./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 2329fc70 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_859d36a5-0729-461d-a4fe-c8bd4a4e0a22/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_859d36a5-0729-461d-a4fe-c8bd4a4e0a22/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_859d36a5-0729-461d-a4fe-c8bd4a4e0a22/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_859d36a5-0729-461d-a4fe-c8bd4a4e0a22/bin/uautomizer-uyxdKDjOR8/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_859d36a5-0729-461d-a4fe-c8bd4a4e0a22/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_859d36a5-0729-461d-a4fe-c8bd4a4e0a22/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a9552a698db9701543deeff63aa990ab8fc4764b65dba5035623425bdf77554d --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 21:00:09,005 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 21:00:09,006 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 21:00:09,019 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 21:00:09,019 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 21:00:09,020 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 21:00:09,021 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 21:00:09,022 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 21:00:09,023 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 21:00:09,023 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 21:00:09,024 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 21:00:09,025 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 21:00:09,025 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 21:00:09,026 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 21:00:09,027 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 21:00:09,027 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 21:00:09,028 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 21:00:09,029 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 21:00:09,030 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 21:00:09,031 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 21:00:09,032 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 21:00:09,033 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 21:00:09,033 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 21:00:09,034 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 21:00:09,036 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 21:00:09,036 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 21:00:09,036 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 21:00:09,037 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 21:00:09,037 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 21:00:09,038 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 21:00:09,038 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 21:00:09,039 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 21:00:09,039 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 21:00:09,040 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 21:00:09,040 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 21:00:09,041 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 21:00:09,041 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 21:00:09,041 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 21:00:09,041 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 21:00:09,042 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 21:00:09,042 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 21:00:09,043 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_859d36a5-0729-461d-a4fe-c8bd4a4e0a22/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-12-13 21:00:09,058 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 21:00:09,058 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 21:00:09,058 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 21:00:09,058 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 21:00:09,059 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 21:00:09,059 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 21:00:09,059 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 21:00:09,059 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 21:00:09,060 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 21:00:09,060 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 21:00:09,060 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 21:00:09,060 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 21:00:09,060 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 21:00:09,061 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 21:00:09,061 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 21:00:09,061 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 21:00:09,062 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 21:00:09,062 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 21:00:09,062 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-13 21:00:09,062 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 21:00:09,063 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 21:00:09,063 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 21:00:09,063 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 21:00:09,064 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 21:00:09,064 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 21:00:09,064 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 21:00:09,064 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:00:09,064 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 21:00:09,064 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 21:00:09,065 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 21:00:09,065 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 21:00:09,065 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 21:00:09,065 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 21:00:09,065 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 21:00:09,065 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 21:00:09,065 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 21:00:09,065 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 21:00:09,066 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_859d36a5-0729-461d-a4fe-c8bd4a4e0a22/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_859d36a5-0729-461d-a4fe-c8bd4a4e0a22/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a9552a698db9701543deeff63aa990ab8fc4764b65dba5035623425bdf77554d [2022-12-13 21:00:09,228 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 21:00:09,249 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 21:00:09,251 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 21:00:09,252 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 21:00:09,252 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 21:00:09,253 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_859d36a5-0729-461d-a4fe-c8bd4a4e0a22/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/ldv-races/race-4_1-thread_local_vars.i [2022-12-13 21:00:11,838 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 21:00:12,104 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 21:00:12,104 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_859d36a5-0729-461d-a4fe-c8bd4a4e0a22/sv-benchmarks/c/ldv-races/race-4_1-thread_local_vars.i [2022-12-13 21:00:12,123 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_859d36a5-0729-461d-a4fe-c8bd4a4e0a22/bin/uautomizer-uyxdKDjOR8/data/5c42957a7/e3a045a6b59b4bf9976b8f557dcce2a3/FLAG46aa5407e [2022-12-13 21:00:12,442 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_859d36a5-0729-461d-a4fe-c8bd4a4e0a22/bin/uautomizer-uyxdKDjOR8/data/5c42957a7/e3a045a6b59b4bf9976b8f557dcce2a3 [2022-12-13 21:00:12,451 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 21:00:12,456 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 21:00:12,460 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 21:00:12,461 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 21:00:12,473 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 21:00:12,475 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:00:12" (1/1) ... [2022-12-13 21:00:12,479 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e3bc924 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:00:12, skipping insertion in model container [2022-12-13 21:00:12,480 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:00:12" (1/1) ... [2022-12-13 21:00:12,494 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 21:00:12,538 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 21:00:13,056 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_859d36a5-0729-461d-a4fe-c8bd4a4e0a22/sv-benchmarks/c/ldv-races/race-4_1-thread_local_vars.i[76081,76094] [2022-12-13 21:00:13,091 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:00:13,100 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 21:00:13,133 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_859d36a5-0729-461d-a4fe-c8bd4a4e0a22/sv-benchmarks/c/ldv-races/race-4_1-thread_local_vars.i[76081,76094] [2022-12-13 21:00:13,145 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:00:13,247 INFO L208 MainTranslator]: Completed translation [2022-12-13 21:00:13,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:00:13 WrapperNode [2022-12-13 21:00:13,247 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 21:00:13,248 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 21:00:13,248 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 21:00:13,248 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 21:00:13,255 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:00:13" (1/1) ... [2022-12-13 21:00:13,280 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:00:13" (1/1) ... [2022-12-13 21:00:13,307 INFO L138 Inliner]: procedures = 486, calls = 43, calls flagged for inlining = 15, calls inlined = 15, statements flattened = 265 [2022-12-13 21:00:13,308 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 21:00:13,308 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 21:00:13,308 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 21:00:13,308 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 21:00:13,315 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:00:13" (1/1) ... [2022-12-13 21:00:13,315 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:00:13" (1/1) ... [2022-12-13 21:00:13,319 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:00:13" (1/1) ... [2022-12-13 21:00:13,320 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:00:13" (1/1) ... [2022-12-13 21:00:13,330 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:00:13" (1/1) ... [2022-12-13 21:00:13,333 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:00:13" (1/1) ... [2022-12-13 21:00:13,336 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:00:13" (1/1) ... [2022-12-13 21:00:13,338 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:00:13" (1/1) ... [2022-12-13 21:00:13,342 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 21:00:13,342 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 21:00:13,343 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 21:00:13,343 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 21:00:13,343 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:00:13" (1/1) ... [2022-12-13 21:00:13,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:00:13,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_859d36a5-0729-461d-a4fe-c8bd4a4e0a22/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:00:13,369 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_859d36a5-0729-461d-a4fe-c8bd4a4e0a22/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 21:00:13,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_859d36a5-0729-461d-a4fe-c8bd4a4e0a22/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 21:00:13,405 INFO L130 BoogieDeclarations]: Found specification of procedure thread_usb [2022-12-13 21:00:13,405 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_usb [2022-12-13 21:00:13,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 21:00:13,405 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 21:00:13,405 INFO L130 BoogieDeclarations]: Found specification of procedure thread_ath9k [2022-12-13 21:00:13,406 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_ath9k [2022-12-13 21:00:13,406 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 21:00:13,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 21:00:13,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-13 21:00:13,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 21:00:13,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 21:00:13,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 21:00:13,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 21:00:13,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 21:00:13,408 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 21:00:13,643 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 21:00:13,644 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 21:00:13,925 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 21:00:13,932 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 21:00:13,932 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 21:00:13,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:00:13 BoogieIcfgContainer [2022-12-13 21:00:13,934 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 21:00:13,936 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 21:00:13,936 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 21:00:13,938 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 21:00:13,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 09:00:12" (1/3) ... [2022-12-13 21:00:13,939 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6109f9be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:00:13, skipping insertion in model container [2022-12-13 21:00:13,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:00:13" (2/3) ... [2022-12-13 21:00:13,939 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6109f9be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:00:13, skipping insertion in model container [2022-12-13 21:00:13,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:00:13" (3/3) ... [2022-12-13 21:00:13,940 INFO L112 eAbstractionObserver]: Analyzing ICFG race-4_1-thread_local_vars.i [2022-12-13 21:00:13,947 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 21:00:13,954 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 21:00:13,954 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2022-12-13 21:00:13,954 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 21:00:14,008 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2022-12-13 21:00:14,037 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 418 places, 448 transitions, 926 flow [2022-12-13 21:00:14,126 INFO L130 PetriNetUnfolder]: 33/459 cut-off events. [2022-12-13 21:00:14,126 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-13 21:00:14,132 INFO L83 FinitePrefix]: Finished finitePrefix Result has 471 conditions, 459 events. 33/459 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1260 event pairs, 0 based on Foata normal form. 0/391 useless extension candidates. Maximal degree in co-relation 312. Up to 11 conditions per place. [2022-12-13 21:00:14,132 INFO L82 GeneralOperation]: Start removeDead. Operand has 418 places, 448 transitions, 926 flow [2022-12-13 21:00:14,137 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 293 places, 310 transitions, 637 flow [2022-12-13 21:00:14,140 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 21:00:14,148 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 293 places, 310 transitions, 637 flow [2022-12-13 21:00:14,150 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 293 places, 310 transitions, 637 flow [2022-12-13 21:00:14,150 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 293 places, 310 transitions, 637 flow [2022-12-13 21:00:14,203 INFO L130 PetriNetUnfolder]: 33/459 cut-off events. [2022-12-13 21:00:14,204 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-13 21:00:14,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 471 conditions, 459 events. 33/459 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1259 event pairs, 0 based on Foata normal form. 0/391 useless extension candidates. Maximal degree in co-relation 312. Up to 11 conditions per place. [2022-12-13 21:00:14,212 INFO L119 LiptonReduction]: Number of co-enabled transitions 18816 [2022-12-13 21:00:19,684 INFO L134 LiptonReduction]: Checked pairs total: 46406 [2022-12-13 21:00:19,684 INFO L136 LiptonReduction]: Total number of compositions: 354 [2022-12-13 21:00:19,698 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 21:00:19,704 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@34a198ef, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 21:00:19,704 INFO L358 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2022-12-13 21:00:19,705 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 21:00:19,706 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 21:00:19,706 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:00:19,706 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 21:00:19,707 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-12-13 21:00:19,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:00:19,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1288, now seen corresponding path program 1 times [2022-12-13 21:00:19,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:00:19,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480269979] [2022-12-13 21:00:19,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:00:19,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:00:19,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:00:19,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:00:19,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:00:19,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480269979] [2022-12-13 21:00:19,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480269979] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:00:19,860 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:00:19,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 21:00:19,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995022928] [2022-12-13 21:00:19,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:00:19,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 21:00:19,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:00:19,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 21:00:19,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 21:00:19,885 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 418 out of 802 [2022-12-13 21:00:19,888 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 75 transitions, 167 flow. Second operand has 2 states, 2 states have (on average 418.5) internal successors, (837), 2 states have internal predecessors, (837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:00:19,888 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:00:19,888 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 418 of 802 [2022-12-13 21:00:19,889 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:00:20,067 INFO L130 PetriNetUnfolder]: 664/1355 cut-off events. [2022-12-13 21:00:20,068 INFO L131 PetriNetUnfolder]: For 25/25 co-relation queries the response was YES. [2022-12-13 21:00:20,069 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2371 conditions, 1355 events. 664/1355 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 7976 event pairs, 403 based on Foata normal form. 44/902 useless extension candidates. Maximal degree in co-relation 2178. Up to 976 conditions per place. [2022-12-13 21:00:20,073 INFO L137 encePairwiseOnDemand]: 788/802 looper letters, 33 selfloop transitions, 0 changer transitions 0/61 dead transitions. [2022-12-13 21:00:20,073 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 61 transitions, 205 flow [2022-12-13 21:00:20,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 21:00:20,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 21:00:20,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 883 transitions. [2022-12-13 21:00:20,086 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.550498753117207 [2022-12-13 21:00:20,087 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 883 transitions. [2022-12-13 21:00:20,087 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 883 transitions. [2022-12-13 21:00:20,089 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:00:20,091 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 883 transitions. [2022-12-13 21:00:20,095 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 441.5) internal successors, (883), 2 states have internal predecessors, (883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:00:20,101 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 802.0) internal successors, (2406), 3 states have internal predecessors, (2406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:00:20,102 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 802.0) internal successors, (2406), 3 states have internal predecessors, (2406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:00:20,103 INFO L175 Difference]: Start difference. First operand has 70 places, 75 transitions, 167 flow. Second operand 2 states and 883 transitions. [2022-12-13 21:00:20,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 61 transitions, 205 flow [2022-12-13 21:00:20,106 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 61 transitions, 201 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 21:00:20,107 INFO L231 Difference]: Finished difference. Result has 57 places, 61 transitions, 135 flow [2022-12-13 21:00:20,109 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=802, PETRI_DIFFERENCE_MINUEND_FLOW=135, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=135, PETRI_PLACES=57, PETRI_TRANSITIONS=61} [2022-12-13 21:00:20,111 INFO L288 CegarLoopForPetriNet]: 70 programPoint places, -13 predicate places. [2022-12-13 21:00:20,112 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 61 transitions, 135 flow [2022-12-13 21:00:20,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 418.5) internal successors, (837), 2 states have internal predecessors, (837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:00:20,112 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:00:20,112 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 21:00:20,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 21:00:20,113 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread_usbErr9ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-12-13 21:00:20,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:00:20,113 INFO L85 PathProgramCache]: Analyzing trace with hash -559952625, now seen corresponding path program 1 times [2022-12-13 21:00:20,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:00:20,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253014119] [2022-12-13 21:00:20,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:00:20,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:00:20,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:00:20,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:00:20,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:00:20,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253014119] [2022-12-13 21:00:20,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253014119] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:00:20,224 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:00:20,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 21:00:20,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261599646] [2022-12-13 21:00:20,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:00:20,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:00:20,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:00:20,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:00:20,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:00:20,297 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 398 out of 802 [2022-12-13 21:00:20,298 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 61 transitions, 135 flow. Second operand has 3 states, 3 states have (on average 400.0) internal successors, (1200), 3 states have internal predecessors, (1200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:00:20,299 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:00:20,299 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 398 of 802 [2022-12-13 21:00:20,299 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:00:20,495 INFO L130 PetriNetUnfolder]: 958/1742 cut-off events. [2022-12-13 21:00:20,495 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2022-12-13 21:00:20,496 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3200 conditions, 1742 events. 958/1742 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 9485 event pairs, 501 based on Foata normal form. 0/1131 useless extension candidates. Maximal degree in co-relation 3196. Up to 1226 conditions per place. [2022-12-13 21:00:20,501 INFO L137 encePairwiseOnDemand]: 796/802 looper letters, 44 selfloop transitions, 5 changer transitions 0/73 dead transitions. [2022-12-13 21:00:20,501 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 73 transitions, 257 flow [2022-12-13 21:00:20,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:00:20,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 21:00:20,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1244 transitions. [2022-12-13 21:00:20,508 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5170407315045719 [2022-12-13 21:00:20,508 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1244 transitions. [2022-12-13 21:00:20,508 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1244 transitions. [2022-12-13 21:00:20,509 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:00:20,509 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1244 transitions. [2022-12-13 21:00:20,511 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 414.6666666666667) internal successors, (1244), 3 states have internal predecessors, (1244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:00:20,514 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 802.0) internal successors, (3208), 4 states have internal predecessors, (3208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:00:20,515 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 802.0) internal successors, (3208), 4 states have internal predecessors, (3208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:00:20,515 INFO L175 Difference]: Start difference. First operand has 57 places, 61 transitions, 135 flow. Second operand 3 states and 1244 transitions. [2022-12-13 21:00:20,516 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 73 transitions, 257 flow [2022-12-13 21:00:20,516 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 73 transitions, 257 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 21:00:20,517 INFO L231 Difference]: Finished difference. Result has 61 places, 65 transitions, 173 flow [2022-12-13 21:00:20,518 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=802, PETRI_DIFFERENCE_MINUEND_FLOW=135, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=173, PETRI_PLACES=61, PETRI_TRANSITIONS=65} [2022-12-13 21:00:20,518 INFO L288 CegarLoopForPetriNet]: 70 programPoint places, -9 predicate places. [2022-12-13 21:00:20,518 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 65 transitions, 173 flow [2022-12-13 21:00:20,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 400.0) internal successors, (1200), 3 states have internal predecessors, (1200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:00:20,519 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:00:20,519 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:00:20,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 21:00:20,519 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-12-13 21:00:20,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:00:20,520 INFO L85 PathProgramCache]: Analyzing trace with hash 523595670, now seen corresponding path program 1 times [2022-12-13 21:00:20,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:00:20,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884496889] [2022-12-13 21:00:20,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:00:20,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:00:20,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:00:20,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:00:20,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:00:20,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884496889] [2022-12-13 21:00:20,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884496889] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:00:20,580 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:00:20,580 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 21:00:20,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771563235] [2022-12-13 21:00:20,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:00:20,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:00:20,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:00:20,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:00:20,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:00:20,590 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 413 out of 802 [2022-12-13 21:00:20,592 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 65 transitions, 173 flow. Second operand has 3 states, 3 states have (on average 413.6666666666667) internal successors, (1241), 3 states have internal predecessors, (1241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:00:20,592 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:00:20,592 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 413 of 802 [2022-12-13 21:00:20,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:00:20,729 INFO L130 PetriNetUnfolder]: 761/1532 cut-off events. [2022-12-13 21:00:20,729 INFO L131 PetriNetUnfolder]: For 198/209 co-relation queries the response was YES. [2022-12-13 21:00:20,731 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2994 conditions, 1532 events. 761/1532 cut-off events. For 198/209 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 9194 event pairs, 436 based on Foata normal form. 0/1006 useless extension candidates. Maximal degree in co-relation 2988. Up to 1095 conditions per place. [2022-12-13 21:00:20,735 INFO L137 encePairwiseOnDemand]: 799/802 looper letters, 34 selfloop transitions, 0 changer transitions 2/66 dead transitions. [2022-12-13 21:00:20,735 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 66 transitions, 247 flow [2022-12-13 21:00:20,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:00:20,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 21:00:20,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1274 transitions. [2022-12-13 21:00:20,740 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5295095594347464 [2022-12-13 21:00:20,741 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1274 transitions. [2022-12-13 21:00:20,741 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1274 transitions. [2022-12-13 21:00:20,741 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:00:20,741 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1274 transitions. [2022-12-13 21:00:20,743 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 424.6666666666667) internal successors, (1274), 3 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:00:20,746 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 802.0) internal successors, (3208), 4 states have internal predecessors, (3208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:00:20,747 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 802.0) internal successors, (3208), 4 states have internal predecessors, (3208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:00:20,747 INFO L175 Difference]: Start difference. First operand has 61 places, 65 transitions, 173 flow. Second operand 3 states and 1274 transitions. [2022-12-13 21:00:20,747 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 66 transitions, 247 flow [2022-12-13 21:00:20,749 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 66 transitions, 237 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 21:00:20,750 INFO L231 Difference]: Finished difference. Result has 62 places, 64 transitions, 165 flow [2022-12-13 21:00:20,750 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=802, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=165, PETRI_PLACES=62, PETRI_TRANSITIONS=64} [2022-12-13 21:00:20,751 INFO L288 CegarLoopForPetriNet]: 70 programPoint places, -8 predicate places. [2022-12-13 21:00:20,751 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 64 transitions, 165 flow [2022-12-13 21:00:20,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 413.6666666666667) internal successors, (1241), 3 states have internal predecessors, (1241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:00:20,751 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:00:20,751 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:00:20,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 21:00:20,752 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread_usbErr10ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-12-13 21:00:20,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:00:20,752 INFO L85 PathProgramCache]: Analyzing trace with hash -1243529661, now seen corresponding path program 1 times [2022-12-13 21:00:20,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:00:20,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990809238] [2022-12-13 21:00:20,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:00:20,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:00:20,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:00:20,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:00:20,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:00:20,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990809238] [2022-12-13 21:00:20,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990809238] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:00:20,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:00:20,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 21:00:20,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028563630] [2022-12-13 21:00:20,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:00:20,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:00:20,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:00:20,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:00:20,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:00:20,843 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 386 out of 802 [2022-12-13 21:00:20,844 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 64 transitions, 165 flow. Second operand has 3 states, 3 states have (on average 388.3333333333333) internal successors, (1165), 3 states have internal predecessors, (1165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:00:20,845 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:00:20,845 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 386 of 802 [2022-12-13 21:00:20,845 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:00:21,048 INFO L130 PetriNetUnfolder]: 1185/2065 cut-off events. [2022-12-13 21:00:21,049 INFO L131 PetriNetUnfolder]: For 289/345 co-relation queries the response was YES. [2022-12-13 21:00:21,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4541 conditions, 2065 events. 1185/2065 cut-off events. For 289/345 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 10913 event pairs, 507 based on Foata normal form. 13/1457 useless extension candidates. Maximal degree in co-relation 4534. Up to 1361 conditions per place. [2022-12-13 21:00:21,056 INFO L137 encePairwiseOnDemand]: 789/802 looper letters, 62 selfloop transitions, 13 changer transitions 0/96 dead transitions. [2022-12-13 21:00:21,056 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 96 transitions, 396 flow [2022-12-13 21:00:21,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:00:21,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 21:00:21,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1231 transitions. [2022-12-13 21:00:21,062 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5116375727348296 [2022-12-13 21:00:21,062 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1231 transitions. [2022-12-13 21:00:21,062 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1231 transitions. [2022-12-13 21:00:21,062 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:00:21,063 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1231 transitions. [2022-12-13 21:00:21,064 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 410.3333333333333) internal successors, (1231), 3 states have internal predecessors, (1231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:00:21,067 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 802.0) internal successors, (3208), 4 states have internal predecessors, (3208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:00:21,068 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 802.0) internal successors, (3208), 4 states have internal predecessors, (3208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:00:21,069 INFO L175 Difference]: Start difference. First operand has 62 places, 64 transitions, 165 flow. Second operand 3 states and 1231 transitions. [2022-12-13 21:00:21,069 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 96 transitions, 396 flow [2022-12-13 21:00:21,070 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 96 transitions, 388 flow, removed 4 selfloop flow, removed 1 redundant places. [2022-12-13 21:00:21,071 INFO L231 Difference]: Finished difference. Result has 64 places, 75 transitions, 275 flow [2022-12-13 21:00:21,071 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=802, PETRI_DIFFERENCE_MINUEND_FLOW=161, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=275, PETRI_PLACES=64, PETRI_TRANSITIONS=75} [2022-12-13 21:00:21,072 INFO L288 CegarLoopForPetriNet]: 70 programPoint places, -6 predicate places. [2022-12-13 21:00:21,072 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 75 transitions, 275 flow [2022-12-13 21:00:21,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 388.3333333333333) internal successors, (1165), 3 states have internal predecessors, (1165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:00:21,073 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:00:21,073 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:00:21,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 21:00:21,073 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread_usbThread1of1ForFork1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-12-13 21:00:21,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:00:21,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1041597877, now seen corresponding path program 1 times [2022-12-13 21:00:21,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:00:21,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034891680] [2022-12-13 21:00:21,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:00:21,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:00:21,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:00:21,135 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:00:21,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:00:21,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034891680] [2022-12-13 21:00:21,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034891680] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:00:21,136 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:00:21,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 21:00:21,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513878005] [2022-12-13 21:00:21,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:00:21,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:00:21,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:00:21,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:00:21,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:00:21,153 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 404 out of 802 [2022-12-13 21:00:21,155 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 75 transitions, 275 flow. Second operand has 3 states, 3 states have (on average 406.6666666666667) internal successors, (1220), 3 states have internal predecessors, (1220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:00:21,155 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:00:21,155 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 404 of 802 [2022-12-13 21:00:21,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:00:21,310 INFO L130 PetriNetUnfolder]: 862/1693 cut-off events. [2022-12-13 21:00:21,310 INFO L131 PetriNetUnfolder]: For 990/1041 co-relation queries the response was YES. [2022-12-13 21:00:21,313 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3950 conditions, 1693 events. 862/1693 cut-off events. For 990/1041 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 9906 event pairs, 349 based on Foata normal form. 12/1255 useless extension candidates. Maximal degree in co-relation 3942. Up to 931 conditions per place. [2022-12-13 21:00:21,318 INFO L137 encePairwiseOnDemand]: 796/802 looper letters, 48 selfloop transitions, 3 changer transitions 0/85 dead transitions. [2022-12-13 21:00:21,318 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 85 transitions, 401 flow [2022-12-13 21:00:21,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:00:21,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 21:00:21,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1258 transitions. [2022-12-13 21:00:21,323 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5228595178719867 [2022-12-13 21:00:21,323 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1258 transitions. [2022-12-13 21:00:21,323 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1258 transitions. [2022-12-13 21:00:21,324 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:00:21,324 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1258 transitions. [2022-12-13 21:00:21,325 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 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) [2022-12-13 21:00:21,328 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 802.0) internal successors, (3208), 4 states have internal predecessors, (3208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:00:21,329 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 802.0) internal successors, (3208), 4 states have internal predecessors, (3208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:00:21,329 INFO L175 Difference]: Start difference. First operand has 64 places, 75 transitions, 275 flow. Second operand 3 states and 1258 transitions. [2022-12-13 21:00:21,329 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 85 transitions, 401 flow [2022-12-13 21:00:21,331 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 85 transitions, 367 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-13 21:00:21,332 INFO L231 Difference]: Finished difference. Result has 63 places, 75 transitions, 261 flow [2022-12-13 21:00:21,332 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=802, PETRI_DIFFERENCE_MINUEND_FLOW=239, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=261, PETRI_PLACES=63, PETRI_TRANSITIONS=75} [2022-12-13 21:00:21,333 INFO L288 CegarLoopForPetriNet]: 70 programPoint places, -7 predicate places. [2022-12-13 21:00:21,333 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 75 transitions, 261 flow [2022-12-13 21:00:21,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 406.6666666666667) internal successors, (1220), 3 states have internal predecessors, (1220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:00:21,333 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:00:21,333 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:00:21,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 21:00:21,334 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-12-13 21:00:21,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:00:21,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1026351262, now seen corresponding path program 1 times [2022-12-13 21:00:21,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:00:21,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307515082] [2022-12-13 21:00:21,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:00:21,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:00:21,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:00:21,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:00:21,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:00:21,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307515082] [2022-12-13 21:00:21,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307515082] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:00:21,373 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:00:21,373 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 21:00:21,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925186331] [2022-12-13 21:00:21,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:00:21,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:00:21,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:00:21,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:00:21,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:00:21,423 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 397 out of 802 [2022-12-13 21:00:21,424 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 75 transitions, 261 flow. Second operand has 3 states, 3 states have (on average 399.6666666666667) internal successors, (1199), 3 states have internal predecessors, (1199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:00:21,424 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:00:21,425 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 397 of 802 [2022-12-13 21:00:21,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:00:21,598 INFO L130 PetriNetUnfolder]: 962/1768 cut-off events. [2022-12-13 21:00:21,598 INFO L131 PetriNetUnfolder]: For 744/819 co-relation queries the response was YES. [2022-12-13 21:00:21,600 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4207 conditions, 1768 events. 962/1768 cut-off events. For 744/819 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 9610 event pairs, 476 based on Foata normal form. 30/1389 useless extension candidates. Maximal degree in co-relation 4199. Up to 1305 conditions per place. [2022-12-13 21:00:21,605 INFO L137 encePairwiseOnDemand]: 795/802 looper letters, 56 selfloop transitions, 11 changer transitions 0/95 dead transitions. [2022-12-13 21:00:21,605 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 95 transitions, 460 flow [2022-12-13 21:00:21,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:00:21,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 21:00:21,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1245 transitions. [2022-12-13 21:00:21,611 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5174563591022444 [2022-12-13 21:00:21,611 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1245 transitions. [2022-12-13 21:00:21,611 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1245 transitions. [2022-12-13 21:00:21,611 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:00:21,611 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1245 transitions. [2022-12-13 21:00:21,613 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 415.0) internal successors, (1245), 3 states have internal predecessors, (1245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:00:21,616 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 802.0) internal successors, (3208), 4 states have internal predecessors, (3208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:00:21,617 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 802.0) internal successors, (3208), 4 states have internal predecessors, (3208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:00:21,617 INFO L175 Difference]: Start difference. First operand has 63 places, 75 transitions, 261 flow. Second operand 3 states and 1245 transitions. [2022-12-13 21:00:21,617 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 95 transitions, 460 flow [2022-12-13 21:00:21,618 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 95 transitions, 452 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 21:00:21,619 INFO L231 Difference]: Finished difference. Result has 64 places, 82 transitions, 336 flow [2022-12-13 21:00:21,619 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=802, PETRI_DIFFERENCE_MINUEND_FLOW=255, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=336, PETRI_PLACES=64, PETRI_TRANSITIONS=82} [2022-12-13 21:00:21,619 INFO L288 CegarLoopForPetriNet]: 70 programPoint places, -6 predicate places. [2022-12-13 21:00:21,620 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 82 transitions, 336 flow [2022-12-13 21:00:21,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 399.6666666666667) internal successors, (1199), 3 states have internal predecessors, (1199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:00:21,620 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:00:21,620 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:00:21,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 21:00:21,620 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread_usbErr4ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-12-13 21:00:21,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:00:21,621 INFO L85 PathProgramCache]: Analyzing trace with hash 323766866, now seen corresponding path program 1 times [2022-12-13 21:00:21,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:00:21,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982647123] [2022-12-13 21:00:21,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:00:21,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:00:21,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:00:21,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:00:21,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:00:21,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982647123] [2022-12-13 21:00:21,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982647123] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:00:21,662 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:00:21,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 21:00:21,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517586806] [2022-12-13 21:00:21,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:00:21,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:00:21,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:00:21,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:00:21,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:00:21,683 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 402 out of 802 [2022-12-13 21:00:21,684 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 82 transitions, 336 flow. Second operand has 3 states, 3 states have (on average 403.6666666666667) internal successors, (1211), 3 states have internal predecessors, (1211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:00:21,684 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:00:21,684 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 402 of 802 [2022-12-13 21:00:21,685 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:00:21,842 INFO L130 PetriNetUnfolder]: 872/1700 cut-off events. [2022-12-13 21:00:21,842 INFO L131 PetriNetUnfolder]: For 1194/1264 co-relation queries the response was YES. [2022-12-13 21:00:21,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4159 conditions, 1700 events. 872/1700 cut-off events. For 1194/1264 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 9912 event pairs, 344 based on Foata normal form. 12/1317 useless extension candidates. Maximal degree in co-relation 4150. Up to 959 conditions per place. [2022-12-13 21:00:21,853 INFO L137 encePairwiseOnDemand]: 798/802 looper letters, 52 selfloop transitions, 3 changer transitions 0/91 dead transitions. [2022-12-13 21:00:21,853 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 91 transitions, 472 flow [2022-12-13 21:00:21,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:00:21,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 21:00:21,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1249 transitions. [2022-12-13 21:00:21,857 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5191188694929343 [2022-12-13 21:00:21,857 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1249 transitions. [2022-12-13 21:00:21,857 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1249 transitions. [2022-12-13 21:00:21,858 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:00:21,858 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1249 transitions. [2022-12-13 21:00:21,861 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 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) [2022-12-13 21:00:21,865 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 802.0) internal successors, (3208), 4 states have internal predecessors, (3208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:00:21,866 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 802.0) internal successors, (3208), 4 states have internal predecessors, (3208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:00:21,866 INFO L175 Difference]: Start difference. First operand has 64 places, 82 transitions, 336 flow. Second operand 3 states and 1249 transitions. [2022-12-13 21:00:21,866 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 91 transitions, 472 flow [2022-12-13 21:00:21,869 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 91 transitions, 459 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 21:00:21,870 INFO L231 Difference]: Finished difference. Result has 65 places, 81 transitions, 327 flow [2022-12-13 21:00:21,871 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=802, PETRI_DIFFERENCE_MINUEND_FLOW=321, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=327, PETRI_PLACES=65, PETRI_TRANSITIONS=81} [2022-12-13 21:00:21,871 INFO L288 CegarLoopForPetriNet]: 70 programPoint places, -5 predicate places. [2022-12-13 21:00:21,871 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 81 transitions, 327 flow [2022-12-13 21:00:21,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 403.6666666666667) internal successors, (1211), 3 states have internal predecessors, (1211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:00:21,872 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:00:21,872 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:00:21,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 21:00:21,872 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-12-13 21:00:21,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:00:21,873 INFO L85 PathProgramCache]: Analyzing trace with hash -780522522, now seen corresponding path program 1 times [2022-12-13 21:00:21,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:00:21,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019431134] [2022-12-13 21:00:21,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:00:21,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:00:21,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:00:22,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:00:22,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:00:22,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019431134] [2022-12-13 21:00:22,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019431134] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:00:22,175 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:00:22,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 21:00:22,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611906007] [2022-12-13 21:00:22,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:00:22,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 21:00:22,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:00:22,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 21:00:22,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 21:00:22,296 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 411 out of 802 [2022-12-13 21:00:22,299 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 81 transitions, 327 flow. Second operand has 6 states, 6 states have (on average 412.5) internal successors, (2475), 6 states have internal predecessors, (2475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:00:22,299 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:00:22,299 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 411 of 802 [2022-12-13 21:00:22,299 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:00:22,716 INFO L130 PetriNetUnfolder]: 2038/3376 cut-off events. [2022-12-13 21:00:22,716 INFO L131 PetriNetUnfolder]: For 2640/2954 co-relation queries the response was YES. [2022-12-13 21:00:22,720 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8542 conditions, 3376 events. 2038/3376 cut-off events. For 2640/2954 co-relation queries the response was YES. Maximal size of possible extension queue 172. Compared 19032 event pairs, 451 based on Foata normal form. 43/2728 useless extension candidates. Maximal degree in co-relation 8533. Up to 1141 conditions per place. [2022-12-13 21:00:22,730 INFO L137 encePairwiseOnDemand]: 797/802 looper letters, 178 selfloop transitions, 4 changer transitions 0/212 dead transitions. [2022-12-13 21:00:22,731 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 212 transitions, 1309 flow [2022-12-13 21:00:22,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 21:00:22,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 21:00:22,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2596 transitions. [2022-12-13 21:00:22,736 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5394846217788861 [2022-12-13 21:00:22,736 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2596 transitions. [2022-12-13 21:00:22,737 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2596 transitions. [2022-12-13 21:00:22,738 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:00:22,738 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2596 transitions. [2022-12-13 21:00:22,743 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 432.6666666666667) internal successors, (2596), 6 states have internal predecessors, (2596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:00:22,751 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 802.0) internal successors, (5614), 7 states have internal predecessors, (5614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:00:22,753 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 802.0) internal successors, (5614), 7 states have internal predecessors, (5614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:00:22,753 INFO L175 Difference]: Start difference. First operand has 65 places, 81 transitions, 327 flow. Second operand 6 states and 2596 transitions. [2022-12-13 21:00:22,753 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 212 transitions, 1309 flow [2022-12-13 21:00:22,757 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 212 transitions, 1287 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 21:00:22,759 INFO L231 Difference]: Finished difference. Result has 67 places, 80 transitions, 327 flow [2022-12-13 21:00:22,759 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=802, PETRI_DIFFERENCE_MINUEND_FLOW=319, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=327, PETRI_PLACES=67, PETRI_TRANSITIONS=80} [2022-12-13 21:00:22,760 INFO L288 CegarLoopForPetriNet]: 70 programPoint places, -3 predicate places. [2022-12-13 21:00:22,760 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 80 transitions, 327 flow [2022-12-13 21:00:22,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 412.5) internal successors, (2475), 6 states have internal predecessors, (2475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:00:22,762 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:00:22,762 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:00:22,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 21:00:22,762 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread_usbErr4ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-12-13 21:00:22,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:00:22,763 INFO L85 PathProgramCache]: Analyzing trace with hash -959305395, now seen corresponding path program 1 times [2022-12-13 21:00:22,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:00:22,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516643014] [2022-12-13 21:00:22,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:00:22,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:00:22,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:00:22,841 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:00:22,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:00:22,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516643014] [2022-12-13 21:00:22,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516643014] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:00:22,841 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:00:22,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 21:00:22,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341640063] [2022-12-13 21:00:22,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:00:22,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:00:22,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:00:22,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:00:22,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:00:22,849 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 416 out of 802 [2022-12-13 21:00:22,850 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 80 transitions, 327 flow. Second operand has 3 states, 3 states have (on average 418.3333333333333) internal successors, (1255), 3 states have internal predecessors, (1255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:00:22,851 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:00:22,851 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 416 of 802 [2022-12-13 21:00:22,851 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:00:23,022 INFO L130 PetriNetUnfolder]: 859/1648 cut-off events. [2022-12-13 21:00:23,023 INFO L131 PetriNetUnfolder]: For 945/1015 co-relation queries the response was YES. [2022-12-13 21:00:23,025 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4054 conditions, 1648 events. 859/1648 cut-off events. For 945/1015 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 9338 event pairs, 458 based on Foata normal form. 16/1289 useless extension candidates. Maximal degree in co-relation 4045. Up to 1222 conditions per place. [2022-12-13 21:00:23,029 INFO L137 encePairwiseOnDemand]: 799/802 looper letters, 46 selfloop transitions, 2 changer transitions 1/84 dead transitions. [2022-12-13 21:00:23,029 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 84 transitions, 433 flow [2022-12-13 21:00:23,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:00:23,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 21:00:23,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1285 transitions. [2022-12-13 21:00:23,031 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5340814630091438 [2022-12-13 21:00:23,031 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1285 transitions. [2022-12-13 21:00:23,031 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1285 transitions. [2022-12-13 21:00:23,031 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:00:23,031 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1285 transitions. [2022-12-13 21:00:23,033 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) [2022-12-13 21:00:23,035 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 802.0) internal successors, (3208), 4 states have internal predecessors, (3208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:00:23,035 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 802.0) internal successors, (3208), 4 states have internal predecessors, (3208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:00:23,035 INFO L175 Difference]: Start difference. First operand has 67 places, 80 transitions, 327 flow. Second operand 3 states and 1285 transitions. [2022-12-13 21:00:23,035 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 84 transitions, 433 flow [2022-12-13 21:00:23,037 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 84 transitions, 426 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-13 21:00:23,038 INFO L231 Difference]: Finished difference. Result has 66 places, 81 transitions, 332 flow [2022-12-13 21:00:23,038 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=802, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=332, PETRI_PLACES=66, PETRI_TRANSITIONS=81} [2022-12-13 21:00:23,038 INFO L288 CegarLoopForPetriNet]: 70 programPoint places, -4 predicate places. [2022-12-13 21:00:23,038 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 81 transitions, 332 flow [2022-12-13 21:00:23,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 418.3333333333333) internal successors, (1255), 3 states have internal predecessors, (1255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:00:23,039 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:00:23,039 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:00:23,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 21:00:23,039 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread_usbErr9ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-12-13 21:00:23,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:00:23,039 INFO L85 PathProgramCache]: Analyzing trace with hash 352332567, now seen corresponding path program 1 times [2022-12-13 21:00:23,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:00:23,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580806173] [2022-12-13 21:00:23,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:00:23,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:00:23,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:00:23,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:00:23,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:00:23,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580806173] [2022-12-13 21:00:23,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580806173] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:00:23,115 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:00:23,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 21:00:23,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164791074] [2022-12-13 21:00:23,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:00:23,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:00:23,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:00:23,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:00:23,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:00:23,124 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 416 out of 802 [2022-12-13 21:00:23,125 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 81 transitions, 332 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) [2022-12-13 21:00:23,125 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:00:23,125 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 416 of 802 [2022-12-13 21:00:23,125 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:00:23,227 INFO L130 PetriNetUnfolder]: 299/646 cut-off events. [2022-12-13 21:00:23,227 INFO L131 PetriNetUnfolder]: For 271/274 co-relation queries the response was YES. [2022-12-13 21:00:23,228 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1396 conditions, 646 events. 299/646 cut-off events. For 271/274 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 3325 event pairs, 109 based on Foata normal form. 24/531 useless extension candidates. Maximal degree in co-relation 1386. Up to 383 conditions per place. [2022-12-13 21:00:23,230 INFO L137 encePairwiseOnDemand]: 799/802 looper letters, 37 selfloop transitions, 2 changer transitions 4/62 dead transitions. [2022-12-13 21:00:23,230 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 62 transitions, 280 flow [2022-12-13 21:00:23,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:00:23,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 21:00:23,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1290 transitions. [2022-12-13 21:00:23,233 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5361596009975063 [2022-12-13 21:00:23,233 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1290 transitions. [2022-12-13 21:00:23,233 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1290 transitions. [2022-12-13 21:00:23,234 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:00:23,234 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1290 transitions. [2022-12-13 21:00:23,236 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 430.0) internal successors, (1290), 3 states have internal predecessors, (1290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:00:23,240 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 802.0) internal successors, (3208), 4 states have internal predecessors, (3208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:00:23,241 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 802.0) internal successors, (3208), 4 states have internal predecessors, (3208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:00:23,241 INFO L175 Difference]: Start difference. First operand has 66 places, 81 transitions, 332 flow. Second operand 3 states and 1290 transitions. [2022-12-13 21:00:23,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 62 transitions, 280 flow [2022-12-13 21:00:23,242 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 62 transitions, 230 flow, removed 10 selfloop flow, removed 7 redundant places. [2022-12-13 21:00:23,243 INFO L231 Difference]: Finished difference. Result has 56 places, 49 transitions, 126 flow [2022-12-13 21:00:23,244 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=802, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=126, PETRI_PLACES=56, PETRI_TRANSITIONS=49} [2022-12-13 21:00:23,244 INFO L288 CegarLoopForPetriNet]: 70 programPoint places, -14 predicate places. [2022-12-13 21:00:23,244 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 49 transitions, 126 flow [2022-12-13 21:00:23,245 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) [2022-12-13 21:00:23,245 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:00:23,245 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:00:23,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 21:00:23,245 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread_usbErr4ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-12-13 21:00:23,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:00:23,246 INFO L85 PathProgramCache]: Analyzing trace with hash 1598707361, now seen corresponding path program 1 times [2022-12-13 21:00:23,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:00:23,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767650247] [2022-12-13 21:00:23,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:00:23,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:00:23,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:00:23,514 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 21:00:23,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:00:23,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767650247] [2022-12-13 21:00:23,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767650247] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:00:23,515 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:00:23,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 21:00:23,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740002432] [2022-12-13 21:00:23,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:00:23,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 21:00:23,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:00:23,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 21:00:23,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 21:00:23,634 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 405 out of 802 [2022-12-13 21:00:23,636 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 49 transitions, 126 flow. Second operand has 6 states, 6 states have (on average 407.1666666666667) internal successors, (2443), 6 states have internal predecessors, (2443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:00:23,636 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:00:23,636 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 405 of 802 [2022-12-13 21:00:23,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:00:23,856 INFO L130 PetriNetUnfolder]: 931/1478 cut-off events. [2022-12-13 21:00:23,856 INFO L131 PetriNetUnfolder]: For 188/191 co-relation queries the response was YES. [2022-12-13 21:00:23,857 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3151 conditions, 1478 events. 931/1478 cut-off events. For 188/191 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 5962 event pairs, 262 based on Foata normal form. 0/1112 useless extension candidates. Maximal degree in co-relation 3144. Up to 781 conditions per place. [2022-12-13 21:00:23,859 INFO L137 encePairwiseOnDemand]: 797/802 looper letters, 79 selfloop transitions, 4 changer transitions 5/102 dead transitions. [2022-12-13 21:00:23,859 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 102 transitions, 430 flow [2022-12-13 21:00:23,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 21:00:23,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 21:00:23,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2519 transitions. [2022-12-13 21:00:23,862 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5234829592684954 [2022-12-13 21:00:23,862 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2519 transitions. [2022-12-13 21:00:23,862 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2519 transitions. [2022-12-13 21:00:23,863 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:00:23,864 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2519 transitions. [2022-12-13 21:00:23,868 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 419.8333333333333) internal successors, (2519), 6 states have internal predecessors, (2519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:00:23,874 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 802.0) internal successors, (5614), 7 states have internal predecessors, (5614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:00:23,875 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 802.0) internal successors, (5614), 7 states have internal predecessors, (5614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:00:23,875 INFO L175 Difference]: Start difference. First operand has 56 places, 49 transitions, 126 flow. Second operand 6 states and 2519 transitions. [2022-12-13 21:00:23,875 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 102 transitions, 430 flow [2022-12-13 21:00:23,877 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 102 transitions, 410 flow, removed 2 selfloop flow, removed 3 redundant places. [2022-12-13 21:00:23,878 INFO L231 Difference]: Finished difference. Result has 58 places, 51 transitions, 143 flow [2022-12-13 21:00:23,878 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=802, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=143, PETRI_PLACES=58, PETRI_TRANSITIONS=51} [2022-12-13 21:00:23,879 INFO L288 CegarLoopForPetriNet]: 70 programPoint places, -12 predicate places. [2022-12-13 21:00:23,879 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 51 transitions, 143 flow [2022-12-13 21:00:23,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 407.1666666666667) internal successors, (2443), 6 states have internal predecessors, (2443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:00:23,880 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:00:23,880 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:00:23,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 21:00:23,880 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-12-13 21:00:23,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:00:23,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1688431121, now seen corresponding path program 1 times [2022-12-13 21:00:23,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:00:23,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073290461] [2022-12-13 21:00:23,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:00:23,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:00:23,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:00:23,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:00:23,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:00:23,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073290461] [2022-12-13 21:00:23,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073290461] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:00:23,937 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:00:23,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 21:00:23,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518472802] [2022-12-13 21:00:23,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:00:23,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:00:23,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:00:23,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:00:23,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:00:23,984 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 397 out of 802 [2022-12-13 21:00:23,985 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 51 transitions, 143 flow. Second operand has 3 states, 3 states have (on average 401.3333333333333) internal successors, (1204), 3 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:00:23,986 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:00:23,986 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 397 of 802 [2022-12-13 21:00:23,986 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:00:24,096 INFO L130 PetriNetUnfolder]: 484/935 cut-off events. [2022-12-13 21:00:24,097 INFO L131 PetriNetUnfolder]: For 105/108 co-relation queries the response was YES. [2022-12-13 21:00:24,098 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2005 conditions, 935 events. 484/935 cut-off events. For 105/108 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 4027 event pairs, 304 based on Foata normal form. 2/808 useless extension candidates. Maximal degree in co-relation 1996. Up to 727 conditions per place. [2022-12-13 21:00:24,099 INFO L137 encePairwiseOnDemand]: 800/802 looper letters, 0 selfloop transitions, 0 changer transitions 50/50 dead transitions. [2022-12-13 21:00:24,099 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 50 transitions, 205 flow [2022-12-13 21:00:24,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:00:24,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 21:00:24,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1223 transitions. [2022-12-13 21:00:24,101 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5083125519534497 [2022-12-13 21:00:24,102 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1223 transitions. [2022-12-13 21:00:24,102 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1223 transitions. [2022-12-13 21:00:24,102 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:00:24,102 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1223 transitions. [2022-12-13 21:00:24,104 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 407.6666666666667) internal successors, (1223), 3 states have internal predecessors, (1223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:00:24,107 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 802.0) internal successors, (3208), 4 states have internal predecessors, (3208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:00:24,108 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 802.0) internal successors, (3208), 4 states have internal predecessors, (3208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:00:24,108 INFO L175 Difference]: Start difference. First operand has 58 places, 51 transitions, 143 flow. Second operand 3 states and 1223 transitions. [2022-12-13 21:00:24,108 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 50 transitions, 205 flow [2022-12-13 21:00:24,109 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 50 transitions, 205 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 21:00:24,110 INFO L231 Difference]: Finished difference. Result has 58 places, 0 transitions, 0 flow [2022-12-13 21:00:24,110 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=802, PETRI_DIFFERENCE_MINUEND_FLOW=141, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=58, PETRI_TRANSITIONS=0} [2022-12-13 21:00:24,110 INFO L288 CegarLoopForPetriNet]: 70 programPoint places, -12 predicate places. [2022-12-13 21:00:24,110 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 0 transitions, 0 flow [2022-12-13 21:00:24,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 401.3333333333333) internal successors, (1204), 3 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:00:24,112 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE (35 of 36 remaining) [2022-12-13 21:00:24,113 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE (34 of 36 remaining) [2022-12-13 21:00:24,113 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (33 of 36 remaining) [2022-12-13 21:00:24,113 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (32 of 36 remaining) [2022-12-13 21:00:24,113 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (31 of 36 remaining) [2022-12-13 21:00:24,113 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (30 of 36 remaining) [2022-12-13 21:00:24,113 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (29 of 36 remaining) [2022-12-13 21:00:24,113 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (28 of 36 remaining) [2022-12-13 21:00:24,113 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (27 of 36 remaining) [2022-12-13 21:00:24,113 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (26 of 36 remaining) [2022-12-13 21:00:24,114 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0ASSERT_VIOLATIONDATA_RACE (25 of 36 remaining) [2022-12-13 21:00:24,114 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr9ASSERT_VIOLATIONDATA_RACE (24 of 36 remaining) [2022-12-13 21:00:24,114 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1ASSERT_VIOLATIONDATA_RACE (23 of 36 remaining) [2022-12-13 21:00:24,114 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr3ASSERT_VIOLATIONDATA_RACE (22 of 36 remaining) [2022-12-13 21:00:24,114 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr10ASSERT_VIOLATIONDATA_RACE (21 of 36 remaining) [2022-12-13 21:00:24,114 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr8ASSERT_VIOLATIONDATA_RACE (20 of 36 remaining) [2022-12-13 21:00:24,114 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr4ASSERT_VIOLATIONDATA_RACE (19 of 36 remaining) [2022-12-13 21:00:24,114 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr5ASSERT_VIOLATIONDATA_RACE (18 of 36 remaining) [2022-12-13 21:00:24,114 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr2ASSERT_VIOLATIONDATA_RACE (17 of 36 remaining) [2022-12-13 21:00:24,115 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr6ASSERT_VIOLATIONDATA_RACE (16 of 36 remaining) [2022-12-13 21:00:24,115 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr7ASSERT_VIOLATIONDATA_RACE (15 of 36 remaining) [2022-12-13 21:00:24,115 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 36 remaining) [2022-12-13 21:00:24,115 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE (13 of 36 remaining) [2022-12-13 21:00:24,115 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE (12 of 36 remaining) [2022-12-13 21:00:24,115 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0ASSERT_VIOLATIONDATA_RACE (11 of 36 remaining) [2022-12-13 21:00:24,115 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr9ASSERT_VIOLATIONDATA_RACE (10 of 36 remaining) [2022-12-13 21:00:24,115 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1ASSERT_VIOLATIONDATA_RACE (9 of 36 remaining) [2022-12-13 21:00:24,115 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr3ASSERT_VIOLATIONDATA_RACE (8 of 36 remaining) [2022-12-13 21:00:24,116 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr10ASSERT_VIOLATIONDATA_RACE (7 of 36 remaining) [2022-12-13 21:00:24,116 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr8ASSERT_VIOLATIONDATA_RACE (6 of 36 remaining) [2022-12-13 21:00:24,116 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr4ASSERT_VIOLATIONDATA_RACE (5 of 36 remaining) [2022-12-13 21:00:24,116 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr5ASSERT_VIOLATIONDATA_RACE (4 of 36 remaining) [2022-12-13 21:00:24,116 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr2ASSERT_VIOLATIONDATA_RACE (3 of 36 remaining) [2022-12-13 21:00:24,116 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr6ASSERT_VIOLATIONDATA_RACE (2 of 36 remaining) [2022-12-13 21:00:24,116 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr7ASSERT_VIOLATIONDATA_RACE (1 of 36 remaining) [2022-12-13 21:00:24,116 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbThread1of1ForFork1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 36 remaining) [2022-12-13 21:00:24,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 21:00:24,117 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:00:24,122 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 21:00:24,122 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 21:00:24,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 09:00:24 BasicIcfg [2022-12-13 21:00:24,124 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 21:00:24,124 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 21:00:24,125 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 21:00:24,125 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 21:00:24,125 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:00:13" (3/4) ... [2022-12-13 21:00:24,127 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 21:00:24,131 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread_ath9k [2022-12-13 21:00:24,132 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread_usb [2022-12-13 21:00:24,134 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2022-12-13 21:00:24,135 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-12-13 21:00:24,135 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 21:00:24,135 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 21:00:24,159 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_859d36a5-0729-461d-a4fe-c8bd4a4e0a22/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 21:00:24,159 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 21:00:24,159 INFO L158 Benchmark]: Toolchain (without parser) took 11704.83ms. Allocated memory was 140.5MB in the beginning and 176.2MB in the end (delta: 35.7MB). Free memory was 102.3MB in the beginning and 103.7MB in the end (delta: -1.5MB). Peak memory consumption was 36.2MB. Max. memory is 16.1GB. [2022-12-13 21:00:24,159 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 140.5MB. Free memory was 109.7MB in the beginning and 109.7MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 21:00:24,160 INFO L158 Benchmark]: CACSL2BoogieTranslator took 787.48ms. Allocated memory was 140.5MB in the beginning and 176.2MB in the end (delta: 35.7MB). Free memory was 102.3MB in the beginning and 140.2MB in the end (delta: -38.0MB). Peak memory consumption was 72.0MB. Max. memory is 16.1GB. [2022-12-13 21:00:24,160 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.66ms. Allocated memory is still 176.2MB. Free memory was 140.2MB in the beginning and 137.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 21:00:24,160 INFO L158 Benchmark]: Boogie Preprocessor took 33.64ms. Allocated memory is still 176.2MB. Free memory was 136.1MB in the beginning and 133.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 21:00:24,160 INFO L158 Benchmark]: RCFGBuilder took 591.89ms. Allocated memory is still 176.2MB. Free memory was 133.0MB in the beginning and 104.4MB in the end (delta: 28.6MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-12-13 21:00:24,160 INFO L158 Benchmark]: TraceAbstraction took 10188.54ms. Allocated memory is still 176.2MB. Free memory was 104.4MB in the beginning and 106.9MB in the end (delta: -2.5MB). Peak memory consumption was 70.0MB. Max. memory is 16.1GB. [2022-12-13 21:00:24,161 INFO L158 Benchmark]: Witness Printer took 34.24ms. Allocated memory is still 176.2MB. Free memory was 106.9MB in the beginning and 103.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 21:00:24,162 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 140.5MB. Free memory was 109.7MB in the beginning and 109.7MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 787.48ms. Allocated memory was 140.5MB in the beginning and 176.2MB in the end (delta: 35.7MB). Free memory was 102.3MB in the beginning and 140.2MB in the end (delta: -38.0MB). Peak memory consumption was 72.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.66ms. Allocated memory is still 176.2MB. Free memory was 140.2MB in the beginning and 137.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.64ms. Allocated memory is still 176.2MB. Free memory was 136.1MB in the beginning and 133.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 591.89ms. Allocated memory is still 176.2MB. Free memory was 133.0MB in the beginning and 104.4MB in the end (delta: 28.6MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 10188.54ms. Allocated memory is still 176.2MB. Free memory was 104.4MB in the beginning and 106.9MB in the end (delta: -2.5MB). Peak memory consumption was 70.0MB. Max. memory is 16.1GB. * Witness Printer took 34.24ms. Allocated memory is still 176.2MB. Free memory was 106.9MB in the beginning and 103.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.5s, 293 PlacesBefore, 70 PlacesAfterwards, 310 TransitionsBefore, 75 TransitionsAfterwards, 18816 CoEnabledTransitionPairs, 9 FixpointIterations, 96 TrivialSequentialCompositions, 196 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 47 ConcurrentYvCompositions, 12 ChoiceCompositions, 354 TotalNumberOfCompositions, 46406 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 25642, independent: 24927, independent conditional: 0, independent unconditional: 24927, dependent: 715, dependent conditional: 0, dependent unconditional: 715, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 10674, independent: 10587, independent conditional: 0, independent unconditional: 10587, dependent: 87, dependent conditional: 0, dependent unconditional: 87, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 25642, independent: 14340, independent conditional: 0, independent unconditional: 14340, dependent: 628, dependent conditional: 0, dependent unconditional: 628, unknown: 10674, unknown conditional: 0, unknown unconditional: 10674] , Statistics on independence cache: Total cache size (in pairs): 595, Positive cache size: 557, Positive conditional cache size: 0, Positive unconditional cache size: 557, Negative cache size: 38, Negative conditional cache size: 0, Negative unconditional cache size: 38, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 1699]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1700]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1777]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1778]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1783]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1784]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1790]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1792]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1793]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1743]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1771]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1748]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1756]: 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: 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: 1752]: 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: 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, 457 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: 10.1s, OverallIterations: 12, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 880 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 473 mSDsluCounter, 55 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 175 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1634 IncrementalHoareTripleChecker+Invalid, 1809 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 175 mSolverCounterUnsat, 55 mSDtfsCounter, 1634 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=336occurred in iteration=6, InterpolantAutomatonStates: 41, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 117 NumberOfCodeBlocks, 117 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 105 ConstructedInterpolants, 0 QuantifiedInterpolants, 288 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 4/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 20 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 21:00:24,176 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_859d36a5-0729-461d-a4fe-c8bd4a4e0a22/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE