./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/ldv-races/race-4_2-thread_local_vars.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e7bb482b 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_dfb47d1d-07f0-4716-8e70-98fd262375bd/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfb47d1d-07f0-4716-8e70-98fd262375bd/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfb47d1d-07f0-4716-8e70-98fd262375bd/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfb47d1d-07f0-4716-8e70-98fd262375bd/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-4_2-thread_local_vars.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfb47d1d-07f0-4716-8e70-98fd262375bd/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfb47d1d-07f0-4716-8e70-98fd262375bd/bin/uautomizer-verify-WvqO1wxjHP --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 0f799b8cb369af433cd7b4f4a2ae1c7efd2306d185f06da0302d2727c00c6bf0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:44:21,723 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:44:21,799 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfb47d1d-07f0-4716-8e70-98fd262375bd/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-06 22:44:21,806 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:44:21,806 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:44:21,835 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:44:21,836 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:44:21,837 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:44:21,838 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:44:21,838 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:44:21,839 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:44:21,840 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:44:21,841 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:44:21,841 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:44:21,842 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:44:21,843 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:44:21,843 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:44:21,844 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:44:21,844 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:44:21,845 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:44:21,846 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:44:21,846 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:44:21,847 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-06 22:44:21,848 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:44:21,848 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:44:21,848 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:44:21,849 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:44:21,850 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:44:21,850 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:44:21,851 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:44:21,851 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:44:21,852 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:44:21,852 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:44:21,852 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:44:21,853 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:44:21,853 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:44:21,853 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:44:21,854 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:44:21,854 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:44:21,854 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:44:21,855 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:44:21,855 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfb47d1d-07f0-4716-8e70-98fd262375bd/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfb47d1d-07f0-4716-8e70-98fd262375bd/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f799b8cb369af433cd7b4f4a2ae1c7efd2306d185f06da0302d2727c00c6bf0 [2023-11-06 22:44:22,099 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:44:22,128 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:44:22,131 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:44:22,132 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:44:22,133 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:44:22,134 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfb47d1d-07f0-4716-8e70-98fd262375bd/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/ldv-races/race-4_2-thread_local_vars.i [2023-11-06 22:44:25,214 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:44:25,695 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:44:25,695 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfb47d1d-07f0-4716-8e70-98fd262375bd/sv-benchmarks/c/ldv-races/race-4_2-thread_local_vars.i [2023-11-06 22:44:25,729 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfb47d1d-07f0-4716-8e70-98fd262375bd/bin/uautomizer-verify-WvqO1wxjHP/data/f9c72482a/aad49c32f7a84fc8a905d9b47fb50ca7/FLAGafbfe275d [2023-11-06 22:44:25,843 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfb47d1d-07f0-4716-8e70-98fd262375bd/bin/uautomizer-verify-WvqO1wxjHP/data/f9c72482a/aad49c32f7a84fc8a905d9b47fb50ca7 [2023-11-06 22:44:25,846 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:44:25,848 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:44:25,851 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:44:25,851 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:44:25,857 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:44:25,858 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:44:25" (1/1) ... [2023-11-06 22:44:25,859 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f44b8de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:25, skipping insertion in model container [2023-11-06 22:44:25,859 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:44:25" (1/1) ... [2023-11-06 22:44:25,944 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:44:27,145 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:44:27,169 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:44:27,357 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:44:27,576 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:44:27,577 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:27 WrapperNode [2023-11-06 22:44:27,577 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:44:27,579 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:44:27,579 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:44:27,580 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:44:27,590 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:27" (1/1) ... [2023-11-06 22:44:27,644 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:27" (1/1) ... [2023-11-06 22:44:27,698 INFO L138 Inliner]: procedures = 486, calls = 45, calls flagged for inlining = 17, calls inlined = 23, statements flattened = 303 [2023-11-06 22:44:27,699 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:44:27,700 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:44:27,700 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:44:27,700 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:44:27,713 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:27" (1/1) ... [2023-11-06 22:44:27,713 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:27" (1/1) ... [2023-11-06 22:44:27,723 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:27" (1/1) ... [2023-11-06 22:44:27,723 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:27" (1/1) ... [2023-11-06 22:44:27,745 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:27" (1/1) ... [2023-11-06 22:44:27,751 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:27" (1/1) ... [2023-11-06 22:44:27,760 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:27" (1/1) ... [2023-11-06 22:44:27,764 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:27" (1/1) ... [2023-11-06 22:44:27,775 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:44:27,776 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:44:27,776 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:44:27,776 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:44:27,777 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:27" (1/1) ... [2023-11-06 22:44:27,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:44:27,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfb47d1d-07f0-4716-8e70-98fd262375bd/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:44:27,827 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfb47d1d-07f0-4716-8e70-98fd262375bd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:44:27,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfb47d1d-07f0-4716-8e70-98fd262375bd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:44:27,888 INFO L130 BoogieDeclarations]: Found specification of procedure thread_usb [2023-11-06 22:44:27,888 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_usb [2023-11-06 22:44:27,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:44:27,889 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:44:27,889 INFO L130 BoogieDeclarations]: Found specification of procedure thread_ath9k [2023-11-06 22:44:27,889 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_ath9k [2023-11-06 22:44:27,889 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-06 22:44:27,889 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:44:27,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 22:44:27,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:44:27,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:44:27,890 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:44:27,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:44:27,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:44:27,893 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 22:44:28,276 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:44:28,279 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:44:28,776 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:44:28,792 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:44:28,792 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-06 22:44:28,795 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:44:28 BoogieIcfgContainer [2023-11-06 22:44:28,796 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:44:28,798 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:44:28,798 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:44:28,802 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:44:28,802 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:44:25" (1/3) ... [2023-11-06 22:44:28,803 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68b794ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:44:28, skipping insertion in model container [2023-11-06 22:44:28,804 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:27" (2/3) ... [2023-11-06 22:44:28,804 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68b794ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:44:28, skipping insertion in model container [2023-11-06 22:44:28,804 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:44:28" (3/3) ... [2023-11-06 22:44:28,806 INFO L112 eAbstractionObserver]: Analyzing ICFG race-4_2-thread_local_vars.i [2023-11-06 22:44:28,816 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 22:44:28,829 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:44:28,829 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2023-11-06 22:44:28,829 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 22:44:28,943 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2023-11-06 22:44:28,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 481 places, 523 transitions, 1073 flow [2023-11-06 22:44:29,197 INFO L124 PetriNetUnfolderBase]: 45/534 cut-off events. [2023-11-06 22:44:29,198 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-06 22:44:29,211 INFO L83 FinitePrefix]: Finished finitePrefix Result has 545 conditions, 534 events. 45/534 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1592 event pairs, 0 based on Foata normal form. 0/450 useless extension candidates. Maximal degree in co-relation 371. Up to 11 conditions per place. [2023-11-06 22:44:29,212 INFO L82 GeneralOperation]: Start removeDead. Operand has 481 places, 523 transitions, 1073 flow [2023-11-06 22:44:29,226 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 330 places, 355 transitions, 726 flow [2023-11-06 22:44:29,230 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:44:29,252 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 330 places, 355 transitions, 726 flow [2023-11-06 22:44:29,255 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 330 places, 355 transitions, 726 flow [2023-11-06 22:44:29,256 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 330 places, 355 transitions, 726 flow [2023-11-06 22:44:29,390 INFO L124 PetriNetUnfolderBase]: 45/534 cut-off events. [2023-11-06 22:44:29,390 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-06 22:44:29,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 545 conditions, 534 events. 45/534 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1598 event pairs, 0 based on Foata normal form. 0/450 useless extension candidates. Maximal degree in co-relation 371. Up to 11 conditions per place. [2023-11-06 22:44:29,417 INFO L119 LiptonReduction]: Number of co-enabled transitions 24066 [2023-11-06 22:44:40,320 INFO L134 LiptonReduction]: Checked pairs total: 57222 [2023-11-06 22:44:40,325 INFO L136 LiptonReduction]: Total number of compositions: 440 [2023-11-06 22:44:40,354 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:44:40,364 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;@1fd2daca, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:44:40,364 INFO L358 AbstractCegarLoop]: Starting to check reachability of 40 error locations. [2023-11-06 22:44:40,366 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:44:40,367 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-06 22:44:40,367 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:44:40,367 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:44:40,368 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-06 22:44:40,369 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-11-06 22:44:40,375 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:44:40,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1523, now seen corresponding path program 1 times [2023-11-06 22:44:40,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:44:40,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49688990] [2023-11-06 22:44:40,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:44:40,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:44:40,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:40,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:44:40,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:44:40,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49688990] [2023-11-06 22:44:40,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49688990] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:44:40,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:44:40,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-06 22:44:40,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119066476] [2023-11-06 22:44:40,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:44:40,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:44:40,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:44:40,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:44:40,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:44:40,774 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 479 out of 963 [2023-11-06 22:44:40,780 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 84 transitions, 184 flow. Second operand has 2 states, 2 states have (on average 479.5) internal successors, (959), 2 states have internal predecessors, (959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:40,780 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:44:40,781 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 479 of 963 [2023-11-06 22:44:40,782 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:44:41,105 INFO L124 PetriNetUnfolderBase]: 787/1646 cut-off events. [2023-11-06 22:44:41,105 INFO L125 PetriNetUnfolderBase]: For 25/25 co-relation queries the response was YES. [2023-11-06 22:44:41,109 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2836 conditions, 1646 events. 787/1646 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 10083 event pairs, 490 based on Foata normal form. 53/1100 useless extension candidates. Maximal degree in co-relation 2618. Up to 1162 conditions per place. [2023-11-06 22:44:41,122 INFO L140 encePairwiseOnDemand]: 947/963 looper letters, 36 selfloop transitions, 0 changer transitions 0/68 dead transitions. [2023-11-06 22:44:41,123 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 68 transitions, 224 flow [2023-11-06 22:44:41,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:44:41,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-06 22:44:41,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1010 transitions. [2023-11-06 22:44:41,150 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5244029075804777 [2023-11-06 22:44:41,151 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1010 transitions. [2023-11-06 22:44:41,152 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1010 transitions. [2023-11-06 22:44:41,156 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:44:41,159 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1010 transitions. [2023-11-06 22:44:41,168 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 505.0) internal successors, (1010), 2 states have internal predecessors, (1010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:41,180 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 963.0) internal successors, (2889), 3 states have internal predecessors, (2889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:41,183 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 963.0) internal successors, (2889), 3 states have internal predecessors, (2889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:41,185 INFO L175 Difference]: Start difference. First operand has 77 places, 84 transitions, 184 flow. Second operand 2 states and 1010 transitions. [2023-11-06 22:44:41,186 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 68 transitions, 224 flow [2023-11-06 22:44:41,191 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 68 transitions, 220 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 22:44:41,194 INFO L231 Difference]: Finished difference. Result has 64 places, 68 transitions, 148 flow [2023-11-06 22:44:41,196 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=963, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=148, PETRI_PLACES=64, PETRI_TRANSITIONS=68} [2023-11-06 22:44:41,203 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, -13 predicate places. [2023-11-06 22:44:41,203 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 68 transitions, 148 flow [2023-11-06 22:44:41,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 479.5) internal successors, (959), 2 states have internal predecessors, (959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:41,205 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:44:41,205 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-06 22:44:41,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:44:41,206 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread_usbErr11ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-11-06 22:44:41,206 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:44:41,206 INFO L85 PathProgramCache]: Analyzing trace with hash -2097840712, now seen corresponding path program 1 times [2023-11-06 22:44:41,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:44:41,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156474615] [2023-11-06 22:44:41,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:44:41,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:44:41,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:41,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:44:41,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:44:41,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156474615] [2023-11-06 22:44:41,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156474615] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:44:41,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:44:41,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:44:41,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155901583] [2023-11-06 22:44:41,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:44:41,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:44:41,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:44:41,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:44:41,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:44:41,618 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 455 out of 963 [2023-11-06 22:44:41,622 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 68 transitions, 148 flow. Second operand has 3 states, 3 states have (on average 457.0) internal successors, (1371), 3 states have internal predecessors, (1371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:41,622 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:44:41,623 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 455 of 963 [2023-11-06 22:44:41,623 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:44:41,925 INFO L124 PetriNetUnfolderBase]: 1150/2130 cut-off events. [2023-11-06 22:44:41,926 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-11-06 22:44:41,930 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3864 conditions, 2130 events. 1150/2130 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 12251 event pairs, 645 based on Foata normal form. 0/1399 useless extension candidates. Maximal degree in co-relation 3860. Up to 1514 conditions per place. [2023-11-06 22:44:41,947 INFO L140 encePairwiseOnDemand]: 957/963 looper letters, 47 selfloop transitions, 5 changer transitions 0/80 dead transitions. [2023-11-06 22:44:41,947 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 80 transitions, 276 flow [2023-11-06 22:44:41,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:44:41,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:44:41,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1418 transitions. [2023-11-06 22:44:41,954 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4908272758740048 [2023-11-06 22:44:41,955 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1418 transitions. [2023-11-06 22:44:41,955 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1418 transitions. [2023-11-06 22:44:41,956 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:44:41,956 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1418 transitions. [2023-11-06 22:44:41,962 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 472.6666666666667) internal successors, (1418), 3 states have internal predecessors, (1418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:41,971 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 963.0) internal successors, (3852), 4 states have internal predecessors, (3852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:41,975 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 963.0) internal successors, (3852), 4 states have internal predecessors, (3852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:41,977 INFO L175 Difference]: Start difference. First operand has 64 places, 68 transitions, 148 flow. Second operand 3 states and 1418 transitions. [2023-11-06 22:44:41,978 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 80 transitions, 276 flow [2023-11-06 22:44:41,980 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 80 transitions, 276 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:44:41,983 INFO L231 Difference]: Finished difference. Result has 68 places, 72 transitions, 186 flow [2023-11-06 22:44:41,984 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=963, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=186, PETRI_PLACES=68, PETRI_TRANSITIONS=72} [2023-11-06 22:44:41,987 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, -9 predicate places. [2023-11-06 22:44:41,988 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 72 transitions, 186 flow [2023-11-06 22:44:41,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 457.0) internal successors, (1371), 3 states have internal predecessors, (1371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:41,989 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:44:41,995 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:44:41,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:44:41,995 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread_usbErr3ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-11-06 22:44:41,996 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:44:41,996 INFO L85 PathProgramCache]: Analyzing trace with hash -607958786, now seen corresponding path program 1 times [2023-11-06 22:44:41,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:44:41,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310420880] [2023-11-06 22:44:41,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:44:41,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:44:42,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:42,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:44:42,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:44:42,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310420880] [2023-11-06 22:44:42,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310420880] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:44:42,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:44:42,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:44:42,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380782828] [2023-11-06 22:44:42,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:44:42,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:44:42,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:44:42,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:44:42,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:44:42,246 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 455 out of 963 [2023-11-06 22:44:42,248 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 72 transitions, 186 flow. Second operand has 3 states, 3 states have (on average 457.3333333333333) internal successors, (1372), 3 states have internal predecessors, (1372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:42,248 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:44:42,248 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 455 of 963 [2023-11-06 22:44:42,248 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:44:42,565 INFO L124 PetriNetUnfolderBase]: 1242/2282 cut-off events. [2023-11-06 22:44:42,565 INFO L125 PetriNetUnfolderBase]: For 222/234 co-relation queries the response was YES. [2023-11-06 22:44:42,571 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4544 conditions, 2282 events. 1242/2282 cut-off events. For 222/234 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 13175 event pairs, 673 based on Foata normal form. 0/1523 useless extension candidates. Maximal degree in co-relation 4538. Up to 1646 conditions per place. [2023-11-06 22:44:42,588 INFO L140 encePairwiseOnDemand]: 957/963 looper letters, 50 selfloop transitions, 5 changer transitions 0/84 dead transitions. [2023-11-06 22:44:42,588 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 84 transitions, 324 flow [2023-11-06 22:44:42,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:44:42,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:44:42,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1418 transitions. [2023-11-06 22:44:42,594 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4908272758740048 [2023-11-06 22:44:42,594 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1418 transitions. [2023-11-06 22:44:42,595 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1418 transitions. [2023-11-06 22:44:42,596 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:44:42,596 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1418 transitions. [2023-11-06 22:44:42,600 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 472.6666666666667) internal successors, (1418), 3 states have internal predecessors, (1418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:42,608 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 963.0) internal successors, (3852), 4 states have internal predecessors, (3852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:42,611 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 963.0) internal successors, (3852), 4 states have internal predecessors, (3852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:42,612 INFO L175 Difference]: Start difference. First operand has 68 places, 72 transitions, 186 flow. Second operand 3 states and 1418 transitions. [2023-11-06 22:44:42,612 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 84 transitions, 324 flow [2023-11-06 22:44:42,617 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 84 transitions, 314 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 22:44:42,619 INFO L231 Difference]: Finished difference. Result has 70 places, 76 transitions, 218 flow [2023-11-06 22:44:42,619 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=963, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=218, PETRI_PLACES=70, PETRI_TRANSITIONS=76} [2023-11-06 22:44:42,620 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, -7 predicate places. [2023-11-06 22:44:42,620 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 76 transitions, 218 flow [2023-11-06 22:44:42,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 457.3333333333333) internal successors, (1372), 3 states have internal predecessors, (1372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:42,622 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:44:42,622 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:44:42,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:44:42,622 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-11-06 22:44:42,623 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:44:42,623 INFO L85 PathProgramCache]: Analyzing trace with hash 2077838342, now seen corresponding path program 1 times [2023-11-06 22:44:42,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:44:42,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52722530] [2023-11-06 22:44:42,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:44:42,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:44:42,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:42,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:44:42,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:44:42,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52722530] [2023-11-06 22:44:42,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52722530] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:44:42,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:44:42,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:44:42,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652476958] [2023-11-06 22:44:42,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:44:42,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:44:42,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:44:42,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:44:42,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:44:42,726 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 473 out of 963 [2023-11-06 22:44:42,728 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 76 transitions, 218 flow. Second operand has 3 states, 3 states have (on average 473.6666666666667) internal successors, (1421), 3 states have internal predecessors, (1421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:42,729 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:44:42,729 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 473 of 963 [2023-11-06 22:44:42,729 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:44:42,988 INFO L124 PetriNetUnfolderBase]: 982/2001 cut-off events. [2023-11-06 22:44:42,988 INFO L125 PetriNetUnfolderBase]: For 415/426 co-relation queries the response was YES. [2023-11-06 22:44:42,994 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4082 conditions, 2001 events. 982/2001 cut-off events. For 415/426 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 12656 event pairs, 557 based on Foata normal form. 0/1343 useless extension candidates. Maximal degree in co-relation 4075. Up to 1399 conditions per place. [2023-11-06 22:44:43,009 INFO L140 encePairwiseOnDemand]: 960/963 looper letters, 39 selfloop transitions, 0 changer transitions 2/77 dead transitions. [2023-11-06 22:44:43,009 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 77 transitions, 302 flow [2023-11-06 22:44:43,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:44:43,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:44:43,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1457 transitions. [2023-11-06 22:44:43,015 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5043267566632053 [2023-11-06 22:44:43,015 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1457 transitions. [2023-11-06 22:44:43,016 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1457 transitions. [2023-11-06 22:44:43,017 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:44:43,017 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1457 transitions. [2023-11-06 22:44:43,022 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 485.6666666666667) internal successors, (1457), 3 states have internal predecessors, (1457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:43,030 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 963.0) internal successors, (3852), 4 states have internal predecessors, (3852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:43,033 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 963.0) internal successors, (3852), 4 states have internal predecessors, (3852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:43,033 INFO L175 Difference]: Start difference. First operand has 70 places, 76 transitions, 218 flow. Second operand 3 states and 1457 transitions. [2023-11-06 22:44:43,033 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 77 transitions, 302 flow [2023-11-06 22:44:43,038 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 77 transitions, 288 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-11-06 22:44:43,041 INFO L231 Difference]: Finished difference. Result has 71 places, 75 transitions, 206 flow [2023-11-06 22:44:43,041 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=963, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=206, PETRI_PLACES=71, PETRI_TRANSITIONS=75} [2023-11-06 22:44:43,043 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, -6 predicate places. [2023-11-06 22:44:43,043 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 75 transitions, 206 flow [2023-11-06 22:44:43,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 473.6666666666667) internal successors, (1421), 3 states have internal predecessors, (1421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:43,045 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:44:43,045 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:44:43,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:44:43,046 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread_usbErr12ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-11-06 22:44:43,046 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:44:43,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1685225864, now seen corresponding path program 1 times [2023-11-06 22:44:43,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:44:43,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855449164] [2023-11-06 22:44:43,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:44:43,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:44:43,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:43,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:44:43,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:44:43,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855449164] [2023-11-06 22:44:43,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855449164] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:44:43,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:44:43,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:44:43,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393033622] [2023-11-06 22:44:43,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:44:43,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:44:43,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:44:43,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:44:43,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:44:43,246 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 439 out of 963 [2023-11-06 22:44:43,248 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 75 transitions, 206 flow. Second operand has 3 states, 3 states have (on average 441.3333333333333) internal successors, (1324), 3 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:43,248 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:44:43,248 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 439 of 963 [2023-11-06 22:44:43,249 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:44:43,759 INFO L124 PetriNetUnfolderBase]: 1864/3288 cut-off events. [2023-11-06 22:44:43,760 INFO L125 PetriNetUnfolderBase]: For 851/959 co-relation queries the response was YES. [2023-11-06 22:44:43,770 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7542 conditions, 3288 events. 1864/3288 cut-off events. For 851/959 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 19354 event pairs, 780 based on Foata normal form. 25/2391 useless extension candidates. Maximal degree in co-relation 7534. Up to 2142 conditions per place. [2023-11-06 22:44:43,796 INFO L140 encePairwiseOnDemand]: 946/963 looper letters, 70 selfloop transitions, 19 changer transitions 0/113 dead transitions. [2023-11-06 22:44:43,796 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 113 transitions, 489 flow [2023-11-06 22:44:43,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:44:43,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:44:43,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1400 transitions. [2023-11-06 22:44:43,803 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48459674627898924 [2023-11-06 22:44:43,803 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1400 transitions. [2023-11-06 22:44:43,803 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1400 transitions. [2023-11-06 22:44:43,805 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:44:43,805 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1400 transitions. [2023-11-06 22:44:43,810 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 466.6666666666667) internal successors, (1400), 3 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:43,819 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 963.0) internal successors, (3852), 4 states have internal predecessors, (3852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:43,823 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 963.0) internal successors, (3852), 4 states have internal predecessors, (3852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:43,824 INFO L175 Difference]: Start difference. First operand has 71 places, 75 transitions, 206 flow. Second operand 3 states and 1400 transitions. [2023-11-06 22:44:43,824 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 113 transitions, 489 flow [2023-11-06 22:44:43,826 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 113 transitions, 481 flow, removed 4 selfloop flow, removed 1 redundant places. [2023-11-06 22:44:43,829 INFO L231 Difference]: Finished difference. Result has 73 places, 91 transitions, 374 flow [2023-11-06 22:44:43,829 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=963, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=374, PETRI_PLACES=73, PETRI_TRANSITIONS=91} [2023-11-06 22:44:43,830 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, -4 predicate places. [2023-11-06 22:44:43,831 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 91 transitions, 374 flow [2023-11-06 22:44:43,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 441.3333333333333) internal successors, (1324), 3 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:43,832 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:44:43,833 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:44:43,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 22:44:43,833 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-11-06 22:44:43,833 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:44:43,834 INFO L85 PathProgramCache]: Analyzing trace with hash -969970761, now seen corresponding path program 1 times [2023-11-06 22:44:43,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:44:43,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919048910] [2023-11-06 22:44:43,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:44:43,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:44:43,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:43,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:44:43,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:44:43,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919048910] [2023-11-06 22:44:43,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919048910] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:44:43,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:44:43,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:44:43,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779121283] [2023-11-06 22:44:43,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:44:43,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:44:43,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:44:43,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:44:43,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:44:44,059 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 453 out of 963 [2023-11-06 22:44:44,061 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 91 transitions, 374 flow. Second operand has 3 states, 3 states have (on average 455.6666666666667) internal successors, (1367), 3 states have internal predecessors, (1367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:44,061 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:44:44,062 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 453 of 963 [2023-11-06 22:44:44,062 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:44:44,654 INFO L124 PetriNetUnfolderBase]: 1813/3255 cut-off events. [2023-11-06 22:44:44,655 INFO L125 PetriNetUnfolderBase]: For 3222/3365 co-relation queries the response was YES. [2023-11-06 22:44:44,668 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8304 conditions, 3255 events. 1813/3255 cut-off events. For 3222/3365 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 19640 event pairs, 828 based on Foata normal form. 58/2381 useless extension candidates. Maximal degree in co-relation 8295. Up to 2381 conditions per place. [2023-11-06 22:44:44,695 INFO L140 encePairwiseOnDemand]: 954/963 looper letters, 67 selfloop transitions, 18 changer transitions 0/120 dead transitions. [2023-11-06 22:44:44,696 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 120 transitions, 657 flow [2023-11-06 22:44:44,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:44:44,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:44:44,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1422 transitions. [2023-11-06 22:44:44,702 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49221183800623053 [2023-11-06 22:44:44,703 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1422 transitions. [2023-11-06 22:44:44,703 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1422 transitions. [2023-11-06 22:44:44,704 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:44:44,705 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1422 transitions. [2023-11-06 22:44:44,710 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 474.0) internal successors, (1422), 3 states have internal predecessors, (1422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:44,719 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 963.0) internal successors, (3852), 4 states have internal predecessors, (3852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:44,721 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 963.0) internal successors, (3852), 4 states have internal predecessors, (3852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:44,721 INFO L175 Difference]: Start difference. First operand has 73 places, 91 transitions, 374 flow. Second operand 3 states and 1422 transitions. [2023-11-06 22:44:44,721 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 120 transitions, 657 flow [2023-11-06 22:44:44,727 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 120 transitions, 603 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 22:44:44,730 INFO L231 Difference]: Finished difference. Result has 74 places, 103 transitions, 478 flow [2023-11-06 22:44:44,731 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=963, PETRI_DIFFERENCE_MINUEND_FLOW=336, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=478, PETRI_PLACES=74, PETRI_TRANSITIONS=103} [2023-11-06 22:44:44,732 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, -3 predicate places. [2023-11-06 22:44:44,732 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 103 transitions, 478 flow [2023-11-06 22:44:44,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 455.6666666666667) internal successors, (1367), 3 states have internal predecessors, (1367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:44,733 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:44:44,733 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:44:44,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 22:44:44,734 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread_usbErr6ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-11-06 22:44:44,734 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:44:44,734 INFO L85 PathProgramCache]: Analyzing trace with hash -1716950220, now seen corresponding path program 1 times [2023-11-06 22:44:44,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:44:44,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328575356] [2023-11-06 22:44:44,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:44:44,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:44:44,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:44,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:44:44,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:44:44,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328575356] [2023-11-06 22:44:44,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328575356] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:44:44,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:44:44,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:44:44,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033344170] [2023-11-06 22:44:44,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:44:44,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:44:44,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:44:44,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:44:44,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:44:44,851 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 463 out of 963 [2023-11-06 22:44:44,853 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 103 transitions, 478 flow. Second operand has 3 states, 3 states have (on average 464.6666666666667) internal successors, (1394), 3 states have internal predecessors, (1394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:44,853 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:44:44,854 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 463 of 963 [2023-11-06 22:44:44,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:44:45,295 INFO L124 PetriNetUnfolderBase]: 1602/3034 cut-off events. [2023-11-06 22:44:45,295 INFO L125 PetriNetUnfolderBase]: For 2995/3149 co-relation queries the response was YES. [2023-11-06 22:44:45,310 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7750 conditions, 3034 events. 1602/3034 cut-off events. For 2995/3149 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 19069 event pairs, 465 based on Foata normal form. 24/2206 useless extension candidates. Maximal degree in co-relation 7740. Up to 1274 conditions per place. [2023-11-06 22:44:45,330 INFO L140 encePairwiseOnDemand]: 956/963 looper letters, 67 selfloop transitions, 6 changer transitions 0/117 dead transitions. [2023-11-06 22:44:45,330 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 117 transitions, 666 flow [2023-11-06 22:44:45,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:44:45,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:44:45,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1438 transitions. [2023-11-06 22:44:45,337 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49775008653513325 [2023-11-06 22:44:45,337 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1438 transitions. [2023-11-06 22:44:45,338 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1438 transitions. [2023-11-06 22:44:45,339 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:44:45,339 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1438 transitions. [2023-11-06 22:44:45,344 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 479.3333333333333) internal successors, (1438), 3 states have internal predecessors, (1438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:45,352 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 963.0) internal successors, (3852), 4 states have internal predecessors, (3852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:45,354 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 963.0) internal successors, (3852), 4 states have internal predecessors, (3852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:45,354 INFO L175 Difference]: Start difference. First operand has 74 places, 103 transitions, 478 flow. Second operand 3 states and 1438 transitions. [2023-11-06 22:44:45,354 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 117 transitions, 666 flow [2023-11-06 22:44:45,365 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 117 transitions, 646 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:44:45,368 INFO L231 Difference]: Finished difference. Result has 77 places, 106 transitions, 498 flow [2023-11-06 22:44:45,368 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=963, PETRI_DIFFERENCE_MINUEND_FLOW=460, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=498, PETRI_PLACES=77, PETRI_TRANSITIONS=106} [2023-11-06 22:44:45,369 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 0 predicate places. [2023-11-06 22:44:45,370 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 106 transitions, 498 flow [2023-11-06 22:44:45,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 464.6666666666667) internal successors, (1394), 3 states have internal predecessors, (1394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:45,371 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:44:45,371 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:44:45,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 22:44:45,372 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-11-06 22:44:45,372 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:44:45,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1602438549, now seen corresponding path program 1 times [2023-11-06 22:44:45,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:44:45,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205824475] [2023-11-06 22:44:45,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:44:45,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:44:45,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:45,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:44:45,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:44:45,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205824475] [2023-11-06 22:44:45,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205824475] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:44:45,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:44:45,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:44:45,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430758843] [2023-11-06 22:44:45,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:44:45,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:44:45,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:44:45,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:44:45,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:44:46,227 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 472 out of 963 [2023-11-06 22:44:46,232 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 106 transitions, 498 flow. Second operand has 6 states, 6 states have (on average 473.5) internal successors, (2841), 6 states have internal predecessors, (2841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:46,232 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:44:46,232 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 472 of 963 [2023-11-06 22:44:46,232 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:44:47,363 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1218] L1753-4-->L1754-1: Formula: (= |v_#race~pdev~0_77| 0) InVars {} OutVars{thread_usbThread1of1ForFork1_#t~nondet46#1=|v_thread_usbThread1of1ForFork1_#t~nondet46#1_15|, #race~pdev~0=|v_#race~pdev~0_77|} AuxVars[] AssignedVars[thread_usbThread1of1ForFork1_#t~nondet46#1, #race~pdev~0][189], [thread_ath9kThread1of1ForFork0InUse, 523#(= 0 (select (select |#race| |~#t1~0.base|) |~#t1~0.offset|)), Black: 512#(= |#race~pdev~0| |thread_ath9kThread1of1ForFork0_ath9k_flush_#t~nondet32#1|), Black: 517#(= ~ldv_usb_state~0 0), 484#true, Black: 489#(= |#race~pdev~0| |thread_usbThread1of1ForFork1_#t~nondet49#1|), 499#true, 208#L1754-1true, Black: 495#(= |#race~pdev~0| |thread_usbThread1of1ForFork1_#t~nondet46#1|), 227#L1792-1true, 515#true, 31#L1700-2true, Black: 504#true]) [2023-11-06 22:44:47,363 INFO L294 olderBase$Statistics]: this new event has 27 ancestors and is cut-off event [2023-11-06 22:44:47,364 INFO L297 olderBase$Statistics]: existing Event has 20 ancestors and is cut-off event [2023-11-06 22:44:47,364 INFO L297 olderBase$Statistics]: existing Event has 20 ancestors and is cut-off event [2023-11-06 22:44:47,364 INFO L297 olderBase$Statistics]: existing Event has 20 ancestors and is cut-off event [2023-11-06 22:44:47,364 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1218] L1753-4-->L1754-1: Formula: (= |v_#race~pdev~0_77| 0) InVars {} OutVars{thread_usbThread1of1ForFork1_#t~nondet46#1=|v_thread_usbThread1of1ForFork1_#t~nondet46#1_15|, #race~pdev~0=|v_#race~pdev~0_77|} AuxVars[] AssignedVars[thread_usbThread1of1ForFork1_#t~nondet46#1, #race~pdev~0][190], [thread_ath9kThread1of1ForFork0InUse, Black: 512#(= |#race~pdev~0| |thread_ath9kThread1of1ForFork0_ath9k_flush_#t~nondet32#1|), Black: 517#(= ~ldv_usb_state~0 0), 484#true, Black: 489#(= |#race~pdev~0| |thread_usbThread1of1ForFork1_#t~nondet49#1|), 499#true, 208#L1754-1true, Black: 495#(= |#race~pdev~0| |thread_usbThread1of1ForFork1_#t~nondet46#1|), 515#true, 412#L1792-2true, 31#L1700-2true, Black: 504#true, 524#(and (= 0 (select (select |#race| |~#t1~0.base|) |~#t1~0.offset|)) (= (select (select |#race| |~#t1~0.base|) (+ |~#t1~0.offset| 1)) 0))]) [2023-11-06 22:44:47,364 INFO L294 olderBase$Statistics]: this new event has 28 ancestors and is cut-off event [2023-11-06 22:44:47,365 INFO L297 olderBase$Statistics]: existing Event has 21 ancestors and is cut-off event [2023-11-06 22:44:47,365 INFO L297 olderBase$Statistics]: existing Event has 21 ancestors and is cut-off event [2023-11-06 22:44:47,365 INFO L297 olderBase$Statistics]: existing Event has 21 ancestors and is cut-off event [2023-11-06 22:44:47,372 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1218] L1753-4-->L1754-1: Formula: (= |v_#race~pdev~0_77| 0) InVars {} OutVars{thread_usbThread1of1ForFork1_#t~nondet46#1=|v_thread_usbThread1of1ForFork1_#t~nondet46#1_15|, #race~pdev~0=|v_#race~pdev~0_77|} AuxVars[] AssignedVars[thread_usbThread1of1ForFork1_#t~nondet46#1, #race~pdev~0][212], [thread_ath9kThread1of1ForFork0InUse, Black: 512#(= |#race~pdev~0| |thread_ath9kThread1of1ForFork0_ath9k_flush_#t~nondet32#1|), Black: 517#(= ~ldv_usb_state~0 0), 484#true, 105#L1792-3true, Black: 489#(= |#race~pdev~0| |thread_usbThread1of1ForFork1_#t~nondet49#1|), 499#true, 208#L1754-1true, Black: 495#(= |#race~pdev~0| |thread_usbThread1of1ForFork1_#t~nondet46#1|), 525#(and (= 0 (select (select |#race| |~#t1~0.base|) |~#t1~0.offset|)) (= (select (select |#race| |~#t1~0.base|) (+ 2 |~#t1~0.offset|)) 0) (= (select (select |#race| |~#t1~0.base|) (+ |~#t1~0.offset| 1)) 0)), 515#true, 31#L1700-2true, Black: 504#true]) [2023-11-06 22:44:47,373 INFO L294 olderBase$Statistics]: this new event has 29 ancestors and is cut-off event [2023-11-06 22:44:47,373 INFO L297 olderBase$Statistics]: existing Event has 22 ancestors and is cut-off event [2023-11-06 22:44:47,373 INFO L297 olderBase$Statistics]: existing Event has 22 ancestors and is cut-off event [2023-11-06 22:44:47,373 INFO L297 olderBase$Statistics]: existing Event has 22 ancestors and is cut-off event [2023-11-06 22:44:47,399 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1218] L1753-4-->L1754-1: Formula: (= |v_#race~pdev~0_77| 0) InVars {} OutVars{thread_usbThread1of1ForFork1_#t~nondet46#1=|v_thread_usbThread1of1ForFork1_#t~nondet46#1_15|, #race~pdev~0=|v_#race~pdev~0_77|} AuxVars[] AssignedVars[thread_usbThread1of1ForFork1_#t~nondet46#1, #race~pdev~0][232], [thread_ath9kThread1of1ForFork0InUse, Black: 512#(= |#race~pdev~0| |thread_ath9kThread1of1ForFork0_ath9k_flush_#t~nondet32#1|), Black: 517#(= ~ldv_usb_state~0 0), 484#true, Black: 489#(= |#race~pdev~0| |thread_usbThread1of1ForFork1_#t~nondet49#1|), 499#true, 208#L1754-1true, 526#(and (= 0 (select (select |#race| |~#t1~0.base|) |~#t1~0.offset|)) (= (select (select |#race| |~#t1~0.base|) (+ 2 |~#t1~0.offset|)) 0) (= (select (select |#race| |~#t1~0.base|) (+ 3 |~#t1~0.offset|)) 0) (= (select (select |#race| |~#t1~0.base|) (+ |~#t1~0.offset| 1)) 0)), Black: 495#(= |#race~pdev~0| |thread_usbThread1of1ForFork1_#t~nondet46#1|), 61#L1792-4true, 515#true, 31#L1700-2true, Black: 504#true]) [2023-11-06 22:44:47,399 INFO L294 olderBase$Statistics]: this new event has 30 ancestors and is cut-off event [2023-11-06 22:44:47,400 INFO L297 olderBase$Statistics]: existing Event has 23 ancestors and is cut-off event [2023-11-06 22:44:47,400 INFO L297 olderBase$Statistics]: existing Event has 23 ancestors and is cut-off event [2023-11-06 22:44:47,400 INFO L297 olderBase$Statistics]: existing Event has 23 ancestors and is cut-off event [2023-11-06 22:44:47,418 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1218] L1753-4-->L1754-1: Formula: (= |v_#race~pdev~0_77| 0) InVars {} OutVars{thread_usbThread1of1ForFork1_#t~nondet46#1=|v_thread_usbThread1of1ForFork1_#t~nondet46#1_15|, #race~pdev~0=|v_#race~pdev~0_77|} AuxVars[] AssignedVars[thread_usbThread1of1ForFork1_#t~nondet46#1, #race~pdev~0][232], [thread_ath9kThread1of1ForFork0InUse, Black: 512#(= |#race~pdev~0| |thread_ath9kThread1of1ForFork0_ath9k_flush_#t~nondet32#1|), Black: 517#(= ~ldv_usb_state~0 0), 484#true, 275#L1792-5true, Black: 489#(= |#race~pdev~0| |thread_usbThread1of1ForFork1_#t~nondet49#1|), 499#true, 526#(and (= 0 (select (select |#race| |~#t1~0.base|) |~#t1~0.offset|)) (= (select (select |#race| |~#t1~0.base|) (+ 2 |~#t1~0.offset|)) 0) (= (select (select |#race| |~#t1~0.base|) (+ 3 |~#t1~0.offset|)) 0) (= (select (select |#race| |~#t1~0.base|) (+ |~#t1~0.offset| 1)) 0)), 208#L1754-1true, Black: 495#(= |#race~pdev~0| |thread_usbThread1of1ForFork1_#t~nondet46#1|), 515#true, 31#L1700-2true, Black: 504#true]) [2023-11-06 22:44:47,419 INFO L294 olderBase$Statistics]: this new event has 31 ancestors and is cut-off event [2023-11-06 22:44:47,419 INFO L297 olderBase$Statistics]: existing Event has 24 ancestors and is cut-off event [2023-11-06 22:44:47,419 INFO L297 olderBase$Statistics]: existing Event has 24 ancestors and is cut-off event [2023-11-06 22:44:47,419 INFO L297 olderBase$Statistics]: existing Event has 24 ancestors and is cut-off event [2023-11-06 22:44:47,439 INFO L124 PetriNetUnfolderBase]: 3932/6450 cut-off events. [2023-11-06 22:44:47,439 INFO L125 PetriNetUnfolderBase]: For 7390/8708 co-relation queries the response was YES. [2023-11-06 22:44:47,463 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17528 conditions, 6450 events. 3932/6450 cut-off events. For 7390/8708 co-relation queries the response was YES. Maximal size of possible extension queue 293. Compared 41036 event pairs, 775 based on Foata normal form. 205/5290 useless extension candidates. Maximal degree in co-relation 17517. Up to 2095 conditions per place. [2023-11-06 22:44:47,502 INFO L140 encePairwiseOnDemand]: 958/963 looper letters, 247 selfloop transitions, 4 changer transitions 0/289 dead transitions. [2023-11-06 22:44:47,502 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 289 transitions, 2010 flow [2023-11-06 22:44:47,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:44:47,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:44:47,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2973 transitions. [2023-11-06 22:44:47,514 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5145379023883697 [2023-11-06 22:44:47,514 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2973 transitions. [2023-11-06 22:44:47,515 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2973 transitions. [2023-11-06 22:44:47,517 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:44:47,517 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2973 transitions. [2023-11-06 22:44:47,525 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 495.5) internal successors, (2973), 6 states have internal predecessors, (2973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:47,541 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 963.0) internal successors, (6741), 7 states have internal predecessors, (6741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:47,543 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 963.0) internal successors, (6741), 7 states have internal predecessors, (6741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:47,543 INFO L175 Difference]: Start difference. First operand has 77 places, 106 transitions, 498 flow. Second operand 6 states and 2973 transitions. [2023-11-06 22:44:47,544 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 289 transitions, 2010 flow [2023-11-06 22:44:47,557 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 289 transitions, 1958 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 22:44:47,561 INFO L231 Difference]: Finished difference. Result has 79 places, 105 transitions, 492 flow [2023-11-06 22:44:47,562 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=963, PETRI_DIFFERENCE_MINUEND_FLOW=484, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=492, PETRI_PLACES=79, PETRI_TRANSITIONS=105} [2023-11-06 22:44:47,563 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 2 predicate places. [2023-11-06 22:44:47,563 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 105 transitions, 492 flow [2023-11-06 22:44:47,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 473.5) internal successors, (2841), 6 states have internal predecessors, (2841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:47,564 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:44:47,565 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:44:47,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-06 22:44:47,565 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread_usbErr11ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-11-06 22:44:47,565 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:44:47,566 INFO L85 PathProgramCache]: Analyzing trace with hash 368126566, now seen corresponding path program 1 times [2023-11-06 22:44:47,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:44:47,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238257629] [2023-11-06 22:44:47,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:44:47,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:44:47,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:47,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:44:47,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:44:47,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238257629] [2023-11-06 22:44:47,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238257629] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:44:47,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:44:47,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:44:47,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827460513] [2023-11-06 22:44:47,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:44:47,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:44:47,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:44:47,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:44:47,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:44:47,767 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 477 out of 963 [2023-11-06 22:44:47,769 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 105 transitions, 492 flow. Second operand has 3 states, 3 states have (on average 480.3333333333333) internal successors, (1441), 3 states have internal predecessors, (1441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:47,770 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:44:47,770 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 477 of 963 [2023-11-06 22:44:47,770 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:44:48,209 INFO L124 PetriNetUnfolderBase]: 1641/3104 cut-off events. [2023-11-06 22:44:48,209 INFO L125 PetriNetUnfolderBase]: For 2432/2582 co-relation queries the response was YES. [2023-11-06 22:44:48,223 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7989 conditions, 3104 events. 1641/3104 cut-off events. For 2432/2582 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 19318 event pairs, 803 based on Foata normal form. 48/2372 useless extension candidates. Maximal degree in co-relation 7978. Up to 2231 conditions per place. [2023-11-06 22:44:48,239 INFO L140 encePairwiseOnDemand]: 960/963 looper letters, 70 selfloop transitions, 2 changer transitions 0/115 dead transitions. [2023-11-06 22:44:48,239 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 115 transitions, 668 flow [2023-11-06 22:44:48,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:44:48,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:44:48,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1477 transitions. [2023-11-06 22:44:48,245 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5112495673243337 [2023-11-06 22:44:48,246 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1477 transitions. [2023-11-06 22:44:48,246 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1477 transitions. [2023-11-06 22:44:48,247 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:44:48,247 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1477 transitions. [2023-11-06 22:44:48,251 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 492.3333333333333) internal successors, (1477), 3 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:48,257 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 963.0) internal successors, (3852), 4 states have internal predecessors, (3852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:48,259 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 963.0) internal successors, (3852), 4 states have internal predecessors, (3852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:48,259 INFO L175 Difference]: Start difference. First operand has 79 places, 105 transitions, 492 flow. Second operand 3 states and 1477 transitions. [2023-11-06 22:44:48,259 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 115 transitions, 668 flow [2023-11-06 22:44:48,263 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 115 transitions, 661 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-06 22:44:48,265 INFO L231 Difference]: Finished difference. Result has 78 places, 106 transitions, 499 flow [2023-11-06 22:44:48,266 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=963, PETRI_DIFFERENCE_MINUEND_FLOW=485, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=499, PETRI_PLACES=78, PETRI_TRANSITIONS=106} [2023-11-06 22:44:48,266 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 1 predicate places. [2023-11-06 22:44:48,267 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 106 transitions, 499 flow [2023-11-06 22:44:48,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 480.3333333333333) internal successors, (1441), 3 states have internal predecessors, (1441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:44:48,268 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:44:48,268 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:44:48,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-06 22:44:48,268 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread_usbErr3ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-11-06 22:44:48,269 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:44:48,269 INFO L85 PathProgramCache]: Analyzing trace with hash 370642586, now seen corresponding path program 1 times [2023-11-06 22:44:48,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:44:48,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084880544] [2023-11-06 22:44:48,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:44:48,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:44:48,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:44:48,312 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:44:48,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:44:48,356 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:44:48,356 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 22:44:48,357 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thread_usbErr3ASSERT_VIOLATIONDATA_RACE (39 of 40 remaining) [2023-11-06 22:44:48,359 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE (38 of 40 remaining) [2023-11-06 22:44:48,360 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE (37 of 40 remaining) [2023-11-06 22:44:48,360 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (36 of 40 remaining) [2023-11-06 22:44:48,360 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (35 of 40 remaining) [2023-11-06 22:44:48,360 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (34 of 40 remaining) [2023-11-06 22:44:48,360 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (33 of 40 remaining) [2023-11-06 22:44:48,361 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (32 of 40 remaining) [2023-11-06 22:44:48,361 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (31 of 40 remaining) [2023-11-06 22:44:48,361 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (30 of 40 remaining) [2023-11-06 22:44:48,361 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 40 remaining) [2023-11-06 22:44:48,361 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr0ASSERT_VIOLATIONDATA_RACE (28 of 40 remaining) [2023-11-06 22:44:48,362 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr11ASSERT_VIOLATIONDATA_RACE (27 of 40 remaining) [2023-11-06 22:44:48,362 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr1ASSERT_VIOLATIONDATA_RACE (26 of 40 remaining) [2023-11-06 22:44:48,362 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr12ASSERT_VIOLATIONDATA_RACE (25 of 40 remaining) [2023-11-06 22:44:48,362 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr5ASSERT_VIOLATIONDATA_RACE (24 of 40 remaining) [2023-11-06 22:44:48,362 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr10ASSERT_VIOLATIONDATA_RACE (23 of 40 remaining) [2023-11-06 22:44:48,363 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr6ASSERT_VIOLATIONDATA_RACE (22 of 40 remaining) [2023-11-06 22:44:48,363 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr7ASSERT_VIOLATIONDATA_RACE (21 of 40 remaining) [2023-11-06 22:44:48,363 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr8ASSERT_VIOLATIONDATA_RACE (20 of 40 remaining) [2023-11-06 22:44:48,363 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr2ASSERT_VIOLATIONDATA_RACE (19 of 40 remaining) [2023-11-06 22:44:48,363 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr9ASSERT_VIOLATIONDATA_RACE (18 of 40 remaining) [2023-11-06 22:44:48,363 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr3ASSERT_VIOLATIONDATA_RACE (17 of 40 remaining) [2023-11-06 22:44:48,364 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr4ASSERT_VIOLATIONDATA_RACE (16 of 40 remaining) [2023-11-06 22:44:48,364 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 40 remaining) [2023-11-06 22:44:48,364 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE (14 of 40 remaining) [2023-11-06 22:44:48,364 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE (13 of 40 remaining) [2023-11-06 22:44:48,364 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr0ASSERT_VIOLATIONDATA_RACE (12 of 40 remaining) [2023-11-06 22:44:48,365 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr11ASSERT_VIOLATIONDATA_RACE (11 of 40 remaining) [2023-11-06 22:44:48,365 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr1ASSERT_VIOLATIONDATA_RACE (10 of 40 remaining) [2023-11-06 22:44:48,365 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr12ASSERT_VIOLATIONDATA_RACE (9 of 40 remaining) [2023-11-06 22:44:48,365 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr5ASSERT_VIOLATIONDATA_RACE (8 of 40 remaining) [2023-11-06 22:44:48,365 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr10ASSERT_VIOLATIONDATA_RACE (7 of 40 remaining) [2023-11-06 22:44:48,366 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr6ASSERT_VIOLATIONDATA_RACE (6 of 40 remaining) [2023-11-06 22:44:48,366 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr7ASSERT_VIOLATIONDATA_RACE (5 of 40 remaining) [2023-11-06 22:44:48,366 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr8ASSERT_VIOLATIONDATA_RACE (4 of 40 remaining) [2023-11-06 22:44:48,366 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr2ASSERT_VIOLATIONDATA_RACE (3 of 40 remaining) [2023-11-06 22:44:48,366 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr9ASSERT_VIOLATIONDATA_RACE (2 of 40 remaining) [2023-11-06 22:44:48,367 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr4ASSERT_VIOLATIONDATA_RACE (1 of 40 remaining) [2023-11-06 22:44:48,367 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbThread1of1ForFork1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 40 remaining) [2023-11-06 22:44:48,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-06 22:44:48,367 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:44:48,375 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-06 22:44:48,375 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:44:48,406 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch43 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2023-11-06 22:44:48,408 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch43 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2023-11-06 22:44:48,416 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:44:48 BasicIcfg [2023-11-06 22:44:48,416 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:44:48,417 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:44:48,417 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:44:48,417 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:44:48,418 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:44:28" (3/4) ... [2023-11-06 22:44:48,420 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-06 22:44:48,421 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:44:48,422 INFO L158 Benchmark]: Toolchain (without parser) took 22574.32ms. Allocated memory was 117.4MB in the beginning and 333.4MB in the end (delta: 216.0MB). Free memory was 77.9MB in the beginning and 246.8MB in the end (delta: -168.9MB). Peak memory consumption was 49.0MB. Max. memory is 16.1GB. [2023-11-06 22:44:48,422 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 117.4MB. Free memory is still 64.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:44:48,423 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1727.42ms. Allocated memory was 117.4MB in the beginning and 153.1MB in the end (delta: 35.7MB). Free memory was 77.6MB in the beginning and 83.5MB in the end (delta: -6.0MB). Peak memory consumption was 37.1MB. Max. memory is 16.1GB. [2023-11-06 22:44:48,423 INFO L158 Benchmark]: Boogie Procedure Inliner took 120.01ms. Allocated memory is still 153.1MB. Free memory was 83.5MB in the beginning and 79.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 22:44:48,424 INFO L158 Benchmark]: Boogie Preprocessor took 75.16ms. Allocated memory is still 153.1MB. Free memory was 79.3MB in the beginning and 76.4MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 22:44:48,424 INFO L158 Benchmark]: RCFGBuilder took 1019.94ms. Allocated memory is still 153.1MB. Free memory was 75.6MB in the beginning and 95.8MB in the end (delta: -20.1MB). Peak memory consumption was 15.3MB. Max. memory is 16.1GB. [2023-11-06 22:44:48,425 INFO L158 Benchmark]: TraceAbstraction took 19618.49ms. Allocated memory was 153.1MB in the beginning and 333.4MB in the end (delta: 180.4MB). Free memory was 94.6MB in the beginning and 246.8MB in the end (delta: -152.2MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. [2023-11-06 22:44:48,425 INFO L158 Benchmark]: Witness Printer took 4.48ms. Allocated memory is still 333.4MB. Free memory is still 246.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:44:48,427 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 117.4MB. Free memory is still 64.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1727.42ms. Allocated memory was 117.4MB in the beginning and 153.1MB in the end (delta: 35.7MB). Free memory was 77.6MB in the beginning and 83.5MB in the end (delta: -6.0MB). Peak memory consumption was 37.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 120.01ms. Allocated memory is still 153.1MB. Free memory was 83.5MB in the beginning and 79.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 75.16ms. Allocated memory is still 153.1MB. Free memory was 79.3MB in the beginning and 76.4MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1019.94ms. Allocated memory is still 153.1MB. Free memory was 75.6MB in the beginning and 95.8MB in the end (delta: -20.1MB). Peak memory consumption was 15.3MB. Max. memory is 16.1GB. * TraceAbstraction took 19618.49ms. Allocated memory was 153.1MB in the beginning and 333.4MB in the end (delta: 180.4MB). Free memory was 94.6MB in the beginning and 246.8MB in the end (delta: -152.2MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. * Witness Printer took 4.48ms. Allocated memory is still 333.4MB. Free memory is still 246.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch43 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch43 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.1s, 330 PlacesBefore, 77 PlacesAfterwards, 355 TransitionsBefore, 84 TransitionsAfterwards, 24066 CoEnabledTransitionPairs, 7 FixpointIterations, 93 TrivialSequentialCompositions, 233 ConcurrentSequentialCompositions, 15 TrivialYvCompositions, 81 ConcurrentYvCompositions, 18 ChoiceCompositions, 440 TotalNumberOfCompositions, 57222 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 29590, independent: 28878, independent conditional: 0, independent unconditional: 28878, dependent: 712, dependent conditional: 0, dependent unconditional: 712, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 14680, independent: 14551, independent conditional: 0, independent unconditional: 14551, dependent: 129, dependent conditional: 0, dependent unconditional: 129, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 29590, independent: 14327, independent conditional: 0, independent unconditional: 14327, dependent: 583, dependent conditional: 0, dependent unconditional: 583, unknown: 14680, unknown conditional: 0, unknown unconditional: 14680] , Statistics on independence cache: Total cache size (in pairs): 606, Positive cache size: 558, Positive conditional cache size: 0, Positive unconditional cache size: 558, Negative cache size: 48, Negative conditional cache size: 0, Negative unconditional cache size: 48, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 1753]: Data race detected [2023-11-06 22:44:48,448 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch43 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2023-11-06 22:44:48,448 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch43 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2023-11-06 22:44:48,462 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch43 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2023-11-06 22:44:48,463 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch43 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement Data race detected The following path leads to a data race: [L1694] 0 pthread_t t1, t2; [L1695] 0 pthread_mutex_t mutex; [L1696] 0 int pdev; [L1741] 0 int ldv_usb_state; [L1798] CALL 0 module_init() [L1779] 0 pdev = 1 [L1780] EXPR 0 pdev==1 [L1780] CALL 0 ldv_assert(pdev==1) [L1693] COND FALSE 0 !(!expression) [L1780] RET 0 ldv_assert(pdev==1) [L1781] COND TRUE 0 __VERIFIER_nondet_int() [L1782] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread_usb, ((void *)0)) VAL [ldv_usb_state=0, mutex={5:0}, pdev=1, pthread_create(&t1, ((void *)0), thread_usb, ((void *)0))=-1, t1={3:0}, t2={4:0}] [L1743] 1 ldv_usb_state = 0 [L1744] 1 int probe_ret; VAL [arg={0:0}, arg={0:0}, ldv_usb_state=0, mutex={5:0}, pdev=1, t1={3:0}, t2={4:0}] [L1745] COND TRUE 1 1 [L1747] 1 case 0: [L1748] 1 ldv_usb_state==0 [L1748] COND TRUE 1 ldv_usb_state==0 [L1749] CALL, EXPR 1 ath_ahb_probe() [L1730] 1 int error; [L1731] CALL, EXPR 1 ieee80211_register_hw() [L1717] COND TRUE 1 __VERIFIER_nondet_int() [L1718] FCALL, FORK 1 pthread_create(&t2, ((void *)0), thread_ath9k, ((void *)0)) VAL [ldv_usb_state=0, mutex={5:0}, pdev=1, pthread_create(&t2, ((void *)0), thread_ath9k, ((void *)0))=0, t1={3:0}, t2={4:0}] [L1704] COND TRUE 2 1 [L1706] 2 case 1: [L1707] CALL 2 ath9k_flush() [L1699] 2 pdev = 6 VAL [ldv_usb_state=0, mutex={5:0}, pdev=6, t1={3:0}, t2={4:0}] [L1719] 1 return 0; [L1731] RET, EXPR 1 ieee80211_register_hw() [L1731] 1 error = ieee80211_register_hw() [L1732] COND FALSE 1 !(\read(error)) [L1734] 1 return 0; [L1749] RET, EXPR 1 ath_ahb_probe() [L1749] 1 probe_ret = ath_ahb_probe() [L1750] COND FALSE 1 !(probe_ret!=0) [L1752] 1 ldv_usb_state = 1 [L1753] 1 pdev = 7 VAL [__VERIFIER_nondet_int()=0, arg={0:0}, arg={0:0}, ldv_usb_state=1, mutex={5:0}, pdev = 7=1157, pdev=7, probe_ret=0, t1={3:0}, t2={4:0}] [L1753] 1 pdev = 7 VAL [__VERIFIER_nondet_int()=0, arg={0:0}, arg={0:0}, ldv_usb_state=1, mutex={5:0}, pdev = 7=1157, pdev=7, probe_ret=0, t1={3:0}, t2={4:0}] Now there is a data race on ~pdev~0 between C: pdev = 6 [1699] and C: pdev = 7 [1753] - UnprovableResult [Line: 1699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1700]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1779]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1780]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1785]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1786]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1792]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1794]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1795]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1782]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 1743]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1773]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1748]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1774]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1758]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1766]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1725]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1760]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1761]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1752]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1762]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1754]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1718]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 1718]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 524 locations, 40 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: 19.4s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 11.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 894 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 386 mSDsluCounter, 151 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 103 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1468 IncrementalHoareTripleChecker+Invalid, 1571 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 103 mSolverCounterUnsat, 151 mSDtfsCounter, 1468 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=499occurred in iteration=9, InterpolantAutomatonStates: 29, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 82 NumberOfCodeBlocks, 82 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 61 ConstructedInterpolants, 0 QuantifiedInterpolants, 158 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 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 RESULT: Ultimate proved your program to be incorrect! [2023-11-06 22:44:48,488 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfb47d1d-07f0-4716-8e70-98fd262375bd/bin/uautomizer-verify-WvqO1wxjHP/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE