-29 00:55:41,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:55:41,291 INFO L124 PetriNetUnfolderBase]: 169/1431 cut-off events. [2023-11-29 00:55:41,291 INFO L125 PetriNetUnfolderBase]: For 332/370 co-relation queries the response was YES. [2023-11-29 00:55:41,298 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2036 conditions, 1431 events. 169/1431 cut-off events. For 332/370 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 9035 event pairs, 23 based on Foata normal form. 0/1274 useless extension candidates. Maximal degree in co-relation 1954. Up to 99 conditions per place. [2023-11-29 00:55:41,306 INFO L140 encePairwiseOnDemand]: 475/478 looper letters, 19 selfloop transitions, 2 changer transitions 0/291 dead transitions. [2023-11-29 00:55:41,306 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 270 places, 291 transitions, 825 flow [2023-11-29 00:55:41,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:55:41,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 00:55:41,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1288 transitions. [2023-11-29 00:55:41,310 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.898186889818689 [2023-11-29 00:55:41,311 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1288 transitions. [2023-11-29 00:55:41,311 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1288 transitions. [2023-11-29 00:55:41,312 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:55:41,312 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1288 transitions. [2023-11-29 00:55:41,315 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 429.3333333333333) internal successors, (1288), 3 states have internal predecessors, (1288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:41,318 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 478.0) internal successors, (1912), 4 states have internal predecessors, (1912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:41,318 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 478.0) internal successors, (1912), 4 states have internal predecessors, (1912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:41,318 INFO L175 Difference]: Start difference. First operand has 269 places, 290 transitions, 781 flow. Second operand 3 states and 1288 transitions. [2023-11-29 00:55:41,318 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 270 places, 291 transitions, 825 flow [2023-11-29 00:55:41,322 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 268 places, 291 transitions, 803 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 00:55:41,327 INFO L231 Difference]: Finished difference. Result has 268 places, 289 transitions, 761 flow [2023-11-29 00:55:41,328 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=478, PETRI_DIFFERENCE_MINUEND_FLOW=757, PETRI_DIFFERENCE_MINUEND_PLACES=266, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=289, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=287, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=761, PETRI_PLACES=268, PETRI_TRANSITIONS=289} [2023-11-29 00:55:41,328 INFO L281 CegarLoopForPetriNet]: 310 programPoint places, -42 predicate places. [2023-11-29 00:55:41,328 INFO L495 AbstractCegarLoop]: Abstraction has has 268 places, 289 transitions, 761 flow [2023-11-29 00:55:41,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 425.0) internal successors, (1275), 3 states have internal predecessors, (1275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:41,329 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:55:41,329 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:55:41,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-29 00:55:41,330 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-29 00:55:41,330 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:55:41,330 INFO L85 PathProgramCache]: Analyzing trace with hash 2058707167, now seen corresponding path program 1 times [2023-11-29 00:55:41,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:55:41,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432298012] [2023-11-29 00:55:41,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:55:41,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:55:41,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:55:41,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:55:41,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:55:41,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432298012] [2023-11-29 00:55:41,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432298012] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:55:41,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:55:41,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 00:55:41,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275115223] [2023-11-29 00:55:41,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:55:41,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:55:41,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:55:41,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:55:41,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:55:41,480 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 416 out of 478 [2023-11-29 00:55:41,481 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 268 places, 289 transitions, 761 flow. Second operand has 3 states, 3 states have (on average 419.3333333333333) internal successors, (1258), 3 states have internal predecessors, (1258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:41,481 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:55:41,481 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 416 of 478 [2023-11-29 00:55:41,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:55:41,704 INFO L124 PetriNetUnfolderBase]: 280/1947 cut-off events. [2023-11-29 00:55:41,704 INFO L125 PetriNetUnfolderBase]: For 646/732 co-relation queries the response was YES. [2023-11-29 00:55:41,709 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2983 conditions, 1947 events. 280/1947 cut-off events. For 646/732 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 13873 event pairs, 90 based on Foata normal form. 2/1760 useless extension candidates. Maximal degree in co-relation 2740. Up to 358 conditions per place. [2023-11-29 00:55:41,716 INFO L140 encePairwiseOnDemand]: 472/478 looper letters, 35 selfloop transitions, 9 changer transitions 1/296 dead transitions. [2023-11-29 00:55:41,716 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 270 places, 296 transitions, 879 flow [2023-11-29 00:55:41,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:55:41,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 00:55:41,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1278 transitions. [2023-11-29 00:55:41,720 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.891213389121339 [2023-11-29 00:55:41,720 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1278 transitions. [2023-11-29 00:55:41,720 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1278 transitions. [2023-11-29 00:55:41,720 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:55:41,720 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1278 transitions. [2023-11-29 00:55:41,723 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 426.0) internal successors, (1278), 3 states have internal predecessors, (1278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:41,724 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 478.0) internal successors, (1912), 4 states have internal predecessors, (1912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:41,725 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 478.0) internal successors, (1912), 4 states have internal predecessors, (1912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:41,725 INFO L175 Difference]: Start difference. First operand has 268 places, 289 transitions, 761 flow. Second operand 3 states and 1278 transitions. [2023-11-29 00:55:41,725 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 270 places, 296 transitions, 879 flow [2023-11-29 00:55:41,728 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 268 places, 296 transitions, 875 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 00:55:41,731 INFO L231 Difference]: Finished difference. Result has 270 places, 293 transitions, 827 flow [2023-11-29 00:55:41,732 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=478, PETRI_DIFFERENCE_MINUEND_FLOW=757, PETRI_DIFFERENCE_MINUEND_PLACES=266, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=289, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=280, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=827, PETRI_PLACES=270, PETRI_TRANSITIONS=293} [2023-11-29 00:55:41,732 INFO L281 CegarLoopForPetriNet]: 310 programPoint places, -40 predicate places. [2023-11-29 00:55:41,732 INFO L495 AbstractCegarLoop]: Abstraction has has 270 places, 293 transitions, 827 flow [2023-11-29 00:55:41,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 419.3333333333333) internal successors, (1258), 3 states have internal predecessors, (1258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:41,733 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:55:41,733 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:55:41,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-29 00:55:41,733 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread_usbErr9ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-29 00:55:41,733 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:55:41,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1698302677, now seen corresponding path program 1 times [2023-11-29 00:55:41,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:55:41,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120179255] [2023-11-29 00:55:41,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:55:41,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:55:41,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:55:41,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:55:41,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:55:41,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120179255] [2023-11-29 00:55:41,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120179255] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:55:41,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:55:41,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 00:55:41,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270137535] [2023-11-29 00:55:41,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:55:41,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 00:55:41,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:55:41,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 00:55:41,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:55:41,873 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 429 out of 478 [2023-11-29 00:55:41,876 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 270 places, 293 transitions, 827 flow. Second operand has 5 states, 5 states have (on average 431.0) internal successors, (2155), 5 states have internal predecessors, (2155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:41,876 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:55:41,876 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 429 of 478 [2023-11-29 00:55:41,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:55:42,632 INFO L124 PetriNetUnfolderBase]: 433/3953 cut-off events. [2023-11-29 00:55:42,632 INFO L125 PetriNetUnfolderBase]: For 1166/1220 co-relation queries the response was YES. [2023-11-29 00:55:42,648 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5830 conditions, 3953 events. 433/3953 cut-off events. For 1166/1220 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 35139 event pairs, 46 based on Foata normal form. 3/3578 useless extension candidates. Maximal degree in co-relation 5747. Up to 301 conditions per place. [2023-11-29 00:55:42,662 INFO L140 encePairwiseOnDemand]: 471/478 looper letters, 34 selfloop transitions, 9 changer transitions 0/320 dead transitions. [2023-11-29 00:55:42,662 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 276 places, 320 transitions, 978 flow [2023-11-29 00:55:42,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 00:55:42,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-29 00:55:42,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 3047 transitions. [2023-11-29 00:55:42,671 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9106395696353855 [2023-11-29 00:55:42,671 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 3047 transitions. [2023-11-29 00:55:42,671 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 3047 transitions. [2023-11-29 00:55:42,673 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:55:42,673 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 3047 transitions. [2023-11-29 00:55:42,680 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 435.2857142857143) internal successors, (3047), 7 states have internal predecessors, (3047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:42,686 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 478.0) internal successors, (3824), 8 states have internal predecessors, (3824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:42,687 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 478.0) internal successors, (3824), 8 states have internal predecessors, (3824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:42,687 INFO L175 Difference]: Start difference. First operand has 270 places, 293 transitions, 827 flow. Second operand 7 states and 3047 transitions. [2023-11-29 00:55:42,688 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 276 places, 320 transitions, 978 flow [2023-11-29 00:55:42,694 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 274 places, 320 transitions, 954 flow, removed 3 selfloop flow, removed 2 redundant places. [2023-11-29 00:55:42,699 INFO L231 Difference]: Finished difference. Result has 280 places, 301 transitions, 871 flow [2023-11-29 00:55:42,700 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=478, PETRI_DIFFERENCE_MINUEND_FLOW=803, PETRI_DIFFERENCE_MINUEND_PLACES=268, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=293, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=287, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=871, PETRI_PLACES=280, PETRI_TRANSITIONS=301} [2023-11-29 00:55:42,700 INFO L281 CegarLoopForPetriNet]: 310 programPoint places, -30 predicate places. [2023-11-29 00:55:42,700 INFO L495 AbstractCegarLoop]: Abstraction has has 280 places, 301 transitions, 871 flow [2023-11-29 00:55:42,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 431.0) internal successors, (2155), 5 states have internal predecessors, (2155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:42,701 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:55:42,702 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:55:42,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-29 00:55:42,702 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-29 00:55:42,702 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:55:42,702 INFO L85 PathProgramCache]: Analyzing trace with hash 491305213, now seen corresponding path program 1 times [2023-11-29 00:55:42,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:55:42,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358705217] [2023-11-29 00:55:42,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:55:42,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:55:42,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:55:42,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:55:42,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:55:42,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358705217] [2023-11-29 00:55:42,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358705217] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:55:42,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:55:42,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 00:55:42,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592120509] [2023-11-29 00:55:42,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:55:42,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 00:55:42,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:55:42,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 00:55:42,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:55:42,858 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 427 out of 478 [2023-11-29 00:55:42,860 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 301 transitions, 871 flow. Second operand has 5 states, 5 states have (on average 429.4) internal successors, (2147), 5 states have internal predecessors, (2147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:42,860 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:55:42,860 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 427 of 478 [2023-11-29 00:55:42,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:55:43,691 INFO L124 PetriNetUnfolderBase]: 576/5072 cut-off events. [2023-11-29 00:55:43,691 INFO L125 PetriNetUnfolderBase]: For 1178/1270 co-relation queries the response was YES. [2023-11-29 00:55:43,709 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7477 conditions, 5072 events. 576/5072 cut-off events. For 1178/1270 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 45605 event pairs, 59 based on Foata normal form. 4/4584 useless extension candidates. Maximal degree in co-relation 7389. Up to 388 conditions per place. [2023-11-29 00:55:43,722 INFO L140 encePairwiseOnDemand]: 470/478 looper letters, 32 selfloop transitions, 8 changer transitions 0/323 dead transitions. [2023-11-29 00:55:43,722 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 286 places, 323 transitions, 1002 flow [2023-11-29 00:55:43,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 00:55:43,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-29 00:55:43,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 3030 transitions. [2023-11-29 00:55:43,729 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9055588762701734 [2023-11-29 00:55:43,729 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 3030 transitions. [2023-11-29 00:55:43,729 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 3030 transitions. [2023-11-29 00:55:43,730 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:55:43,730 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 3030 transitions. [2023-11-29 00:55:43,735 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 432.85714285714283) internal successors, (3030), 7 states have internal predecessors, (3030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:43,740 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 478.0) internal successors, (3824), 8 states have internal predecessors, (3824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:43,740 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 478.0) internal successors, (3824), 8 states have internal predecessors, (3824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:43,741 INFO L175 Difference]: Start difference. First operand has 280 places, 301 transitions, 871 flow. Second operand 7 states and 3030 transitions. [2023-11-29 00:55:43,741 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 286 places, 323 transitions, 1002 flow [2023-11-29 00:55:43,744 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 286 places, 323 transitions, 1002 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 00:55:43,748 INFO L231 Difference]: Finished difference. Result has 291 places, 308 transitions, 929 flow [2023-11-29 00:55:43,749 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=478, PETRI_DIFFERENCE_MINUEND_FLOW=871, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=301, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=294, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=929, PETRI_PLACES=291, PETRI_TRANSITIONS=308} [2023-11-29 00:55:43,749 INFO L281 CegarLoopForPetriNet]: 310 programPoint places, -19 predicate places. [2023-11-29 00:55:43,749 INFO L495 AbstractCegarLoop]: Abstraction has has 291 places, 308 transitions, 929 flow [2023-11-29 00:55:43,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 429.4) internal successors, (2147), 5 states have internal predecessors, (2147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:43,750 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:55:43,750 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:55:43,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-29 00:55:43,750 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread_usbErr4ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-29 00:55:43,751 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:55:43,751 INFO L85 PathProgramCache]: Analyzing trace with hash 396433175, now seen corresponding path program 1 times [2023-11-29 00:55:43,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:55:43,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177746231] [2023-11-29 00:55:43,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:55:43,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:55:43,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:55:43,856 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:55:43,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:55:43,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177746231] [2023-11-29 00:55:43,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177746231] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:55:43,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:55:43,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 00:55:43,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847427835] [2023-11-29 00:55:43,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:55:43,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 00:55:43,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:55:43,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 00:55:43,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:55:43,884 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 430 out of 478 [2023-11-29 00:55:43,886 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 308 transitions, 929 flow. Second operand has 5 states, 5 states have (on average 431.6) internal successors, (2158), 5 states have internal predecessors, (2158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:43,886 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:55:43,886 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 430 of 478 [2023-11-29 00:55:43,886 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:55:44,511 INFO L124 PetriNetUnfolderBase]: 427/3893 cut-off events. [2023-11-29 00:55:44,511 INFO L125 PetriNetUnfolderBase]: For 1039/1108 co-relation queries the response was YES. [2023-11-29 00:55:44,521 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5835 conditions, 3893 events. 427/3893 cut-off events. For 1039/1108 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 31956 event pairs, 67 based on Foata normal form. 7/3532 useless extension candidates. Maximal degree in co-relation 5742. Up to 299 conditions per place. [2023-11-29 00:55:44,530 INFO L140 encePairwiseOnDemand]: 473/478 looper letters, 27 selfloop transitions, 4 changer transitions 1/317 dead transitions. [2023-11-29 00:55:44,530 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 317 transitions, 1012 flow [2023-11-29 00:55:44,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 00:55:44,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 00:55:44,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2608 transitions. [2023-11-29 00:55:44,537 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9093444909344491 [2023-11-29 00:55:44,537 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2608 transitions. [2023-11-29 00:55:44,537 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2608 transitions. [2023-11-29 00:55:44,538 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:55:44,538 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2608 transitions. [2023-11-29 00:55:44,544 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 434.6666666666667) internal successors, (2608), 6 states have internal predecessors, (2608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:44,548 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 478.0) internal successors, (3346), 7 states have internal predecessors, (3346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:44,548 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 478.0) internal successors, (3346), 7 states have internal predecessors, (3346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:44,549 INFO L175 Difference]: Start difference. First operand has 291 places, 308 transitions, 929 flow. Second operand 6 states and 2608 transitions. [2023-11-29 00:55:44,549 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 317 transitions, 1012 flow [2023-11-29 00:55:44,553 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 296 places, 317 transitions, 1012 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 00:55:44,557 INFO L231 Difference]: Finished difference. Result has 297 places, 307 transitions, 935 flow [2023-11-29 00:55:44,558 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=478, PETRI_DIFFERENCE_MINUEND_FLOW=923, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=307, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=303, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=935, PETRI_PLACES=297, PETRI_TRANSITIONS=307} [2023-11-29 00:55:44,558 INFO L281 CegarLoopForPetriNet]: 310 programPoint places, -13 predicate places. [2023-11-29 00:55:44,558 INFO L495 AbstractCegarLoop]: Abstraction has has 297 places, 307 transitions, 935 flow [2023-11-29 00:55:44,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 431.6) internal successors, (2158), 5 states have internal predecessors, (2158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:44,559 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:55:44,559 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:55:44,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-29 00:55:44,559 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread_usbErr4ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-29 00:55:44,560 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:55:44,560 INFO L85 PathProgramCache]: Analyzing trace with hash 497619703, now seen corresponding path program 1 times [2023-11-29 00:55:44,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:55:44,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124826199] [2023-11-29 00:55:44,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:55:44,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:55:44,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:55:44,692 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:55:44,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:55:44,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124826199] [2023-11-29 00:55:44,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124826199] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:55:44,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:55:44,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 00:55:44,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483039112] [2023-11-29 00:55:44,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:55:44,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 00:55:44,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:55:44,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 00:55:44,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:55:44,718 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 428 out of 478 [2023-11-29 00:55:44,720 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 297 places, 307 transitions, 935 flow. Second operand has 5 states, 5 states have (on average 430.0) internal successors, (2150), 5 states have internal predecessors, (2150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:44,720 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:55:44,720 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 428 of 478 [2023-11-29 00:55:44,720 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:55:45,155 INFO L124 PetriNetUnfolderBase]: 267/2496 cut-off events. [2023-11-29 00:55:45,155 INFO L125 PetriNetUnfolderBase]: For 683/729 co-relation queries the response was YES. [2023-11-29 00:55:45,167 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3841 conditions, 2496 events. 267/2496 cut-off events. For 683/729 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 18452 event pairs, 55 based on Foata normal form. 7/2267 useless extension candidates. Maximal degree in co-relation 3746. Up to 194 conditions per place. [2023-11-29 00:55:45,172 INFO L140 encePairwiseOnDemand]: 472/478 looper letters, 26 selfloop transitions, 5 changer transitions 0/314 dead transitions. [2023-11-29 00:55:45,173 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 301 places, 314 transitions, 1006 flow [2023-11-29 00:55:45,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 00:55:45,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 00:55:45,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2599 transitions. [2023-11-29 00:55:45,180 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9062064156206415 [2023-11-29 00:55:45,180 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2599 transitions. [2023-11-29 00:55:45,180 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2599 transitions. [2023-11-29 00:55:45,182 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:55:45,182 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2599 transitions. [2023-11-29 00:55:45,188 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 433.1666666666667) internal successors, (2599), 6 states have internal predecessors, (2599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:45,194 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 478.0) internal successors, (3346), 7 states have internal predecessors, (3346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:45,195 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 478.0) internal successors, (3346), 7 states have internal predecessors, (3346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:45,195 INFO L175 Difference]: Start difference. First operand has 297 places, 307 transitions, 935 flow. Second operand 6 states and 2599 transitions. [2023-11-29 00:55:45,195 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 301 places, 314 transitions, 1006 flow [2023-11-29 00:55:45,201 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 298 places, 314 transitions, 994 flow, removed 3 selfloop flow, removed 3 redundant places. [2023-11-29 00:55:45,206 INFO L231 Difference]: Finished difference. Result has 298 places, 305 transitions, 923 flow [2023-11-29 00:55:45,206 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=478, PETRI_DIFFERENCE_MINUEND_FLOW=913, PETRI_DIFFERENCE_MINUEND_PLACES=293, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=305, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=300, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=923, PETRI_PLACES=298, PETRI_TRANSITIONS=305} [2023-11-29 00:55:45,207 INFO L281 CegarLoopForPetriNet]: 310 programPoint places, -12 predicate places. [2023-11-29 00:55:45,207 INFO L495 AbstractCegarLoop]: Abstraction has has 298 places, 305 transitions, 923 flow [2023-11-29 00:55:45,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 430.0) internal successors, (2150), 5 states have internal predecessors, (2150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:45,208 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:55:45,208 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:55:45,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-29 00:55:45,209 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread_usbErr4ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-29 00:55:45,209 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:55:45,209 INFO L85 PathProgramCache]: Analyzing trace with hash 919228448, now seen corresponding path program 1 times [2023-11-29 00:55:45,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:55:45,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462171944] [2023-11-29 00:55:45,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:55:45,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:55:45,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:55:45,781 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-29 00:55:45,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:55:45,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462171944] [2023-11-29 00:55:45,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462171944] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:55:45,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:55:45,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 00:55:45,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812419925] [2023-11-29 00:55:45,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:55:45,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 00:55:45,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:55:45,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 00:55:45,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 00:55:45,930 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 425 out of 478 [2023-11-29 00:55:45,932 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 305 transitions, 923 flow. Second operand has 6 states, 6 states have (on average 426.3333333333333) internal successors, (2558), 6 states have internal predecessors, (2558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:45,933 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:55:45,933 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 425 of 478 [2023-11-29 00:55:45,933 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:55:46,594 INFO L124 PetriNetUnfolderBase]: 460/3873 cut-off events. [2023-11-29 00:55:46,594 INFO L125 PetriNetUnfolderBase]: For 1339/1519 co-relation queries the response was YES. [2023-11-29 00:55:46,605 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5943 conditions, 3873 events. 460/3873 cut-off events. For 1339/1519 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 28703 event pairs, 42 based on Foata normal form. 4/3470 useless extension candidates. Maximal degree in co-relation 5849. Up to 360 conditions per place. [2023-11-29 00:55:46,613 INFO L140 encePairwiseOnDemand]: 473/478 looper letters, 23 selfloop transitions, 4 changer transitions 0/318 dead transitions. [2023-11-29 00:55:46,613 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 302 places, 318 transitions, 1007 flow [2023-11-29 00:55:46,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 00:55:46,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 00:55:46,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2578 transitions. [2023-11-29 00:55:46,619 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.898884239888424 [2023-11-29 00:55:46,619 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2578 transitions. [2023-11-29 00:55:46,620 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2578 transitions. [2023-11-29 00:55:46,621 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:55:46,621 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2578 transitions. [2023-11-29 00:55:46,627 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 429.6666666666667) internal successors, (2578), 6 states have internal predecessors, (2578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:46,632 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 478.0) internal successors, (3346), 7 states have internal predecessors, (3346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:46,634 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 478.0) internal successors, (3346), 7 states have internal predecessors, (3346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:46,634 INFO L175 Difference]: Start difference. First operand has 298 places, 305 transitions, 923 flow. Second operand 6 states and 2578 transitions. [2023-11-29 00:55:46,634 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 302 places, 318 transitions, 1007 flow [2023-11-29 00:55:46,640 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 318 transitions, 988 flow, removed 4 selfloop flow, removed 5 redundant places. [2023-11-29 00:55:46,645 INFO L231 Difference]: Finished difference. Result has 301 places, 308 transitions, 933 flow [2023-11-29 00:55:46,645 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=478, PETRI_DIFFERENCE_MINUEND_FLOW=902, PETRI_DIFFERENCE_MINUEND_PLACES=292, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=304, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=300, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=933, PETRI_PLACES=301, PETRI_TRANSITIONS=308} [2023-11-29 00:55:46,646 INFO L281 CegarLoopForPetriNet]: 310 programPoint places, -9 predicate places. [2023-11-29 00:55:46,646 INFO L495 AbstractCegarLoop]: Abstraction has has 301 places, 308 transitions, 933 flow [2023-11-29 00:55:46,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 426.3333333333333) internal successors, (2558), 6 states have internal predecessors, (2558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:46,647 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:55:46,647 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:55:46,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-29 00:55:46,647 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread_usbThread1of1ForFork0Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-29 00:55:46,648 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:55:46,648 INFO L85 PathProgramCache]: Analyzing trace with hash 418415591, now seen corresponding path program 1 times [2023-11-29 00:55:46,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:55:46,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904407159] [2023-11-29 00:55:46,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:55:46,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:55:46,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:55:46,769 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:55:46,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:55:46,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904407159] [2023-11-29 00:55:46,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904407159] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:55:46,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:55:46,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 00:55:46,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590630846] [2023-11-29 00:55:46,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:55:46,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:55:46,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:55:46,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:55:46,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:55:46,794 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 424 out of 478 [2023-11-29 00:55:46,795 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 301 places, 308 transitions, 933 flow. Second operand has 3 states, 3 states have (on average 426.3333333333333) internal successors, (1279), 3 states have internal predecessors, (1279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:46,795 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:55:46,795 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 424 of 478 [2023-11-29 00:55:46,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:55:46,955 INFO L124 PetriNetUnfolderBase]: 62/709 cut-off events. [2023-11-29 00:55:46,955 INFO L125 PetriNetUnfolderBase]: For 73/73 co-relation queries the response was YES. [2023-11-29 00:55:46,958 INFO L83 FinitePrefix]: Finished finitePrefix Result has 988 conditions, 709 events. 62/709 cut-off events. For 73/73 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1854 event pairs, 0 based on Foata normal form. 18/663 useless extension candidates. Maximal degree in co-relation 894. Up to 48 conditions per place. [2023-11-29 00:55:46,960 INFO L140 encePairwiseOnDemand]: 473/478 looper letters, 13 selfloop transitions, 2 changer transitions 54/275 dead transitions. [2023-11-29 00:55:46,960 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 275 transitions, 780 flow [2023-11-29 00:55:46,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:55:46,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 00:55:46,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1291 transitions. [2023-11-29 00:55:46,964 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.900278940027894 [2023-11-29 00:55:46,964 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1291 transitions. [2023-11-29 00:55:46,964 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1291 transitions. [2023-11-29 00:55:46,965 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:55:46,965 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1291 transitions. [2023-11-29 00:55:46,968 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 430.3333333333333) internal successors, (1291), 3 states have internal predecessors, (1291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:46,971 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 478.0) internal successors, (1912), 4 states have internal predecessors, (1912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:46,971 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 478.0) internal successors, (1912), 4 states have internal predecessors, (1912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:46,971 INFO L175 Difference]: Start difference. First operand has 301 places, 308 transitions, 933 flow. Second operand 3 states and 1291 transitions. [2023-11-29 00:55:46,972 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 275 transitions, 780 flow [2023-11-29 00:55:46,975 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 286 places, 275 transitions, 718 flow, removed 13 selfloop flow, removed 10 redundant places. [2023-11-29 00:55:46,978 INFO L231 Difference]: Finished difference. Result has 287 places, 219 transitions, 557 flow [2023-11-29 00:55:46,979 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=478, PETRI_DIFFERENCE_MINUEND_FLOW=682, PETRI_DIFFERENCE_MINUEND_PLACES=284, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=273, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=271, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=557, PETRI_PLACES=287, PETRI_TRANSITIONS=219} [2023-11-29 00:55:46,979 INFO L281 CegarLoopForPetriNet]: 310 programPoint places, -23 predicate places. [2023-11-29 00:55:46,979 INFO L495 AbstractCegarLoop]: Abstraction has has 287 places, 219 transitions, 557 flow [2023-11-29 00:55:46,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 426.3333333333333) internal successors, (1279), 3 states have internal predecessors, (1279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:46,980 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:55:46,980 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:55:46,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-29 00:55:46,980 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread_usbErr5ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-29 00:55:46,981 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:55:46,981 INFO L85 PathProgramCache]: Analyzing trace with hash -1138819374, now seen corresponding path program 1 times [2023-11-29 00:55:46,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:55:46,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226212286] [2023-11-29 00:55:46,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:55:46,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:55:47,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:55:47,065 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-29 00:55:47,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:55:47,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226212286] [2023-11-29 00:55:47,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226212286] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:55:47,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:55:47,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 00:55:47,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591692803] [2023-11-29 00:55:47,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:55:47,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:55:47,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:55:47,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:55:47,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:55:47,112 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 423 out of 478 [2023-11-29 00:55:47,114 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 287 places, 219 transitions, 557 flow. Second operand has 3 states, 3 states have (on average 426.3333333333333) internal successors, (1279), 3 states have internal predecessors, (1279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:47,114 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:55:47,114 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 423 of 478 [2023-11-29 00:55:47,114 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:55:47,251 INFO L124 PetriNetUnfolderBase]: 74/734 cut-off events. [2023-11-29 00:55:47,251 INFO L125 PetriNetUnfolderBase]: For 73/74 co-relation queries the response was YES. [2023-11-29 00:55:47,255 INFO L83 FinitePrefix]: Finished finitePrefix Result has 971 conditions, 734 events. 74/734 cut-off events. For 73/74 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 2073 event pairs, 16 based on Foata normal form. 0/662 useless extension candidates. Maximal degree in co-relation 882. Up to 93 conditions per place. [2023-11-29 00:55:47,257 INFO L140 encePairwiseOnDemand]: 475/478 looper letters, 16 selfloop transitions, 2 changer transitions 0/218 dead transitions. [2023-11-29 00:55:47,258 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 236 places, 218 transitions, 591 flow [2023-11-29 00:55:47,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:55:47,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 00:55:47,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1285 transitions. [2023-11-29 00:55:47,261 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.896094839609484 [2023-11-29 00:55:47,261 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1285 transitions. [2023-11-29 00:55:47,262 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1285 transitions. [2023-11-29 00:55:47,263 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:55:47,263 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1285 transitions. [2023-11-29 00:55:47,265 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 428.3333333333333) internal successors, (1285), 3 states have internal predecessors, (1285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:47,268 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 478.0) internal successors, (1912), 4 states have internal predecessors, (1912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:47,268 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 478.0) internal successors, (1912), 4 states have internal predecessors, (1912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:47,268 INFO L175 Difference]: Start difference. First operand has 287 places, 219 transitions, 557 flow. Second operand 3 states and 1285 transitions. [2023-11-29 00:55:47,268 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 236 places, 218 transitions, 591 flow [2023-11-29 00:55:47,271 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 218 transitions, 565 flow, removed 4 selfloop flow, removed 10 redundant places. [2023-11-29 00:55:47,274 INFO L231 Difference]: Finished difference. Result has 226 places, 218 transitions, 533 flow [2023-11-29 00:55:47,274 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=478, PETRI_DIFFERENCE_MINUEND_FLOW=529, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=216, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=533, PETRI_PLACES=226, PETRI_TRANSITIONS=218} [2023-11-29 00:55:47,275 INFO L281 CegarLoopForPetriNet]: 310 programPoint places, -84 predicate places. [2023-11-29 00:55:47,275 INFO L495 AbstractCegarLoop]: Abstraction has has 226 places, 218 transitions, 533 flow [2023-11-29 00:55:47,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 426.3333333333333) internal successors, (1279), 3 states have internal predecessors, (1279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:47,275 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:55:47,276 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:55:47,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-29 00:55:47,276 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread_usbErr6ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-29 00:55:47,276 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:55:47,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1866721898, now seen corresponding path program 1 times [2023-11-29 00:55:47,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:55:47,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355837911] [2023-11-29 00:55:47,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:55:47,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:55:47,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:55:47,360 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-29 00:55:47,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:55:47,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355837911] [2023-11-29 00:55:47,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355837911] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:55:47,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:55:47,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 00:55:47,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960001216] [2023-11-29 00:55:47,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:55:47,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:55:47,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:55:47,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:55:47,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:55:47,425 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 418 out of 478 [2023-11-29 00:55:47,426 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 218 transitions, 533 flow. Second operand has 3 states, 3 states have (on average 420.6666666666667) internal successors, (1262), 3 states have internal predecessors, (1262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:47,426 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:55:47,426 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 418 of 478 [2023-11-29 00:55:47,426 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:55:47,500 INFO L124 PetriNetUnfolderBase]: 28/415 cut-off events. [2023-11-29 00:55:47,500 INFO L125 PetriNetUnfolderBase]: For 6/10 co-relation queries the response was YES. [2023-11-29 00:55:47,502 INFO L83 FinitePrefix]: Finished finitePrefix Result has 528 conditions, 415 events. 28/415 cut-off events. For 6/10 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 517 event pairs, 0 based on Foata normal form. 0/383 useless extension candidates. Maximal degree in co-relation 440. Up to 24 conditions per place. [2023-11-29 00:55:47,503 INFO L140 encePairwiseOnDemand]: 475/478 looper letters, 0 selfloop transitions, 0 changer transitions 217/217 dead transitions. [2023-11-29 00:55:47,503 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 227 places, 217 transitions, 561 flow [2023-11-29 00:55:47,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:55:47,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 00:55:47,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1270 transitions. [2023-11-29 00:55:47,507 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8856345885634589 [2023-11-29 00:55:47,507 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1270 transitions. [2023-11-29 00:55:47,507 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1270 transitions. [2023-11-29 00:55:47,507 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:55:47,507 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1270 transitions. [2023-11-29 00:55:47,509 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 423.3333333333333) internal successors, (1270), 3 states have internal predecessors, (1270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:47,512 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 478.0) internal successors, (1912), 4 states have internal predecessors, (1912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:47,512 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 478.0) internal successors, (1912), 4 states have internal predecessors, (1912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:47,512 INFO L175 Difference]: Start difference. First operand has 226 places, 218 transitions, 533 flow. Second operand 3 states and 1270 transitions. [2023-11-29 00:55:47,512 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 227 places, 217 transitions, 561 flow [2023-11-29 00:55:47,514 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 217 transitions, 557 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 00:55:47,516 INFO L231 Difference]: Finished difference. Result has 225 places, 0 transitions, 0 flow [2023-11-29 00:55:47,516 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=478, PETRI_DIFFERENCE_MINUEND_FLOW=527, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=225, PETRI_TRANSITIONS=0} [2023-11-29 00:55:47,517 INFO L281 CegarLoopForPetriNet]: 310 programPoint places, -85 predicate places. [2023-11-29 00:55:47,517 INFO L495 AbstractCegarLoop]: Abstraction has has 225 places, 0 transitions, 0 flow [2023-11-29 00:55:47,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 420.6666666666667) internal successors, (1262), 3 states have internal predecessors, (1262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:55:47,520 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE (35 of 36 remaining) [2023-11-29 00:55:47,520 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE (34 of 36 remaining) [2023-11-29 00:55:47,520 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (33 of 36 remaining) [2023-11-29 00:55:47,520 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (32 of 36 remaining) [2023-11-29 00:55:47,520 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (31 of 36 remaining) [2023-11-29 00:55:47,521 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (30 of 36 remaining) [2023-11-29 00:55:47,521 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (29 of 36 remaining) [2023-11-29 00:55:47,521 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (28 of 36 remaining) [2023-11-29 00:55:47,521 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (27 of 36 remaining) [2023-11-29 00:55:47,521 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (26 of 36 remaining) [2023-11-29 00:55:47,521 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0ASSERT_VIOLATIONDATA_RACE (25 of 36 remaining) [2023-11-29 00:55:47,521 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr9ASSERT_VIOLATIONDATA_RACE (24 of 36 remaining) [2023-11-29 00:55:47,521 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1ASSERT_VIOLATIONDATA_RACE (23 of 36 remaining) [2023-11-29 00:55:47,521 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr10ASSERT_VIOLATIONDATA_RACE (22 of 36 remaining) [2023-11-29 00:55:47,522 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr3ASSERT_VIOLATIONDATA_RACE (21 of 36 remaining) [2023-11-29 00:55:47,522 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr8ASSERT_VIOLATIONDATA_RACE (20 of 36 remaining) [2023-11-29 00:55:47,522 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr4ASSERT_VIOLATIONDATA_RACE (19 of 36 remaining) [2023-11-29 00:55:47,522 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr5ASSERT_VIOLATIONDATA_RACE (18 of 36 remaining) [2023-11-29 00:55:47,522 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr6ASSERT_VIOLATIONDATA_RACE (17 of 36 remaining) [2023-11-29 00:55:47,523 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr2ASSERT_VIOLATIONDATA_RACE (16 of 36 remaining) [2023-11-29 00:55:47,523 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr7ASSERT_VIOLATIONDATA_RACE (15 of 36 remaining) [2023-11-29 00:55:47,523 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 36 remaining) [2023-11-29 00:55:47,523 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE (13 of 36 remaining) [2023-11-29 00:55:47,523 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE (12 of 36 remaining) [2023-11-29 00:55:47,523 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0ASSERT_VIOLATIONDATA_RACE (11 of 36 remaining) [2023-11-29 00:55:47,523 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr9ASSERT_VIOLATIONDATA_RACE (10 of 36 remaining) [2023-11-29 00:55:47,523 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1ASSERT_VIOLATIONDATA_RACE (9 of 36 remaining) [2023-11-29 00:55:47,523 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr10ASSERT_VIOLATIONDATA_RACE (8 of 36 remaining) [2023-11-29 00:55:47,524 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr3ASSERT_VIOLATIONDATA_RACE (7 of 36 remaining) [2023-11-29 00:55:47,524 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr8ASSERT_VIOLATIONDATA_RACE (6 of 36 remaining) [2023-11-29 00:55:47,524 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr4ASSERT_VIOLATIONDATA_RACE (5 of 36 remaining) [2023-11-29 00:55:47,524 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr5ASSERT_VIOLATIONDATA_RACE (4 of 36 remaining) [2023-11-29 00:55:47,524 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr6ASSERT_VIOLATIONDATA_RACE (3 of 36 remaining) [2023-11-29 00:55:47,524 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr2ASSERT_VIOLATIONDATA_RACE (2 of 36 remaining) [2023-11-29 00:55:47,524 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr7ASSERT_VIOLATIONDATA_RACE (1 of 36 remaining) [2023-11-29 00:55:47,524 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbThread1of1ForFork0Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 36 remaining) [2023-11-29 00:55:47,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-29 00:55:47,525 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:55:47,530 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-29 00:55:47,531 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 00:55:47,536 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 12:55:47 BasicIcfg [2023-11-29 00:55:47,536 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 00:55:47,536 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 00:55:47,537 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 00:55:47,537 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 00:55:47,537 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:55:35" (3/4) ... [2023-11-29 00:55:47,539 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 00:55:47,542 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread_ath9k [2023-11-29 00:55:47,542 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread_usb [2023-11-29 00:55:47,548 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2023-11-29 00:55:47,548 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-29 00:55:47,549 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-29 00:55:47,549 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 00:55:47,638 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d8f4de-81c8-429e-9749-5fd8865e1206/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 00:55:47,639 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d8f4de-81c8-429e-9749-5fd8865e1206/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 00:55:47,639 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 00:55:47,640 INFO L158 Benchmark]: Toolchain (without parser) took 13650.24ms. Allocated memory was 167.8MB in the beginning and 490.7MB in the end (delta: 323.0MB). Free memory was 104.8MB in the beginning and 203.0MB in the end (delta: -98.1MB). Peak memory consumption was 227.8MB. Max. memory is 16.1GB. [2023-11-29 00:55:47,640 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 94.4MB. Free memory is still 49.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 00:55:47,641 INFO L158 Benchmark]: CACSL2BoogieTranslator took 883.46ms. Allocated memory is still 167.8MB. Free memory was 104.7MB in the beginning and 91.9MB in the end (delta: 12.8MB). Peak memory consumption was 19.2MB. Max. memory is 16.1GB. [2023-11-29 00:55:47,641 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.38ms. Allocated memory is still 167.8MB. Free memory was 91.9MB in the beginning and 87.1MB in the end (delta: 4.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-29 00:55:47,641 INFO L158 Benchmark]: Boogie Preprocessor took 58.14ms. Allocated memory is still 167.8MB. Free memory was 87.1MB in the beginning and 83.6MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 00:55:47,642 INFO L158 Benchmark]: RCFGBuilder took 704.41ms. Allocated memory is still 167.8MB. Free memory was 83.6MB in the beginning and 109.3MB in the end (delta: -25.7MB). Peak memory consumption was 10.2MB. Max. memory is 16.1GB. [2023-11-29 00:55:47,642 INFO L158 Benchmark]: TraceAbstraction took 11821.40ms. Allocated memory was 167.8MB in the beginning and 490.7MB in the end (delta: 323.0MB). Free memory was 108.0MB in the beginning and 208.2MB in the end (delta: -100.2MB). Peak memory consumption was 221.4MB. Max. memory is 16.1GB. [2023-11-29 00:55:47,642 INFO L158 Benchmark]: Witness Printer took 102.79ms. Allocated memory is still 490.7MB. Free memory was 208.2MB in the beginning and 203.0MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-29 00:55:47,644 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 94.4MB. Free memory is still 49.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 883.46ms. Allocated memory is still 167.8MB. Free memory was 104.7MB in the beginning and 91.9MB in the end (delta: 12.8MB). Peak memory consumption was 19.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.38ms. Allocated memory is still 167.8MB. Free memory was 91.9MB in the beginning and 87.1MB in the end (delta: 4.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.14ms. Allocated memory is still 167.8MB. Free memory was 87.1MB in the beginning and 83.6MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 704.41ms. Allocated memory is still 167.8MB. Free memory was 83.6MB in the beginning and 109.3MB in the end (delta: -25.7MB). Peak memory consumption was 10.2MB. Max. memory is 16.1GB. * TraceAbstraction took 11821.40ms. Allocated memory was 167.8MB in the beginning and 490.7MB in the end (delta: 323.0MB). Free memory was 108.0MB in the beginning and 208.2MB in the end (delta: -100.2MB). Peak memory consumption was 221.4MB. Max. memory is 16.1GB. * Witness Printer took 102.79ms. Allocated memory is still 490.7MB. Free memory was 208.2MB in the beginning and 203.0MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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, 484 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: 11.7s, OverallIterations: 19, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 8.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1342 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 553 mSDsluCounter, 257 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 99 mSDsCounter, 151 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1650 IncrementalHoareTripleChecker+Invalid, 1801 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 151 mSolverCounterUnsat, 158 mSDtfsCounter, 1650 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=935occurred in iteration=14, InterpolantAutomatonStates: 77, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 1658 NumberOfCodeBlocks, 1658 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 1639 ConstructedInterpolants, 0 QuantifiedInterpolants, 1953 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 19 InterpolantComputations, 19 PerfectInterpolantSequences, 46/46 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! [2023-11-29 00:55:47,664 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d8f4de-81c8-429e-9749-5fd8865e1206/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE